private AutomationPeer GetPeerForChildrenIndex(int index)
{
Group owner = this.Owner;
GroupGeneratorNode generatorNode = owner.GeneratorNode;
if (generatorNode == null)
{
return(null);
}
DataGridContext dataGridContext = owner.DataGridContext;
if (dataGridContext == null)
{
return(null);
}
DataGridContextAutomationPeer dataGridContextAutomationPeer = dataGridContext.Peer;
HeadersFootersGeneratorNode headerNode = generatorNode.GetHeaderNode();
int headersCount = (headerNode == null) ? 0 : headerNode.ItemCount;
if (index < headersCount)
{
object item = headerNode.GetAt(index);
AutomationPeer automationPeer = m_headerFooterChildren[item] as AutomationPeer;
Debug.Assert(automationPeer != null);
return(automationPeer);
}
else
{
index -= headersCount;
IList <object> items = owner.GetItems();
int itemsCount = (items == null) ? 0 : items.Count;
if (index < itemsCount)
{
return(dataGridContextAutomationPeer.FindOrCreateItemAutomationPeer(items[index], -1));
}
else
{
index -= itemsCount;
HeadersFootersGeneratorNode footerNode = generatorNode.GetFooterNode();
int footersCount = (footerNode == null) ? 0 : footerNode.ItemCount;
if (index < footersCount)
{
object item = footerNode.GetAt(index);
AutomationPeer automationPeer = m_headerFooterChildren[item] as AutomationPeer;
Debug.Assert(automationPeer != null);
return(automationPeer);
}
}
}
return(null);
}
static internal void AddFooterPeer(
DataGridContext dataGridContext,
HeadersFootersGeneratorNode node,
List <AutomationPeer> list,
Hashtable children,
Hashtable oldChildren)
{
int headersCount = node.ItemCount;
for (int i = 0; i < headersCount; i++)
{
// We use GetAt since it does not return the same thing as .Items.
// We need to get a GroupHeaderFooterItem.
object item = node.GetAt(i);
if (item != null)
{
HeaderFooterItemAutomationPeer automationPeer =
oldChildren[item] as HeaderFooterItemAutomationPeer;
if (automationPeer == null)
{
automationPeer = new HeaderFooterItemAutomationPeer(dataGridContext, item);
}
Debug.Assert(automationPeer != null);
// we set ExtraInfo even if the header was already created since the position can change.
automationPeer.SetExtraInfo(HeaderFooterItemAutomationPeer.HeaderFooterType.Footer, i);
// Force EventsSource to be updated
automationPeer.GetWrapperPeer();
list.Add(automationPeer);
children[item] = automationPeer;
}
}
}
internal static void AddFooterPeer(
DataGridContext dataGridContext,
HeadersFootersGeneratorNode node,
List<AutomationPeer> list,
Hashtable children,
Hashtable oldChildren )
{
int headersCount = node.ItemCount;
for( int i = 0; i < headersCount; i++ )
{
// We use GetAt since it does not return the same thing as .Items.
// We need to get a GroupHeaderFooterItem.
object item = node.GetAt( i );
if( item != null )
{
HeaderFooterItemAutomationPeer automationPeer =
oldChildren[ item ] as HeaderFooterItemAutomationPeer;
if( automationPeer == null )
{
automationPeer = new HeaderFooterItemAutomationPeer( dataGridContext, item );
}
Debug.Assert( automationPeer != null );
// we set ExtraInfo even if the header was already created since the position can change.
automationPeer.SetExtraInfo( HeaderFooterItemAutomationPeer.HeaderFooterType.Footer, i );
// Force EventsSource to be updated
automationPeer.GetWrapperPeer();
list.Add( automationPeer );
children[ item ] = automationPeer;
}
}
}
private AutomationPeer GetPeerForChildrenIndex(int index)
{
int fixedHeadersCount = 0;
Panel fixedHeadersPanel = null;
int fixedFootersCount = 0;
Panel fixedFootersPanel = null;
if (m_parentDataGridContext == null)
{
fixedHeadersPanel = m_dataGridControl.FixedHeadersHostPanel;
fixedHeadersCount = (fixedHeadersPanel != null) ? fixedHeadersPanel.Children.Count : 0;
fixedFootersPanel = m_dataGridControl.FixedFootersHostPanel;
fixedFootersCount = (fixedFootersPanel != null) ? fixedFootersPanel.Children.Count : 0;
}
if (index < fixedHeadersCount)
{
UIElement element = fixedHeadersPanel.Children[index];
AutomationPeer automationPeer = m_headerFooterChildren[element] as AutomationPeer;
Debug.Assert(automationPeer != null);
if (automationPeer == null)
{
return(null);
}
return(automationPeer);
}
else
{
index -= fixedHeadersCount;
HeadersFootersGeneratorNode headerNode = m_dataGridContext.CustomItemContainerGenerator.Header;
int headersCount = (headerNode == null) ? 0 : headerNode.ItemCount;
if (index < headersCount)
{
object item = headerNode.GetAt(index);
AutomationPeer automationPeer = m_headerFooterChildren[item] as AutomationPeer;
Debug.Assert(automationPeer != null);
return(automationPeer);
}
else
{
index -= headersCount;
CollectionView items = m_dataGridContext.Items;
int itemsCount = (items == null) ? 0 : items.Count;
if (index < itemsCount)
{
return(this.FindOrCreateItemAutomationPeer(items.GetItemAt(index), index));
}
else
{
index -= itemsCount;
HeadersFootersGeneratorNode footerNode = m_dataGridContext.CustomItemContainerGenerator.Footer;
int footersCount = (footerNode == null) ? 0 : footerNode.ItemCount;
if (index < footersCount)
{
object item = footerNode.GetAt(index);
AutomationPeer automationPeer = m_headerFooterChildren[item] as AutomationPeer;
Debug.Assert(automationPeer != null);
return(automationPeer);
}
else
{
index -= footersCount;
if (index < fixedFootersCount)
{
UIElement element = fixedFootersPanel.Children[index];
AutomationPeer automationPeer = m_headerFooterChildren[element] as AutomationPeer;
Debug.Assert(automationPeer != null);
return(automationPeer);
}
}
}
}
}
return(null);
}
