private void OnAttachToDataGridRow(DataGridRow dgr)
{
int index = dgr.GetIndex() + 1;
if (AssociatedObject != null)
{
AssociatedObject.Text = index.ToString();
}
// Hook into the DataGridRow
BindingOperations.SetBinding(this, TargetProperty, new Binding("Item")
{
Source = dgr
});
// Hook into the DataGrid owner.
DataGrid dg = dgr.GetParent <DataGrid>();
dg.RowEditEnding += DgRowEditEnding;
var cv = CollectionViewSource.GetDefaultView(dg.ItemsSource);
if (cv != null)
{
cv.CollectionChanged += CvCollectionChanged;
}
}
/// <summary>
/// Called when the behavior is being detached from its AssociatedObject, but before it has actually occurred.
/// </summary>
protected override void OnDetaching()
{
if (this.DataGridRow != null)
{
DataGrid dg = DataGridRow.GetParent<DataGrid>();
var cv = CollectionViewSource.GetDefaultView(dg.ItemsSource);
if (cv != null)
cv.CollectionChanged -= CvCollectionChanged;
dg.RowEditEnding -= DgRowEditEnding;
}
base.OnDetaching();
}