// update position of child grids when column widths/etc change
//
// when rows are added, removed, or resized, move child grids so they
// stay in their proper position.
//
override protected void OnGridChanged(object sender, GridChangedEventArgs e)
{
// always call base implementation
base.OnGridChanged(sender, e);
// reset data if child column became invalid
if (_colChild != null && !Cols.Contains(_colChild))
{
ResetChildren();
}
// update positions after adding/removing/resizing rows/columns
if (e.GridChangedType == GridChangedTypeEnum.GridChanged ||
e.GridChangedType == GridChangedTypeEnum.RowAdded ||
e.GridChangedType == GridChangedTypeEnum.RowRemoved)
{
UpdateChildren();
}
}