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After clicking on some button the page, i run some function to fetch the records in dg and pass dg to below function and filename.

private void ExportToExcel(string strFileName, DataGrid dg)
        HttpContext.Current.Response.Buffer = true;
        HttpContext.Current.Response.AddHeader("content-disposition", "attachment; filename=" + strFileName + ".xls");
        HttpContext.Current.Response.ContentType = "application/";
        HttpContext.Current.Response.Charset = "";
        System.IO.StringWriter sw = new System.IO.StringWriter();
        HtmlTextWriter htw = new HtmlTextWriter(sw);
//dg is DataGrid records

when it promts to open the excel file then it shows below message
"The file you trying to open, 'filename.xls', is in a different format than specified by the file extension.Verify that the file is not corrupted and is from a trusted source before opening the file. Do you want to open the file now?"<br />
Yes | No | Help
Posted 26-Jun-12 19:58pm
Updated 26-Jun-12 20:02pm

1 solution

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