[Solved] Prevent a RadGrid Group from Collapsing

[Suresh Mishra]

This is a two part question:

1.  How do can show the group header and yet prevent the group from collapsing?

2.  I format my own header and footer for the RadGrid by inserting rows in the ItemCreated event of the rad grid. If I do this, the original headeing for the RadGrid does not appear.  However, if the collpase header icon on the group header is clicked so hte group collapses, the radgrid header I created disappears and so does the footer.  How can I prevent this from happening?  Can this be prevented, is a call back is triggered?  If yes, then how do I trigger a call back when collapse / expand icon in the group header is clicked.

Thanks.

Suresh

[Shinu]

Hi,

Try setting the GroupsDefaultExpanded property of the MasterTableView property to True. This will set the groups in expanded mode

ASPX:

 <MasterTableView GroupsDefaultExpanded="true">
</MasterTableView >

To hide the Group Expand/Column use the following code snippet
C#

// to hide the Group Expand/Collapse column

 protected void RadGrid2_ColumnCreated(object sender, GridColumnCreatedEventArgs e)
    {
        if (e.Column is GridGroupSplitterColumn)
        {
            e.Column.Display = false;
        }
    }

Thanks,
Shinu

[Suresh Mishra]

Shinu,

Thanks for your reply.  However, the code you suggested did not work for preventing the user from collapsing the group.  Here is the vb code I used:

 

Protected Sub RadGrid1_ColumnCreated(ByVal sender As Object, ByVal e As Telerik.Web.UI.GridColumnCreatedEventArgs) Handles RadGrid1.ColumnCreated

 

 

If e.Column.ColumnType = "GridGroupSplitterColumn" Or _

 

e.Column.ColumnType =

"GridExpandColumn" Then

 

e.Column.Display =

False

 

 

End If

 

 

End Sub

 

Suresh

[Martin]

Hello Suresh,

Please check the following help topic:

Preventing groups expansion by hiding the expand/collapse images

I hope this helps.

Regards,
Martin
the Telerik team

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