Rad grid group ajax

[Ron]

I'm using rad grid grouping and when expanding groups they should be ajaxified but for some reasons it's still doing a full postback.
Can you help? Here is the code:

<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">
                       <AjaxSettings>
                           <telerik:AjaxSetting AjaxControlID="grdActivity">
                               <UpdatedControls>
                                   <telerik:AjaxUpdatedControl ControlID="grdActivity" LoadingPanelID="RadAjaxLoadingPanel1" />
                               </UpdatedControls>
                           </telerik:AjaxSetting>
                       </AjaxSettings>
                   </telerik:RadAjaxManager>
                   <telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" runat="server">
                   </telerik:RadAjaxLoadingPanel>
                  <div id="RecentActivityContent" class="QuickViewContent">
                     <telerik:RadGrid runat="server" ID="grdActivity" DataSourceID="objActivity" Width="360px"
                      GridLines="Horizontal" Skin="Sunset" ShowHeader="false" >
                      <HeaderStyle CssClass="HistoryGridHeader" />
                       <PagerStyle Mode="NextPrevNumericAndAdvanced"></PagerStyle>
                       <MasterTableView AutoGenerateColumns="false" CssClass="GridRecentActivity">
                           <GroupByExpressions>
                               <telerik:GridGroupByExpression>
                                   <SelectFields>
                                       <telerik:GridGroupByField FieldAlias="Date" FieldName="Date" FormatString="{0:D}"
                                           HeaderValueSeparator=" from date: " />
                                   </SelectFields>
                                   <GroupByFields>
                                       <telerik:GridGroupByField FieldName="Date" SortOrder="Descending" >
                                       </telerik:GridGroupByField>
                                   </GroupByFields>
                               </telerik:GridGroupByExpression>
                           </GroupByExpressions>
                           <Columns>
                               <telerik:GridTemplateColumn DataField="Message" HeaderText="Message" UniqueName="Message">
                                   <ItemTemplate>
                                       <asp:Label runat="server" id="Label1" Text='<%# Eval("Type") %>' CssClass="FirstColumn" />   -
                                       <asp:Label runat="server" id="lblMessage" Text='<%# Eval("Message") %>' />
                                   </ItemTemplate>
                               </telerik:GridTemplateColumn>
                           </Columns>
                       </MasterTableView>
                       <ClientSettings ReorderColumnsOnClient="True" AllowDragToGroup="True" AllowColumnsReorder="True">
                           <Selecting AllowRowSelect="True"></Selecting>
                           <Resizing AllowRowResize="True" AllowColumnResize="True" EnableRealTimeResize="True"
                           ResizeGridOnColumnResize="False"></Resizing>
           </ClientSettings>
                   </telerik:RadGrid>

Thanks,
Ron.

[Shinu]

Hello Ron,

Try setting GroupLoadMode of the grid as Client.
aspx:

<MasterTableView   GroupLoadMode="Client" >

-Shinu.