C#导出Excel的函数及注意事项

public static void ExportExcel(DataSet ds, string strExcelFileName)

{

object objOpt = System.Reflection.Missing.Value;

Excel.Application excel = new Excel.Application();

excel.Visible = true;

Excel._Workbook wkb = excel.Workbooks.Add(objOpt);

Excel._Worksheet wks = (Excel._Worksheet)wkb.ActiveSheet;

wks.Visible = Excel.XlSheetVisibility.xlSheetVisible;

int rowIndex = 1;

int colIndex = 0;

System.Data.DataTable table = ds.Tables[0];

foreach (DataColumn col in table.Columns)

{

colIndex++;

excel.Cells[1, colIndex] = col.ColumnName;

}

foreach (DataRow row in table.Rows)

{

rowIndex++;

colIndex = 0;

foreach (DataColumn col in table.Columns)

{

colIndex++;

excel.Cells[rowIndex, colIndex] = row[col.ColumnName].ToString();

}

}

//excel.Sheets[0] = "sss";

wkb.SaveAs(strExcelFileName, objOpt, null, null, false, false, Excel.XlSaveAsAccessMode.xlNoChange, null, null, null, null, null);

wkb.Close(false, objOpt, objOpt);

excel.Quit();

}

<identity impersonate="true" userName="administrator" password="**********"/>

webconfig中加上