導出數據表到Excel

Question

可能重複：
How to export DataTable to Excel in C#

我已經包括在我的項目TemplateExcel，我想我的數據表中導出到Excel中，我想複製並保存此無處不在的數據模板我想保存它，我該怎麼做？

Answer 1

1您可以使用此文章 - 基於RenderControl，可你的綁定網格工作

鏈接：http://www.codeproject.com/Tips/344604/Export-to-EXCEL-from-Datatable-in-Csharp-Net

2您可以基於你的研究與開發上表

鏈接：http://www.codeproject.com/Tips/406704/Export-DataTable-to-Excel-with-Formatting-in-Cshar

Answer 2

你可以通過Excel Interop這樣做：

using System; 
using System.Data; 
using System.Runtime.InteropServices; 
using Excel = Microsoft.Office.Interop.Excel; 

namespace ConsoleApplication3 
{ 
    class Program 
    { 
     static void Main() 
     { 
      Excel.Application application = new Excel.Application(); 
      Excel.Workbook workbook = application.Workbooks.Add(); 
      Excel.Worksheet worksheet = workbook.Sheets[1]; 

      DataTable dataTable = new DataTable(); 
      DataColumn column = new DataColumn("My Datacolumn"); 

      dataTable.Columns.Add(column); 
      dataTable.Rows.Add(new object[] {"Foobar"}); 

      var columns = dataTable.Columns.Count; 
      var rows = dataTable.Rows.Count; 

      Excel.Range range = worksheet.Range["A1", String.Format("{0}{1}", GetExcelColumnName(columns), rows)]; 

      object[,] data = new object[rows,columns]; 

      for (int rowNumber = 0; rowNumber < rows; rowNumber++) 
      { 
       for (int columnNumber = 0; columnNumber < columns; columnNumber++) 
       { 
        data[rowNumber, columnNumber] = dataTable.Rows[rowNumber][columnNumber].ToString(); 
       } 
      } 

      range.Value = data; 

      workbook.SaveAs(@"C:\test\whatever123.xlsx"); 
      workbook.Close(); 

      Marshal.ReleaseComObject(application); 
     } 

     private static string GetExcelColumnName(int columnNumber) 
     { 
      int dividend = columnNumber; 
      string columnName = String.Empty; 
      int modulo; 

      while (dividend > 0) 
      { 
       modulo = (dividend - 1) % 26; 
       columnName = Convert.ToChar(65 + modulo).ToString() + columnName; 
       dividend = (int)((dividend - modulo)/26); 
      } 

      return columnName; 
     } 
    } 
} 

我在這裏所做的是創建一個System.Data.DataTable對象，填充一些數據，然後將其導出到Excel。這需要清理，添加錯誤處理，重構等，但基礎在那裏。

對於GetExcelColumnName方法歸功於Graham。