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); }
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); }
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); }