Occurs when the band's width is changed.
public event BandEventHandler BandWidthChanged
Public Event BandWidthChanged As BandEventHandler
The BandWidthChanged event's data class is DevExpress.XtraTreeList.BandEventArgs.
The BandWidthChanged event occurs in the following cases:
- the band's width has been modified by dragging the band header's right edge;
- the band's width has been changed by setting the TreeListBand.Width property.
This event is not fired when the TreeListOptionsView.AutoWidth property is set to true and the band's width is changed as a result of modifying the TreeList's width.