/// <summary>
/// Coercion call back for clip property which ensures that the cell overlapping with frozen
/// column gets clipped appropriately.
/// </summary>
/// <param name="d"></param>
/// <param name="baseValue"></param>
/// <returns></returns>
private static object OnCoerceClip(DependencyObject d, object baseValue)
{
DataGridCell cell = (DataGridCell)d;
Geometry geometry = baseValue as Geometry;
Geometry frozenGeometry = DataGridHelper.GetFrozenClipForCell(cell);
if (frozenGeometry != null)
{
if (geometry == null)
{
return(frozenGeometry);
}
geometry = new CombinedGeometry(GeometryCombineMode.Intersect, geometry, frozenGeometry);
}
return(geometry);
}