ScriptManager.RegisterStartupScript未正确执行

Question

在我的VB文件中，我有一些代码（我只会发布相关的部分，因为那里有很多代码）我试图执行一些JavaScript，所以我使用的是ScriptManager。的RegisterStartupScript。问题是脚本没有被执行，直到我远远超过我拥有它的行

If CmbRecordType.SelectedValue <> 37 Then
      'Xstuff to do
            Else
                'scriptstring = "Your File has been Received and will be processed soon.  Please reference your File ID #" & FileID & " if you need to contact support for any reason regarding this file."
                'RadWindowManager1.RadAlert(scriptstring, 330, 180, Title, Nothing)

                BtnCreateFileRecID.Visible = True

                Label3.Visible = False
                Image2.Visible = False

                scriptstring = "radalert('Your File has been Received and will be processed soon.  Please reference your File ID #" & FileID & " if you need to contact support for any reason regarding this file.', 330, 180);"
                ScriptManager.RegisterStartupScript(Me, Me.GetType(), "Accepted File", scriptstring, True)
            End If

在执行此脚本之前，它会直接跳转到下一个If语句，为什么会有任何想法？