I'm having a very intermittent problem with two list boxes with "allow transfer" enabled. The first time the page loads, sometimes, the left side list box with all the selectable items overflows the bottom of the container and the right one gets an extra line before the title and before the list items. If I move an item in either direction the page corrects itself and displays correctly. Then after that, I can log out of the app, open it in a new browser window and no problems. But the first time in, particularly after recycling IIS I have this problem. See attached screenshots and HTML below. The postback is for sorting.
Thanks
Rodney
<asp:UpdatePanel runat="server" ID="updPnlRoles"> <ContentTemplate> <telerik:RadListBox runat="server" ID="rlbxAvailableRoles" Height="210" Width="230" AllowTransfer="true" TransferToID="rlbxSelectedRoles" ButtonSettings-AreaWidth="35px" ButtonSettings-ShowTransferAll="false" AllowTransferOnDoubleClick="true" SelectionMode="Multiple" EnableDragAndDrop="true" AutoPostBackOnTransfer="true"> <HeaderTemplate> <h3>Available Roles</h3> </HeaderTemplate> </telerik:RadListBox> <telerik:RadListBox runat="server" ID="rlbxSelectedRoles" Height="210" Width="190" EmptyMessage="Select at least one role" AllowTransferOnDoubleClick="true" SelectionMode="Multiple" EnableDragAndDrop="true" AutoPostBackOnTransfer="true"> <HeaderTemplate> <h3>Selected Roles</h3> </HeaderTemplate> </telerik:RadListBox> <asp:CustomValidator ID="cvSelectedRoles" runat="server" ErrorMessage="You must have at least 1 role" ClientValidationFunction="cvSelectedRoleVal" ControlToValidate="rlbxSelectedRoles" ValidateEmptyText="true" CssClass="validator" ValidationGroup="userValidations"> </asp:CustomValidator> </ContentTemplate></asp:UpdatePanel>
How check if RadComboBox1.Items.Count = 0 on PageLoad?
Using ItemsRequested to DataBind RadComboBox and DataBound to Footer


Hello All,
I need to build a Hierarchical Grid where the detail grid will have different number of columns based on the parent row which was got expanded.
Is this possible in telerik ? can you please provide with some same code.
Example
Row1
ChildTable col1 col2
Row2
ChildTable col1 col2 col3
Row3
ChildTable col1
Many Thanks
Amjath
Hi,
How can i do to synchronise multiple HtmlChart ?
I have 4 charts, each can start or end on a different time, but i must start the graphics at te same time
See in the attached file (Graphics_Snchro.png) for example, the 2 graphics must start at 10:27:27 and stop at 10:57:27.
The XAxis MinDateValue and MaxDateValue are good, but no on the graphics itself... WHY ?
Thank for your help

After upgrading from 2015.3.930.45 to 2016.2.607.45 I get an error when using RadAjaxManager.ResponseScripts.Add
If I rollback the upgrade, it works fine.
I've tried using ScriptManager.RegisterStartupScript instead of RadAjaxManager.ResponseScripts.Add and I don't get an error, but it still doesn't work.
Attached is the error when scripts are combined and when they are not.
Any ideas? Again, it works fine if I rollback the update.
Thanks,
Sam
Hello,
I have a web page I'm working on that is using a tree control and it displays check boxes for the number of years in the data. The year range is 1970-2016.
example:
70 71 72 73 74 75 ....
Test1
-->Test2 cb cb cb cb cb...
-->Test3 cb cb cb cb cb...
I'm running out of room on my page. Is there a control that will work better then a treeview control and a static gif file listing out the years?
Thank you
I have telerik controls 2013 Q1 Net 45.
Hy
i am using RadhtmlChart and i want to fill RadhtmlChart programmatically using simple SQL request.
thank you very much
Hello,
I bind my rad grid client-side.
Here I am trying to export grid data to excel on button click event from server side.
However, exporting is not working.
So, could someone suggest any workaround to achieve above case?
Thanks in advance.
Rahul