// This method is called from DataGrid.OnBeginningEdit/OnCommittingEdit/OnCancelingEdit
// Raises Invoked event when row begin/cancel/commit edit
internal void RaiseAutomationRowInvokeEvents(DataGridRow row)
{
DataGridItemAutomationPeer dataGridItemAutomationPeer = GetOrCreateItemPeer(row.Item);
if (dataGridItemAutomationPeer != null)
{
dataGridItemAutomationPeer.RaiseAutomationEvent(AutomationEvents.InvokePatternOnInvoked);
}
}
// This method is called from DataGrid.OnSelectionChanged
// Raises the selection events when Items selection changes
internal void RaiseAutomationSelectionEvents(SelectionChangedEventArgs e)
{
int numSelected = this.OwningDataGrid.SelectedItems.Count;
int numAdded = e.AddedItems.Count;
// If the result of an AddToSelection or RemoveFromSelection is a single selected item,
// then all we raise is the ElementSelectedEvent for single item
if (AutomationPeer.ListenerExists(AutomationEvents.SelectionItemPatternOnElementSelected) &&
numSelected == 1 && numAdded == 1)
{
DataGridItemAutomationPeer peer = GetOrCreateItemPeer(this.OwningDataGrid.SelectedItem);
if (peer != null)
{
peer.RaiseAutomationEvent(AutomationEvents.SelectionItemPatternOnElementSelected);
}
}
else
{
int i;
if (AutomationPeer.ListenerExists(AutomationEvents.SelectionItemPatternOnElementAddedToSelection))
{
for (i = 0; i < e.AddedItems.Count; i++)
{
DataGridItemAutomationPeer peer = GetOrCreateItemPeer(e.AddedItems[i]);
if (peer != null)
{
peer.RaiseAutomationEvent(AutomationEvents.SelectionItemPatternOnElementAddedToSelection);
}
}
}
if (AutomationPeer.ListenerExists(AutomationEvents.SelectionItemPatternOnElementRemovedFromSelection))
{
for (i = 0; i < e.RemovedItems.Count; i++)
{
DataGridItemAutomationPeer peer = GetOrCreateItemPeer(e.RemovedItems[i]);
if (peer != null)
{
peer.RaiseAutomationEvent(AutomationEvents.SelectionItemPatternOnElementRemovedFromSelection);
}
}
}
}
}