Raising or Firing ExpandGroup Event Programmatically

[Hector]

I have defined a group in a RadGridView using the following code:

Dim groupingDescriptor As New tlrkDt.GroupDescriptor
groupingDescriptor.GroupNames.Add("Period", System.ComponentModel.ListSortDirection.Ascending)
Me.rgvBids.GroupDescriptors.Add(groupingDescriptor)

Dim sortDescriptor As New tlrkDt.SortDescriptor
sortDescriptor.PropertyName = "Period"
Me.rgvBids.SortDescriptors.Add(sortDescriptor)

The user is able to expand and collapse the group by clicking on the arrow just before the group header. However, the user has requested to be able to expand/collapse the group by clicking on the group header itself.

How can I programmatically raise the event necessary for a RadGridView's group to expand and collapse when the user clicks on the header (not just the arrow)?

Thanks in advance for any help you may provide,

Hector

[Svett]

Hi Hector,

You can use the CellClick event of RadGridView to achieve the desired behavior. The following sample code snippet demonstrates how you can do it:

C#:

private void radGridView1_CellClick(object sender, GridViewCellEventArgs e)
{
    GridGroupContentCellElement contentCell = sender as GridGroupContentCellElement;

    if (contentCell != null)
    {
        contentCell.RowInfo.IsExpanded = !contentCell.RowInfo.IsExpanded;
    }
}

VB.NET:

Private Sub radGridView1_CellClick(sender As Object, e As GridViewCellEventArgs)
    Dim contentCell As GridGroupContentCellElement = TryCast(sender, GridGroupContentCellElement)

    If contentCell IsNot Nothing Then
        contentCell.RowInfo.IsExpanded = Not contentCell.RowInfo.IsExpanded
    End If
End Sub

Best wishes,
Svett
the Telerik team