override protected bool IsOffscreenCore()
{
if (!Owner.IsVisible)
{
return(true);
}
Rect boundingRect = DataGridAutomationPeer.CalculateVisibleBoundingRect(this.Owner);
return(DoubleUtil.AreClose(boundingRect, Rect.Empty) || DoubleUtil.AreClose(boundingRect.Height, 0.0) || DoubleUtil.AreClose(boundingRect.Width, 0.0));
}
internal void UpdateEventSource()
{
DataGrid dataGrid = OwningDataGridRow.DataGridOwner;
if (dataGrid != null)
{
DataGridAutomationPeer dataGridAutomationPeer = CreatePeerForElement(dataGrid) as DataGridAutomationPeer;
if (dataGridAutomationPeer != null)
{
AutomationPeer itemAutomationPeer = dataGridAutomationPeer.GetOrCreateItemPeer(OwningDataGridRow.Item);
if (itemAutomationPeer != null)
{
this.EventsSource = itemAutomationPeer;
}
}
}
}
private void UpdateEventSource()
{
DataGridCell cell = (DataGridCell)Owner;
DataGrid dataGrid = cell.DataGridOwner;
if (dataGrid != null)
{
DataGridAutomationPeer dataGridAutomationPeer = CreatePeerForElement(dataGrid) as DataGridAutomationPeer;
if (dataGridAutomationPeer != null)
{
DataGridItemAutomationPeer itemAutomationPeer = dataGridAutomationPeer.GetOrCreateItemPeer(cell.DataContext);
if (itemAutomationPeer != null)
{
DataGridCellItemAutomationPeer cellItemAutomationPeer = itemAutomationPeer.GetOrCreateCellItemPeer(cell.Column);
this.EventsSource = cellItemAutomationPeer;
}
}
}
}
IRawElementProviderSimple[] ITableItemProvider.GetRowHeaderItems()
{
if (this.OwningDataGrid != null &&
(this.OwningDataGrid.HeadersVisibility & DataGridHeadersVisibility.Row) == DataGridHeadersVisibility.Row)
{
DataGridAutomationPeer dataGridAutomationPeer = UIElementAutomationPeer.CreatePeerForElement(this.OwningDataGrid) as DataGridAutomationPeer;
DataGridItemAutomationPeer dataGridItemAutomationPeer = dataGridAutomationPeer.GetOrCreateItemPeer(_item);
if (dataGridItemAutomationPeer != null)
{
AutomationPeer rowHeaderAutomationPeer = dataGridItemAutomationPeer.RowHeaderAutomationPeer;
if (rowHeaderAutomationPeer != null)
{
List <IRawElementProviderSimple> providers = new List <IRawElementProviderSimple>(1);
providers.Add(ProviderFromPeer(rowHeaderAutomationPeer));
return(providers.ToArray());
}
}
}
return(null);
}
