{description}
{excerpt}Groups or outlines the columns contained within the area.{excerpt}
{signature:C#}
 public void GroupColumns(boolean collapsed)
{signature}{signature:vb.net}
Public Sub GroupColumns(ByVal collapsed As Boolean)
{signature}
{parameters}
{param:collapsed}{{true}} if the group is collapsed, {{false}} if not.{param}
{example}{code:csharp|title=C#}
a.GroupColumns(true);{code}
{code:vbnet|title=vb.net}
a.GroupColumns(True){code}

{example}
{scrollbar}