导出后在Excel文件中解决错误

我有一个函数将我的GridViews导出为Excel .xlsx。 但是，我面临的问题与打开/保存对话框保存的Excel文件。 当我尝试打开Excel文件时发生错误：

我目前的代码：

protected void EXPORT_BUTTON_Click(object sender, EventArgs e) { Microsoft.Office.Interop.Excel._Application app = new Microsoft.Office.Interop.Excel.Application(); // creating new WorkBook within Excel application Microsoft.Office.Interop.Excel._Workbook workbook = app.Workbooks.Add(Type.Missing); String DATA1 = "DATA 1"; String DATA2 = "DATA 2"; ExportToExcel(app, workbook, DATA1 , DATA_1 ); workbook.Worksheets["Sheet1"].Delete(); workbook.Worksheets["Sheet2"].Delete(); workbook.Worksheets["Sheet3"].Delete(); ExportToExcel(app, workbook, DATA2 , DATA_2); workbook.SaveAs(@"C:\Users\testacc\Desktop\Test\" + "Server_" + datetime.ToString("dd-MM-yyyy_hh-mm-ss") + ".xlsx", Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlExclusive, Type.Missing, Type.Missing, Type.Missing, Type.Missing); var filename = "Report_" + datetime.ToString("dd-MM-yyyy_hh-mm-ss") + ".xlsx"; workbook.SaveAs(Server.MapPath("~/Exports/") + filename, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlExclusive, Type.Missing, Type.Missing, Type.Missing, Type.Missing); Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"; Response.AddHeader("content-disposition", "attachment, filename=" + filename); workbook.Close(); Response.TransmitFile(Server.MapPath("~/Exports/") + filename); app.Quit(); } 

Answer 1

如果可以的话，你可以试试下面的代码。

 protected void EXPORT_BUTTON_Click(object sender, EventArgs e) { using(Microsoft.Office.Interop.Excel._Application app = new Microsoft.Office.Interop.Excel.Application()) // creating new WorkBook within Excel application using(Microsoft.Office.Interop.Excel._Workbook workbook = app.Workbooks.Add(Type.Missing)) { String DATA1 = "DATA 1"; String DATA2 = "DATA 2"; ExportToExcel(app, workbook, DATA1 , DATA_1 ); workbook.Worksheets["Sheet1"].Delete(); workbook.Worksheets["Sheet2"].Delete(); workbook.Worksheets["Sheet3"].Delete(); ExportToExcel(app, workbook, DATA2 , DATA_2); workbook.SaveAs(@"C:\Users\testacc\Desktop\Test\" + "Server_" + datetime.ToString("dd-MM-yyyy_hh-mm-ss") + ".xlsx", Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlExclusive, Type.Missing, Type.Missing, Type.Missing, Type.Missing); var filename = "Report_" + datetime.ToString("dd-MM-yyyy_hh-mm-ss") + ".xlsx"; workbook.SaveAs(Server.MapPath("~/Exports/") + filename, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlExclusive, Type.Missing, Type.Missing, Type.Missing, Type.Missing); Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"; Response.AddHeader("content-disposition", "attachment, filename=" + filename); workbook.Close(); Response.TransmitFile(Server.MapPath("~/Exports/") + filename); Response.End(); app.Quit(); } }