public void TestDataStyle()
{
string filepath = TempFile.GetTempFilePath("TestWriteSheetStyleDate",
".xls");
FileStream out1 = new FileStream(filepath, FileMode.OpenOrCreate);
HSSFWorkbook wb = new HSSFWorkbook();
NPOI.SS.UserModel.ISheet s = wb.CreateSheet();
NPOI.SS.UserModel.ICellStyle cs = wb.CreateCellStyle();
IRow row = s.CreateRow(0);
// with Date:
ICell cell = row.CreateCell(1);
cs.DataFormat = (HSSFDataFormat.GetBuiltinFormat("m/d/yy"));
cell.CellStyle = (cs);
cell.SetCellValue(DateTime.Now);
// with Calendar:
cell = row.CreateCell(2);
cs.DataFormat = (HSSFDataFormat.GetBuiltinFormat("m/d/yy"));
cell.CellStyle = (cs);
cell.SetCellValue(DateTime.Now);
wb.Write(out1);
out1.Close();
SanityChecker sanityChecker = new SanityChecker();
sanityChecker.CheckHSSFWorkbook(wb);
Assert.AreEqual(0, s.LastRowNum, "LAST ROW ");
Assert.AreEqual(0, s.FirstRowNum, "FIRST ROW ");
}
/// <summary>
/// 插入数据行
/// </summary>
protected static void InsertRow(DataTable dtSource, HSSFWorkbook excelWorkbook)
{
int rowCount = 0;
int sheetCount = 1;
NPOI.SS.UserModel.ISheet newsheet = null;
//循环数据源导出数据集
newsheet = excelWorkbook.CreateSheet("Sheet" + sheetCount);
CreateHeader(newsheet, excelWorkbook);
#region 样式声明
//格式化显示
NPOI.SS.UserModel.ICellStyle cellStyle_DateTime = excelWorkbook.CreateCellStyle();
NPOI.SS.UserModel.IDataFormat format = excelWorkbook.CreateDataFormat();
cellStyle_DateTime.DataFormat = format.GetFormat("yyyy-mm-dd hh:mm:ss");
#endregion
foreach (DataRow dr in dtSource.Rows)
{
rowCount++;
//超出10000条数据 创建新的工作簿
if (rowCount == 5000)
{
rowCount = 1;
sheetCount++;
newsheet = excelWorkbook.CreateSheet("Sheet" + sheetCount);
CreateHeader(newsheet, excelWorkbook);
}
NPOI.SS.UserModel.IRow newRow = newsheet.CreateRow(rowCount);
InsertCell(dtSource, dr, newRow, newsheet, excelWorkbook, cellStyle_DateTime);
}
}
public void TestCloneStyleSameWB()
{
HSSFWorkbook wb = new HSSFWorkbook();
IFont fnt = wb.CreateFont();
fnt.FontName = ("TestingFont");
Assert.AreEqual(5, wb.NumberOfFonts);
NPOI.SS.UserModel.ICellStyle orig = wb.CreateCellStyle();
orig.Alignment = (HorizontalAlignment.Right);
orig.SetFont(fnt);
orig.DataFormat = ((short)18);
Assert.AreEqual(HorizontalAlignment.Right, orig.Alignment);
Assert.AreEqual(fnt, orig.GetFont(wb));
Assert.AreEqual(18, orig.DataFormat);
NPOI.SS.UserModel.ICellStyle clone = wb.CreateCellStyle();
Assert.AreNotEqual(HorizontalAlignment.Right, clone.Alignment);
Assert.AreNotEqual(fnt, clone.GetFont(wb));
Assert.AreNotEqual(18, clone.DataFormat);
clone.CloneStyleFrom(orig);
Assert.AreEqual(HorizontalAlignment.Right, orig.Alignment);
Assert.AreEqual(fnt, clone.GetFont(wb));
Assert.AreEqual(18, clone.DataFormat);
Assert.AreEqual(5, wb.NumberOfFonts);
orig.Alignment = HorizontalAlignment.Left;
Assert.AreEqual(HorizontalAlignment.Right, clone.Alignment);
}
public void TestWriteSheetFont()
{
HSSFWorkbook wb = new HSSFWorkbook();
NPOI.SS.UserModel.ISheet s = wb.CreateSheet();
IRow r = null;
//ICell c = null;
IFont fnt = wb.CreateFont();
NPOI.SS.UserModel.ICellStyle cs = wb.CreateCellStyle();
fnt.Color = (NPOI.HSSF.Util.HSSFColor.Red.Index);
fnt.Boldweight = (short)FontBoldWeight.Bold;
cs.SetFont(fnt);
for (short rownum = (short)0; rownum < 100; rownum++)
{
r = s.CreateRow(rownum);
r.RowStyle = (cs);
r.CreateCell(0);
}
wb = HSSFTestDataSamples.WriteOutAndReadBack(wb);
SanityChecker sanityChecker = new SanityChecker();
sanityChecker.CheckHSSFWorkbook(wb);
Assert.AreEqual(99, s.LastRowNum, "LAST ROW == 99");
Assert.AreEqual(0, s.FirstRowNum, "FIRST ROW == 0");
}
public void TestDataStyle()
{
HSSFWorkbook wb = new HSSFWorkbook();
NPOI.SS.UserModel.ISheet s = wb.CreateSheet();
NPOI.SS.UserModel.ICellStyle cs = wb.CreateCellStyle();
IRow row = s.CreateRow((short)0);
// with Date:
cs.DataFormat = (HSSFDataFormat.GetBuiltinFormat("m/d/yy"));
row.RowStyle = (cs);
row.CreateCell(0);
// with Calendar:
row = s.CreateRow((short)1);
cs.DataFormat = (HSSFDataFormat.GetBuiltinFormat("m/d/yy"));
row.RowStyle = (cs);
row.CreateCell(0);
wb = HSSFTestDataSamples.WriteOutAndReadBack(wb);
SanityChecker sanityChecker = new SanityChecker();
sanityChecker.CheckHSSFWorkbook(wb);
Assert.AreEqual(1, s.LastRowNum, "LAST ROW ");
Assert.AreEqual(0, s.FirstRowNum, "FIRST ROW ");
}
/// <summary>
/// Returns a map containing the format properties of the given cell style.
/// </summary>
/// <param name="style">cell style</param>
/// <returns>map of format properties (String -> Object)</returns>
private static Hashtable GetFormatProperties(NPOI.SS.UserModel.ICellStyle style)
{
Hashtable properties = new Hashtable();
PutShort(properties, ALIGNMENT, (short)style.Alignment);
PutShort(properties, BORDER_BOTTOM, (short)style.BorderBottom);
PutShort(properties, BORDER_LEFT, (short)style.BorderLeft);
PutShort(properties, BORDER_RIGHT, (short)style.BorderRight);
PutShort(properties, BORDER_TOP, (short)style.BorderTop);
PutShort(properties, BOTTOM_BORDER_COLOR, style.BottomBorderColor);
PutShort(properties, DATA_FORMAT, style.DataFormat);
PutShort(properties, FILL_BACKGROUND_COLOR, style.FillBackgroundColor);
PutShort(properties, FILL_FOREGROUND_COLOR, style.FillForegroundColor);
PutShort(properties, FILL_PATTERN, (short)style.FillPattern);
PutShort(properties, FONT, style.FontIndex);
PutBoolean(properties, HIDDEN, style.IsHidden);
PutShort(properties, INDENTION, style.Indention);
PutShort(properties, LEFT_BORDER_COLOR, style.LeftBorderColor);
PutBoolean(properties, LOCKED, style.IsLocked);
PutShort(properties, RIGHT_BORDER_COLOR, style.RightBorderColor);
PutShort(properties, ROTATION, style.Rotation);
PutShort(properties, TOP_BORDER_COLOR, style.TopBorderColor);
PutShort(properties, VERTICAL_ALIGNMENT, (short)style.VerticalAlignment);
PutBoolean(properties, WRAP_TEXT, style.WrapText);
return(properties);
}
public void TestDoesNoHarmIfNothingToDo()
{
HSSFWorkbook wb = new HSSFWorkbook();
IFont f = wb.CreateFont();
f.FontName = ("Testing");
NPOI.SS.UserModel.ICellStyle s = wb.CreateCellStyle();
s.SetFont(f);
Assert.AreEqual(5, wb.NumberOfFonts);
Assert.AreEqual(22, wb.NumCellStyles);
// Optimise fonts
HSSFOptimiser.OptimiseFonts(wb);
Assert.AreEqual(5, wb.NumberOfFonts);
Assert.AreEqual(22, wb.NumCellStyles);
Assert.AreEqual(f, s.GetFont(wb));
// Optimise styles
HSSFOptimiser.OptimiseCellStyles(wb);
Assert.AreEqual(5, wb.NumberOfFonts);
Assert.AreEqual(22, wb.NumCellStyles);
Assert.AreEqual(f, s.GetFont(wb));
}
/**
* This method attempt to find an already existing HSSFCellStyle that matches
* what you want the style to be. If it does not find the style, then it
* Creates a new one. If it does Create a new one, then it applies the
* propertyName and propertyValue to the style. This is necessary because
* Excel has an upper limit on the number of Styles that it supports.
*
*@param workbook The workbook that is being worked with.
*@param propertyName The name of the property that is to be
* changed.
*@param propertyValue The value of the property that is to be
* changed.
*@param cell The cell that needs it's style changes
*@exception NestableException Thrown if an error happens.
*/
public static void SetCellStyleProperty(NPOI.SS.UserModel.ICell cell, HSSFWorkbook workbook, String propertyName, Object propertyValue)
{
NPOI.SS.UserModel.ICellStyle originalStyle = cell.CellStyle;
NPOI.SS.UserModel.ICellStyle newStyle = null;
Hashtable values = GetFormatProperties(originalStyle);
values[propertyName] = propertyValue;
// index seems like what index the cellstyle is in the list of styles for a workbook.
// not good to compare on!
short numberCellStyles = workbook.NumCellStyles;
for (short i = 0; i < numberCellStyles; i++)
{
NPOI.SS.UserModel.ICellStyle wbStyle = workbook.GetCellStyleAt(i);
Hashtable wbStyleMap = GetFormatProperties(wbStyle);
// if (wbStyleMap.Equals(values))
if (CompareHashTableKeyValueIsEqual(wbStyleMap, values))
{
newStyle = wbStyle;
break;
}
}
if (newStyle == null)
{
newStyle = workbook.CreateCellStyle();
SetFormatProperties(newStyle, workbook, values);
}
cell.CellStyle = (newStyle);
}
public void TestHashEquals()
{
HSSFWorkbook wb = new HSSFWorkbook();
NPOI.SS.UserModel.ISheet s = wb.CreateSheet();
NPOI.SS.UserModel.ICellStyle cs1 = wb.CreateCellStyle();
NPOI.SS.UserModel.ICellStyle cs2 = wb.CreateCellStyle();
IRow row = s.CreateRow(0);
ICell cell1 = row.CreateCell(1);
ICell cell2 = row.CreateCell(2);
cs1.DataFormat = (HSSFDataFormat.GetBuiltinFormat("m/d/yy"));
cs2.DataFormat = (HSSFDataFormat.GetBuiltinFormat("m/dd/yy"));
cell1.CellStyle = (cs1);
cell1.SetCellValue(DateTime.Now);
cell2.CellStyle = (cs2);
cell2.SetCellValue(DateTime.Now);
Assert.AreEqual(cs1.GetHashCode(), cs1.GetHashCode());
Assert.AreEqual(cs2.GetHashCode(), cs2.GetHashCode());
Assert.IsTrue(cs1.Equals(cs1));
Assert.IsTrue(cs2.Equals(cs2));
// Change cs1, hash will alter
int hash1 = cs1.GetHashCode();
cs1.DataFormat = (HSSFDataFormat.GetBuiltinFormat("m/dd/yy"));
Assert.IsFalse(hash1 == cs1.GetHashCode());
}
public void TestDateFormulas()
{
HSSFWorkbook wb = new HSSFWorkbook();
NPOI.SS.UserModel.ISheet s = wb.CreateSheet("TestSheet1");
IRow r = null;
ICell c = null;
r = s.CreateRow(0);
c = r.CreateCell(0);
NPOI.SS.UserModel.ICellStyle cellStyle = wb.CreateCellStyle();
cellStyle.DataFormat = (HSSFDataFormat.GetBuiltinFormat("m/d/yy h:mm"));
c.SetCellValue(new DateTime());
c.CellStyle = (cellStyle);
// Assert.AreEqual("Checking hour = " + hour, date.GetTime().GetTime(),
// NPOI.SS.UserModel.DateUtil.GetJavaDate(excelDate).GetTime());
for (int k = 1; k < 100; k++)
{
r = s.CreateRow(k);
c = r.CreateCell(0);
c.CellFormula = ("A" + (k) + "+1");
c.CellStyle = cellStyle;
}
HSSFTestDataSamples.WriteOutAndReadBack(wb);
}
/// <summary>
/// 写入DataTable到Excel
/// </summary>
/// <param name="dt"></param>
/// <param name="excelFile"></param>
public virtual void writeDataTableToExcel(DataTable dt, string excelFile)
{
//Excel数据
MemoryStream memoryStream = new MemoryStream();
//创建Workbook
NPOI.XSSF.UserModel.XSSFWorkbook workbook = new NPOI.XSSF.UserModel.XSSFWorkbook();
#region 设置Excel样式
//创建单元格设置对象(普通内容)
NPOI.SS.UserModel.ICellStyle cellStyleA = workbook.CreateCellStyle();
cellStyleA.Alignment = NPOI.SS.UserModel.HorizontalAlignment.Left;
cellStyleA.VerticalAlignment = NPOI.SS.UserModel.VerticalAlignment.Center;
cellStyleA.BorderBottom = NPOI.SS.UserModel.BorderStyle.Thin;
cellStyleA.BorderLeft = NPOI.SS.UserModel.BorderStyle.Thin;
cellStyleA.BorderRight = NPOI.SS.UserModel.BorderStyle.Thin;
cellStyleA.BorderTop = NPOI.SS.UserModel.BorderStyle.Thin;
cellStyleA.WrapText = true;
//创建单元格设置对象(普通内容)
NPOI.SS.UserModel.ICellStyle cellStyleB = workbook.CreateCellStyle();
cellStyleB.Alignment = NPOI.SS.UserModel.HorizontalAlignment.Center;
cellStyleB.VerticalAlignment = NPOI.SS.UserModel.VerticalAlignment.Center;
cellStyleB.BorderBottom = NPOI.SS.UserModel.BorderStyle.Thin;
cellStyleB.BorderLeft = NPOI.SS.UserModel.BorderStyle.Thin;
cellStyleB.BorderRight = NPOI.SS.UserModel.BorderStyle.Thin;
cellStyleB.BorderTop = NPOI.SS.UserModel.BorderStyle.Thin;
cellStyleB.WrapText = true;
//创建设置字体对象(内容字体)
NPOI.SS.UserModel.IFont fontA = workbook.CreateFont();
fontA.FontHeightInPoints = 16;//设置字体大小
fontA.FontName = "宋体";
cellStyleA.SetFont(fontA);
//创建设置字体对象(标题字体)
NPOI.SS.UserModel.IFont fontB = workbook.CreateFont();
fontB.FontHeightInPoints = 16;//设置字体大小
fontB.FontName = "宋体";
fontB.Boldweight = (short)NPOI.SS.UserModel.FontBoldWeight.Bold;
cellStyleB.SetFont(fontB);
#endregion
//写入基本数据
writeSheet(workbook, cellStyleA, cellStyleB, dt);
#region 输出文件
//输出到流
workbook.Write(memoryStream);
//写Excel文件
File.WriteAllBytes(excelFile, memoryStream.ToArray());
#endregion
}
public new void TestDefaultColumnStyle()
{
HSSFWorkbook wb = new HSSFWorkbook();
NPOI.SS.UserModel.ICellStyle style = wb.CreateCellStyle();
NPOI.SS.UserModel.ISheet s = wb.CreateSheet();
s.SetDefaultColumnStyle((short)0, style);
IRow r = s.CreateRow(0);
ICell c = r.CreateCell(0);
Assert.AreEqual(style.Index, c.CellStyle.Index, "style should Match");
}
public void TestWriteSheetStyle()
{
string filepath = TempFile.GetTempFilePath("TestWriteSheetStyle",
".xls");
FileStream out1 = new FileStream(filepath, FileMode.OpenOrCreate);
HSSFWorkbook wb = new HSSFWorkbook();
NPOI.SS.UserModel.ISheet s = wb.CreateSheet();
IRow r = null;
ICell c = null;
IFont fnt = wb.CreateFont();
NPOI.SS.UserModel.ICellStyle cs = wb.CreateCellStyle();
NPOI.SS.UserModel.ICellStyle cs2 = wb.CreateCellStyle();
cs.BorderBottom = (BorderStyle.Thin);
cs.BorderLeft = (BorderStyle.Thin);
cs.BorderRight = (BorderStyle.Thin);
cs.BorderTop = (BorderStyle.Thin);
cs.FillForegroundColor = ( short )0xA;
cs.FillPattern = FillPattern.SolidForeground;
fnt.Color = ( short )0xf;
fnt.IsItalic = (true);
cs2.FillForegroundColor = ( short )0x0;
cs2.FillPattern = FillPattern.SolidForeground;
cs2.SetFont(fnt);
for (short rownum = ( short )0; rownum < 100; rownum++)
{
r = s.CreateRow(rownum);
// r.SetRowNum(( short ) rownum);
for (short cellnum = ( short )0; cellnum < 50; cellnum += 2)
{
c = r.CreateCell(cellnum);
c.SetCellValue(rownum * 10000 + cellnum
+ ((( double )rownum / 1000)
+ (( double )cellnum / 10000)));
c.CellStyle = (cs);
c = r.CreateCell(cellnum + 1);
c.SetCellValue("TEST");
c.CellStyle = (cs2);
}
}
wb.Write(out1);
out1.Close();
SanityChecker sanityChecker = new SanityChecker();
sanityChecker.CheckHSSFWorkbook(wb);
Assert.AreEqual(99, s.LastRowNum, "LAST ROW == 99");
Assert.AreEqual(0, s.FirstRowNum, "FIRST ROW == 0");
// assert((s.LastRowNum == 99));
}
/// <summary>
/// 获取单元格样式
/// </summary>
/// <param name="hssfworkbook">Excel操作类</param>
/// <returns></returns>
public static NPOI.SS.UserModel.ICellStyle GetCellStyle(HSSFWorkbook hssfworkbook)
{
NPOI.SS.UserModel.ICellStyle cellstyle = hssfworkbook.CreateCellStyle();
//居中显示
cellstyle.VerticalAlignment = VerticalAlignment.Center;
cellstyle.Alignment = HorizontalAlignment.Center;
//有边框
cellstyle.BorderBottom = NPOI.SS.UserModel.BorderStyle.Thin;
cellstyle.BorderLeft = NPOI.SS.UserModel.BorderStyle.Thin;
cellstyle.BorderRight = NPOI.SS.UserModel.BorderStyle.Thin;
cellstyle.BorderTop = NPOI.SS.UserModel.BorderStyle.Thin;
return(cellstyle);
}
/// <summary>
/// 创建EXCEL文档
/// </summary>
/// <param name="path">保存路径</param>
/// <param name="dt">DataTable</param>
public static void CreatExcel(string fullPath, DataTable dt)
{
HSSFWorkbook hssfworkbook = new HSSFWorkbook();
SummaryInformation si = PropertySetFactory.CreateSummaryInformation();
si.Subject = "主题";
hssfworkbook.SummaryInformation = si;
NPOI.SS.UserModel.ISheet hssfSheet = hssfworkbook.CreateSheet("Sheet");
hssfSheet.DefaultColumnWidth = 18;
NPOI.SS.UserModel.ICellStyle cellStyle = hssfworkbook.CreateCellStyle();
cellStyle.Alignment = HorizontalAlignment.Center;
cellStyle.VerticalAlignment = VerticalAlignment.Center;
//表头
NPOI.SS.UserModel.IRow tagRow = hssfSheet.CreateRow(0);
tagRow.RowStyle = cellStyle;
for (int i = 0; i < dt.Columns.Count; i++)
{
tagRow.CreateCell(i).SetCellValue(dt.Columns[i].ColumnName);
tagRow.GetCell(i).CellStyle = cellStyle;
}
int rowNum = 1;
for (int i = 0; i < dt.Rows.Count; i++)
{
NPOI.SS.UserModel.IRow row = hssfSheet.CreateRow(rowNum);
if (rowNum == 50001)//超过五万条数据,新建一张工作表
{
hssfSheet = hssfworkbook.CreateSheet();
rowNum = 1;
NPOI.SS.UserModel.IRow newrow = hssfSheet.CreateRow(0);
row = hssfSheet.CreateRow(1);
for (int j = 0; j < dt.Columns.Count; j++)
{
newrow.CreateCell(j).SetCellValue(dt.Columns[j].ColumnName.ToString());
}
}
//写入记录
for (int j = 0; j < dt.Columns.Count; j++)
{
row.CreateCell(j).SetCellValue(dt.Rows[i][dt.Columns[j].ColumnName].ToString());
}
rowNum++;
}
FileStream file = new FileStream(fullPath, FileMode.Create);
hssfworkbook.Write(file);
file.Close();
}
public void TestHSSFCellToStringWithDataFormat()
{
HSSFWorkbook wb = new HSSFWorkbook();
ICell cell = wb.CreateSheet("Sheet1").CreateRow(0).CreateCell(0);
cell.SetCellValue(new DateTime(2009, 8, 20));
NPOI.SS.UserModel.ICellStyle cellStyle = wb.CreateCellStyle();
cellStyle.DataFormat = HSSFDataFormat.GetBuiltinFormat("m/d/yy");
cell.CellStyle = cellStyle;
Assert.AreEqual("8/20/09", cell.ToString());
NPOI.SS.UserModel.ICellStyle cellStyle2 = wb.CreateCellStyle();
IDataFormat format = wb.CreateDataFormat();
cellStyle2.DataFormat = format.GetFormat("YYYY-mm/dd");
cell.CellStyle = cellStyle2;
Assert.AreEqual("2009-08/20", cell.ToString());
}
public void TestWriteSheetFont()
{
string filepath = TempFile.GetTempFilePath("TestWriteSheetFont",
".xls");
FileStream out1 = new FileStream(filepath, FileMode.OpenOrCreate);
HSSFWorkbook wb = new HSSFWorkbook();
NPOI.SS.UserModel.ISheet s = wb.CreateSheet();
IRow r = null;
ICell c = null;
IFont fnt = wb.CreateFont();
NPOI.SS.UserModel.ICellStyle cs = wb.CreateCellStyle();
fnt.Color = (NPOI.HSSF.Util.HSSFColor.Red.Index);
fnt.Boldweight = (short)FontBoldWeight.Bold;
cs.SetFont(fnt);
for (short rownum = ( short )0; rownum < 100; rownum++)
{
r = s.CreateRow(rownum);
// r.SetRowNum(( short ) rownum);
for (short cellnum = ( short )0; cellnum < 50; cellnum += 2)
{
c = r.CreateCell(cellnum);
c.SetCellValue(rownum * 10000 + cellnum
+ ((( double )rownum / 1000)
+ (( double )cellnum / 10000)));
c = r.CreateCell(cellnum + 1);
c.SetCellValue("TEST");
c.CellStyle = (cs);
}
}
wb.Write(out1);
out1.Close();
SanityChecker sanityChecker = new SanityChecker();
sanityChecker.CheckHSSFWorkbook(wb);
Assert.AreEqual(99, s.LastRowNum, "LAST ROW == 99");
Assert.AreEqual(0, s.FirstRowNum, "FIRST ROW == 0");
// assert((s.LastRowNum == 99));
}
public void TestWriteDataFormat()
{
string filepath = TempFile.GetTempFilePath("TestWriteSheetSimple", ".xls");
FileStream out1 = new FileStream(filepath, FileMode.OpenOrCreate);
HSSFWorkbook wb = new HSSFWorkbook();
NPOI.SS.UserModel.ISheet s = wb.CreateSheet();
IRow r = null;
ICell c = null;
IDataFormat format = wb.CreateDataFormat();
NPOI.SS.UserModel.ICellStyle cs = wb.CreateCellStyle();
short df = format.GetFormat("0.0");
cs.DataFormat = (df);
r = s.CreateRow(0);
c = r.CreateCell(0);
c.CellStyle = (cs);
c.SetCellValue(1.25);
wb.Write(out1);
out1.Close();
FileStream stream = new FileStream(filepath, FileMode.OpenOrCreate);
POIFSFileSystem fs = new POIFSFileSystem(stream);
HSSFWorkbook workbook = new HSSFWorkbook(fs);
NPOI.SS.UserModel.ISheet sheet = workbook.GetSheetAt(0);
ICell cell =
sheet.GetRow(0).GetCell(0);
format = workbook.CreateDataFormat();
Assert.AreEqual(1.25, cell.NumericCellValue, 1e-10);
Assert.AreEqual(format.GetFormat(df), "0.0");
Assert.AreEqual(format, workbook.CreateDataFormat());
stream.Close();
}
public void TestCloneStyleDiffWB()
{
HSSFWorkbook wbOrig = new HSSFWorkbook();
IFont fnt = wbOrig.CreateFont();
fnt.FontName = ("TestingFont");
Assert.AreEqual(5, wbOrig.NumberOfFonts);
IDataFormat fmt = wbOrig.CreateDataFormat();
fmt.GetFormat("MadeUpOne");
fmt.GetFormat("MadeUpTwo");
NPOI.SS.UserModel.ICellStyle orig = wbOrig.CreateCellStyle();
orig.Alignment = (HorizontalAlignment.Right);
orig.SetFont(fnt);
orig.DataFormat = (fmt.GetFormat("Test##"));
Assert.AreEqual(HorizontalAlignment.Right, orig.Alignment);
Assert.AreEqual(fnt, orig.GetFont(wbOrig));
Assert.AreEqual(fmt.GetFormat("Test##"), orig.DataFormat);
// Now a style on another workbook
HSSFWorkbook wbClone = new HSSFWorkbook();
Assert.AreEqual(4, wbClone.NumberOfFonts);
IDataFormat fmtClone = wbClone.CreateDataFormat();
NPOI.SS.UserModel.ICellStyle clone = wbClone.CreateCellStyle();
Assert.AreEqual(4, wbClone.NumberOfFonts);
Assert.AreNotEqual(HorizontalAlignment.Right, clone.Alignment);
Assert.AreNotEqual("TestingFont", clone.GetFont(wbClone).FontName);
clone.CloneStyleFrom(orig);
Assert.AreEqual(HorizontalAlignment.Right, clone.Alignment);
Assert.AreEqual("TestingFont", clone.GetFont(wbClone).FontName);
Assert.AreEqual(fmtClone.GetFormat("Test##"), clone.DataFormat);
Assert.AreNotEqual(fmtClone.GetFormat("Test##"), fmt.GetFormat("Test##"));
Assert.AreEqual(5, wbClone.NumberOfFonts);
}
/// <summary>
/// 创建excel表头
/// </summary>
/// <param name="dgv"></param>
/// <param name="excelSheet"></param>
protected static void CreateHeader(NPOI.SS.UserModel.ISheet excelSheet, HSSFWorkbook excelWorkbook)
{
int cellIndex = 0;
NPOI.SS.UserModel.IRow row1 = excelSheet.CreateRow(0);
NPOI.SS.UserModel.ICellStyle cellStyle = excelWorkbook.CreateCellStyle();
cellStyle.FillForegroundColor = NPOI.HSSF.Util.HSSFColor.WHITE.index;
//cellStyle.FillPattern = HSSFCellStyle.SQUARES;
cellStyle.FillBackgroundColor = NPOI.HSSF.Util.HSSFColor.BLACK.index;
//循环导出列
foreach (System.Collections.DictionaryEntry de in _listColumnsName)
{
NPOI.SS.UserModel.ICell cell = row1.CreateCell(cellIndex);
cell.CellStyle = cellStyle;
string cellName = de.Value.ToString().Trim();
cell.SetCellValue(cellName);
excelSheet.SetColumnWidth(cellIndex, 15 * 256);
cellIndex++;
}
}
public void TestDoesNoHarmIfNothingToDo()
{
HSSFWorkbook wb = new HSSFWorkbook();
// New files start with 4 built in fonts, and 21 built in styles
Assert.AreEqual(4, wb.NumberOfFonts);
Assert.AreEqual(21, wb.NumCellStyles);
// Create a test font and style, and use them
IFont f = wb.CreateFont();
f.FontName = ("Testing");
NPOI.SS.UserModel.ICellStyle s = wb.CreateCellStyle();
s.SetFont(f);
HSSFSheet sheet = (HSSFSheet)wb.CreateSheet();
HSSFRow row = (HSSFRow)sheet.CreateRow(0);
row.CreateCell(0).CellStyle = (s);
// Should have one more than the default of each
Assert.AreEqual(5, wb.NumberOfFonts);
Assert.AreEqual(22, wb.NumCellStyles);
// Optimise fonts
HSSFOptimiser.OptimiseFonts(wb);
Assert.AreEqual(5, wb.NumberOfFonts);
Assert.AreEqual(22, wb.NumCellStyles);
Assert.AreEqual(f, s.GetFont(wb));
// Optimise styles
HSSFOptimiser.OptimiseCellStyles(wb);
Assert.AreEqual(5, wb.NumberOfFonts);
Assert.AreEqual(22, wb.NumCellStyles);
Assert.AreEqual(f, s.GetFont(wb));
}
/// <summary>
/// Sets the format properties of the given style based on the given map.
/// </summary>
/// <param name="style">The cell style</param>
/// <param name="workbook">The parent workbook.</param>
/// <param name="properties">The map of format properties (String -> Object).</param>
private static void SetFormatProperties(
NPOI.SS.UserModel.ICellStyle style, HSSFWorkbook workbook, Hashtable properties)
{
style.Alignment = (NPOI.SS.UserModel.HorizontalAlignment)GetShort(properties, ALIGNMENT);
style.BorderBottom = (NPOI.SS.UserModel.BorderStyle)GetShort(properties, BORDER_BOTTOM);
style.BorderLeft = (NPOI.SS.UserModel.BorderStyle)GetShort(properties, BORDER_LEFT);
style.BorderRight = (NPOI.SS.UserModel.BorderStyle)GetShort(properties, BORDER_RIGHT);
style.BorderTop = (NPOI.SS.UserModel.BorderStyle)GetShort(properties, BORDER_TOP);
style.BottomBorderColor = (GetShort(properties, BOTTOM_BORDER_COLOR));
style.DataFormat = (GetShort(properties, DATA_FORMAT));
style.FillBackgroundColor = (GetShort(properties, FILL_BACKGROUND_COLOR));
style.FillForegroundColor = (GetShort(properties, FILL_FOREGROUND_COLOR));
style.FillPattern = (NPOI.SS.UserModel.FillPattern)GetShort(properties, FILL_PATTERN);
style.SetFont(workbook.GetFontAt(GetShort(properties, FONT)));
style.IsHidden = (GetBoolean(properties, HIDDEN));
style.Indention = (GetShort(properties, INDENTION));
style.LeftBorderColor = (GetShort(properties, LEFT_BORDER_COLOR));
style.IsLocked = (GetBoolean(properties, LOCKED));
style.RightBorderColor = (GetShort(properties, RIGHT_BORDER_COLOR));
style.Rotation = (GetShort(properties, ROTATION));
style.TopBorderColor = (GetShort(properties, TOP_BORDER_COLOR));
style.VerticalAlignment = (NPOI.SS.UserModel.VerticalAlignment)GetShort(properties, VERTICAL_ALIGNMENT);
style.WrapText = (GetBoolean(properties, WRAP_TEXT));
}
/// <summary>
/// NPOI 宴会统计导出
/// </summary>
/// <param name="id"></param>
/// <param name="ids"></param>
public void Export(string id, string ids)
{
Response.Clear();
Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
NPOI.XSSF.UserModel.XSSFWorkbook workbook = new NPOI.XSSF.UserModel.XSSFWorkbook();
NPOI.SS.UserModel.ISheet sheet1 = workbook.CreateSheet("宴会统计");
//excel格式化
NPOI.SS.UserModel.ICellStyle dateStyle = workbook.CreateCellStyle();
dateStyle.DataFormat = workbook.CreateDataFormat().GetFormat("yyyy/m/d h:mm:ss");
NPOI.SS.UserModel.ICellStyle numberStyle = workbook.CreateCellStyle();
numberStyle.DataFormat = workbook.CreateDataFormat().GetFormat("0.00000");
NPOI.SS.UserModel.ICellStyle textStyle = workbook.CreateCellStyle();
textStyle.DataFormat = workbook.CreateDataFormat().GetFormat("@");
//设置单元格宽度
NPOI.SS.UserModel.ISheet sheet = workbook.CreateSheet();
//给sheet1添加第一行的头部标题
NPOI.SS.UserModel.IRow row1 = sheet1.CreateRow(0);
row1.CreateCell(0).SetCellValue("姓名");
row1.CreateCell(1).SetCellValue("电话号码");
row1.CreateCell(2).SetCellValue("签到号");
row1.CreateCell(3).SetCellValue("红包");
row1.CreateCell(4).SetCellValue("礼物");
row1.CreateCell(5).SetCellValue("实际人数");
row1.CreateCell(6).SetCellValue("预计人数");
//设置列宽
row1.Sheet.SetColumnWidth(0, 80 * 50);
row1.Sheet.SetColumnWidth(1, 80 * 50);
row1.Sheet.SetColumnWidth(2, 50 * 50);
row1.Sheet.SetColumnWidth(3, 80 * 50);
row1.Sheet.SetColumnWidth(4, 150 * 50);
row1.Sheet.SetColumnWidth(5, 80 * 50);
row1.Sheet.SetColumnWidth(6, 80 * 50);
MessasgeData mgdata = new MessasgeData();
SqlParameter[] pms =
{
new SqlParameter("@meeting", id),
new SqlParameter("@ms", ids)
};
mgdata = Datafun.MgfunctionData("select MeetingName from tb_Meeting where id=@meeting", pms);
if (mgdata.Mgdatacount > 0)
{
Response.AddHeader("Content-Disposition", string.Format("attachment;filename={0}", "" + mgdata.Mgdata.Rows[0][0].ToString() + ".xlsx"));//添加Excel名字
}
else
{
Response.AddHeader("Content-Disposition", string.Format("attachment;filename={0}", "宴会统计.xlsx"));//添加Excel名字
}
mgdata = Datafun.MgfunctionData("Tj_rstj_poc", pms, "poc");
for (int i = 0; i < mgdata.Mgdata.Rows.Count; i++)
{
NPOI.SS.UserModel.IRow rowtemp = sheet1.CreateRow(i + 1);
rowtemp.CreateCell(0).SetCellValue(mgdata.Mgdata.Rows[i][0].ToString());
rowtemp.CreateCell(1).SetCellValue(mgdata.Mgdata.Rows[i][1].ToString());
rowtemp.CreateCell(2).SetCellValue(mgdata.Mgdata.Rows[i][2].ToString());
rowtemp.CreateCell(3).SetCellValue(mgdata.Mgdata.Rows[i][3].ToString());
rowtemp.CreateCell(4).SetCellValue(mgdata.Mgdata.Rows[i][4].ToString());
rowtemp.CreateCell(5).SetCellValue(mgdata.Mgdata.Rows[i][5].ToString());
rowtemp.CreateCell(6).SetCellValue(mgdata.Mgdata.Rows[i][6].ToString());
rowtemp.GetCell(0).CellStyle = textStyle;
rowtemp.GetCell(1).CellStyle = textStyle;
rowtemp.GetCell(2).CellStyle = textStyle;
rowtemp.GetCell(3).CellStyle = numberStyle;
rowtemp.GetCell(4).CellStyle = textStyle;
rowtemp.GetCell(5).CellStyle = textStyle;
rowtemp.GetCell(6).CellStyle = numberStyle;
}
//写入到客户端
System.IO.MemoryStream ms = new System.IO.MemoryStream();
workbook.Write(ms);
Response.BinaryWrite(ms.ToArray());
Response.Flush();
Response.End();
}
/// <summary>
/// NPOI 导出会议的管理人员
/// </summary>
/// <param name="id"></param>
/// <param name="ids"></param>
public void ExportMeeting()
{
Response.Clear();
Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
NPOI.XSSF.UserModel.XSSFWorkbook workbook = new NPOI.XSSF.UserModel.XSSFWorkbook();
NPOI.SS.UserModel.ISheet sheet1 = workbook.CreateSheet("宴会统计");
//excel格式化
NPOI.SS.UserModel.ICellStyle dateStyle = workbook.CreateCellStyle();
dateStyle.DataFormat = workbook.CreateDataFormat().GetFormat("yyyy/m/d h:mm:ss");
NPOI.SS.UserModel.ICellStyle numberStyle = workbook.CreateCellStyle();
numberStyle.DataFormat = workbook.CreateDataFormat().GetFormat("0.00000");
NPOI.SS.UserModel.ICellStyle textStyle = workbook.CreateCellStyle();
textStyle.DataFormat = workbook.CreateDataFormat().GetFormat("@");
//设置单元格宽度
NPOI.SS.UserModel.ISheet sheet = workbook.CreateSheet();
//给sheet1添加第一行的头部标题
NPOI.SS.UserModel.IRow row1 = sheet1.CreateRow(0);
row1.CreateCell(0).SetCellValue("姓名");
row1.CreateCell(1).SetCellValue("电话号码");
row1.CreateCell(2).SetCellValue("会议名称");
row1.CreateCell(3).SetCellValue("开始时间");
row1.CreateCell(4).SetCellValue("结束时间");
//设置列宽
row1.Sheet.SetColumnWidth(0, 100 * 50);
row1.Sheet.SetColumnWidth(1, 100 * 50);
row1.Sheet.SetColumnWidth(2, 150 * 50);
row1.Sheet.SetColumnWidth(3, 100 * 50);
row1.Sheet.SetColumnWidth(4, 100 * 50);
MessasgeData mgdata = new MessasgeData();
mgdata = Datafun.MgfunctionData("select Bank,UserName,b.MeetingName,convert(nvarchar(11),Start_Date,120) ,convert(nvarchar(11),End_Date,120) from tb_login a left join tb_Meeting b on a.Meeting=b.id where Lvl=1 and a.isdel=1 ");
Response.AddHeader("Content-Disposition", string.Format("attachment;filename={0}", "会议管理人员.xlsx")); //添加Excel名字
for (int i = 0; i < mgdata.Mgdata.Rows.Count; i++)
{
NPOI.SS.UserModel.IRow rowtemp = sheet1.CreateRow(i + 1);
rowtemp.CreateCell(0).SetCellValue(mgdata.Mgdata.Rows[i][0].ToString());
rowtemp.CreateCell(1).SetCellValue(mgdata.Mgdata.Rows[i][1].ToString());
rowtemp.CreateCell(2).SetCellValue(mgdata.Mgdata.Rows[i][2].ToString());
rowtemp.CreateCell(3).SetCellValue(mgdata.Mgdata.Rows[i][3].ToString());
rowtemp.CreateCell(4).SetCellValue(mgdata.Mgdata.Rows[i][4].ToString());
rowtemp.GetCell(0).CellStyle = textStyle;
rowtemp.GetCell(1).CellStyle = textStyle;
rowtemp.GetCell(2).CellStyle = textStyle;
rowtemp.GetCell(3).CellStyle = numberStyle;
rowtemp.GetCell(4).CellStyle = textStyle;
}
//写入到客户端
System.IO.MemoryStream ms = new System.IO.MemoryStream();
workbook.Write(ms);
Response.BinaryWrite(ms.ToArray());
Response.Flush();
Response.End();
}
/// <summary>
/// 导出数据行
/// </summary>
/// <param name="dtSource"></param>
/// <param name="drSource"></param>
/// <param name="currentExcelRow"></param>
/// <param name="excelSheet"></param>
/// <param name="excelWorkBook"></param>
protected static void InsertCell(DataTable dtSource, DataRow drSource, NPOI.SS.UserModel.IRow currentExcelRow, NPOI.SS.UserModel.ISheet excelSheet, HSSFWorkbook excelWorkBook, NPOI.SS.UserModel.ICellStyle cellStyle_DateTime)
{
for (int cellIndex = 0; cellIndex < _listColumnsName.Count; cellIndex++)
{
//列名称
string columnsName = _listColumnsName.GetKey(cellIndex).ToString();
NPOI.SS.UserModel.ICell newCell = null;
System.Type rowType = drSource[columnsName].GetType();
string drValue = drSource[columnsName].ToString().Trim();
switch (rowType.ToString())
{
case "System.String": //字符串类型
drValue = drValue.Replace("&", "&");
drValue = drValue.Replace(">", ">");
drValue = drValue.Replace("<", "<");
newCell = currentExcelRow.CreateCell(cellIndex);
newCell.SetCellValue(drValue);
break;
case "System.DateTime": //日期类型
DateTime dateV;
DateTime.TryParse(drValue, out dateV);
newCell = currentExcelRow.CreateCell(cellIndex);
newCell.SetCellValue(dateV);
//格式化显示
newCell.CellStyle = cellStyle_DateTime;
break;
case "System.Boolean": //布尔型
bool boolV = false;
bool.TryParse(drValue, out boolV);
newCell = currentExcelRow.CreateCell(cellIndex);
newCell.SetCellValue(boolV);
break;
case "System.Int16": //整型
case "System.Int32":
case "System.Int64":
case "System.Byte":
int intV = 0;
int.TryParse(drValue, out intV);
newCell = currentExcelRow.CreateCell(cellIndex);
newCell.SetCellValue(intV.ToString());
break;
case "System.Decimal": //浮点型
case "System.Double":
double doubV = 0;
double.TryParse(drValue, out doubV);
newCell = currentExcelRow.CreateCell(cellIndex);
newCell.SetCellValue(doubV);
break;
case "System.DBNull": //空值处理
newCell = currentExcelRow.CreateCell(cellIndex);
newCell.SetCellValue("");
break;
case "System.Guid": //空值处理
newCell = currentExcelRow.CreateCell(cellIndex);
newCell.SetCellValue(drValue);
break;
default:
throw (new Exception(rowType.ToString() + "：类型数据无法处理!"));
}
}
}
/// <summary>
/// Goes through the Wokrbook, optimising the cell styles
/// by removing duplicate ones.
/// For best results, optimise the fonts via a call to
/// OptimiseFonts(HSSFWorkbook) first
/// </summary>
/// <param name="workbook">The workbook in which to optimise the cell styles</param>
public static void OptimiseCellStyles(HSSFWorkbook workbook)
{
// Where each style has ended up, and if we need to
// delete the record for it. Start off with no change
short[] newPos =
new short[workbook.Workbook.NumExFormats];
bool[] zapRecords = new bool[newPos.Length];
for (int i = 0; i < newPos.Length; i++)
{
newPos[i] = (short)i;
zapRecords[i] = false;
}
// Get each style record, so we can do deletes
// without Getting confused
ExtendedFormatRecord[] xfrs = new ExtendedFormatRecord[newPos.Length];
for (int i = 0; i < newPos.Length; i++)
{
xfrs[i] = workbook.Workbook.GetExFormatAt(i);
}
// Loop over each style, seeing if it is the same
// as an earlier one. If it is, point users of the
// later duplicate copy to the earlier one, and
// mark the later one as needing deleting
// Only work on user added ones, which come after 20
for (int i = 21; i < newPos.Length; i++)
{
// Check this one for being a duplicate
// of an earlier one
int earlierDuplicate = -1;
for (int j = 0; j < i && earlierDuplicate == -1; j++)
{
ExtendedFormatRecord xfCheck = workbook.Workbook.GetExFormatAt(j);
if (xfCheck.Equals(xfrs[i]))
{
earlierDuplicate = j;
}
}
// If we got a duplicate, mark it as such
if (earlierDuplicate != -1)
{
newPos[i] = (short)earlierDuplicate;
zapRecords[i] = true;
}
}
// Update the new positions based on
// deletes that have occurred between
// the start and them
// Only work on user added ones, which come after 20
for (int i = 21; i < newPos.Length; i++)
{
// Find the number deleted to that
// point, and adjust
short preDeletePos = newPos[i];
short newPosition = preDeletePos;
for (int j = 0; j < preDeletePos; j++)
{
if (zapRecords[j])
{
newPosition--;
}
}
// Update the new position
newPos[i] = newPosition;
}
// Zap the un-needed user style records
for (int i = 21; i < newPos.Length; i++)
{
if (zapRecords[i])
{
workbook.Workbook.RemoveExFormatRecord(
xfrs[i]
);
}
}
// Finally, update the cells to point at
// their new extended format records
for (int sheetNum = 0; sheetNum < workbook.NumberOfSheets; sheetNum++)
{
HSSFSheet s = (HSSFSheet)workbook.GetSheetAt(sheetNum);
IEnumerator rIt = s.GetRowEnumerator();
while (rIt.MoveNext())
{
HSSFRow row = (HSSFRow)rIt.Current;
IEnumerator cIt = row.GetEnumerator();
while (cIt.MoveNext())
{
ICell cell = (HSSFCell)cIt.Current;
short oldXf = ((HSSFCell)cell).CellValueRecord.XFIndex;
NPOI.SS.UserModel.ICellStyle newStyle = workbook.GetCellStyleAt(
newPos[oldXf]
);
cell.CellStyle = (newStyle);
}
}
}
}
/// <summary>
/// DataTable导出到Excel的MemoryStream xlsx
/// </summary>
/// <param name="dtSource">源DataTable</param>
/// <param name="strHeaderText">表头文本</param>
/// <param name="strFileName">文件名</param>
public static MemoryStream ExportXlsx(IEnumerable <DataTable> dataTables, string strHeaderText, string passaord = null)
{
XSSFWorkbook workbook = new XSSFWorkbook();
int i = 0;
NPOI.SS.UserModel.ICellStyle dateStyle = workbook.CreateCellStyle();
NPOI.SS.UserModel.IDataFormat format = workbook.CreateDataFormat();
dateStyle.DataFormat = format.GetFormat("yyyy-mm-dd");
#region 右击文件 属性信息
{
// DocumentSummaryInformation dsi = PropertySetFactory.CreateDocumentSummaryInformation();
// dsi.Company = "NPOI";
// SummaryInformation si = PropertySetFactory.CreateSummaryInformation();
// si.Author = "文件作者信息"; //填加xlsx文件作者信息
// si.ApplicationName = "创建程序信息"; //填加xlsx文件创建程序信息
// si.LastAuthor = "最后保存者信息"; //填加xls文件最后保存者信息
// si.Comments = "作者信息"; //填加xls文件作者信息
// si.Title = "标题信息"; //填加xls文件标题信息
// si.Subject = "主题信息";//填加文件主题信息
// si.CreateDateTime = DateTime.Now;
// workbook.GetProperties().CustomProperties.AddProperty("Company", "NPOI");
// if (!workbook.GetProperties().CustomProperties.Contains("Company"))
// workbook.GetProperties().CustomProperties.AddProperty("Company", dsi.Company);
}
#endregion
foreach (DataTable dt in dataTables)
{
string sheetName = string.IsNullOrEmpty(dt.TableName)
? "Sheet " + (++i).ToString()
: dt.TableName;
ISheet sheet = workbook.CreateSheet(sheetName);
if (string.IsNullOrEmpty(passaord) == false)
{
sheet.ProtectSheet(passaord);
}
int rowIndex = 0;
#region 表头及样式
{
if (string.IsNullOrEmpty(strHeaderText) == false)
{
NPOI.SS.UserModel.IRow headerRow = sheet.CreateRow(rowIndex);
headerRow.HeightInPoints = 25;
headerRow.CreateCell(0).SetCellValue(strHeaderText);
NPOI.SS.UserModel.ICellStyle headStyle = workbook.CreateCellStyle();
headStyle.Alignment = NPOI.SS.UserModel.HorizontalAlignment.Center;
NPOI.SS.UserModel.IFont font = workbook.CreateFont();
font.FontHeightInPoints = 20;
font.Boldweight = 700;
headStyle.SetFont(font);
headerRow.GetCell(0).CellStyle = headStyle;
sheet.AddMergedRegion(new NPOI.SS.Util.CellRangeAddress(0, 0, 0, dt.Columns.Count - 1));
rowIndex += 1;
}
//headerRow.Dispose();
}
#endregion
#region 列头及样式
{
//取得列宽
int[] arrColWidth = new int[dt.Columns.Count];
foreach (DataColumn item in dt.Columns)
{
arrColWidth[item.Ordinal] = Encoding.GetEncoding(936).GetBytes(item.ColumnName.ToString()).Length;
}
for (int k = 0; k < dt.Rows.Count; k++)
{
for (int j = 0; j < dt.Columns.Count; j++)
{
int intTemp = Encoding.GetEncoding(936).GetBytes(dt.Rows[k][j].ToString()).Length;
if (intTemp > arrColWidth[j])
{
arrColWidth[j] = intTemp;
}
}
}
NPOI.SS.UserModel.IRow headerRow = sheet.CreateRow(rowIndex);
NPOI.SS.UserModel.ICellStyle headStyle = workbook.CreateCellStyle();
headStyle.Alignment = NPOI.SS.UserModel.HorizontalAlignment.Center;
NPOI.SS.UserModel.IFont font = workbook.CreateFont();
font.FontHeightInPoints = 10;
font.Boldweight = 700;
headStyle.SetFont(font);
foreach (DataColumn column in dt.Columns)
{
headerRow.CreateCell(column.Ordinal).SetCellValue(column.ColumnName);
headerRow.GetCell(column.Ordinal).CellStyle = headStyle;
//设置列宽
sheet.SetColumnWidth(column.Ordinal, (arrColWidth[column.Ordinal] + 1) * 256);
}
//headerRow.Dispose();
rowIndex += 1;
}
#endregion
//#region 表头
//for (int j = 0; j < dt.Columns.Count; j++)
//{
// string columnName = string.IsNullOrEmpty(dt.Columns[j].ColumnName)
// ? "Column " + j.ToString()
// : dt.Columns[j].ColumnName;
// headerRow.CreateCell(j).SetCellValue(columnName);
//}
//#endregion
#region 内容
for (int a = 0; a < dt.Rows.Count; a++)
{
DataRow dr = dt.Rows[a];
IRow row = sheet.CreateRow(a + rowIndex);
for (int b = 0; b < dt.Columns.Count; b++)
{
row.CreateCell(b).SetCellValue(dr[b] != DBNull.Value ? dr[b].ToString() : string.Empty);
DataColumn dc = dt.Columns[b];
NPOI.SS.UserModel.ICell newCell = row.CreateCell(dc.Ordinal);
string drValue = dr[b].ToString();
switch (dc.DataType.ToString())
{
case "System.String": //字符串类型
newCell.SetCellValue(drValue);
break;
case "System.DateTime": //日期类型
DateTime dateV;
DateTime.TryParse(drValue, out dateV);
newCell.SetCellValue(dateV);
newCell.CellStyle = dateStyle; //格式化显示
break;
case "System.Boolean": //布尔型
bool boolV = false;
bool.TryParse(drValue, out boolV);
newCell.SetCellValue(boolV);
break;
case "System.Int16": //整型
case "System.Int32":
case "System.Int64":
case "System.Byte":
int intV = 0;
int.TryParse(drValue, out intV);
newCell.SetCellValue(intV);
break;
case "System.Decimal": //浮点型
case "System.Double":
double doubV = 0;
double.TryParse(drValue, out doubV);
newCell.SetCellValue(doubV);
break;
case "System.DBNull": //空值处理
newCell.SetCellValue("");
break;
default:
newCell.SetCellValue("");
break;
}
}
}
#endregion
}
using (MemoryStream ms = new MemoryStream())
{
workbook.Write(ms);
ms.Flush();
// ms.Position = 0;
// sheet.Dispose();
//workbook.Dispose();//一般只用写这一个就OK了，他会遍历并释放所有资源，但当前版本有问题所以只释放sheet
return(ms);
}
}
/// <summary>
/// DataTable导出到Excel的MemoryStream
/// </summary>
/// <param name="dtSource">源DataTable</param>
/// <param name="strHeaderText">表头文本</param>
public static MemoryStream Export(DataTable dtSource, string strHeaderText, string passaord = null)
{
HSSFWorkbook workbook = new HSSFWorkbook();
NPOI.SS.UserModel.ISheet sheet = workbook.CreateSheet();
if (string.IsNullOrEmpty(passaord) == false)
{
sheet.ProtectSheet(passaord);
}
#region 右击文件 属性信息
{
DocumentSummaryInformation dsi = PropertySetFactory.CreateDocumentSummaryInformation();
dsi.Company = "NPOI";
workbook.DocumentSummaryInformation = dsi;
SummaryInformation si = PropertySetFactory.CreateSummaryInformation();
si.Author = "文件作者信息"; //填加xls文件作者信息
si.ApplicationName = "创建程序信息"; //填加xls文件创建程序信息
si.LastAuthor = "最后保存者信息"; //填加xls文件最后保存者信息
si.Comments = "作者信息"; //填加xls文件作者信息
si.Title = "标题信息"; //填加xls文件标题信息
si.Subject = "主题信息"; //填加文件主题信息
si.CreateDateTime = DateTime.Now;
workbook.SummaryInformation = si;
}
#endregion
NPOI.SS.UserModel.ICellStyle dateStyle = workbook.CreateCellStyle();
NPOI.SS.UserModel.IDataFormat format = workbook.CreateDataFormat();
dateStyle.DataFormat = format.GetFormat("yyyy-mm-dd");
//取得列宽
int[] arrColWidth = new int[dtSource.Columns.Count];
foreach (DataColumn item in dtSource.Columns)
{
arrColWidth[item.Ordinal] = Encoding.GetEncoding(936).GetBytes(item.ColumnName.ToString()).Length;
}
for (int i = 0; i < dtSource.Rows.Count; i++)
{
for (int j = 0; j < dtSource.Columns.Count; j++)
{
int intTemp = Encoding.GetEncoding(936).GetBytes(dtSource.Rows[i][j].ToString()).Length;
if (intTemp > arrColWidth[j])
{
arrColWidth[j] = intTemp;
}
}
}
int rowIndex = 0;
foreach (DataRow row in dtSource.Rows)
{
#region 新建表，填充表头，填充列头，样式
if (rowIndex == 65535 || rowIndex == 0)
{
if (rowIndex != 0)
{
sheet = workbook.CreateSheet();
if (string.IsNullOrEmpty(passaord) == false)
{
sheet.ProtectSheet(passaord);
}
}
#region 表头及样式
{
if (string.IsNullOrEmpty(strHeaderText) == false)
{
NPOI.SS.UserModel.IRow headerRow = sheet.CreateRow(0);
headerRow.HeightInPoints = 25;
headerRow.CreateCell(0).SetCellValue(strHeaderText);
NPOI.SS.UserModel.ICellStyle headStyle = workbook.CreateCellStyle();
headStyle.Alignment = NPOI.SS.UserModel.HorizontalAlignment.Center;
NPOI.SS.UserModel.IFont font = workbook.CreateFont();
font.FontHeightInPoints = 20;
font.Boldweight = 700;
headStyle.SetFont(font);
headerRow.GetCell(0).CellStyle = headStyle;
sheet.AddMergedRegion(new NPOI.SS.Util.CellRangeAddress(0, 0, 0, dtSource.Columns.Count - 1));
rowIndex += 1;
}
//headerRow.Dispose();
}
#endregion
#region 列头及样式
{
NPOI.SS.UserModel.IRow headerRow = sheet.CreateRow(rowIndex);
NPOI.SS.UserModel.ICellStyle headStyle = workbook.CreateCellStyle();
headStyle.Alignment = NPOI.SS.UserModel.HorizontalAlignment.Center;
NPOI.SS.UserModel.IFont font = workbook.CreateFont();
font.FontHeightInPoints = 10;
font.Boldweight = 700;
headStyle.SetFont(font);
foreach (DataColumn column in dtSource.Columns)
{
headerRow.CreateCell(column.Ordinal).SetCellValue(column.ColumnName);
headerRow.GetCell(column.Ordinal).CellStyle = headStyle;
//设置列宽
sheet.SetColumnWidth(column.Ordinal, (arrColWidth[column.Ordinal] + 1) * 256);
}
//headerRow.Dispose();
rowIndex += 1;
}
#endregion
}
#endregion
#region 填充内容
NPOI.SS.UserModel.IRow dataRow = sheet.CreateRow(rowIndex);
foreach (DataColumn column in dtSource.Columns)
{
NPOI.SS.UserModel.ICell newCell = dataRow.CreateCell(column.Ordinal);
string drValue = row[column].ToString();
switch (column.DataType.ToString())
{
case "System.String": //字符串类型
newCell.SetCellValue(drValue);
break;
case "System.DateTime": //日期类型
DateTime dateV;
DateTime.TryParse(drValue, out dateV);
newCell.SetCellValue(dateV);
newCell.CellStyle = dateStyle; //格式化显示
break;
case "System.Boolean": //布尔型
bool boolV = false;
bool.TryParse(drValue, out boolV);
newCell.SetCellValue(boolV);
break;
case "System.Int16": //整型
case "System.Int32":
case "System.Int64":
case "System.Byte":
int intV = 0;
int.TryParse(drValue, out intV);
newCell.SetCellValue(intV);
break;
case "System.Decimal": //浮点型
case "System.Double":
double doubV = 0;
double.TryParse(drValue, out doubV);
newCell.SetCellValue(doubV);
break;
case "System.DBNull": //空值处理
newCell.SetCellValue("");
break;
default:
newCell.SetCellValue("");
break;
}
}
#endregion
rowIndex++;
}
using (MemoryStream ms = new MemoryStream())
{
workbook.Write(ms);
ms.Flush();
ms.Position = 0;
// sheet.Dispose();
//workbook.Dispose();//一般只用写这一个就OK了，他会遍历并释放所有资源，但当前版本有问题所以只释放sheet
return(ms);
}
}
public void TestOptimiseStyles()
{
HSSFWorkbook wb = new HSSFWorkbook();
// Two fonts
Assert.AreEqual(4, wb.NumberOfFonts);
IFont f1 = wb.CreateFont();
f1.FontHeight = ((short)11);
f1.FontName = ("Testing");
IFont f2 = wb.CreateFont();
f2.FontHeight = ((short)22);
f2.FontName = ("Also Testing");
Assert.AreEqual(6, wb.NumberOfFonts);
// Several styles
Assert.AreEqual(21, wb.NumCellStyles);
NPOI.SS.UserModel.ICellStyle cs1 = wb.CreateCellStyle();
cs1.SetFont(f1);
NPOI.SS.UserModel.ICellStyle cs2 = wb.CreateCellStyle();
cs2.SetFont(f2);
NPOI.SS.UserModel.ICellStyle cs3 = wb.CreateCellStyle();
cs3.SetFont(f1);
NPOI.SS.UserModel.ICellStyle cs4 = wb.CreateCellStyle();
cs4.SetFont(f1);
cs4.Alignment = HorizontalAlignment.CenterSelection;// ((short)22);
NPOI.SS.UserModel.ICellStyle cs5 = wb.CreateCellStyle();
cs5.SetFont(f2);
cs5.Alignment = HorizontalAlignment.Fill; //((short)111);
NPOI.SS.UserModel.ICellStyle cs6 = wb.CreateCellStyle();
cs6.SetFont(f2);
Assert.AreEqual(27, wb.NumCellStyles);
// Use them
NPOI.SS.UserModel.ISheet s = wb.CreateSheet();
IRow r = s.CreateRow(0);
r.CreateCell(0).CellStyle = (cs1);
r.CreateCell(1).CellStyle = (cs2);
r.CreateCell(2).CellStyle = (cs3);
r.CreateCell(3).CellStyle = (cs4);
r.CreateCell(4).CellStyle = (cs5);
r.CreateCell(5).CellStyle = (cs6);
r.CreateCell(6).CellStyle = (cs1);
r.CreateCell(7).CellStyle = (cs2);
Assert.AreEqual(21, ((HSSFCell)r.GetCell(0)).CellValueRecord.XFIndex);
Assert.AreEqual(26, ((HSSFCell)r.GetCell(5)).CellValueRecord.XFIndex);
Assert.AreEqual(21, ((HSSFCell)r.GetCell(6)).CellValueRecord.XFIndex);
// Optimise
HSSFOptimiser.OptimiseCellStyles(wb);
// Check
Assert.AreEqual(6, wb.NumberOfFonts);
Assert.AreEqual(25, wb.NumCellStyles);
// cs1 -> 21
Assert.AreEqual(21, ((HSSFCell)r.GetCell(0)).CellValueRecord.XFIndex);
// cs2 -> 22
Assert.AreEqual(22, ((HSSFCell)r.GetCell(1)).CellValueRecord.XFIndex);
Assert.AreEqual(22, r.GetCell(1).CellStyle.GetFont(wb).FontHeight);
// cs3 = cs1 -> 21
Assert.AreEqual(21, ((HSSFCell)r.GetCell(2)).CellValueRecord.XFIndex);
// cs4 --> 24 -> 23
Assert.AreEqual(23, ((HSSFCell)r.GetCell(3)).CellValueRecord.XFIndex);
// cs5 --> 25 -> 24
Assert.AreEqual(24, ((HSSFCell)r.GetCell(4)).CellValueRecord.XFIndex);
// cs6 = cs2 -> 22
Assert.AreEqual(22, ((HSSFCell)r.GetCell(5)).CellValueRecord.XFIndex);
// cs1 -> 21
Assert.AreEqual(21, ((HSSFCell)r.GetCell(6)).CellValueRecord.XFIndex);
// cs2 -> 22
Assert.AreEqual(22, ((HSSFCell)r.GetCell(7)).CellValueRecord.XFIndex);
// Add a new duplicate, and two that aren't used
HSSFCellStyle csD = (HSSFCellStyle)wb.CreateCellStyle();
csD.SetFont(f1);
r.CreateCell(8).CellStyle = (csD);
HSSFFont f3 = (HSSFFont)wb.CreateFont();
f3.FontHeight = ((short)23);
f3.FontName = ("Testing 3");
HSSFFont f4 = (HSSFFont)wb.CreateFont();
f4.FontHeight = ((short)24);
f4.FontName = ("Testing 4");
HSSFCellStyle csU1 = (HSSFCellStyle)wb.CreateCellStyle();
csU1.SetFont(f3);
HSSFCellStyle csU2 = (HSSFCellStyle)wb.CreateCellStyle();
csU2.SetFont(f4);
// Check before the optimise
Assert.AreEqual(8, wb.NumberOfFonts);
Assert.AreEqual(28, wb.NumCellStyles);
// Optimise, should remove the two un-used ones and the one duplicate
HSSFOptimiser.OptimiseCellStyles(wb);
// Check
Assert.AreEqual(8, wb.NumberOfFonts);
Assert.AreEqual(25, wb.NumCellStyles);
// csD -> cs1 -> 21
Assert.AreEqual(21, ((HSSFCell)r.GetCell(8)).CellValueRecord.XFIndex);
}
public void TestOptimiseFonts()
{
HSSFWorkbook wb = new HSSFWorkbook();
// Add 6 fonts, some duplicates
IFont f1 = wb.CreateFont();
f1.FontHeight = ((short)11);
f1.FontName = ("Testing");
IFont f2 = wb.CreateFont();
f2.FontHeight = ((short)22);
f2.FontName = ("Also Testing");
IFont f3 = wb.CreateFont();
f3.FontHeight = ((short)33);
f3.FontName = ("Unique");
IFont f4 = wb.CreateFont();
f4.FontHeight = ((short)11);
f4.FontName = ("Testing");
IFont f5 = wb.CreateFont();
f5.FontHeight = ((short)22);
f5.FontName = ("Also Testing");
IFont f6 = wb.CreateFont();
f6.FontHeight = ((short)66);
f6.FontName = ("Also Unique");
// Use all three of the four in cell styles
Assert.AreEqual(21, wb.NumCellStyles);
NPOI.SS.UserModel.ICellStyle cs1 = wb.CreateCellStyle();
cs1.SetFont(f1);
Assert.AreEqual(5, cs1.FontIndex);
NPOI.SS.UserModel.ICellStyle cs2 = wb.CreateCellStyle();
cs2.SetFont(f4);
Assert.AreEqual(8, cs2.FontIndex);
NPOI.SS.UserModel.ICellStyle cs3 = wb.CreateCellStyle();
cs3.SetFont(f5);
Assert.AreEqual(9, cs3.FontIndex);
NPOI.SS.UserModel.ICellStyle cs4 = wb.CreateCellStyle();
cs4.SetFont(f6);
Assert.AreEqual(10, cs4.FontIndex);
Assert.AreEqual(25, wb.NumCellStyles);
// And three in rich text
NPOI.SS.UserModel.ISheet s = wb.CreateSheet();
IRow r = s.CreateRow(0);
HSSFRichTextString rtr1 = new HSSFRichTextString("Test");
rtr1.ApplyFont(0, 2, f1);
rtr1.ApplyFont(3, 4, f2);
r.CreateCell(0).SetCellValue(rtr1);
HSSFRichTextString rtr2 = new HSSFRichTextString("AlsoTest");
rtr2.ApplyFont(0, 2, f3);
rtr2.ApplyFont(3, 5, f5);
rtr2.ApplyFont(6, 8, f6);
r.CreateCell(1).SetCellValue(rtr2);
// Check what we have now
Assert.AreEqual(10, wb.NumberOfFonts);
Assert.AreEqual(25, wb.NumCellStyles);
// Optimise
HSSFOptimiser.OptimiseFonts(wb);
// Check font count
Assert.AreEqual(8, wb.NumberOfFonts);
Assert.AreEqual(25, wb.NumCellStyles);
// Check font use in cell styles
Assert.AreEqual(5, cs1.FontIndex);
Assert.AreEqual(5, cs2.FontIndex); // duplicate of 1
Assert.AreEqual(6, cs3.FontIndex); // duplicate of 2
Assert.AreEqual(8, cs4.FontIndex); // two have gone
// And in rich text
// RTR 1 had f1 and f2, unchanged
Assert.AreEqual(5, (r.GetCell(0).RichStringCellValue as HSSFRichTextString).GetFontAtIndex(0));
Assert.AreEqual(5, (r.GetCell(0).RichStringCellValue as HSSFRichTextString).GetFontAtIndex(1));
Assert.AreEqual(6, (r.GetCell(0).RichStringCellValue as HSSFRichTextString).GetFontAtIndex(3));
Assert.AreEqual(6, (r.GetCell(0).RichStringCellValue as HSSFRichTextString).GetFontAtIndex(4));
// RTR 2 had f3 (unchanged), f5 (=f2) and f6 (moved down)
Assert.AreEqual(7, (r.GetCell(1).RichStringCellValue as HSSFRichTextString).GetFontAtIndex(0));
Assert.AreEqual(7, (r.GetCell(1).RichStringCellValue as HSSFRichTextString).GetFontAtIndex(1));
Assert.AreEqual(6, (r.GetCell(1).RichStringCellValue as HSSFRichTextString).GetFontAtIndex(3));
Assert.AreEqual(6, (r.GetCell(1).RichStringCellValue as HSSFRichTextString).GetFontAtIndex(4));
Assert.AreEqual(8, (r.GetCell(1).RichStringCellValue as HSSFRichTextString).GetFontAtIndex(6));
Assert.AreEqual(8, (r.GetCell(1).RichStringCellValue as HSSFRichTextString).GetFontAtIndex(7));
}
