日期:2014-05-18  浏览次数:20451 次

服务端gridview导出到excel的问题
Private Sub importExl()
  Dim fileName As String = Server.MapPath("\") & "//" & Session("user_id").ToString() & "_" & Me.lblEquType.Text.ToString().Trim() & "_draft.xlsx"
  Dim fs As New FileStream(fileName, FileMode.Create, FileAccess.Write)
  Dim streamW As New StreamWriter(fs, System.Text.Encoding.GetEncoding("gb2312"))
  Dim sw As New StringWriter()
  GridConfigPara.RenderControl(htw)
  streamW.Write(sw.ToString())
  streamW.Flush()
  streamW.Close()
  End Sub
导出的excel打开错误,请教有什么好的方法 在服务端把gridview导出到excel。

------解决方案--------------------
http://www.cnblogs.com/hemood/archive/2009/08/25/1553643.html
------解决方案--------------------

C# code


  public static void PrintExcel(DataTable dt)
        {

            if (dt.Rows.Count > 0)
            {
                Excel.Application ExcelApp = new Excel.Application();
                ExcelApp.Visible = true;
                Excel.Workbooks workbooks = ExcelApp.Workbooks;
                Excel._Workbook workbook = workbooks.Add(Excel.XlWBATemplate.xlWBATWorksheet);
                Excel.Sheets sheets = workbook.Worksheets;
                Excel._Worksheet worksheet = (Excel._Worksheet)sheets.get_Item(1);

                int intColumnsCount = dt.Columns.Count;

                Excel.Range range_data = null;

                int iRow = 5;

                string strExcelBeginColumn = "A";
                string strExcelEndColumn = string.Empty;
                int a = intColumnsCount / 26;

                if (a > 0)
                {
                    string strFirstKey = ((char)(65 + (a - 1))).ToString();
                    int b = intColumnsCount % 26;
                    string strLastKey = ((char)(65 + (b - 1))).ToString();
                    if (b == 0)
                    {
                        strLastKey = "Z";

                        if (strFirstKey == "A")
                        {
                            strFirstKey = string.Empty;
                        }
                        else
                        {
                            strFirstKey = ((char)(65 + (a - 2))).ToString();
                        }
                    }

                    strExcelEndColumn = strFirstKey + strLastKey;
                }
                else
                {

                    strExcelEndColumn = ((char)(65 + (intColumnsCount - 1))).ToString();
                }



                                object[] objColumnsHeaderText = new object[intColumnsCount];
                object[] objData = new object[intColumnsCount];
                                for (int i = 0; i < dt.Columns.Count; i++)
                {
                    objColumnsHeaderText[i] = dt.Columns[i].ColumnName.ToString();
                }
                
                range_data = worksheet.get_Range(strExcelBeginColumn + iRow.ToString().Trim(), strExcelEndColumn + iRow.ToString().Trim());
                range_data.Font.Size = 10;
                range_data.Value2 = objColumnsHeaderText;
                range_data.Font.Bold = true;
                range_data.Rows.HorizontalAlignment = HorizontalAlign.Center;
                range_data.Borders.LineStyle = 1;

                for (int i = 0; i < dt.Rows.Count; i++)
                {
                    iRow++;


                    for (int j = 0; j < intColumnsCount; j++)
                    {

                        if (dt.Rows[i][j] != null)
                        {
                            objData[j] = dt.Rows[i][j].ToString().Trim();
                        }
                        else
                        {