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.