/// <summary>
/// 下载excel模板
/// </summary>
/// <param name="fileName">文件名称</param>
/// <param name="heads">表头</param>
/// <param name="contentInfo">导出excel数据源</param>
/// <param name="cellContents"></param>
/// <param name="templteRowCount">模板或者导出excel样式设置行数</param>
/// <param name="cellValidations">验证数据源</param>
/// <returns></returns>
public static NpoiMemoryStream GetFileTemplate(string fileName
, List <HeadInfo> heads
, List <List <ContentInfo> > contentInfo = null
, List <CellContent> cellContents = null
, int templteRowCount = 65535
, params CellValidation[] cellValidations)
{
#region 内容特殊字符过滤 待处理
for (var i = 0; i < cellValidations?.Length; i++)
{
if (cellValidations[i].FirstList == null || !cellValidations[i].FirstList.Any())
{
continue;
}
cellValidations[i].FirstList[0].Key = ReplaceSpecialCharacter(cellValidations[i].FirstList[0].Key);
cellValidations[i].FirstList[0].Value = ReplaceSpecialCharacter(cellValidations[i].FirstList[0].Value);
//foreach (var item in cellValidations[i].FirstList)
//{
// item.Key =ReplaceSpecialCharacter(item.Key);
// item.Value =ReplaceSpecialCharacter(item.Value);
//}
}
#endregion
var workbook = new XSSFWorkbook();
var sheet = workbook.CreateSheet(fileName);
#region set heads
var rowCount = contentInfo?.Count ?? templteRowCount;
var newRow = sheet.CreateRow(0);
for (var i = 0; i < heads.Count; i++)
{
sheet.SetColumnWidth(i, heads[i].ColumnWidth);
var style = GetCellStyle(workbook, heads[i].CellStyle);
var cell = newRow.CreateCell(i);
cell.CellStyle = style;
cell.SetCellValue(heads[i].Name);
for (var j = 1; j <= rowCount; j++)
{
var row = sheet.GetRow(j) ?? sheet.CreateRow(j);
cell = row.CreateCell(i);
cell.CellStyle = style;
}
}
#endregion
#region 初始化导出excel数据源
for (var i = 0; i < contentInfo?.Count; i++)
{
var contentRow = sheet.CreateRow(i + 1);
for (var j = 0; j < contentInfo[i]?.Count; j++)
{
var contentCell = contentRow.CreateCell(j);
contentCell.SetCellValue(contentInfo[i][j].Name);
}
}
#endregion
#region set datasource
cellValidations?.ToList().ForEach(item =>
{
if (item.FirstList == null)
{
return;
}
var dataSourceSheetName = $"{item.FirstList?[0]?.Value.Replace(" ", "")}";
var dataSourceSheet = workbook.CreateSheet(dataSourceSheetName);//创建sheet
/*
* FirstList
* 1 2 3
* 2
* 3
*/
#region init datasource
for (var i = 0; i < item.FirstList.Count; i++)
{
var row = dataSourceSheet.GetRow(i) ?? dataSourceSheet.CreateRow(i);//添加行
row.CreateCell(0).SetCellValue(i == 0
? item.FirstList[i].Value.Replace(" ", "")
: item.FirstList[i].Value);//单元格写值
if (i <= 0)
{
continue;
}
if (item.SecondList != null && item.SecondList.Any())
{
dataSourceSheet.GetRow(0).CreateCell(i).SetCellValue(item.FirstList[i].Value);//一级列头
var cellDatas = item.SecondList.Where(c => c.Key == item.FirstList[i].Key).ToList();
for (var j = 0; j < cellDatas.Count; j++)
{
var secondRow = dataSourceSheet.GetRow(j + 1) ?? dataSourceSheet.CreateRow(j + 1);
secondRow.CreateCell(i).SetCellValue(cellDatas[j].Value);//单元格写值
}
}
}
#endregion
#region Range
for (var i = 0; i < item.FirstList.Count; i++)
{
if (i == 0)
{
var range = workbook.CreateName();
range.NameName = item.FirstList[i].Value.Replace(" ", "");
range.RefersToFormula = string.Format("{0}!${3}${2}:${3}${1}",
dataSourceSheetName,
item.FirstList.Count,
2,
Index2ColName(i));
}
else
{
if (item.SecondList != null && item.SecondList.Any())
{
var cellDatas = item.SecondList.Where(c => c.Key == item.FirstList[i].Key).ToList();
if (cellDatas.Any())
{
var range = workbook.CreateName();
range.NameName = item.FirstList[i].Value.Replace(" ", "");
range.RefersToFormula = string.Format("{0}!${3}${2}:${3}${1}",
dataSourceSheetName,
cellDatas.Count + 1,
2,
Index2ColName(i));
}
}
}
}
#endregion
});
#endregion
#region set cellContents
cellContents?.ForEach(item =>
{
var writeSheet = workbook.GetSheetAt(item.SheetIndex) ??
workbook.CreateSheet(item.SheetIndex.ToString());
var i = 0;
item.ListOfValues?.ForEach(info =>
{
var writeRow = writeSheet.GetRow(item.FirstRow + i) ?? writeSheet.CreateRow(item.FirstRow + i);
var writeCell = writeRow.GetCell(item.FirstCol) ?? writeRow.CreateCell(item.FirstCol);
writeCell.SetCellValue(info);
i++;
});
});
#endregion
#region 设置验证
cellValidations?.ToList().ForEach(item =>
{
if (item.FirstList != null && item.FirstList.Any())
{
if (item.FirstCellLocation != null)
{
var regions = new CellRangeAddressList(item.FirstCellLocation.FirstRow, item.FirstCellLocation.LastRow, item.FirstCellLocation.FirstCol, item.FirstCellLocation.LastCol); //约束范围：c2到c65535
var helper = new XSSFDataValidationHelper((XSSFSheet)sheet); //获得一个数据验证Helper
var validation =
helper.CreateValidation(
helper.CreateFormulaListConstraint(item.FirstList[0].Value),
regions); //创建约束
validation.CreateErrorBox("错误", "请按右侧下拉箭头选择!");
validation.ShowErrorBox = true; //显示上面提示
sheet.AddValidationData(validation); //添加进去
}
}
else
{
if (item.ListOfValues != null && item.ListOfValues.Any())
{
if (item.FirstCellLocation != null)
{
var regions = new CellRangeAddressList(item.FirstCellLocation.FirstRow, item.FirstCellLocation.LastRow, item.FirstCellLocation.FirstCol, item.FirstCellLocation.LastCol); //约束范围：c2到c65535
var helper = new XSSFDataValidationHelper((XSSFSheet)sheet); //获得一个数据验证Helper
var validation =
helper.CreateValidation(helper.CreateExplicitListConstraint(item.ListOfValues),
regions); //创建约束
validation.CreateErrorBox("错误", "请按右侧下拉箭头选择!");
validation.ShowErrorBox = true; //显示上面提示
sheet.AddValidationData(validation); //添加进去
}
}
}
});
#endregion
#region 设置验证
cellValidations?.ToList().ForEach(item =>
{
if (item.SecondList != null && item.SecondList.Any())
{
if (item.SecondCellLocation != null)
{
var regions = new CellRangeAddressList(item.SecondCellLocation.FirstRow, item.SecondCellLocation.LastRow, item.SecondCellLocation.FirstCol, item.SecondCellLocation.LastCol); //约束范围：c2到c65535
var helper = new XSSFDataValidationHelper((XSSFSheet)sheet); //获得一个数据验证Helper
var validation =
helper.CreateValidation(
helper.CreateFormulaListConstraint($"INDIRECT(${Index2ColName(item.FirstCellLocation.FirstCol)}2)"),
regions); //创建约束
validation.CreateErrorBox("错误", "请按右侧下拉箭头选择!");
validation.ShowErrorBox = true; //显示上面提示=Ture
sheet.AddValidationData(validation); //添加进去
}
else if (item.FirstCellLocation != null)
{
var regions = new CellRangeAddressList(item.FirstCellLocation.FirstRow, item.FirstCellLocation.LastRow, item.FirstCellLocation.FirstCol + 1, item.FirstCellLocation.LastCol + 1); //约束范围：c2到c65535
var helper = new XSSFDataValidationHelper((XSSFSheet)sheet); //获得一个数据验证Helper
var validation =
helper.CreateValidation(
helper.CreateFormulaListConstraint($"INDIRECT(${Index2ColName(item.FirstCellLocation.FirstCol)}2)"),
regions); //创建约束
validation.CreateErrorBox("错误", "请按右侧下拉箭头选择!");
validation.ShowErrorBox = true; //显示上面提示=Ture
sheet.AddValidationData(validation); //添加进去
}
}
});
#endregion
sheet.ForceFormulaRecalculation = true;
var memory = new NpoiMemoryStream {
AllowClose = false
};
workbook.Write(memory);
memory.Flush();
memory.Position = 0; // 指定内存流起始值
return(memory);
}
public static NpoiMemoryStream GetFileTemplate(string fileName
, string[] heads
, params CellValidation[] cellValidations)
{
var workbook = new XSSFWorkbook();
var sheet = workbook.CreateSheet(fileName);
var style = workbook.CreateCellStyle();
style.DataFormat = HSSFDataFormat.GetBuiltinFormat("@");
#region set heads
var newRow = sheet.CreateRow(0);
for (var i = 0; i < heads.Length; i++)
{
var cell = newRow.CreateCell(i);
cell.CellStyle = style;
cell.SetCellValue(heads[i]);
for (int j = 1; j <= 65535; j++)
{
var row = sheet.GetRow(j) ?? sheet.CreateRow(j);
cell = row.CreateCell(i);
cell.CellStyle = style;
}
}
#endregion
#region set datasource
var dataNum = 0;
cellValidations?.ToList().ForEach(item =>
{
if (item.FirstList == null)
{
return;
}
var dataSourceSheetName = $"dataSource{dataNum}";
dataNum++;
var dataSourceSheet = workbook.CreateSheet(dataSourceSheetName);//创建sheet
for (var i = 0; i < item.FirstList.Count; i++)
{
var row = dataSourceSheet.GetRow(i) ?? dataSourceSheet.CreateRow(i); //添加行
row.CreateCell(0).SetCellValue(item.FirstList[i].Value); //单元格写值
if (i > 0)
{
if (item.SecondList != null && item.SecondList.Any())
{
dataSourceSheet.GetRow(0).CreateCell(i).SetCellValue(item.FirstList[i].Value);//一级列头
var datas = item.SecondList.Where(c => c.Key == item.FirstList[i].Key).ToList();
for (var j = 0; j < datas.Count; j++)
{
var secondRow = dataSourceSheet.GetRow(j + 1) ?? dataSourceSheet.CreateRow(j + 1);
secondRow.CreateCell(i).SetCellValue(datas[j].Value);//单元格写值
}
}
}
}
#region Range
for (var i = 0; i < item.FirstList.Count; i++)
{
if (i == 0)
{
var range = workbook.CreateName();
range.NameName = item.FirstList[i].Value;
range.RefersToFormula = string.Format("{0}!${3}${2}:${3}${1}",
dataSourceSheetName,
item.FirstList.Count,
2,
Index2ColName(i));
}
else
{
if (item.SecondList != null && item.SecondList.Any())
{
var cellDatas = item.SecondList.Where(c => c.Key == item.FirstList[i].Key).ToList();
if (cellDatas.Any())
{
var range = workbook.CreateName();
range.NameName = item.FirstList[i].Value;
range.RefersToFormula = string.Format("{0}!${3}${2}:${3}${1}",
dataSourceSheetName,
cellDatas.Count + 1,
2,
Index2ColName(i));
}
}
}
}
#endregion
});
#endregion
cellValidations?.ToList().ForEach(item =>
{
if (item.FirstList != null && item.FirstList.Any())
{
if (item.FirstCellLocation != null)
{
var regions = new CellRangeAddressList(item.FirstCellLocation.FirstRow, item.FirstCellLocation.LastRow, item.FirstCellLocation.FirstCol, item.FirstCellLocation.LastCol); //约束范围：c2到c65535
var helper = new XSSFDataValidationHelper((XSSFSheet)sheet); //获得一个数据验证Helper
var validation =
helper.CreateValidation(
helper.CreateFormulaListConstraint(item.FirstList[0].Value),
regions); //创建约束
validation.CreateErrorBox("错误", "请按右侧下拉箭头选择!");
validation.ShowErrorBox = true; //显示上面提示
sheet.AddValidationData(validation); //添加进去
}
}
else
{
if (item.ListOfValues != null && item.ListOfValues.Any())
{
if (item.FirstCellLocation != null)
{
var regions = new CellRangeAddressList(item.FirstCellLocation.FirstRow, item.FirstCellLocation.LastRow, item.FirstCellLocation.FirstCol, item.FirstCellLocation.LastCol); //约束范围：c2到c65535
var helper = new XSSFDataValidationHelper((XSSFSheet)sheet); //获得一个数据验证Helper
var validation =
helper.CreateValidation(helper.CreateExplicitListConstraint(item.ListOfValues),
regions); //创建约束
validation.CreateErrorBox("错误", "请按右侧下拉箭头选择!");
validation.ShowErrorBox = true; //显示上面提示
sheet.AddValidationData(validation); //添加进去
}
}
}
});
cellValidations?.ToList().ForEach(item =>
{
if (item.SecondList != null && item.SecondList.Any())
{
if (item.SecondCellLocation != null)
{
var regions = new CellRangeAddressList(item.SecondCellLocation.FirstRow, item.SecondCellLocation.LastRow, item.SecondCellLocation.FirstCol, item.SecondCellLocation.LastCol); //约束范围：c2到c65535
var helper = new XSSFDataValidationHelper((XSSFSheet)sheet); //获得一个数据验证Helper
var validation =
helper.CreateValidation(
helper.CreateFormulaListConstraint($"INDIRECT(${Index2ColName(item.FirstCellLocation.FirstCol)}2)"),
regions); //创建约束
validation.CreateErrorBox("错误", "请按右侧下拉箭头选择!");
validation.ShowErrorBox = true; //显示上面提示=Ture
sheet.AddValidationData(validation); //添加进去
}
else
{
if (item.FirstCellLocation != null)
{
var regions = new CellRangeAddressList(item.FirstCellLocation.FirstRow, item.FirstCellLocation.LastRow, item.FirstCellLocation.FirstCol + 1, item.FirstCellLocation.LastCol + 1); //约束范围：c2到c65535
var helper = new XSSFDataValidationHelper((XSSFSheet)sheet); //获得一个数据验证Helper
var validation =
helper.CreateValidation(
helper.CreateFormulaListConstraint($"INDIRECT(${Index2ColName(item.FirstCellLocation.FirstCol)}2)"),
regions); //创建约束
validation.CreateErrorBox("错误", "请按右侧下拉箭头选择!");
validation.ShowErrorBox = true; //显示上面提示=Ture
sheet.AddValidationData(validation); //添加进去
}
}
}
});
sheet.ForceFormulaRecalculation = true;
var memory = new NpoiMemoryStream {
AllowClose = false
};
workbook.Write(memory);
memory.Flush();
memory.Position = 0; // 指定内存流起始值
return(memory);
}