TraversalRequest.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 / Base / System / Windows / Input / TraversalRequest.cs / 1305600 / TraversalRequest.cs
                        

                        
                             
using System;
namespace System.Windows.Input
{
    ///  
    /// Represents a request to an element to move focus to another control.
    ///  
    [Serializable()] 
    public class TraversalRequest
    { 
        /// 
        /// Constructor that requests passing FocusNavigationDirection
        /// 
        /// Type of focus traversal to perform 
        public TraversalRequest(FocusNavigationDirection focusNavigationDirection)
        { 
            if (focusNavigationDirection != FocusNavigationDirection.Next && 
                 focusNavigationDirection != FocusNavigationDirection.Previous &&
                 focusNavigationDirection != FocusNavigationDirection.First && 
                 focusNavigationDirection != FocusNavigationDirection.Last &&
                 focusNavigationDirection != FocusNavigationDirection.Left &&
                 focusNavigationDirection != FocusNavigationDirection.Right &&
                 focusNavigationDirection != FocusNavigationDirection.Up && 
                 focusNavigationDirection != FocusNavigationDirection.Down)
            { 
                throw new System.ComponentModel.InvalidEnumArgumentException("focusNavigationDirection", (int)focusNavigationDirection, typeof(FocusNavigationDirection)); 
            }
 
            _focusNavigationDirection = focusNavigationDirection;
        }

        ///  
        /// true if reached the end of child elements that should have focus
        ///  
        public bool Wrapped 
        {
            get{return _wrapped;} 
            set{_wrapped = value;}
        }

        ///  
        /// Determine how to move the focus
        ///  
        public FocusNavigationDirection FocusNavigationDirection { get { return _focusNavigationDirection; } } 

        private bool _wrapped; 
        private FocusNavigationDirection _focusNavigationDirection;

    }
 
    /// 
    /// Determine how to move the focus 
    ///  
    public enum FocusNavigationDirection
    { 
        /// 
        /// Move the focus to the next Control in Tab order.
        /// 
        Next, 

        ///  
        /// Move the focus to the previous Control in Tab order. Shift+Tab 
        /// 
        Previous, 

        /// 
        /// Move the focus to the first Control in Tab order inside the subtree.
        ///  
        First,
 
        ///  
        /// Move the focus to the last Control in Tab order inside the subtree.
        ///  
        Last,

        /// 
        /// Move the focus to the left. 
        /// 
        Left, 
 
        /// 
        /// Move the focus to the right. 
        /// 
        Right,

        ///  
        /// Move the focus to the up.
        ///  
        Up, 

        ///  
        /// Move the focus to the down.
        /// 
        Down,
 
        // If you add a new value you should also add a validation check to TraversalRequest constructor
    } 
} 

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

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