ScrollBarAutomationPeer.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 / ScrollBarAutomationPeer.cs / 1305600 / ScrollBarAutomationPeer.cs

                            using System; 
using System.Runtime.InteropServices;
using System.Windows;
using System.Windows.Automation.Provider;
using System.Windows.Controls; 
using System.Windows.Controls.Primitives;
 
using MS.Internal; 
using MS.Win32;
 
namespace System.Windows.Automation.Peers
{
    ///
    public class ScrollBarAutomationPeer : RangeBaseAutomationPeer 
    {
        /// 
        public ScrollBarAutomationPeer(ScrollBar owner): base(owner) 
        {
        } 

        ///
        override protected string GetClassNameCore()
        { 
            return "ScrollBar";
        } 
 
        ///
        override protected AutomationControlType GetAutomationControlTypeCore() 
        {
            return AutomationControlType.ScrollBar;
        }
 
        ///
        protected override Point GetClickablePointCore() 
        { 
            return new Point(double.NaN, double.NaN);
        } 

        ///
        protected override AutomationOrientation GetOrientationCore()
        { 
            return ((ScrollBar)Owner).Orientation == Orientation.Horizontal ?
                AutomationOrientation.Horizontal : 
                AutomationOrientation.Vertical; 
        }
 
        ///
        internal override void SetValueCore(double val)
        {
            double horizontalPercent = -1; 
            double verticalPercent = -1;
            ScrollBar sb = Owner as ScrollBar; 
            ScrollViewer sv = sb.TemplatedParent as ScrollViewer; 
            if (sv == null)
            { 
                base.SetValueCore(val);
            }
            else
            { 
                if (sb.Orientation == Orientation.Horizontal)
                { 
                    horizontalPercent = (val / (sv.ExtentWidth - sv.ViewportWidth)) * 100; 
                }
                else 
                {
                    verticalPercent = (val / (sv.ExtentHeight - sv.ViewportHeight)) * 100;
                }
 
                ScrollViewerAutomationPeer svAP = UIElementAutomationPeer.FromElement(sv) as ScrollViewerAutomationPeer;
                IScrollProvider scrollProvider = svAP as IScrollProvider; 
                scrollProvider.SetScrollPercent(horizontalPercent, verticalPercent); 
            }
        } 
    }
}


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

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