public static ExcelPackage AddSheet(this ExcelPackage ep, DataTable data)
{
ExcelWorkbook workbook = ep.Workbook;
string sheetName = data.TableName;
IExcelTypeFormater <ExcelWorksheet> defaultExcelTypeFormater = new DefaultExcelTypeFormater();
ExcelWorksheet sheet = workbook.Worksheets[sheetName];
if (sheet == null)
{
sheet = workbook.Worksheets.Add(sheetName);
}
defaultExcelTypeFormater.SetExcelWorksheet()?.Invoke(sheet);
var headerNames = new List <string>();
for (int i = 0; i < data.Columns.Count; i++)
{
headerNames.Add(data.Columns[i].ColumnName);
}
IExcelExportFormater <ExcelRangeBase> defaultExcelExportFormater = new DefaultExcelExportFormater();
int row = (sheet?.Dimension?.Rows ?? 0) + 1;
int column = 1;
//表头行
foreach (var headerName in headerNames)
{
defaultExcelExportFormater.SetHeaderCell()?.Invoke(sheet.Cells[row, column], headerName);
column++;
}
row++;
//数据行
if (data != null && data.Rows.Count > 0)
{
for (int i = 0; i < data.Rows.Count; i++)
{
column = 1;
foreach (var headerName in headerNames)
{
var mainValue = data.Rows[i][headerName];
defaultExcelExportFormater.SetBodyCell()?.Invoke(sheet.Cells[row, column], mainValue);
column++;
}
row++;
}
}
return(ep);
}
public static ExcelPackage AddSheetHeader(this ExcelPackage ep, string sheetName, IList <string> headers, Action <ExcelRangeBase, object> action = null)
{
if (string.IsNullOrEmpty(sheetName))
{
throw new ArgumentNullException(nameof(sheetName));
}
if (headers == null)
{
throw new ArgumentNullException(nameof(headers));
}
ExcelWorkbook workbook = ep.Workbook;
IExcelTypeFormater <ExcelWorksheet> defaultExcelTypeFormater = new DefaultExcelTypeFormater();
ExcelWorksheet sheet = workbook.Worksheets[sheetName];
if (sheet == null)
{
sheet = workbook.Worksheets.Add(sheetName);
}
defaultExcelTypeFormater.SetExcelWorksheet()?.Invoke(sheet);
IExcelExportFormater <ExcelRangeBase> defaultExcelExportFormater = new DefaultExcelExportFormater();
int row = (sheet?.Dimension?.Rows ?? 0) + 1;
int column = 1;
//表头行
foreach (var item in headers)
{
if (action == null)
{
defaultExcelExportFormater.SetHeaderCell()(sheet.Cells[row, column], item);
}
else
{
action.Invoke(sheet.Cells[row, column], item);
}
column++;
}
row++;
return(ep);
}
public static ExcelPackage AddSheet <T>(this ExcelPackage ep, IList <T> data = null) where T : class, new()
{
ExcelWorkbook workbook = ep.Workbook;
string sheetName = null;
IExcelTypeFormater <ExcelWorksheet> defaultExcelTypeFormater = null;
var excelAttribute = typeof(T).GetCustomAttribute <ExcelAttribute>();
if (excelAttribute == null)
{
sheetName = typeof(T).Name;
defaultExcelTypeFormater = new DefaultExcelTypeFormater();
}
else
{
if (excelAttribute.IsIncrease)
{
if (workbook.Worksheets.Count == 0)
{
sheetName = $"{excelAttribute.SheetName}";
}
else
{
sheetName = $"{excelAttribute.SheetName}{workbook.Worksheets.Count}";
}
}
else
{
sheetName = excelAttribute.SheetName;
}
if (excelAttribute.ExportExcelType != null)
{
defaultExcelTypeFormater = Activator.CreateInstance(excelAttribute.ExportExcelType) as IExcelTypeFormater <ExcelWorksheet>;
}
if (defaultExcelTypeFormater == null)
{
defaultExcelTypeFormater = new DefaultExcelTypeFormater();
}
}
ExcelWorksheet sheet = workbook.Worksheets[sheetName];
if (sheet == null)
{
sheet = workbook.Worksheets.Add(sheetName);
}
defaultExcelTypeFormater.SetExcelWorksheet()?.Invoke(sheet);
var mainPropertieList = typeof(T).ToColumnDic();
IList <IExcelExportFormater <ExcelRangeBase> > excelTypes = new List <IExcelExportFormater <ExcelRangeBase> >();
IExcelExportFormater <ExcelRangeBase> defaultExcelExportFormater = new DefaultExcelExportFormater();
int row = (sheet?.Dimension?.Rows ?? 0) + 1;
int column = 1;
//表头行
foreach (var item in mainPropertieList)
{
IExcelExportFormater <ExcelRangeBase> excelType = null;
if (item.Value.ExportExcelType != null)
{
excelType = excelTypes.Where(o => o.GetType().FullName == item.Value.ExportExcelType.FullName).FirstOrDefault();
if (excelType == null)
{
excelType = Activator.CreateInstance(item.Value.ExportExcelType) as IExcelExportFormater <ExcelRangeBase>;
excelTypes.Add(excelType);
}
}
else
{
excelType = defaultExcelExportFormater;
}
excelType.SetHeaderCell()?.Invoke(sheet.Cells[row, column], item.Value.Name);
column++;
}
row++;
//数据行
if (data != null && data.Any())
{
foreach (var item in data)
{
column = 1;
foreach (var mainPropertie in mainPropertieList)
{
IExcelExportFormater <ExcelRangeBase> excelType = null;
var mainValue = mainPropertie.Key.GetValue(item);
if (mainPropertie.Value.ExportExcelType != null)
{
excelType = excelTypes.Where(o => o.GetType().FullName == mainPropertie.Value.ExportExcelType.FullName).FirstOrDefault();
if (excelType == null)
{
excelType = Activator.CreateInstance(mainPropertie.Value.ExportExcelType) as IExcelExportFormater <ExcelRangeBase>;
excelTypes.Add(excelType);
}
}
else
{
excelType = defaultExcelExportFormater;
}
excelType.SetBodyCell()?.Invoke(sheet.Cells[row, column], mainValue);
column++;
}
row++;
}
}
return(ep);
}
