Questions on UI for ASP.NET AJAX Forum

2 answers

189 views

Can't get HierarchyLoadMode="ServerOnDemand" to work

Dear Telerik Team,

I can't get HierarchyLoadMode="ServerOnDemand" to work. Could you please point me a direction where to search for solving the problem ?

Here is my code : the RadGridProgramme contains 1.000 records. It contains Programs. Each Program contains 500 Projects. If I bind everything in the same time, ServerBind, it's very slow. That's why I would like to bind each RadGridProjetNested on ItemExpand command. But it doesn't work. In any of my trials, RadGridProjetNested bind in the first load, then bind another time on ItemExpand command...

Aspx :

<%@ Page Language="C#" MasterPageFile="~/Pages/Master/MasterPage.master" AutoEventWireup="true"

CodeFile="Programme.aspx.cs" Inherits="Pages_Projets_Programme" Title="Programme" %>

<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="Server">

</asp:Content>

<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server">

<telerik:RadAjaxManager ID="RessourceManager" runat="server">

<AjaxSettings>

<telerik:AjaxSetting AjaxControlID="RessourceManager">

<UpdatedControls>

<telerik:AjaxUpdatedControl ControlID="RadGridProgramme" LoadingPanelID="RadAjaxLoadingPanel1" />

</UpdatedControls>

</telerik:AjaxSetting>

<telerik:AjaxSetting AjaxControlID="RadGridProgramme">

<UpdatedControls>

<telerik:AjaxUpdatedControl ControlID="RadGridProgramme" LoadingPanelID="RadAjaxLoadingPanel1" />

</UpdatedControls>

</telerik:AjaxSetting>

<telerik:AjaxSetting AjaxControlID="RadGridProjetNested">

<UpdatedControls>

<telerik:AjaxUpdatedControl ControlID="RadGridProjetNested" LoadingPanelID="RadAjaxLoadingPanel1" />

</UpdatedControls>

</telerik:AjaxSetting>

</AjaxSettings>

</telerik:RadAjaxManager>

<fieldset>

<telerik:RadGrid ID="RadGridProgramme" runat="server" AutoGenerateColumns="False"

DataSourceID="SqlDataSourceProgramme" GridLines="None" ShowFooter="True" AllowSorting="True"

EnableLinqExpressions="False" OnItemCreated="RadGridProgramme_ItemCreated" OnDataBound="RadGridProgramme_DataBound"

OnItemCommand="RadGridProgramme_ItemCommand" EnableEmbeddedSkins="false">

<MasterTableView DataKeyNames="IdProgramme" DataSourceID="SqlDataSourceProgramme"

ShowHeader="true" AutoGenerateColumns="False" AllowPaging="true" HierarchyLoadMode="ServerOnDemand"

CommandItemDisplay="Top" Name="Master">

<NestedViewTemplate>

<asp:Panel runat="server" ID="InnerContainer" Visible="false" class="PanelTache">

<asp:Label ID="IdprogProjet" Font-Bold="true" Font-Italic="true" Text='<%# Eval("IdProgramme") %>'

Visible="false" runat="server" />

<telerik:RadGrid AllowSorting="False" DataSourceID="ProjectsDataSource" AutoGenerateColumns="False"

EnableEmbeddedSkins="false" EnableLinqExpressions="false" GridLines="None" ID="RadGridProjetNested"

OnItemCommand="RadGridProjetNested_ItemCommand" OnItemCreated="RadGridProjetNested_ItemCreated"

runat="server" ShowFooter="true" OnItemDataBound="RadGridProjetNested_ItemDataBound">

<MasterTableView ShowHeader="true" AutoGenerateColumns="False" AllowPaging="false"

HierarchyLoadMode="ServerOnDemand" CommandItemDisplay="Top" DataKeyNames="IdProjet"

RetrieveAllDataFields="true" AdditionalDataFieldNames="IdProgramme" Name="RadGridProjetNestedMDView">

<ParentTableRelation>

<telerik:GridRelationFields DetailKeyField="IdProjet" MasterKeyField="IdProgramme" />

</ParentTableRelation>

<Columns>

<telerik:GridBoundColumn DataField="Libelle" DefaultInsertValue="" HeaderText="Libellé"

SortExpression="Libelle" UniqueName="Libelle" />

</Columns>

</MasterTableView>

</telerik:RadGrid>

<asp:SqlDataSource ID="ProjectsDataSource" runat="server" ConnectionString="<%$ ConnectionStrings:CSSA %>"

SelectCommand="LIST_Project" SelectCommandType="StoredProcedure">

<SelectParameters>

<asp:SessionParameter Name="IdRequester" SessionField="IdUser" Type="Int32" />

<asp:ControlParameter ControlID="IdprogProjet" PropertyName="Text" Type="String"

Name="IdProgrammeParent" />

</SelectParameters>

</asp:SqlDataSource>

</asp:Panel>

</NestedViewTemplate>

<ExpandCollapseColumn Visible="True">

</ExpandCollapseColumn>

<Columns>

<telerik:GridBoundColumn DataField="IdProgramme" DataType="System.Int32" DefaultInsertValue=""

HeaderText="IdProgramme" ReadOnly="True" SortExpression="IdProgramme" UniqueName="IdProgramme"

Visible="false">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="Libelle" DefaultInsertValue="" HeaderText="Libellé"

SortExpression="Libelle" UniqueName="Libelle">

</telerik:GridBoundColumn>

</Columns>

</MasterTableView>

</telerik:RadGrid>

</fieldset>

<asp:SqlDataSource ID="SqlDataSourceProgramme" runat="server" ConnectionString="<%$ ConnectionStrings:CSSA %>"

SelectCommand="LIST_Programme" SelectCommandType="StoredProcedure">

<SelectParameters>

<asp:SessionParameter Name="idRequester" SessionField="IdUser" Type="Int32" />

</SelectParameters>

</asp:SqlDataSource>

<telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" runat="server" Skin="Default">

</telerik:RadAjaxLoadingPanel>

</asp:Content>

Aspx.cs :

using System;

using System.Collections.Generic;

using System.Configuration;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using Telerik.Web.UI;

public partial class Pages_Projets_Programme : Page

{

/// <summary>

/// Handles the Load event of the Page control.

/// </summary>

/// <param name="sender">The source of the event.</param>

/// <param name="e">The <see cref="System.EventArgs"/> instance containing the event data.</param>

protected void Page_Load(object sender, EventArgs e)

{

}

/// <summary>

/// Handles the DataBound event of the RadGridProgramme control.

/// </summary>

/// <param name="sender">The source of the event.</param>

/// <param name="e">The <see cref="System.EventArgs"/> instance containing the event data.</param>

protected void RadGridProgramme_DataBound(object sender, EventArgs e)

{

if (!String.IsNullOrEmpty(SessionObject.IndexItemExpanded))

{

foreach (String strIndex in SessionObject.IndexItemExpanded.Split('-'))

{

if (!String.IsNullOrEmpty(strIndex))

{

Int32 Index = Convert.ToInt32(strIndex);

RadGridProgramme.Items[Index].Expanded = true;

RadGridProgramme.Items[Index].ChildItem.FindControl("InnerContainer").Visible = true;

}

/// <summary>

/// Display the list of associated projects

/// </summary>

/// <param name="source"></param>

/// <param name="e"></param>

protected void RadGridProgramme_ItemCommand(object source, GridCommandEventArgs e)

{

// Multi-Items stays expanded after Rebind()

if (e.CommandName == RadGrid.ExpandCollapseCommandName)

{

if (!e.Item.Expanded)

{

SessionObject.IndexItemExpanded += "-" + e.Item.ItemIndexHierarchical;

}

else

{

if (!String.IsNullOrEmpty(SessionObject.IndexItemExpanded))

{

SessionObject.IndexItemExpanded = SessionObject.IndexItemExpanded.Replace("-" + e.Item.ItemIndexHierarchical, "");

}

e.Item.Selected = !e.Item.Selected;

((GridDataItem)e.Item).ChildItem.FindControl("InnerContainer").Visible =

!((GridDataItem)e.Item).ChildItem.FindControl("InnerContainer").Visible;

}

if (e.CommandName == RadGrid.PageCommandName)

{

SessionObject.IndexItemExpanded = null;

}

/// <summary>

///

/// </summary>

/// <param name="sender">The source of the event.</param>

/// <param name="e">The <see cref="Telerik.Web.UI.GridItemEventArgs"/> instance containing the event data.</param>

protected void RadGridProgramme_ItemCreated(object sender, GridItemEventArgs e)

{

}

/// <summary>

///

/// </summary>

/// <param name="source"></param>

/// <param name="e"></param>

protected void RadGridProjetNested_ItemCommand(object sender, GridCommandEventArgs e)

{

}

/// <summary>

/// Handles the ItemCreated event of the RadGridProjetNested control.

/// ItemCreated is fired before the item is data-bound. Thus no data is still in the cells' text or input controls.

/// </summary>

/// <param name="sender">The source of the event.</param>

/// <param name="e">The <see cref="Telerik.Web.UI.GridItemEventArgs"/> instance containing the event data.</param>

protected void RadGridProjetNested_ItemCreated(object sender, GridItemEventArgs e)

{

}

/// <summary>

/// Handles the ItemDataBound event of the RadGridProjetNested control.

/// </summary>

/// <param name="sender">The source of the event.</param>

/// <param name="e">The <see cref="Telerik.Web.UI.GridItemEventArgs"/> instance containing the event data.</param>

protected void RadGridProjetNested_ItemDataBound(object sender, GridItemEventArgs e)

{

}

I abstracted some logic to make the code more clear but that's it.

Please help I'm stuck !!

S.F.

Grid

answered on 01 Apr 2011

1 answer

128 views

RadWindowManager breaks onTelerik 2011 with .Net 4.0

Hi,

We've a perfectly working code migrated (from .Net 3.5 Teleri 2009 Q2) to .Net 4.0 and Telerik 2011.

Almost all functionalites works fine except all the RadWindowManager $create(Telerik.Web.UI.RadWindowManager ..) calls fails
The call fails at a.beginUpdate() in the MicrosoftAjax.js script line... it says "obeject property or method not supported"

All the RadWindow $create calls are working fine.

Urgent issue, Please help.

Thanks,

Gopi

Window

answered on 01 Apr 2011

1 answer

108 views

Navigate to filtermenu in grid with keyboard

I've search around the forum trying to find a way to navigate a grid only using the keyboard and I have found some solutions, but not all works.
So far I can focus on the grid and navigate between rows and pages, but I need a way to enter sorting and the filtermenu - I can't get the example from the forum with the FocusMenu function to work.

<telerik:RadCodeBlock ID="RadCodeBlock1" runat="server">

<script type="text/javascript">

function FocusMenu(menu, eventArgs)

{

menu.get_items().getItem(0).get_linkElement().focus();

}

</script>

</telerik:RadCodeBlock>

<telerik:RadGrid ID="RadGridAxOrder" runat="server"

DataSourceID="sdsAxOrderView"

AllowPaging="True"

AllowSorting="True"

AllowFilteringByColumn="True"

GridLines="None"

AutoGenerateColumns="False"

onitemcommand="RadGridAxOrder_ItemCommand"

onprerender="RadGridAxOrder_PreRender">

<GroupingSettings CaseSensitive="false" />

<ClientSettings AllowKeyboardNavigation="true" >

<KeyboardNavigationSettings FocusKey="G" />

</ClientSettings>

<MasterTableView AutoGenerateColumns="False" DataSourceID="sdsAxOrderView">

<Columns>

<telerik:GridBoundColumn DataField="ordreNr"

FilterControlAltText="Filter ordreNr column" HeaderText="Ordrenr."

ReadOnly="True" SortExpression="ordreNr" UniqueName="ordreNr">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="ordreNavn"

FilterControlAltText="Filter ordreNavn column" HeaderText="Ordrenavn"

SortExpression="ordreNavn" UniqueName="ordreNavn">

</telerik:GridBoundColumn>

And so on

protected void RadGridAxOrder_ItemCommand(object sender, Telerik.Web.UI.GridCommandEventArgs e)

{

if (e.CommandName == "Edit")

{

e.Canceled = true;

}

protected void RadGridAxOrder_PreRender(object sender, EventArgs e)

{

RadGridAxOrder.FilterMenu.OnClientShown = "FocusMenu";

}

Note: I don't want the edit-form to be activated - that's the reason for the ItemCommand-event.

I'm also looking for a way to make the filtermenu focused automatically on page load and making the grid focused automatically when the users navigates to another page in the grid.

Grid

answered on 01 Apr 2011

41 answers

565 views

[Solved] RadEditor for WCM SharePoint SpecialTags and scripts

I am using RadEditor for SharePoint 5.5.0.0 for a client of ours.

The requirement is to enable embedding flash/youtube videos in to the page content.

I followed the instructions from other threads here on the forum

1) In the ConfigFile.xml

<configuration>
<property name="AllowScripts">true</property>
<property name="AllowThumbGeneration">True</property>
<property name="ConvertToXhtml">True</property>
<property name="EnableDocking">False</property>
<property name="ShowHtmlMode">True</property>
<property name="ShowPreviewMode">False</property>
<property name="StripAbsoluteAnchorPaths">False</property>
<property name="StripAbsoluteImagesPaths">False</property>
<property name="ToolbarMode">ShowOnFocus</property>
<property name="ToolsWidth">800px</property>
<property name="NewLineBr">False</property>
<property name="ImagesPaths">
<item>SiteCollectionImages</item>
</property>
</configuration>

2) In the page layout, i have set AllowSpecialTags="true"

radE is the tagprefix for telerik defined on the page header

<%@ Register TagPrefix="radE" Namespace="Telerik.SharePoint.FieldEditor" Assembly="RadEditorSharePoint, Version=5.5.0.0, culture=neutral, PublicKeyToken=1f131a624888eeed" %>

3) When the page is published the render DOESNOT show the videos. When I do a view source, I get

<pre style="display:none" id=RadEditorEncodedTag>PEVNQkVEIHN0eWxlPSJXSURUSD.............

this wraps all the special areas where special tags are placed.

How do I force these to display with proper decoding of tags ?

Can someone help me fix what I am doing wrong ?

Thanks.

WebParts for SharePoint

answered on 01 Apr 2011

1 answer

140 views

Dashboard Ajax Load Panel with UserControl s

I would like to know how to implement a dashboard like page that ajaxly load 4 usercontrols (widgets) after the page has loaded in the browser. I would like Rad Loading Panels to be displayed whilst the Content panels are loading.

Could I use javascript document ready and attempt to load the usercontrols into the panels?

I have used the documentation available here: http://www.telerik.com/help/aspnet-ajax/ajax-load-user-controls.html which is helpful but does not address my concern which is to activate the ajax load on document ready.

Ajax

answered on 01 Apr 2011

3 answers

177 views

Performance in Radchart

Hi,

I am new for telerik charting. i want to display a chart , in which values are binding from DB. i tried using following code but am facing performance issue - it is very very slow. can u suggest the needful

Here is the code which i used:
aspx code

<telerik:RadChart ID="RadChart1" runat="server" ChartImageFormat="Jpeg" ChartTitle-Visible="True">

<Appearance BarWidthPercent="60" ></Appearance>

<Legend Appearance-Position-AlignedPosition="BottomLeft" Appearance-Location="OutsidePlotArea" >

<TextBlock Appearance-Position-AlignedPosition="BottomLeft"></TextBlock>

</Legend>

<ChartTitle TextBlock-Text="Forecast Vs Plan" > </ChartTitle>

<Series>

<telerik:ChartSeries DataYColumn="Base" Name="Base">

<Appearance FillStyle-MainColor="#ffff66" FillStyle-SecondColor="#ffff66" Border-Color="#000000" Border-PenStyle="Solid">

</Appearance>

</telerik:ChartSeries>

<telerik:ChartSeries DataYColumn="Plan" Name="Plan">

<Appearance FillStyle-MainColor="#ff0033" FillStyle-SecondColor="#ff0033" Border-Color="#000000" Border-PenStyle="Solid">

</Appearance>

</telerik:ChartSeries>

<telerik:ChartSeries DataYColumn="ForeCast" Name="ForeCast" >

<Appearance FillStyle-MainColor="#6600cc" FillStyle-SecondColor="#6600cc" Border-Color="#000000" Border-PenStyle="Solid">

</Appearance>

</telerik:ChartSeries>

</Series>

<PlotArea Appearance-Position-Y="100">

<XAxis VisibleValues="Positive">

<Appearance MajorGridLines-PenStyle="Solid" MajorGridLines-Color="#000000">

<TextAppearance AutoTextWrap="True" ></TextAppearance>

</Appearance>

</XAxis>

<YAxis VisibleValues="Positive" >

<Appearance MajorGridLines-PenStyle="Solid" MajorGridLines-Color="#000000"></Appearance>

</YAxis>

</PlotArea>

</telerik:RadChart>

aspx.cs code:

protected void Graph_Load()

{

decimal Plan, Base, Fore, max = 0;

DataSet dsResults = new DataSet();

dsResults = ForeCastBO.loadForeCast(Setinputvalues());

DataTable dt_Graph = new DataTable();

dt_Graph.Columns.Add("Division", typeof(String));

dt_Graph.Columns.Add("Plan", typeof(String));

dt_Graph.Columns.Add("Base", typeof(String));

dt_Graph.Columns.Add("ForeCast", typeof(String));

if (dsResults.Tables[0].Rows.Count > 0)

{

for (int i = 0; i < dsResults.Tables[0].Rows.Count; i++)

{

dt_Graph.Rows.Add(dsResults.Tables[0].Rows[i][3].ToString(), Decimal.Round(Convert.ToDecimal(dsResults.Tables[0].Rows[i][2].ToString())),

Decimal.Round(Convert.ToDecimal(dsResults.Tables[0].Rows[i][4].ToString())), Decimal.Round(Convert.ToDecimal(dsResults.Tables[0].Rows[i][5].ToString())));

Plan = Decimal.Round(Convert.ToDecimal(dsResults.Tables[0].Rows[i][2].ToString()));

Base = Decimal.Round(Convert.ToDecimal(dsResults.Tables[0].Rows[i][4].ToString()));

Fore = Decimal.Round(Convert.ToDecimal(dsResults.Tables[0].Rows[i][5].ToString()));

if (Plan > Base)

max = Plan;

else

max = Base;

if (Fore > max)

max = Fore;

}

RadChart1.DataSource = dt_Graph;

RadChart1.PlotArea.XAxis.DataLabelsColumn = dt_Graph.Rows[0].ToString();

int width;

width = 120 * (dt_Graph.Rows.Count);

RadChart1.Width = width;

RadChart1.Height = 400;

RadChart1.PlotArea.Appearance.FillStyle.MainColor = System.Drawing.Color.White;

RadChart1.PlotArea.Appearance.FillStyle.SecondColor = System.Drawing.Color.White;

RadChart1.PlotArea.YAxis.AutoScale = false;

RadChart1.PlotArea.YAxis.MaxValue = Convert.ToDouble(max);

RadChart1.PlotArea.YAxis.ScaleBreaks.MaxCount = 7;

RadChart1.PlotArea.XAxis.Appearance.TextAppearance.TextProperties.Color = System.Drawing.Color.Black;

RadChart1.PlotArea.Appearance.Dimensions.Margins.Bottom = Telerik.Charting.Styles.Unit.Pixel(100);

// bind to the datasource

RadChart1.DataBind();

}

Thanks,
Harin

Chart (Obsolete)

answered on 01 Apr 2011

2 answers

153 views

Is it possible to NOT processes uploaded files?

I'm looking for a way to prevent the automatic processing of uploaded files (moving them from the temp folder to the target folder, along with some custom processing that I put in the OnFileUploaded event) if the user doesn't explicitly ask for the files to be processed.

More detail on the scenario: The async uploader is on a page with multiple tabs. When the user wants to upload files, they click on a tab where the async uploader exists. The tabs are configured to do a postback. I think that if they were to select some files, then change their mind and move on to another tab (causing a postback), that the files shouldn't be processed. However, I can't see a way to prevent that from happening. I want to put a button there that lets the user "accept" the files and start processing them.

I'm looking for a supported, documented means to only process the files if explicitly fired off (via a button onclick handler, for example), and delete the temporary files on postback if the processing isn't requested. Is this possible/available?

Thanks.

AsyncUpload

answered on 01 Apr 2011

1 answer

969 views

Dropdown does not maintain its selected value when i come back to the page using "window.history.back(-1)"

Hi,
I am using the licenced version of Rad controls.
I have created a wizard using aspx pages.
on first page i have a combobox and next button. and on 2nd page i have a previous button. Previous button has code
"window.history.back(-1);" OnClientClicked event.
From first page I select item from combobox and click on next button. As a result request is redirected to 2nd page where i click on the previous button. So request is redirected to 1st page. And it shows the selected value in combobox.
But when i access the combobox selectedvalue it shows value at 0 index not the selected one.

Please suggest solution.

ComboBox

answered on 01 Apr 2011

4 answers

285 views

Ajax Callback Error on App Pool (Application) Restart

I'm thinking this is only something I need to worry about in my development environment, but I'd like to be sure, and if possible, find a way to supress the error.

If I have the page loaded with the Async Upload control on it, and I (1) make any change to the page, or (2) recycle the app pool, or (3) restart the application by changing the web.config, the next postback causes a huge alert window to open that shows the following:

RadUpload Ajax callback error. Source url returned invalid content:

<html>

<head>

<title>The resource cannot be found.</title>

<style>

body {font-family:"Verdana";font-weight:normal;font-size: .7em;color:black;}

p {font-family:"Verdana";font-weight:normal;color:black;margin-top: -5px}

b {font-family:"Verdana";font-weight:bold;color:black;margin-top: -5px}

H1 { font-family:"Verdana";font-weight:normal;font-size:18pt;color:red }

H2 { font-family:"Verdana";font-weight:normal;font-size:14pt;color:maroon }

pre {font-family:"Lucida Console";font-size: .9em}

.marker {font-weight: bold; color: black;text-decoration: none;}

.version {color: gray;}

.error {margin-bottom: 10px;}

.expandable { text-decoration:underline; font-weight:bold; color:navy; cursor:hand; }

</style>

</head>

<body bgcolor="white">

<span><H1>Server Error in '/CABS_Dev' Application.<hr width=100% size=1 color=silver></H1>

<h2> <i>The resource cannot be found.</i> </h2></span>

<font face="Arial, Helvetica, Geneva, SunSans-Regular, sans-serif ">

<b> Description: </b

>HTTP 404. The resource you are looking for (or one of its dependencies) could have been removed, had its name changed, or is temporarily unavailable.  Please review the following URL and make sure that it is spelled correctly.

<br><br>

<b> Requested URL: </b>/CABS_Dev/Telerik.RadUploadProgressHandler.ashx<br><br>

<hr width=100% size=1 color=silver>

<b>Version Information:</b> Microsoft .NET Framework Version:2.0.50727.4952; ASP.NET Version:2.0.50727.4955

</font>

</body>

</html>

<!--

[HttpException]: The file '/CABS_Dev/Telerik.RadUploadProgressHandler.ashx' does not exist.

at System.Web.UI.Util.CheckVirtualFileExists(VirtualPath virtualPath)

at System.Web.Compilation.BuildManager.GetVPathBuildResultInternal(VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile)

at System.Web.Compilation.BuildManager.GetVPathBuildResultWithNoAssert(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile)

at System.Web.Compilation.BuildManager.GetVPathBuildResult(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile)

at System.Web.UI.SimpleHandlerFactory.System.Web.IHttpHandlerFactory2.GetHandler(HttpContext context, String requestType, VirtualPath virtualPath, String physicalPath)

at System.Web.HttpApplication.MapHttpHandler(HttpContext context, String requestType, VirtualPath path, String pathTranslated, Boolean useAppConfig)

at System.Web.HttpApplication.MapHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()

at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

-->

../Telerik.RadUploadProgressHandler.ashx?RadUrid=ddbc8bc9-8901-4652-8b85-9c7590f67636

Did you register the RadUploadProgressHandler in web.config?

Please, see the help for more details: RadUpload for ASP.NET Ajax - Configuration - RadUploadProgressHandler.

I didn't even have to upload any files. If i just load the page, go to the tab that has the async upload control in it, then click on another tab (causing a postback) after doing one of the above actions, I get this error.

Any way to trap/check/supress this?

Thank you.

AsyncUpload