[ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection.Parameter name: index] System.Collections.ArrayList.get_Item(Int32 index) +10064164 System.Web.UI.StateManagedCollection.System.Collections.IList.get_Item(Int32 index) +17 Telerik.Web.UI.ControlItemCollection.get_Item(Int32 index) +22 Telerik.Web.UI.ClientStateLogPlayer`1.Remove(ControlItemCollection items, Int32 index) +58 Telerik.Web.UI.ClientStateLogPlayer`1.Play(ClientStateLogEntry entry) +453 Telerik.Web.UI.ClientStateLogPlayer`1.Play(IEnumerable`1 clientStateLogEntry) +165 Telerik.Web.UI.RadListBox.LoadClientState(RadListBoxClientState clientState) +66 Telerik.Web.UI.RadListBox.LoadPostData(String postDataKey, NameValueCollection postCollection) +230 System.Web.UI.Page.ProcessPostData(NameValueCollection postData, Boolean fBeforeLoad) +945 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2071<td><telerik:RadListBox ID="lstAvailableItems" ButtonSettings-Position="Right" EmptyMessage="None"AllowTransferOnDoubleClick="true" EnableDragAndDrop="true" PersistClientChanges="true" ViewStateMode="Disabled"Height="100px" AllowTransfer="true" TransferMode="Move" TransferToID="lstSelectedItems" SelectionMode="Single"Width="200px" runat="server"> </telerik:RadListBox> </td> <td> <telerik:RadListBox ID="lstSelectedItems" AllowTransferOnDoubleClick="true" EmptyMessage="None" PersistClientChanges="true" EnableDragAndDrop="true" Height="100px" Width="200px" SelectionMode="Single" ViewStateMode="Disabled" runat="server"> </telerik:RadListBox></td>
Hi, how can I disable de Zebra effect in the radtreelist. Is there any setting like "<ClientSettings EnableAlternatingItems="false">" of the RAdGrid?
If not, How can I disable the Zebra Effect?
Thanks
Alejandro

Hello-
I am using RadScheduler with the following options:
<telerik:RadScheduler runat="server" ID="RadSchedulerControl"
SelectedView="MonthView"
OverflowBehavior="Expand"
ReadOnly="true"
ShowHoursColumn="false"
ShowViewTabs="false"
MonthView-VisibleAppointmentsPerDay="4"
NumberOfHoveredRows="0"
>
<AppointmentTemplate>
<a id="calItem" class='<%#Eval("ButtonClass")%> tipme' title="" href='<%#Eval("SubjectLink")%>' data-tooltipurl='<%# Eval("ToolTipUrl")%>' style="width:100%;white-space:inherit;" ><%# Eval("Subject")%></a> <!--white-space:inherit allows button text wrap-->
</AppointmentTemplate>
<ExportSettings>
<Pdf StyleSheets="http://localhost:58582/styles/site.css, http://localhost:58582/styles/bootstrap.min.pagereports.css"/>
</ExportSettings>
</telerik:RadScheduler>
The issue is that appointments are not using the styles listed in ExportSettings. I know this because they are the wrong color and appointment text is truncated. I have tried both relative paths and full paths. What do I need to do differently? Thanks!
Ben

Hi,
I'm using RadAsyncUpload to upload multiple files.
when uploading i can see in fiddler extra data on the headers of the AJAX upload.
The file are uploaded correctly buy he problem is that I have a firewall that needs to get the correct filename that is uploaded and not a generic "blob"
Content-Disposition: form-data; name="%%File.48257279001171c9.2c36671da7f1b6c9482575de002e1f14.$Body.0.3D8"; filename="blob"
Content-Type: image/png
------WebKitFormBoundaryW0NQVOkdrfkYGWV3--
additional data:
1. using the older radupload (which does not support multiple files to be uploaded) sets the right name
2. we inspected the telerik dll and noticed that there are specific code lines that set the filename to blob.
Can you please advise on solution to the name setting ?
Thank you
Hi,
I'm using the property ClickToOpen="true" in the RadMenu, but it is not working. When I click, the menu doesn't open. When not using the ClickToOpen="true" the menu works correctly. I checked the browser console and no error is logged.
<telerik:RadMenu RenderMode="Lightweight" runat="server" ID="RadMenu4" Style="z-index: 7" EnableRoundedCorners="true" ShowToggleHandle="true" EnableImagePreloading="true" EnableShadows="true" EnableTextHTMLEncoding="true" CausesValidation="False" OnItemDataBound="RadMenu4_ItemDataBound" ClickToOpen="true"> <DataBindings> <telerik:RadMenuItemBinding DataMember="Menu" TextField="PageTitle" NavigateUrlField="ControllerURL" /> </DataBindings> </telerik:RadMenu>
Version: 2016.3.1018.45
Thanks for your help.
Hi guys,
I'm having trouble getting some kind of a feedback after the "Save" button.I've disabled the dialogbox with the 2 options and directly save the image on my server and it works fine, but I'm unable to set a label value to something like "Image saved" or whatever. I leave my javascript for the toggle. Another option would be to redirect my user whatever page, but can't get it done either.
Any ideas?
Thanks!
function OnClientCommandExecuting(imEditor, eventArgs) {
if (eventArgs.get_commandName() == 'Save') {
imEditor.saveImageOnServer('', true);
//Prevent the buil-in Save dialog to pop up
imEditor.setToggleState('Save', false);
imEditor.saveImageOnServer('', true);
eventArgs.set_cancel(true);
}
}
Hi,
I can't export Excel file from Spreadsheet ,the js error message is "Error: Unable to get property '2' of undefined or null reference".How should I solve this question?
Hi,
How do I add custom buttons that can call my functions in addition to the buttons available in Image Editor? I tried to add this way:
<telerik:RadImageEditor ID="imgEditor" runat="server" OnImageLoading="RadImgEdt_ImageLoading"
OnImageSaving="RadImgEdt_ImageSaving" OnClientSaved="disableTools">
<Tools>
<telerik:ImageEditorToolGroup>
<telerik:ImageEditorTool CommandName="Custom1" />
<telerik:ImageEditorTool CommandName="Custom2" />
</telerik:ImageEditorToolGroup>
</Tools>
</telerik:RadImageEditor>
But this removed the standard default buttons.
