Hi,

I am using RadAjaxPanel in master page as shown below:

<telerik:RadAjaxPanel ID="rapContents" runat="server" EnableAJAX="true" OnAjaxSettingCreating="rapContents_AjaxSettingCreating">

 

 

 

<asp:ContentPlaceHolder ID="phContents" runat="server">

 

 

 

</asp:ContentPlaceHolder>

 

 

 

</telerik:RadAjaxPanel>

 

And in the content page I used a radcombobox, the code is below:

 

 

<telerik:RadComboBox ID="rcbSP" runat="server" DataValueField="ID" DataTextField="Name"

 

 

 

EmptyMessage="None" HighlightTemplatedItems="true" AllowCustomText="true" Width="180"

 

 

 

OnClientDropDownClosed="onDropDownClosing"><ItemTemplate>

 

 

 

<div onclick="StopPropagation(event)" class="combo-item-template">

 

 

 

<asp:CheckBox runat="server" ID="chkSP" onclick="onCheckBoxClick(this, 'SP')" />

 

 

 

<asp:Label runat="server" ID="lblSP" AssociatedControlID="chkSP">

 

<%

 

# Eval("Name")%>

 

 

 

 

</asp:Label>

 

 

 

</div>

 

 

 

</ItemTemplate>

 

 

 

</telerik:RadComboBox>

 

 

 

//Combobox Binding - only binding first time the page loads

 

 

 

this.rcbSP.DataSource = LU_ServerPurposeBLL.GetList(false);

 

 

 

 

this.rcbSP.DataBind();

 

Now my issue is, when I have a postback in the content page, the data (list items) in the combobox is lost and displaying "None" (the empty message).

Please help me in resolving the issue. Thanks in advance.

 

 

 

Hello Vijaya Sankar,

Did you try to set EnableAjax to false and see how the control behaves? In case this does not help and since it is a customized scenario I would suggest that you open a support ticket and send us a simple runnable project with the reproduced issue so we can test it locally and help you out.

Regards,
Kate
the Telerik team