private static void OnAnyGotFocus(object sender, RoutedEventArgs e)
{
DataGridCell cell = DataGridHelper.FindVisualParent <DataGridCell>(e.OriginalSource as UIElement);
if (cell != null && cell == sender)
{
DataGrid owner = cell.DataGridOwner;
if (owner != null)
{
owner.FocusedCell = cell;
}
}
}
private static void OnAnyLostFocus(object sender, RoutedEventArgs e)
{
// Get the ancestor cell of old focused element.
// Set DataGrid.FocusedCell to null, if the cell doesn't
// have keyboard focus.
DataGridCell cell = DataGridHelper.FindVisualParent <DataGridCell>(e.OriginalSource as UIElement);
if (cell != null && cell == sender)
{
DataGrid owner = cell.DataGridOwner;
if (owner != null && !cell.IsKeyboardFocusWithin && owner.FocusedCell == cell)
{
owner.FocusedCell = null;
}
}
}
/// <summary>
/// Searchs up the visual parent chain from the given element until
/// a DataGridRow element is found.
/// </summary>
/// <param name="element">The descendent of a DataGridRow.</param>
/// <returns>
/// The first ancestor DataGridRow of the element parameter.
/// Returns null of none is found.
/// </returns>
public static DataGridRow GetRowContainingElement(FrameworkElement element)
{
return(DataGridHelper.FindVisualParent <DataGridRow>(element));
}
