Don't Allow Group Collapse

[Ryan]

I have a RadGrid that groups data based on a column's value, and would like the user to not be allowed to expand/collapse that group (I'm essentially grouping only so I can have a group title).  My RadGrid is defined as follows:

<!-- RadGrid for Articles -->
<telerik:RadGrid runat="server" ID="rgArticles" AutoGenerateColumns="false" AllowSorting="false" GroupingEnabled="true">
    <MasterTableView ShowHeader="false">

        <%-- Columns --%>
        <Columns>
            <%-- Title --%>
            <telerik:GridTemplateColumn>
                <ItemTemplate><a href="<%#Eval("EditionLocation")%>" title="<%#Eval("Summary")%>" target="_blank"><%#Eval("Title")%> (p<%#Eval("EditionPages")%>)</a></ItemTemplate>
            </telerik:GridTemplateColumn>
        </Columns>

        <%-- GroupByExpressions --%>
        <GroupByExpressions>
            <telerik:GridGroupByExpression>
                <SelectFields>
                    <telerik:GridGroupByField FieldName="Edition" HeaderValueSeparator="Edition: " HeaderText="<%=String.Empty %>" />
                </SelectFields>
                <GroupByFields>
                    <telerik:GridGroupByField FieldName="Edition" />
                </GroupByFields>
            </telerik:GridGroupByExpression>
        </GroupByExpressions>

    </MasterTableView>
</telerik:RadGrid>

How can I make this work?  Thank you!

[Schlurk]

You could try this:

protected void RadGrid1_ItemCreated(object sender, GridItemEventArgs e)
{
   if (e.Item is GridGroupHeaderItem)
   {
       GridGroupHeaderItem item = (GridGroupHeaderItem)e.Item;
       DataRowView groupDataRow = (DataRowView)e.Item.DataItem;
       (item.Cells[0].Controls[0] as Button).Enabled = false;
   }
}

This will disable your button, and if you want to remove the button completely (aka remove the image etc.) you would do:

protected void RadGrid1_ItemCreated(object sender, GridItemEventArgs e)
{
   if (e.Item is GridGroupHeaderItem)
   {
       GridGroupHeaderItem item = (GridGroupHeaderItem)e.Item;
       DataRowView groupDataRow = (DataRowView)e.Item.DataItem;
       item.Cells[0].Controls.Clear();
   }
}

Hope this helps!

[Ryan]

That did the trick!  Thanks for the prompt reply!

[Mati]

Hi,

 

Could you tell me how I can add a custom css class to the expand buttons on each group? Or how to get in client side all the expand buttons have been disabled from server side?

 

Thanks in advance!