ListViewAutomationPeer.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Framework / System / Windows / Automation / Peers / ListViewAutomationPeer.cs / 1 / ListViewAutomationPeer.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 ListViewAutomationPeer : ListBoxAutomationPeer
    {
        /// 
        public ListViewAutomationPeer(ListView owner)
            : base(owner) 
        { 
            Invariant.Assert(owner != null);
        } 

        ///
        override protected AutomationControlType GetAutomationControlTypeCore()
        { 
            if (_viewAutomationPeer != null)
            { 
                return _viewAutomationPeer.GetAutomationControlType(); 
            }
            else 
            {
                return base.GetAutomationControlTypeCore();
            }
        } 

        /// 
        override protected string GetClassNameCore() 
        {
            return "ListView"; 
        }

        ///
        override public object GetPattern(PatternInterface patternInterface) 
        {
            object ret = null; 
            if (_viewAutomationPeer != null) 
            {
                ret = _viewAutomationPeer.GetPattern(patternInterface); 
                if (ret != null)
                {
                    return ret;
                } 
            }
 
            return base.GetPattern(patternInterface); 
        }
 
        ///
        protected override List GetChildrenCore()
        {
            if (_refreshItemPeers) 
            {
                _refreshItemPeers = false; 
                ItemPeers.Clear(); 
            }
 
            List ret = base.GetChildrenCore();

            if (_viewAutomationPeer != null)
            { 
                //If a custom view doesn't want to implement GetChildren details
                //just return null, we'll use the base.GetChildren as the return value 
                ret = _viewAutomationPeer.GetChildren(ret); 
            }
 
            return ret;
        }

        /// 
        protected override ItemAutomationPeer CreateItemAutomationPeer(object item)
        { 
            return _viewAutomationPeer == null ? base.CreateItemAutomationPeer(item) : _viewAutomationPeer.CreateItemAutomationPeer(item); 
        }
 
        /// 
        ///
        /// 
        protected internal IViewAutomationPeer ViewAutomationPeer 
        {
            // Note: see bug 1555137 for details. 
            // Never inline, as we don't want to unnecessarily link the 
            // automation DLL via the ISelectionProvider interface type initialization.
            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)] 
            get { return _viewAutomationPeer; }
            [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
            set
            { 
                if (_viewAutomationPeer != value)
                { 
                    _refreshItemPeers = true; 
                }
                _viewAutomationPeer = value; 
            }
        }

        #region Private Fields 

        private bool _refreshItemPeers = false; 
        private IViewAutomationPeer _viewAutomationPeer; 

        #endregion 
    }
}

 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.

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