ComboBox loses list items after postback

[Vijaya Sankar]

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.

 

 

 

[Kate]

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