// Token: 0x06005E09 RID: 24073 RVA: 0x001A7084 File Offset: 0x001A5284
private static void ColumnsPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
GridViewRowPresenterBase gridViewRowPresenterBase = (GridViewRowPresenterBase)d;
GridViewColumnCollection gridViewColumnCollection = (GridViewColumnCollection)e.OldValue;
if (gridViewColumnCollection != null)
{
InternalCollectionChangedEventManager.RemoveHandler(gridViewColumnCollection, new EventHandler <NotifyCollectionChangedEventArgs>(gridViewRowPresenterBase.ColumnCollectionChanged));
if (!gridViewColumnCollection.InViewMode && gridViewColumnCollection.Owner == gridViewRowPresenterBase.GetStableAncester())
{
gridViewColumnCollection.Owner = null;
}
}
GridViewColumnCollection gridViewColumnCollection2 = (GridViewColumnCollection)e.NewValue;
if (gridViewColumnCollection2 != null)
{
InternalCollectionChangedEventManager.AddHandler(gridViewColumnCollection2, new EventHandler <NotifyCollectionChangedEventArgs>(gridViewRowPresenterBase.ColumnCollectionChanged));
if (!gridViewColumnCollection2.InViewMode && gridViewColumnCollection2.Owner == null)
{
gridViewColumnCollection2.Owner = gridViewRowPresenterBase.GetStableAncester();
}
}
gridViewRowPresenterBase.NeedUpdateVisualTree = true;
gridViewRowPresenterBase.InvalidateMeasure();
}
//-------------------------------------------------------------------
//
// Private Methods / Properties / Fields
//
//-------------------------------------------------------------------
#region Private Methods / Properties / Fields
// Property invalidation callback invoked when ColumnCollectionProperty is invalidated
private static void ColumnsPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
GridViewRowPresenterBase c = (GridViewRowPresenterBase)d;
GridViewColumnCollection oldCollection = (GridViewColumnCollection)e.OldValue;
if (oldCollection != null)
{
InternalCollectionChangedEventManager.RemoveHandler(oldCollection, c.ColumnCollectionChanged);
// NOTE:
// If the collection is NOT in view mode (a.k.a owner isn't GridView),
// RowPresenter is responsible to be or to find one to be the collection's mentor.
//
if (!oldCollection.InViewMode && oldCollection.Owner == c.GetStableAncester())
{
oldCollection.Owner = null;
}
}
GridViewColumnCollection newCollection = (GridViewColumnCollection)e.NewValue;
if (newCollection != null)
{
InternalCollectionChangedEventManager.AddHandler(newCollection, c.ColumnCollectionChanged);
// Similar to what we do to oldCollection. But, of course, in a reverse way.
if (!newCollection.InViewMode && newCollection.Owner == null)
{
newCollection.Owner = c.GetStableAncester();
}
}
c.NeedUpdateVisualTree = true;
c.InvalidateMeasure();
}
