refresh RADgrid after download

[Neo]

Hello All,

I have requirement to refresh the RADGrid after user download the selection. So i have first column as checkboxes and users selects those checkbox and as per the selection code gets the document and gives it for download to user.


                        Response.ContentType = "text/plain";
                        Response.AddHeader("Content-Disposition", "attachment;filename=" + FileName);
                        Response.ClearContent();
                        Response.Buffer = true;
                        Response.Write(objBuilder.ToString());
                        Response.End();


So now i have to remove the selection after download and make those records of RADGrid with different color to indicate that record is already downloaded. how i can do that ?

Thanks in advance.

[Daniel]

Hello,

Please try the following:

1) Add the desired code to the ItemDataBound event

    protected void RadGrid1_ItemDataBound(object sender, GridItemEventArgs e)
    {
        if (e.Item is GridDataItem)
        {
            CheckBox cb = e.Item.FindControl("CheckBox1") as CheckBox;
            cb.BackColor = System.Drawing.Color.Red;
        }
     }

2) Update your database to mark the current row as "exported"
3) Execute your code but replace Response.End with Response.Redirect so that the page can be refreshed afterwards

Regards,
Daniel
the Telerik team

[Neo]

Hello,

Item 1 & 2 works fine, but 3 one is not working as it suppose to.

If i apply Response.Redirect instead of Response.End it does not download the document it suppose to.

It just redirects user to the page but i also want  document to be downloaded with refresh.

Response.ContentType = "text/plain";
                        Response.AddHeader("Content-Disposition", "attachment;filename=" + FileName + ".dat");
                        Response.ClearContent();
                        Response.Buffer = true;
                        Response.Write(objBuilder.ToString());
                        Response.Redirect("default.aspx",false);

Thanks.

[Neo]

3) Execute your code but replace Response.End with Response.Redirect so that the page can be refreshed afterwards

The above one does not work in this case. if i write Response.Redirect after my code it does not download the file.

[Daniel]

Hello,

Instead of writing the file to the response I suggest that you save it to the disk and then provide a direct download link as shown in the attached example.

Kind regards,
Daniel
the Telerik team