/// <summary>
/// INotifyCollectionChanged.CollectionChanged handler for updating DataGrid.SelectedItems when the source list changes
/// </summary>
private static void UpdateDataGridsOnSourceCollectionChanged(object source, NotifyCollectionChangedEventArgs collectionChangedArgs)
{
DataGridsAndInitiatedSelectionChange sourceListInfo = DataGridMultipleSelection.selectedItemsSources[source.GetHashCode()];
// For each DataGrid that is bound to this list, is alive, and did not initate selection changes, update its selection
sourceListInfo.InitiatedSelectionChange = true;
IList sourceList = source as IList;
Debug.Assert(sourceList != null, "SelectedItemsSource must be of type IList");
DataGrid dataGrid = null;
foreach (WeakReference dataGridReference in sourceListInfo.BoundDataGridReferences)
{
if (dataGridReference.IsAlive && !DataGridMultipleSelection.GetInitiatedSelectionChange(dataGridReference.Target as DataGrid))
{
dataGrid = dataGridReference.Target as DataGrid;
UpdateDataGrid(dataGrid, sourceList, collectionChangedArgs);
}
}
sourceListInfo.InitiatedSelectionChange = false;
}
