I could not able upload large excel file into sql in asp.net

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I have a 22 MB excel file .. i need to upload it from asp.net page.
I have used the below code.. But it is not working when file size is larger

C#

uploadfile = fileuploadExcel.PostedFile.FileName;
            filename = Path.GetFileName(uploadfile);
            extension = Path.GetExtension(uploadfile);
            String fname, spath;
            spath = Server.MapPath(@"ExcelFile/" + filename);
            fname = filename;
            if (System.IO.File.Exists(fname))
            {
                System.IO.File.Delete(fname);
                fileuploadExcel.SaveAs(spath);
            }
            else
            {
                fileuploadExcel.SaveAs(spath);
            }
            path = fileuploadExcel.PostedFile.FileName;
            excelConnectionString = @"Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=" + path + ";" + "Extended Properties=Excel 8.0;";
            excelConnection = new OleDbConnection(excelConnectionString);
            OleDbCommand cmd = new OleDbCommand("Select * from [Sheet4$]", excelConnection);
            excelConnection.Open();
            OleDbDataReader dReader;
            dReader = cmd.ExecuteReader();
            SqlBulkCopy sqlBulk = new SqlBulkCopy(connectionstring);
            sqlBulk.DestinationTableName="Rawdata";
            sqlBulk.WriteToServer(dReader);
            excelConnection.Close();
            excelConnection.Dispose();

please suggest me/share the code

Posted 9-Oct-11 21:53pm

Rajesh Duraisamy

Updated 13-Oct-11 9:29am

Monjurul Habib

v2

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Humayun Kabir Mamun · Accepted Answer · 2011-10-09T22:40:00

You can increase the limit by modify the Web.Config file. The attribute "maxRequestLength" describes this feature.

maxRequestLength:Attribute indicates the maximum file upload size supported by ASP.NET.The size specified is in kilobytes. The default is "4096" (4 MB).

Example:

XML

<system.web>
  <httpRuntime executionTimeout="240" maxRequestLength="20480" />
</system.web>