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C#? ???? ???????? Excel? ???? ??? ? ??? ??? ? ????. ?? ?? ??? ???? ???? ?????. ?? ?? ?? ?? ???? ???? ?? ??? ??? ? ????.
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private static void ExportToExcel(DataTable dt, string FileName) { // Create an ExcelPackage object. using (ExcelPackage excelPackage = new ExcelPackage()) { // Add a new worksheet to the package. ExcelWorksheet ws = excelPackage.Workbook.Worksheets.Add(FileName); // Load the data from the DataTable into the worksheet. ws.Cells["A1"].LoadFromDataTable(dt, true); // Autofit the columns to accommodate the data. ws.Cells[ws.Dimension.Address].AutoFitColumns(); // Iterate through the columns and apply decimal formatting to the desired ones. for (int col = 1; col <= ws.Dimension.End.Column; col++) { // Get the cell in the first row (header row) of the column. var cell = ws.Cells[1, col]; // If the column contains numeric data, apply decimal formatting to it. var columnType = dt.Columns[col - 1].DataType; if (columnType == typeof(decimal) || columnType == typeof(double)) { // Set the number format to two decimal places. cell.Style.Numberformat.Format = "0.00"; } } // Convert the ExcelPackage object to a byte array. byte[] bin = excelPackage.GetAsByteArray(); // Send the byte array to the browser for download. Response.ClearHeaders(); Response.Clear(); Response.Buffer = true; Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"; Response.AddHeader("content-length", bin.Length.ToString()); Response.AddHeader("content-disposition", "attachment; filename=\"" + FileName + ".xlsx\""); Response.OutputStream.Write(bin, 0, bin.Length); Response.Flush(); // Complete the request and clean up. HttpContext.Current.ApplicationInstance.CompleteRequest(); } }
? ???? DataTable? ?? ??? ?? ??? ??????. ExcelPackage ??? ??? ??? ???? ?????. ?? ?? ??? ? ?? ???? ?? ???? ???? ??? ?????. ???? ??? ?? ? ??? ????? ?? ??? "0.00"?? ?????. ????? ExcelPackage? ??? ??? ???? ????? ?? ??? ?????.
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