RadGrid Hiding Expand when no records are available problems

[IT]

HI all

I'm following the example available here

http://www.telerik.com/help/aspnet-ajax/grdhideexpandcollapseimageswhennorecords.html

The problem is that when i test on my page it doesnt quite work in the way i am expecting

My grid is initially filtered by a dropdown combo box (RadCombo actually ) therefore a postback is required.


When i change options in the drop down the grid is shown with all expand images showing

If i select any expand images the grid refreshes but this time hides all the expand images apart from the ones which actually have detail records.

How can i modify this so that when the grid is refreshed based on a selection from the combo box , i get the response i 'm having (i.e hiding the expand buttons when no detail records are available)

Thanks again folks


so my code is the following

   protected void RadGridRelatedStyles_PreRender(object sender, EventArgs e)
    {


            HideExpandColumnRecursive(RadGridRelatedStyles.MasterTableView);

    }
    public void HideExpandColumnRecursive(GridTableView tableView)
    {
        GridItem[] nestedViewItems = tableView.GetItems(GridItemType.NestedView);
        foreach (GridNestedViewItem nestedViewItem in nestedViewItems)
        {
            foreach (GridTableView nestedView in nestedViewItem.NestedTableViews)
            {
                if (nestedView.Items.Count == 0)
                {
                    TableCell cell = nestedView.ParentItem["ExpandColumn"];
                    cell.Controls[0].Visible = false;
                    nestedViewItem.Visible = false;
                }
                if (nestedView.HasDetailTables)
                {
                    HideExpandColumnRecursive(nestedView);
                }
            }
        }
    }
    protected void RadComboBStyles_SelectedIndexChanged(object o, RadComboBoxSelectedIndexChangedEventArgs e)
    {
        HideExpandColumnRecursive(RadGridRelatedStyles.MasterTableView);

    }

and the main settings for the grid are

<telerik:RadGrid ID="RadGridRelatedStyles" OnPreRender="RadGridRelatedStyles_PreRender" runat="server" AutoGenerateColumns="False"
        DataSourceID="SqlGroupStyle" GridLines="None" Skin="Gray" Width="250px" PageSize="8">
        <HeaderContextMenu EnableTheming="True" Skin="Gray">
            <CollapseAnimation Duration="200" Type="OutQuint" />
        </HeaderContextMenu>
        <MasterTableView Caption="Related Group Styles" DataKeyNames="StyleTypeID"
         HierarchyLoadMode="ServerBind" DataSourceID="SqlGroupStyle"
         NoMasterRecordsText="No Available Group Styles">

Thanks guys/Gals

[Yavor]

Hello Brian,

Can you please set the hierarchyLoadMode to client, and see if the images are hidden as expected?

Sincerely yours,
Yavor
the Telerik team

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[IT]

wow as simple as that

Thanks alot