true;

RadGridComparisonLines.ExportSettings.Pdf.AllowPrinting =

true;

RadGridComparisonLines.ExportSettings.Pdf.PageLeftMargin =

Unit.Pixel(10);

RadGridComparisonLines.ExportSettings.Pdf.PageRightMargin =

Unit.Pixel(10);

RadGridComparisonLines.ExportSettings.ExportOnlyData =

false;

RadGridComparisonLines.MasterTableView.ExportToPdf();

I need a function like the ShowAlert button in this demo
http://demos1x.telerik.com/aspnet/Window/Examples/BrowserDialogBoxes/DefaultCS.aspx

However instead of invoking a popup window by a button click, as in the demo, I want to invoke the popup window inside an IF statement in the code behind of a user control.
After the user clicks "Yes" or "Cancel" the value of this user selection needs to be returned to the IF statement in the code behind.

In other words, I need almost the same thing as the demo except the modal popup window needs to be triggered in the code behind instead of by the user clicking on a button.

More specifically, I am using a RadUpload. After the user selects (browses for) a file, I check the filename.  If the name is non-standard I want a modal popup to warn the user and ask if the user wants to proceed.

 protected void buttonUpload_Click(object sender, EventArgs e)
        {
           
           FileNameType fileType = (FileNameType)Enum.Parse(typeof(FileNameType), RadComboBoxUploadType.SelectedValue);

            foreach (UploadedFile file in RadUploadSCS.UploadedFiles)
            {
           
                string mg = msgFileOK(file.FileName, RadComboBoxUploadType.SelectedItem.Text);

                if (mg.Length > 0)
...Here I want to popup the window and get a yes/cancel response back from the user