FrameworkElementAutomationPeer.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Framework / System / Windows / Automation / Peers / FrameworkElementAutomationPeer.cs / 1305600 / FrameworkElementAutomationPeer.cs
                        

                        
                            using System; 
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.Interop; 
using System.Windows.Media;
using System.Windows.Markup; 

using MS.Internal;
using MS.Win32;
 
namespace System.Windows.Automation.Peers
{ 
    /// 
    public class FrameworkElementAutomationPeer : UIElementAutomationPeer
    { 
        ///
        public FrameworkElementAutomationPeer(FrameworkElement owner)
            : base(owner)
        { } 

        /// 
        protected override string GetAutomationIdCore() 
        {
            //  1. fetch AutomationProperties.AutomationIdProperty 
            string result = base.GetAutomationIdCore();

            if (string.IsNullOrEmpty(result))
            { 
                //  2. fetch x:Uid
                FrameworkElement owner = (FrameworkElement)Owner; 
                result = Owner.Uid; 

                if (string.IsNullOrEmpty(result)) 
                {
                    //  3. fetch FrameworkElement.NameProperty
                    result = owner.Name;
                } 
            }
 
            return result ?? string.Empty; 
        }
 
        ///
        override protected string GetNameCore()
        {
            string result = base.GetNameCore(); 
            if (string.IsNullOrEmpty(result))
            { 
                AutomationPeer labelAutomationPeer = GetLabeledByCore(); 
                if (labelAutomationPeer != null)
                    result = labelAutomationPeer.GetName(); 

                if (string.IsNullOrEmpty(result))
                    result = ((FrameworkElement)Owner).GetPlainText();
            } 

            return result ?? string.Empty; 
        } 

        /// 
        protected override string GetHelpTextCore()
        {
            string result = base.GetHelpTextCore();
            if (string.IsNullOrEmpty(result)) 
            {
                object toolTip = ((FrameworkElement)Owner).ToolTip; 
                if (toolTip != null) 
                {
                    result = toolTip as string; 
                    if (string.IsNullOrEmpty(result))
                    {
                        FrameworkElement toolTipElement = toolTip as FrameworkElement;
                        if (toolTipElement != null) 
                            result = toolTipElement.GetPlainText();
                    } 
                } 
            }
            return result ?? String.Empty; 
        }

    }
} 


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

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