[Solved] Header Context Menu not available after postback

[Rajeev]

Hi --

I have a RadGrid control with EnableHeaderContextMenu="true" on the MasterTableView.  The header context menu works great on initial page load, but after a postback (caused by sorting or any other grid related event), the context menu no longer works.  (After a postback, right-clicking brings up the browser's context menu instead of the RadGrid context menu.)

I do have a RadAjaxManager on my page, and this issue could be related to that.  

Can someone help me figure out what I need to do to make the header context menu work after a postback?  Full markup is below.

Thanks,
Rajeev

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<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="IconResultsDetailsView.ascx.cs" Inherits="OfficeUI.Controls.SearchResults.IconResultsDetailsView" %>
<%@ Register Src="~/Controls/SearchResults/FinalIconImagesInSearchResults.ascx" TagName="FinalIconImagesInSearchResults" TagPrefix="uc" %>
<telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanelIconResultsDetailsView" runat="server" />

<telerik:RadAjaxManagerProxy ID="RadAjaxManagerProxy" runat="server">
    <AjaxSettings>
        <telerik:AjaxSetting AjaxControlID="RadGridIconResults">
            <UpdatedControls>
                <telerik:AjaxUpdatedControl ControlID="RadGridIconResults" LoadingPanelID="RadAjaxLoadingPanelIconResultsDetailsView" />
                <telerik:AjaxUpdatedControl ControlID="BulkEditDialog" />
            </UpdatedControls>
        </telerik:AjaxSetting>
        <telerik:AjaxSetting AjaxControlID="BulkEditDialog">
            <UpdatedControls>
                <telerik:AjaxUpdatedControl ControlID="BulkEditDialog" />
            </UpdatedControls>
        </telerik:AjaxSetting>
    </AjaxSettings>
</telerik:RadAjaxManagerProxy>

<telerik:RadGrid
    ID="RadGridIconResults"
    runat="server"
    AllowFilteringByColumn="True"
    AllowPaging="True"
    AllowSorting="True"
    CssClass="RadGridIconResults GridForIconsTab"
    AllowMultiRowSelection="True"
    EnableHeaderContextMenu="True"
    OnItemDataBound="RadGridIconResults_ItemDataBound"
    OnNeedDataSource="RadGridIconResults_NeedDataSource"
    OnItemCreated="RadGridIconResults_ItemCreated"
    AutoGenerateColumns="False"
    PageSize="200"
    >

    <PagerStyle
        Mode="NextPrevAndNumeric"
        Position="TopAndBottom"
        FirstPageImageUrl="/Images/Transparent1x1.png"
        LastPageImageUrl="/Images/Transparent1x1.png"
        PrevPageImageUrl="/Images/Transparent1x1.png"
        NextPageImageUrl="/Images/Transparent1x1.png"
        PrevPageText="< prev"
        NextPageText="next >"
        ShowPagerText="true"
        EnableSEOPaging="true"
        />

    <ExportSettings ExportOnlyData="true" IgnorePaging="true" OpenInNewWindow="true" Excel-Format="ExcelML" />
    <ClientSettings>
        <Scrolling AllowScroll="false" />
        <Selecting AllowRowSelect="True" UseClientSelectColumnOnly="True" EnableDragToSelectRows="False" />
    </ClientSettings>
    <GroupingSettings CaseSensitive="false" />
    <MasterTableView DataKeyNames="BugNumber" CommandItemDisplay="Top" UseAllDataFields="True" EnableHeaderContextMenu="true">
        <Columns>
            <telerik:GridClientSelectColumn UniqueName="ClientSelectColumn" HeaderText="Select" />

            <telerik:GridImageColumn HeaderText="" UniqueName="Parsed" ShowSortIcon="true" ShowFilterIcon="false" Groupable="False" AllowSorting="true" AllowFiltering="false" />

            <telerik:GridBoundColumn DataField="BugNumber" HeaderText="Bug #" EmptyDataText="none" AutoPostBackOnFilter="true" CurrentFilterFunction="Contains" ShowFilterIcon="false" DataFormatString="<nobr>{0}</nobr>">
                <HeaderStyle Wrap="false" />
            </telerik:GridBoundColumn>

        </Columns>
        <RowIndicatorColumn>
            <HeaderStyle Width="20px" />
        </RowIndicatorColumn>
        <ExpandCollapseColumn>
            <HeaderStyle Width="20px" />
        </ExpandCollapseColumn>
    </MasterTableView>
    <ItemStyle Height="45px" BackColor="#EFF3F7" />
    <AlternatingItemStyle Height="45px" />
</telerik:RadGrid>

<telerik:RadWindow ID="BulkEditDialog" runat="server"
    Behaviors="Move, Close, Resize" Width="650px" Height="400px" Modal="True"
    Title="Review" VisibleStatusbar="False" OnClientClose="OnClientWindowClose" >
</telerik:RadWindow>

[Rajeev]

Neeeeeever mind!  Somehow it magically started working again, and now my header context menu is available even after postback.  I don't know what I did, but I'm not worrying about it!