or
<telerik:RadScriptManager runat="server" ID="RadScriptManager1" /><telerik:RadAsyncUpload runat="server" ID="radasyncUpload1" MultipleFileSelection="Automatic" AllowedFileExtensions=".jpg" TargetFolder="~/UploadImages/" /><telerik:RadButton ID="rbtnUpload" runat="server" Text="Upload"></telerik:RadButton>Some times when I run the page, IE display a popup with an error telling that the page cannot be found and In Firefox, the upload will start and it wont complete. I can see the yellow button blinking continuously. Suppose if I cancel that file, rest of the files are successfully uploaded. I am having the 2013.2.522 web.ui.dllDim ParentPageAjaxManager As RadAjaxManager = RadAjaxManager.GetCurrent(Page)
ParentPageAjaxManager.AjaxSettings.AddAjaxSetting(ParentPageAjaxManager,
Me.StudentsMasterProgramsListRadGrid)AddHandler ParentPageAjaxManager.AjaxRequest, AddressOf ParentPageAjaxManager_AjaxRequestParentPageAjaxManager.AjaxSettings.AddAjaxSetting(ParentPageAjaxManager, Me.StudentsMasterProgramsListRadGrid)