or
Hi
I am uploading files to server from webpage. Here I am checking whether file exist or not in server if exist I would like to ask Confirmation message like ‘File already Exist on Server, do you want to Override, if YES I want to Override, if NO I want to skip that file and go for next file.
Here I am using Telerik:RadUpload control to upload multiple files.
Can you please help me to solve this issue.

Can we configure multi-level context menu on a RadTreeeView to behave the following way:
if user clicks on the selected item, which leads to another sub-menu, this sub-menu becomes visible and stays this way (usually all menus disappear when the user takes cursor off them).
Thank you,
Irene Troupansky

User control with Radwindow wizard:<%@ Control language="VB" AutoEventWireup="false" CodeFile="gallery.ascx.vb" Inherits="Gallery" %><%@ Reference VirtualPath="~/sites_admin/admin.master" %><!-- this buttons opens the popup --><asp:Button ID="ButtonAddNew" runat="server" CausesValidation="false" OnClick="ButtonAddNew_Click" /><telerik:RadAjaxPanel ID="RadAjaxPanel1" runat="server"><telerik:RadWindowManager ID="RadWindowManager01" Modal="true" runat="server"> <Windows> <telerik:RadWindow ID="RadWindowImageEdit" Skin="kSitefinity" AutoSize="true" EnableEmbeddedSkins="false" EnableEmbeddedBasestylesheet="false" Behaviors= "Close" VisibleTitlebar="true" VisibleStatusbar="false" KeepInScreenBounds="true" EnableShadow="false" VisibleOnPageLoad = "False" runat="server"> <ContentTemplate> <div style="width: 900px; padding: 6px;"><asp:panel id="panel01" runat="server"> <!--Form part 1 content here --> <asp:button id="ButtonNext01" ValidationGroup="vgText" CausesValidation="True" runat="server" OnClick="OnClick_ButtonNext01"/>
</asp:panel><asp:panel id="panel02" runat="server"> <!--Form part 2 content here --> <asp:button id="Buttonback02" ValidationGroup="vgText" CausesValidation="True" runat="server" OnClick="OnClick_Buttonback02"/>
</asp:panel></div> </ContentTemplate> </telerik:RadWindow> </Windows> </telerik:RadWindowManager> </telerik:RadAjaxPanel>CODE BEHIND:'this pops up the window the first time ready to add a new itemProtected Sub ButtonAddNew_Click(ByVal sender As Object, ByVal e As EventArgs) 'some server side code here 'show the modal popup RadWindowImageEdit.VisibleOnPageLoad = TrueEnd Sub 'panel navigationProtected Sub OnClick_ButtonNext01(ByVal sender As Object, ByVal e As EventArgs) 'some validation code herepanel02.Visible = Truepanel01.Visible = FalseEnd SubProtected Sub OnClick_Buttonback02(ByVal sender As Object, ByVal e As EventArgs) 'some validation code herepanel02.Visible = Falsepanel01.Visible = TrueEnd Sub