您必须从以下位置导入 Microsoft.Office.Interop.Excel.dll 库here http://files.cnblogs.com/fan0136/Microsoft.Office.Interop.Excel.rar。在您的项目中添加新的类文件,例如 ExcelUtility。只需在其中写下以下代码即可。
using System;
using System.Collections.Generic;
using System.Text;
using System.Data;
using Excel = Microsoft.Office.Interop.Excel;
namespace ExcelDemo
{
public class ExcelUtility
{
public static void CreateExcel(DataSet ds, string excelPath)
{
Excel.Application xlApp;
Excel.Workbook xlWorkBook;
Excel.Worksheet xlWorkSheet;
object misValue = System.Reflection.Missing.Value;
try
{
//Previous code was referring to the wrong class, throwing an exception
xlApp = new Excel.Application();
xlWorkBook = xlApp.Workbooks.Add(misValue);
xlWorkSheet = (Excel.Worksheet)xlWorkBook.Worksheets.get_Item(1);
for (int i = 0; i <= ds.Tables[0].Rows.Count - 1; i++)
{
for (int j = 0; j <= ds.Tables[0].Columns.Count - 1; j++)
{
xlWorkSheet.Cells[i + 1, j + 1] = ds.Tables[0].Rows[i].ItemArray[j].ToString();
}
}
xlWorkBook.SaveAs(excelPath, Excel.XlFileFormat.xlWorkbookNormal, misValue, misValue, misValue, misValue, Excel.XlSaveAsAccessMode.xlExclusive, misValue, misValue, misValue, misValue, misValue);
xlWorkBook.Close(true, misValue, misValue);
xlApp.Quit();
releaseObject(xlApp);
releaseObject(xlWorkBook);
releaseObject(xlWorkSheet);
}
catch (Exception ex)
{
throw ex;
}
}
private static void releaseObject(object obj)
{
try
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(obj);
obj = null;
}
catch
{
obj = null;
}
finally
{
GC.Collect();
}
}
}
}
现在在主代码中只需传递数据集对象和 Excel 路径,如下所示。
ExcelUtility.CreateExcel(ds, "D:\\Demo.xls");
我已经在我的项目中测试并使用了它。