internal List <AutomationPeer> GetColumnHeadersPeer()
{
if (m_dataGridContext == null)
{
return(null);
}
List <AutomationPeer> list = new List <AutomationPeer>(16);
this.AddChildrenHeaders(m_dataGridContext.CustomItemContainerGenerator.Header, m_headerFooterChildren, list);
this.AddChildrenFooters(m_dataGridContext.CustomItemContainerGenerator.Footer, m_headerFooterChildren, list);
int listCount = list.Count;
List <AutomationPeer> columnHeaders = new List <AutomationPeer>(listCount);
for (int i = 0; i < listCount; i++)
{
HeaderFooterItemAutomationPeer headerFooterItemPeer = list[i] as HeaderFooterItemAutomationPeer;
if (headerFooterItemPeer == null)
{
continue;
}
if (headerFooterItemPeer.GetAutomationControlType() == AutomationControlType.Header)
{
columnHeaders.Add(headerFooterItemPeer);
}
}
return(columnHeaders);
}
private void AddChildrenFooters(
HeadersFootersGeneratorNode footerNode,
Hashtable oldHeaderFooterChildren,
List <AutomationPeer> list)
{
if (m_parentDataGridContext == null)
{
// Add fixed header to the children list
Panel fixedFooterPanel = m_dataGridControl.FixedFootersHostPanel;
if (fixedFooterPanel != null)
{
int index = 0;
foreach (DependencyObject headerFooter in fixedFooterPanel.Children)
{
HeaderFooterItem headerFooterItem = headerFooter as HeaderFooterItem;
if (headerFooterItem != null)
{
HeaderFooterItemAutomationPeer automationPeer = oldHeaderFooterChildren[headerFooter] as HeaderFooterItemAutomationPeer;
if (automationPeer == null)
{
automationPeer = new HeaderFooterItemAutomationPeer(m_dataGridContext, headerFooter);
}
automationPeer.SetExtraInfo(HeaderFooterItemAutomationPeer.HeaderFooterType.FixedFooter, index);
m_headerFooterChildren[headerFooter] = automationPeer;
list.Add(automationPeer);
}
index++;
}
}
}
if (footerNode != null)
{
DataGridGroupAutomationPeer.AddFooterPeer(m_dataGridContext, footerNode, list, m_headerFooterChildren, oldHeaderFooterChildren);
}
}
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;
}
}
}
public IRawElementProviderSimple FindItemByProperty(IRawElementProviderSimple startAfter, int propertyId, object value)
{
if ((propertyId != 0) && (!DataGridGroupAutomationPeer.IsPropertySupportedForFindItem(propertyId)))
{
throw new ArgumentException("Property not supported");
}
Group owner = this.Owner;
GroupGeneratorNode generatorNode = owner.GeneratorNode;
if (generatorNode == null)
{
return(null);
}
DataGridContext dataGridContext = owner.DataGridContext;
if (dataGridContext == null)
{
return(null);
}
this.ResetChildrenCache();
IList <object> items = owner.GetItems();
int itemsCount = (items == null) ? 0 : items.Count;
DataGridItemAutomationPeer startAfterItemPeer = null;
HeaderFooterItemAutomationPeer startAfterHeaderFooterPeer = null;
if (startAfter != null)
{
AutomationPeer startAfterPeer = this.PeerFromProvider(startAfter);
if (startAfterPeer == null)
{
return(null);
}
startAfterItemPeer = startAfterPeer as DataGridItemAutomationPeer;
startAfterHeaderFooterPeer = startAfterPeer as HeaderFooterItemAutomationPeer;
}
int startIndex = 0;
// Get header count
HeadersFootersGeneratorNode headerNode = generatorNode.GetHeaderNode();
int headersCount = (headerNode == null) ? 0 : headerNode.ItemCount;
// Get footer count
HeadersFootersGeneratorNode footerNode = generatorNode.GetFooterNode();
int footersCount = (footerNode == null) ? 0 : footerNode.ItemCount;
int childrenCount = headersCount + footersCount + itemsCount;
if (startAfterItemPeer != null)
{
startIndex = headersCount + startAfterItemPeer.Index + 1;
}
else if (startAfterHeaderFooterPeer != null)
{
startIndex = startAfterHeaderFooterPeer.Index + 1;
switch (startAfterHeaderFooterPeer.Type)
{
case HeaderFooterItemAutomationPeer.HeaderFooterType.Header:
{
break;
}
case HeaderFooterItemAutomationPeer.HeaderFooterType.Footer:
{
startIndex += headersCount + itemsCount;
break;
}
}
}
if (propertyId == 0)
{
AutomationPeer peer = this.GetPeerForChildrenIndex(startIndex);
if (peer == null)
{
return(null);
}
return(this.ProviderFromPeer(peer));
}
object propertyValue = null;
for (int i = startIndex; i < childrenCount; i++)
{
AutomationPeer peer = this.GetPeerForChildrenIndex(i);
if (peer != null)
{
try
{
propertyValue = peer.GetPropertyValue(propertyId);
}
catch (Exception exception)
{
if (exception is ElementNotAvailableException)
{
continue;
}
}
if (object.Equals(value, propertyValue))
{
return(this.ProviderFromPeer(peer));
}
}
}
return(null);
}
public IRawElementProviderSimple FindItemByProperty(IRawElementProviderSimple startAfter, int propertyId, object value)
{
if ((propertyId != 0) && (!DataGridContextAutomationPeer.IsPropertySupportedForFindItem(propertyId)))
{
throw new ArgumentException("Property not supported");
}
if (m_dataGridContext == null)
{
return(null);
}
CollectionView items = m_dataGridContext.Items;
int itemsCount = (items == null) ? 0 : items.Count;
DataGridItemAutomationPeer startAfterItemPeer = null;
HeaderFooterItemAutomationPeer startAfterHeaderFooterPeer = null;
if (startAfter != null)
{
AutomationPeer startAfterPeer = this.PeerFromProvider(startAfter);
if (startAfterPeer == null)
{
return(null);
}
startAfterItemPeer = startAfterPeer as DataGridItemAutomationPeer;
startAfterHeaderFooterPeer = startAfterPeer as HeaderFooterItemAutomationPeer;
}
int startIndex = 0;
// Get header count
HeadersFootersGeneratorNode headerNode = m_dataGridContext.CustomItemContainerGenerator.Header;
int headersCount = (headerNode == null) ? 0 : headerNode.ItemCount;
int fixedHeadersCount = 0;
Panel fixedHeadersPanel = null;
// Get footer count
HeadersFootersGeneratorNode footerNode = m_dataGridContext.CustomItemContainerGenerator.Footer;
int footersCount = (footerNode == null) ? 0 : footerNode.ItemCount;
int fixedFootersCount = 0;
Panel fixedFootersPanel = null;
if (m_parentDataGridContext == null)
{
// Add the fixed header / footer count to the children
fixedHeadersPanel = m_dataGridControl.FixedHeadersHostPanel;
fixedHeadersCount = (fixedHeadersPanel != null) ? fixedHeadersPanel.Children.Count : 0;
fixedFootersPanel = m_dataGridControl.FixedFootersHostPanel;
fixedFootersCount = (fixedFootersPanel != null) ? fixedFootersPanel.Children.Count : 0;
}
int childrenCount = headersCount + fixedHeadersCount + footersCount + fixedFootersCount + itemsCount;
if (startAfterItemPeer != null)
{
startIndex = fixedHeadersCount + headersCount + startAfterItemPeer.Index + 1;
}
else if (startAfterHeaderFooterPeer != null)
{
startIndex = startAfterHeaderFooterPeer.Index + 1;
switch (startAfterHeaderFooterPeer.Type)
{
case HeaderFooterItemAutomationPeer.HeaderFooterType.FixedHeader:
{
break;
}
case HeaderFooterItemAutomationPeer.HeaderFooterType.Header:
{
startIndex += fixedHeadersCount;
break;
}
case HeaderFooterItemAutomationPeer.HeaderFooterType.Footer:
{
startIndex += fixedHeadersCount + headersCount + itemsCount;
break;
}
case HeaderFooterItemAutomationPeer.HeaderFooterType.FixedFooter:
{
startIndex += fixedHeadersCount + headersCount + footersCount + itemsCount;
break;
}
}
}
// Force a children refresh and update our inner caching
this.GetChildren();
if (propertyId == 0)
{
AutomationPeer peer = this.GetPeerForChildrenIndex(startIndex);
if (peer == null)
{
return(null);
}
return(this.ProviderFromPeer(peer));
}
object propertyValue = null;
// Search in footer/Fixed footer first
if (footersCount + fixedFootersCount > 0)
{
int footerStartIndex = System.Math.Max(startIndex, childrenCount - footersCount - fixedFootersCount);
for (int i = startIndex; i < childrenCount; i++)
{
AutomationPeer peer = this.GetPeerForChildrenIndex(i);
if (peer != null)
{
try
{
propertyValue = peer.GetPropertyValue(propertyId);
}
catch (Exception exception)
{
if (exception is ElementNotAvailableException)
{
continue;
}
}
if (object.Equals(value, propertyValue))
{
return(this.ProviderFromPeer(peer));
}
}
}
childrenCount -= footersCount + fixedFootersCount;
}
// Search in the header/Fixed header and data item
for (int i = startIndex; i < childrenCount; i++)
{
AutomationPeer peer = this.GetPeerForChildrenIndex(i);
if (peer != null)
{
try
{
propertyValue = peer.GetPropertyValue(propertyId);
}
catch (Exception exception)
{
if (exception is ElementNotAvailableException)
{
continue;
}
}
if (object.Equals(value, propertyValue))
{
return(this.ProviderFromPeer(peer));
}
}
}
return(null);
}
