Sys.WebForms.PageRequestManage...

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I have a grid view on my page and i want to export it to the Excel Sheet, Below is the code i had written to do this task, here i am already passing the dataset to the method to bind the grid and btnExcelExport is the button which will export the Grid Content in to Excel Sheet :-

C#

private void BindGridView(DataSet ds)
    {
        if (ds.Tables.Count > 0)
        {
            if (ds.Tables[0].Rows.Count > 0)
            {
                GVUserReport.DataSource = ds;
                GVUserReport.DataBind();
                btnExcelExport.Visible = true;
            }
        }

    }

    protected void btnExcelExport_Click(object sender, EventArgs e)
    {
        Response.Clear();
        Response.AddHeader("content-disposition", "attachment;filename=FileName.xls");
        Response.Charset = "";
        Response.Cache.SetCacheability(HttpCacheability.NoCache);
        Response.ContentType = "application/vnd.xls";
        System.IO.StringWriter stringWrite = new System.IO.StringWriter();
        System.Web.UI.HtmlTextWriter htmlWrite = new HtmlTextWriter(stringWrite);
        GVUserReport.RenderControl(htmlWrite);
        Response.Write(stringWrite.ToString());
        Response.End();

    }

    public override void VerifyRenderingInServerForm(Control control)
    {
        return;
    }

Now when i m debugging i found that the grid is binded sucessfully but when trying to export it to Excel , i m getting this Error "Microsoft JScript runtime error: Sys.WebForms.PageRequestManagerParserErrorException: The message received from the server could not be parsed."

Posted 26-Jun-12 21:08pm

Dharmenrda Kumar Singh

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Vani Kulkarni · Accepted Answer · 2012-06-26T21:15:00

Solution 1

I suppose you are using UpdatePanel in your code. I have faced this issue, below code worked for me. See if it helps you. Add following code in the Page_Load event of your page:

C#

  protected void Page_Load(object sender, EventArgs e) 
  { 
          
     ScriptManager scriptManager = ScriptManager.GetCurrent(this.Page); 

     scriptManager.RegisterPostBackControl(this.btnExcelExport);
     // Your Further Code
     ......
}

Posted 26-Jun-12 21:15pm

Vani Kulkarni

Comments

Dharmenrda Kumar Singh 27-Jun-12 3:40am

Yes it Worked, Thanks a lot :)

Vani Kulkarni 27-Jun-12 3:41am

Glad it worked! :)

Sandeep Mewara 27-Jun-12 4:39am

So how long it took you to crack it when you faced it? :)

BTW, 5!

Vani Kulkarni 27-Jun-12 5:02am

Not too long.. Google was there for my help :) Thanks!

Sandeep Mewara 27-Jun-12 5:16am

Aaah! Mr. Google...