/// <summary>
/// Fire ColumnCount changed event for GridPattern
/// </summary>
private void OnColumnCollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
if (_oldColumnsCount != _owner.Columns.Count)
{
ListViewAutomationPeer peer = UIElementAutomationPeer.FromElement(_listview) as ListViewAutomationPeer;
Invariant.Assert(peer != null);
if (peer != null)
{
peer.RaisePropertyChangedEvent(GridPatternIdentifiers.ColumnCountProperty, _oldColumnsCount, _owner.Columns.Count);
}
}
_oldColumnsCount = _owner.Columns.Count;
AutomationPeer lvPeer = UIElementAutomationPeer.FromElement(_listview);
if (lvPeer != null)
{
List <AutomationPeer> list = lvPeer.GetChildren();
if (list != null)
{
foreach (AutomationPeer peer in list)
{
peer.InvalidatePeer();
}
}
}
}
protected override List <AutomationPeer> GetChildrenCore()
{
List <AutomationPeer> children = new List <AutomationPeer>();
AutoCompleteBox owner = OwnerAutoCompleteBox;
// TextBox part.
TextBox textBox = owner.TextBox;
if (textBox != null)
{
AutomationPeer peer = CreatePeerForElement(textBox);
if (peer != null)
{
children.Insert(0, peer);
}
}
// Include SelectionAdapter's children.
AutomationPeer selectionAdapterPeer = owner.SelectionAdapter?.CreateAutomationPeer();
List <AutomationPeer> listChildren = selectionAdapterPeer?.GetChildren();
if (listChildren != null)
{
children.AddRange(listChildren);
}
return(children);
}
// Token: 0x060026B5 RID: 9909 RVA: 0x000B7DAC File Offset: 0x000B5FAC
private void OnColumnCollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
if (this._oldColumnsCount != this._owner.Columns.Count)
{
ListViewAutomationPeer listViewAutomationPeer = UIElementAutomationPeer.FromElement(this._listview) as ListViewAutomationPeer;
Invariant.Assert(listViewAutomationPeer != null);
if (listViewAutomationPeer != null)
{
listViewAutomationPeer.RaisePropertyChangedEvent(GridPatternIdentifiers.ColumnCountProperty, this._oldColumnsCount, this._owner.Columns.Count);
}
}
this._oldColumnsCount = this._owner.Columns.Count;
AutomationPeer automationPeer = UIElementAutomationPeer.FromElement(this._listview);
if (automationPeer != null)
{
List <AutomationPeer> children = automationPeer.GetChildren();
if (children != null)
{
foreach (AutomationPeer automationPeer2 in children)
{
automationPeer2.InvalidatePeer();
}
}
}
}
/// <summary>
/// Obtain the IRawElementProviderSimple at an absolute position
/// </summary>
IRawElementProviderSimple IGridProvider.GetItem(int row, int column)
{
if (row < 0 || row >= ((IGridProvider)this).RowCount)
{
throw new ArgumentOutOfRangeException("row");
}
if (column < 0 || column >= ((IGridProvider)this).ColumnCount)
{
throw new ArgumentOutOfRangeException("column");
}
ListViewItem lvi = _listview.ItemContainerGenerator.ContainerFromIndex(row) as ListViewItem;
//If item is virtualized, try to de-virtualize it
if (lvi == null)
{
VirtualizingPanel itemsHost = _listview.ItemsHost as VirtualizingPanel;
if (itemsHost != null)
{
itemsHost.BringIndexIntoView(row);
}
lvi = _listview.ItemContainerGenerator.ContainerFromIndex(row) as ListViewItem;
if (lvi != null)
{
//Must call Invoke here to force run the render process
_listview.Dispatcher.Invoke(
System.Windows.Threading.DispatcherPriority.Loaded,
(System.Windows.Threading.DispatcherOperationCallback) delegate(object arg)
{
return(null);
},
null);
}
}
//lvi is null, it is virtualized, so we can't return its cell
if (lvi != null)
{
AutomationPeer lvpeer = UIElementAutomationPeer.FromElement(_listview);
if (lvpeer != null)
{
List <AutomationPeer> rows = lvpeer.GetChildren();
//Headers is the first child of GridView, so we need to skip it here
if (rows.Count - 1 > row)
{
AutomationPeer peer = rows[row + 1];
List <AutomationPeer> columns = peer.GetChildren();
if (columns.Count > column)
{
return(ElementProxy.StaticWrap(columns[column], lvpeer));
}
}
}
}
return(null);
}
// Token: 0x060025E5 RID: 9701 RVA: 0x000B5780 File Offset: 0x000B3980
protected override List <AutomationPeer> GetChildrenCore()
{
AutomationPeer wrapperPeer = this.GetWrapperPeer();
if (wrapperPeer != null)
{
wrapperPeer.ForceEnsureChildren();
return(wrapperPeer.GetChildren());
}
return(this.GetCellItemPeers());
}
// Token: 0x0600262D RID: 9773 RVA: 0x000B6340 File Offset: 0x000B4540
protected override List <AutomationPeer> GetChildrenCore()
{
AutomationPeer wrapperPeer = this.WrapperPeer;
if (wrapperPeer != null)
{
return(wrapperPeer.GetChildren());
}
this.ThrowElementNotAvailableException();
return(null);
}
// Token: 0x06002587 RID: 9607 RVA: 0x000B47A0 File Offset: 0x000B29A0
protected override List <AutomationPeer> GetChildrenCore()
{
AutomationPeer owningCellPeer = this.OwningCellPeer;
if (owningCellPeer != null)
{
owningCellPeer.ForceEnsureChildren();
return(owningCellPeer.GetChildren());
}
return(null);
}
///
protected override List <AutomationPeer> GetChildrenCore()
{
AutomationPeer wrapperPeer = GetWrapperPeer();
if (wrapperPeer != null)
{
// The children needs to be updated before GetChildren call as ChildrenValid flag would already be true and GetChildren call won't update the children list.
wrapperPeer.ForceEnsureChildren();
List <AutomationPeer> children = wrapperPeer.GetChildren();
return(children);
}
return(null);
}
/// <summary>Returns the UI Automation provider for the specified cell.</summary>
/// <param name="row">The ordinal number of the row of interest.</param>
/// <param name="column">The ordinal number of the column of interest.</param>
/// <returns>The UI Automation provider for the specified cell.</returns>
// Token: 0x060026B4 RID: 9908 RVA: 0x000B7CA0 File Offset: 0x000B5EA0
IRawElementProviderSimple IGridProvider.GetItem(int row, int column)
{
if (row < 0 || row >= ((IGridProvider)this).RowCount)
{
throw new ArgumentOutOfRangeException("row");
}
if (column < 0 || column >= ((IGridProvider)this).ColumnCount)
{
throw new ArgumentOutOfRangeException("column");
}
ListViewItem listViewItem = this._listview.ItemContainerGenerator.ContainerFromIndex(row) as ListViewItem;
if (listViewItem == null)
{
VirtualizingPanel virtualizingPanel = this._listview.ItemsHost as VirtualizingPanel;
if (virtualizingPanel != null)
{
virtualizingPanel.BringIndexIntoView(row);
}
listViewItem = (this._listview.ItemContainerGenerator.ContainerFromIndex(row) as ListViewItem);
if (listViewItem != null)
{
this._listview.Dispatcher.Invoke(DispatcherPriority.Loaded, new DispatcherOperationCallback((object arg) => null), null);
}
}
if (listViewItem != null)
{
AutomationPeer automationPeer = UIElementAutomationPeer.FromElement(this._listview);
if (automationPeer != null)
{
AutomationPeer automationPeer2 = UIElementAutomationPeer.FromElement(listViewItem);
if (automationPeer2 != null)
{
AutomationPeer eventsSource = automationPeer2.EventsSource;
if (eventsSource != null)
{
automationPeer2 = eventsSource;
}
List <AutomationPeer> children = automationPeer2.GetChildren();
if (children.Count > column)
{
return(ElementProxy.StaticWrap(children[column], automationPeer));
}
}
}
}
return(null);
}
///
protected override List <AutomationPeer> GetChildrenCore()
{
AutomationPeer wrapperPeer = GetWrapperPeer();
if (wrapperPeer != null)
{
// We need to update children manually since wrapperPeer is not in the Automation Tree
// When containers are recycled the visual (DataGridRow) will point to a new item. ForceEnsureChildren will just refresh children of this peer,
// unlike UpdateSubtree which would raise property change events and recursively updates entire subtree.
// WrapperPeer's children are the peers for DataGridRowHeader, DataGridCells and DataGridRowDetails.
wrapperPeer.ForceEnsureChildren();
List <AutomationPeer> children = wrapperPeer.GetChildren();
return(children);
}
return(GetCellItemPeers());
}
///
protected override List <AutomationPeer> GetChildrenCore()
{
AutomationPeer wrapperPeer = OwningCellPeer;
if (wrapperPeer != null)
{
// We need to manually update children here since the wrapperPeer is not in the automation tree.
// When containers are recycled the visual (DataGridCell) will point to a new item. ForceEnsureChildren will just refresh children of this peer,
// unlike UpdateSubtree which would raise property change events and recursively updates entire subtree.
// WrapperPeer's children need to be updated when switching from Editing mode to Non-editing mode and back.
wrapperPeer.ForceEnsureChildren();
List <AutomationPeer> children = wrapperPeer.GetChildren();
return(children);
}
return(null);
}
private bool isDescendantOf(AutomationPeer parent)
{
if(parent == null)
throw new ArgumentNullException("parent");
List<AutomationPeer> children = parent.GetChildren();
if(children == null)
return false;
int cnt = children.Count;
for(int i = 0; i < cnt; ++i)
{
AutomationPeer child = children[i];
//depth first
if(child == this || this.isDescendantOf(child))
return true;
}
return false;
}
