Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / wpf / src / Framework / System / Windows / Automation / Peers / TreeViewItemAutomationPeer.cs / 1 / TreeViewItemAutomationPeer.cs
using System; using System.Collections; using System.Collections.Generic; using System.Runtime.InteropServices; using System.Security; using System.Text; using System.Windows; using System.Windows.Automation.Provider; using System.Windows.Controls; using System.Windows.Controls.Primitives; using System.Windows.Interop; using System.Windows.Media; using MS.Internal; using MS.Win32; namespace System.Windows.Automation.Peers { /// public class TreeViewItemAutomationPeer : FrameworkElementAutomationPeer, IExpandCollapseProvider, ISelectionItemProvider, IScrollItemProvider { /// public TreeViewItemAutomationPeer(TreeViewItem owner): base(owner) { } /// override protected string GetClassNameCore() { return "TreeViewItem"; } /// override protected AutomationControlType GetAutomationControlTypeCore() { return AutomationControlType.TreeItem; } /// override public object GetPattern(PatternInterface patternInterface) { if (patternInterface == PatternInterface.ExpandCollapse) { return this; } else if (patternInterface == PatternInterface.SelectionItem) { return this; } else if (patternInterface == PatternInterface.ScrollItem) { return this; } return null; } /// void IExpandCollapseProvider.Expand() { if(!IsEnabled()) throw new ElementNotEnabledException(); TreeViewItem treeViewItem = (TreeViewItem)Owner; if (!treeViewItem.HasItems) { throw new InvalidOperationException(SR.Get(SRID.UIA_OperationCannotBePerformed)); } treeViewItem.IsExpanded = true; } /// void IExpandCollapseProvider.Collapse() { if(!IsEnabled()) throw new ElementNotEnabledException(); TreeViewItem treeViewItem = (TreeViewItem)Owner; if (!treeViewItem.HasItems) { throw new InvalidOperationException(SR.Get(SRID.UIA_OperationCannotBePerformed)); } treeViewItem.IsExpanded = false; } ExpandCollapseState IExpandCollapseProvider.ExpandCollapseState { get { TreeViewItem treeViewItem = (TreeViewItem)Owner; if (treeViewItem.HasItems) return treeViewItem.IsExpanded ? ExpandCollapseState.Expanded : ExpandCollapseState.Collapsed; else return ExpandCollapseState.LeafNode; } } // [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)] internal void RaiseExpandCollapseAutomationEvent(bool oldValue, bool newValue) { RaisePropertyChangedEvent( ExpandCollapsePatternIdentifiers.ExpandCollapseStateProperty, oldValue ? ExpandCollapseState.Expanded : ExpandCollapseState.Collapsed, newValue ? ExpandCollapseState.Expanded : ExpandCollapseState.Collapsed); } #region ISelectionItemProvider ////// Selects this element, removing any other element from the selection. /// void ISelectionItemProvider.Select() { ((TreeViewItem)Owner).IsSelected = true; } ////// Selects this item. /// void ISelectionItemProvider.AddToSelection() { TreeView treeView = ((TreeViewItem)Owner).ParentTreeView; // If TreeView already has a selected item different from current - we cannot add to selection and throw if (treeView == null || (treeView.SelectedItem != null && treeView.SelectedContainer != Owner)) { throw new InvalidOperationException(SR.Get(SRID.UIA_OperationCannotBePerformed)); } ((TreeViewItem)Owner).IsSelected = true; } ////// Unselects this item. /// void ISelectionItemProvider.RemoveFromSelection() { ((TreeViewItem)Owner).IsSelected = false; } ////// Returns whether the item is selected. /// bool ISelectionItemProvider.IsSelected { get { return ((TreeViewItem)Owner).IsSelected; } } ////// The logical element that supports the SelectionPattern for this item. /// IRawElementProviderSimple ISelectionItemProvider.SelectionContainer { get { ItemsControl parent = ((TreeViewItem)Owner).ParentItemsControl; if (parent != null) { AutomationPeer peer = UIElementAutomationPeer.FromElement(parent); if (peer != null) return ProviderFromPeer(peer); } return null; } } void IScrollItemProvider.ScrollIntoView() { ((TreeViewItem)Owner).BringIntoView(); } // [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)] internal void RaiseAutomationIsSelectedChanged(bool isSelected) { RaisePropertyChangedEvent( SelectionItemPatternIdentifiers.IsSelectedProperty, !isSelected, isSelected); } #endregion } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. using System; using System.Collections; using System.Collections.Generic; using System.Runtime.InteropServices; using System.Security; using System.Text; using System.Windows; using System.Windows.Automation.Provider; using System.Windows.Controls; using System.Windows.Controls.Primitives; using System.Windows.Interop; using System.Windows.Media; using MS.Internal; using MS.Win32; namespace System.Windows.Automation.Peers { /// public class TreeViewItemAutomationPeer : FrameworkElementAutomationPeer, IExpandCollapseProvider, ISelectionItemProvider, IScrollItemProvider { /// public TreeViewItemAutomationPeer(TreeViewItem owner): base(owner) { } /// override protected string GetClassNameCore() { return "TreeViewItem"; } /// override protected AutomationControlType GetAutomationControlTypeCore() { return AutomationControlType.TreeItem; } /// override public object GetPattern(PatternInterface patternInterface) { if (patternInterface == PatternInterface.ExpandCollapse) { return this; } else if (patternInterface == PatternInterface.SelectionItem) { return this; } else if (patternInterface == PatternInterface.ScrollItem) { return this; } return null; } /// void IExpandCollapseProvider.Expand() { if(!IsEnabled()) throw new ElementNotEnabledException(); TreeViewItem treeViewItem = (TreeViewItem)Owner; if (!treeViewItem.HasItems) { throw new InvalidOperationException(SR.Get(SRID.UIA_OperationCannotBePerformed)); } treeViewItem.IsExpanded = true; } /// void IExpandCollapseProvider.Collapse() { if(!IsEnabled()) throw new ElementNotEnabledException(); TreeViewItem treeViewItem = (TreeViewItem)Owner; if (!treeViewItem.HasItems) { throw new InvalidOperationException(SR.Get(SRID.UIA_OperationCannotBePerformed)); } treeViewItem.IsExpanded = false; } ExpandCollapseState IExpandCollapseProvider.ExpandCollapseState { get { TreeViewItem treeViewItem = (TreeViewItem)Owner; if (treeViewItem.HasItems) return treeViewItem.IsExpanded ? ExpandCollapseState.Expanded : ExpandCollapseState.Collapsed; else return ExpandCollapseState.LeafNode; } } // [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)] internal void RaiseExpandCollapseAutomationEvent(bool oldValue, bool newValue) { RaisePropertyChangedEvent( ExpandCollapsePatternIdentifiers.ExpandCollapseStateProperty, oldValue ? ExpandCollapseState.Expanded : ExpandCollapseState.Collapsed, newValue ? ExpandCollapseState.Expanded : ExpandCollapseState.Collapsed); } #region ISelectionItemProvider ////// Selects this element, removing any other element from the selection. /// void ISelectionItemProvider.Select() { ((TreeViewItem)Owner).IsSelected = true; } ////// Selects this item. /// void ISelectionItemProvider.AddToSelection() { TreeView treeView = ((TreeViewItem)Owner).ParentTreeView; // If TreeView already has a selected item different from current - we cannot add to selection and throw if (treeView == null || (treeView.SelectedItem != null && treeView.SelectedContainer != Owner)) { throw new InvalidOperationException(SR.Get(SRID.UIA_OperationCannotBePerformed)); } ((TreeViewItem)Owner).IsSelected = true; } ////// Unselects this item. /// void ISelectionItemProvider.RemoveFromSelection() { ((TreeViewItem)Owner).IsSelected = false; } ////// Returns whether the item is selected. /// bool ISelectionItemProvider.IsSelected { get { return ((TreeViewItem)Owner).IsSelected; } } ////// The logical element that supports the SelectionPattern for this item. /// IRawElementProviderSimple ISelectionItemProvider.SelectionContainer { get { ItemsControl parent = ((TreeViewItem)Owner).ParentItemsControl; if (parent != null) { AutomationPeer peer = UIElementAutomationPeer.FromElement(parent); if (peer != null) return ProviderFromPeer(peer); } return null; } } void IScrollItemProvider.ScrollIntoView() { ((TreeViewItem)Owner).BringIntoView(); } // [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)] internal void RaiseAutomationIsSelectedChanged(bool isSelected) { RaisePropertyChangedEvent( SelectionItemPatternIdentifiers.IsSelectedProperty, !isSelected, isSelected); } #endregion } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu

This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- HtmlEmptyTagControlBuilder.cs
- NameValueCache.cs
- SystemColors.cs
- Subtree.cs
- Rss20ItemFormatter.cs
- Memoizer.cs
- VerticalAlignConverter.cs
- Line.cs
- IPEndPoint.cs
- _SslSessionsCache.cs
- SEHException.cs
- BufferedWebEventProvider.cs
- ScriptResourceHandler.cs
- InvalidCastException.cs
- ArgumentOutOfRangeException.cs
- IdnMapping.cs
- SynchronizedPool.cs
- ExtensionQuery.cs
- OdbcException.cs
- MouseWheelEventArgs.cs
- XmlNodeReader.cs
- LocalBuilder.cs
- WebServiceData.cs
- HostExecutionContextManager.cs
- DataKeyCollection.cs
- InfiniteTimeSpanConverter.cs
- AppSettingsSection.cs
- UnmanagedBitmapWrapper.cs
- OptimizerPatterns.cs
- ThaiBuddhistCalendar.cs
- ThicknessConverter.cs
- DependencyPropertyConverter.cs
- LinqDataSourceSelectEventArgs.cs
- DataPagerFieldCollection.cs
- GenerateScriptTypeAttribute.cs
- InstanceDataCollection.cs
- Regex.cs
- TextLine.cs
- GridViewSelectEventArgs.cs
- RectangleHotSpot.cs
- CapabilitiesPattern.cs
- SqlNotificationEventArgs.cs
- VisualStyleElement.cs
- _BufferOffsetSize.cs
- ToolStripGripRenderEventArgs.cs
- ParagraphResult.cs
- ByValueEqualityComparer.cs
- AlternateViewCollection.cs
- XslTransform.cs
- ToggleButton.cs
- WebMessageEncodingElement.cs
- ValueUtilsSmi.cs
- ValueTable.cs
- SafeEventLogWriteHandle.cs
- Underline.cs
- RequiredAttributeAttribute.cs
- WinFormsSpinner.cs
- ToolTip.cs
- XPathQilFactory.cs
- CodeGenerationManager.cs
- FieldTemplateFactory.cs
- RequestCacheValidator.cs
- XPathNodeIterator.cs
- RequestSecurityTokenResponse.cs
- ParameterBuilder.cs
- PagesSection.cs
- ButtonStandardAdapter.cs
- DataBinding.cs
- TargetInvocationException.cs
- RelationalExpressions.cs
- DataPagerFieldCommandEventArgs.cs
- XamlParser.cs
- BuildProvider.cs
- TextBlock.cs
- PenCursorManager.cs
- HashStream.cs
- ListItemCollection.cs
- TextWriterTraceListener.cs
- GPRECT.cs
- TableAutomationPeer.cs
- TagPrefixCollection.cs
- WebPartEditVerb.cs
- baseshape.cs
- ASCIIEncoding.cs
- DuplicateWaitObjectException.cs
- DispatchChannelSink.cs
- ConfigurationCollectionAttribute.cs
- MappedMetaModel.cs
- HandleCollector.cs
- UnmanagedMemoryStream.cs
- DataGridViewSelectedRowCollection.cs
- HttpVersion.cs
- InfoCardBaseException.cs
- ErrorStyle.cs
- BasicHttpBindingCollectionElement.cs
- FaultException.cs
- DataTablePropertyDescriptor.cs
- SqlProcedureAttribute.cs
- WebSysDisplayNameAttribute.cs
- PointCollection.cs