RadUpload does NOT work in UserControls

[reza]

Hi
please consider this simple UserControl :
ASCX :
<%@ Control Language="C#" AutoEventWireup="true" CodeFile="WebUserControl.ascx.cs" Inherits="WebUserControl" %>
<telerik:RadUpload ID="up" runat="server"></telerik:RadUpload>
<asp:Button ID="Button1" runat="server" Text="Button" onclick="Button1_Click" />

C# :
    protected void Button1_Click(object sender, EventArgs e)
    {
        int c = up.UploadedFiles.Count;
        int i = up.InvalidFiles.Count;
    }
I always get 0 for both UploadedFiles , and InvalidFiles 
it seems this problem is in UserControls !!
have I done anything wrong
if no , can I fix the problem

Thank you for your feedback

[Princy]

Hello,

I have tried to reproduce the issue but no avail. If you have enabled ajax, then disable the AJAX functionality as explained in the following documentation.
Uploading Files with AJAX

Hope it helps.
Thanks,
Princy.

[reza]

Hi
Yes you are right
Thank you very much