Code:
/ DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Framework / System / Windows / Automation / Peers / GridViewColumnHeaderAutomationPeer.cs / 1 / GridViewColumnHeaderAutomationPeer.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 GridViewColumnHeaderAutomationPeer : FrameworkElementAutomationPeer, IInvokeProvider, ITransformProvider { /// public GridViewColumnHeaderAutomationPeer(GridViewColumnHeader owner) : base(owner) { } /// override protected AutomationControlType GetAutomationControlTypeCore() { return AutomationControlType.HeaderItem; } /// override protected string GetClassNameCore() { return "GridViewColumnHeader"; } /// override public object GetPattern(PatternInterface patternInterface) { if (patternInterface == PatternInterface.Invoke || patternInterface == PatternInterface.Transform) return this; return null; } void IInvokeProvider.Invoke() { if (!IsEnabled()) throw new ElementNotEnabledException(); GridViewColumnHeader owner = (GridViewColumnHeader)Owner; owner.AutomationClick(); } #region ITransformProvider bool ITransformProvider.CanMove { get { return false; } } //Note: CanResize can be false if Max/MinWidth,Height has been added on GridViewColumn/ColumnHeader bool ITransformProvider.CanResize { get { return true; } } bool ITransformProvider.CanRotate { get { return false; } } //Note: Don't support Move so far, if users do need this feature to reorder columns, //we can consider to add it later. (One concern is GVCH doesn't support reorder by moving itself) void ITransformProvider.Move(double x, double y) { throw new InvalidOperationException(SR.Get(SRID.UIA_OperationCannotBePerformed)); } void ITransformProvider.Resize(double width, double height) { if (!IsEnabled()) throw new ElementNotEnabledException(); if (width < 0) { throw new ArgumentOutOfRangeException("width"); } if (height < 0) { throw new ArgumentOutOfRangeException("height"); } GridViewColumnHeader header = Owner as GridViewColumnHeader; if (header != null) { if (header.Column != null) { header.Column.Width = width; } header.Height = height; } } void ITransformProvider.Rotate(double degrees) { throw new InvalidOperationException(SR.Get(SRID.UIA_OperationCannotBePerformed)); } #endregion } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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