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);
}
protected override List <AutomationPeer> GetChildrenCore()
{
Group owner = this.Owner;
GroupGeneratorNode generatorNode = owner.GeneratorNode;
if (generatorNode == null)
{
return(null);
}
DataGridContext dataGridContext = owner.DataGridContext;
if (dataGridContext == null)
{
return(null);
}
CustomItemContainerGenerator customItemContainerGenerator = dataGridContext.CustomItemContainerGenerator;
IList <object> items;
bool itemsIsAllItems = false;
// The way Microsoft check if we are called by an automation that support Virtualization.
if ((ItemContainerPatternIdentifiers.Pattern != null) && (owner.IsBottomLevel) && (dataGridContext.DataGridControl.ItemsHost is DataGridItemsHost))
{
items = customItemContainerGenerator.GetRealizedDataItemsForGroup(generatorNode);
}
else
{
items = owner.GetItems();
itemsIsAllItems = true;
}
int itemsCount = (items == null) ? 0 : items.Count;
Hashtable oldDataChildren = m_dataChildren;
Hashtable oldHeaderFooterChildren = m_headerFooterChildren;
// 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 = itemsCount + headersCount + footersCount;
m_dataChildren = new Hashtable(itemsCount);
m_headerFooterChildren = new Hashtable(headersCount + footersCount);
if (childrenCount == 0)
{
return(null);
}
DataGridContextAutomationPeer dataGridContextAutomationPeer = dataGridContext.Peer;
Hashtable dataGridContextItemsPeer = dataGridContextAutomationPeer.ItemPeers;
DataGridGroupAutomationPeer groupAutomationPeer;
DataGridItemAutomationPeer itemAutomationPeer;
List <AutomationPeer> list = new List <AutomationPeer>(childrenCount);
if (headerNode != null)
{
DataGridGroupAutomationPeer.AddHeaderPeer(dataGridContext, headerNode, list, m_headerFooterChildren, oldHeaderFooterChildren);
}
int index = 0;
for (int i = 0; i < itemsCount; i++)
{
Object item = items[i];
CollectionViewGroup collectionViewGroup = item as CollectionViewGroup;
if (collectionViewGroup == null)
{
if ((i == 0) && (itemsIsAllItems))
{
GeneratorNodeHelper nodeHelper = new GeneratorNodeHelper(generatorNode, 0, 0);
nodeHelper.ReverseCalculateIndex();
index = nodeHelper.SourceDataIndex;
}
itemAutomationPeer = oldDataChildren[item] as DataGridItemAutomationPeer;
if (itemAutomationPeer == null)
{
if (itemsIsAllItems)
{
itemAutomationPeer = dataGridContextAutomationPeer.CreateItemAutomationPeerInternal(item, index + i);
}
else
{
itemAutomationPeer = dataGridContextAutomationPeer.CreateItemAutomationPeerInternal(item, -1);
}
}
else
{
if (itemsIsAllItems)
{
itemAutomationPeer.SetIndex(index + i);
}
else
{
itemAutomationPeer.SetIndex(-1);
}
}
// Force EventsSource to be updated
itemAutomationPeer.GetWrapperPeer();
if (m_dataChildren[item] == null)
{
Debug.Assert(itemAutomationPeer != null);
list.Add(itemAutomationPeer);
m_dataChildren[item] = itemAutomationPeer;
if (dataGridContextItemsPeer[item] == null)
{
dataGridContextItemsPeer[item] = itemAutomationPeer;
}
}
}
else
{
Group uiGroup =
customItemContainerGenerator.GetGroupFromCollectionViewGroup(this.Owner, collectionViewGroup);
if (uiGroup != null)
{
groupAutomationPeer = uiGroup.CreateAutomationPeer() as DataGridGroupAutomationPeer;
if (groupAutomationPeer != null)
{
list.Add(groupAutomationPeer);
}
}
}
}
if (footerNode != null)
{
DataGridGroupAutomationPeer.AddFooterPeer(dataGridContext, footerNode, list, m_headerFooterChildren, oldHeaderFooterChildren);
}
return(list);
}
public DataGridControlAutomationPeer( DataGridControl owner )
: base( owner )
{
m_innerDataGridContextAutomationPeer = new DataGridContextAutomationPeer( owner, null, null, null );
m_innerDataGridContextAutomationPeer.EventsSource = this;
}
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 = 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);
}
protected override List <AutomationPeer> GetChildrenCore()
{
DataRow dataRow = m_dataGridContext.CustomItemContainerGenerator.ContainerFromItem(m_item) as DataRow;
if (dataRow == null)
{
return(null);
}
// Get child context ( Detail )
DetailConfigurationCollection detailConfigurations = m_dataGridContext.DetailConfigurations;
int detailConfigurationsCount = detailConfigurations.Count;
ReadOnlyObservableCollection <ColumnBase> visibleColumns = m_dataGridContext.VisibleColumns;
int visibleColumnsCount = visibleColumns.Count;
if (visibleColumnsCount + detailConfigurationsCount <= 0)
{
return(null);
}
Hashtable oldDataChildren = m_dataChildren;
List <AutomationPeer> list = new List <AutomationPeer>(visibleColumnsCount + detailConfigurationsCount);
m_dataChildren = new Hashtable(visibleColumnsCount + detailConfigurationsCount);
for (int i = 0; i < visibleColumnsCount; i++)
{
ColumnBase column = visibleColumns[i];
DataGridItemCellAutomationPeer cellAutomationPeer =
oldDataChildren[column] as DataGridItemCellAutomationPeer;
if (cellAutomationPeer == null)
{
cellAutomationPeer = new DataGridItemCellAutomationPeer(this, column);
}
// Always resetting the ColumnIndex since the visible position can have changed
cellAutomationPeer.ColumnIndex = i;
list.Add(cellAutomationPeer);
m_dataChildren[column] = cellAutomationPeer;
}
for (int i = 0; i < detailConfigurationsCount; i++)
{
DetailConfiguration detailConfiguration = detailConfigurations[i];
DataGridContextAutomationPeer detailDataGridContextAutomationPeer = null;
detailDataGridContextAutomationPeer =
oldDataChildren[detailConfiguration] as DataGridContextAutomationPeer;
if (detailDataGridContextAutomationPeer == null)
{
detailDataGridContextAutomationPeer = new DataGridContextAutomationPeer(
m_dataGridContext.DataGridControl, m_dataGridContext, m_item, detailConfiguration);
}
list.Add(detailDataGridContextAutomationPeer);
m_dataChildren[detailConfiguration] = detailDataGridContextAutomationPeer;
}
return(list);
}
protected override List<AutomationPeer> GetChildrenCore()
{
DataRow dataRow = m_dataGridContext.CustomItemContainerGenerator.ContainerFromItem( m_item ) as DataRow;
if( dataRow == null )
return null;
// Get child context ( Detail )
DetailConfigurationCollection detailConfigurations = m_dataGridContext.DetailConfigurations;
int detailConfigurationsCount = detailConfigurations.Count;
ReadOnlyObservableCollection<ColumnBase> visibleColumns = m_dataGridContext.VisibleColumns;
int visibleColumnsCount = visibleColumns.Count;
if( visibleColumnsCount + detailConfigurationsCount <= 0 )
return null;
Hashtable oldDataChildren = m_dataChildren;
List<AutomationPeer> list = new List<AutomationPeer>( visibleColumnsCount + detailConfigurationsCount );
m_dataChildren = new Hashtable( visibleColumnsCount + detailConfigurationsCount );
for( int i = 0; i < visibleColumnsCount; i++ )
{
ColumnBase column = visibleColumns[ i ];
DataGridItemCellAutomationPeer cellAutomationPeer =
oldDataChildren[ column ] as DataGridItemCellAutomationPeer;
if( cellAutomationPeer == null )
cellAutomationPeer = new DataGridItemCellAutomationPeer( this, column );
// Always resetting the ColumnIndex since the visible position can have changed
cellAutomationPeer.ColumnIndex = i;
list.Add( cellAutomationPeer );
m_dataChildren[ column ] = cellAutomationPeer;
}
for( int i = 0; i < detailConfigurationsCount; i++ )
{
DetailConfiguration detailConfiguration = detailConfigurations[ i ];
DataGridContextAutomationPeer detailDataGridContextAutomationPeer = null;
detailDataGridContextAutomationPeer =
oldDataChildren[ detailConfiguration ] as DataGridContextAutomationPeer;
if( detailDataGridContextAutomationPeer == null )
{
detailDataGridContextAutomationPeer = new DataGridContextAutomationPeer(
m_dataGridContext.DataGridControl, m_dataGridContext, m_item, detailConfiguration );
}
list.Add( detailDataGridContextAutomationPeer );
m_dataChildren[ detailConfiguration ] = detailDataGridContextAutomationPeer;
}
return list;
}
public DataGridControlAutomationPeer(DataGridControl owner)
: base(owner)
{
m_innerDataGridContextAutomationPeer = new DataGridContextAutomationPeer(owner, null, null, null);
m_innerDataGridContextAutomationPeer.EventsSource = this;
}
