DesignerProperties.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 / ComponentModel / DesignerProperties.cs / 1 / DesignerProperties.cs
                        

                        
                            //---------------------------------------------------------------------------- 
//
// 
//    Copyright (C) Microsoft Corporation.  All rights reserved.
//  
//
// 
// Description: 
//              Provides attached properties used to communicate with a designer.
//              See spec at: [....]/sites/Cider/Cross%20Team/Design%20Mode%20Property.doc 
//
// History:
//  7/07/2006: BrianPe, Created
// 
//---------------------------------------------------------------------------
 
namespace System.ComponentModel 
{
    using System; 
    using System.Windows;
    using MS.Internal.KnownBoxes;

    ///  
    /// The DesignerProperties class provides attached properties that can be used to
    /// query the state of a control when it is running in a designer.   Designer tools 
    /// will set values for properties on objects that are running in the designer. 
    /// 
    public static class DesignerProperties 
    {

        //-----------------------------------------------------
        // 
        //  Public Fields
        // 
        //----------------------------------------------------- 

 
        /// 
        /// Identifies the DesignerProperties.IsInDesignMode dependency property.
        /// This field is read only.
        ///  
        public static readonly DependencyProperty IsInDesignModeProperty =
            DependencyProperty.RegisterAttached( 
                 "IsInDesignMode", 
                 typeof(bool), typeof(DesignerProperties),
                 new FrameworkPropertyMetadata(BooleanBoxes.FalseBox, 
                 FrameworkPropertyMetadataOptions.Inherits |
                 FrameworkPropertyMetadataOptions.OverridesInheritanceBehavior));

 
        //------------------------------------------------------
        // 
        //  Public Methods 
        //
        //----------------------------------------------------- 


        /// 
        /// Returns the attached property IsInDesignMode value for the given dependency object. 
        ///
        /// This property will return true if the given element is running in the context of a 
        /// designer.  Component developers may use this property to perform different logic 
        /// in the context of a designer than they would when running in an application.  For
        /// example, expensive validation or connecting to an external resource like a server 
        /// may not make sense while an application is being developed.
        ///
        /// Designers may change the value of this property to move a control from design
        /// mode to run mode and back.  Components that make changes to their state based 
        /// on the value of this property should override the virtual OnPropertyChanged method
        /// and update their state if the IsInDesignMode property value changes. 
        ///  
        [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
        public static bool GetIsInDesignMode(DependencyObject element) 
        {
            if (element == null) throw new ArgumentNullException("element");
            return (bool)element.GetValue(IsInDesignModeProperty);
        } 

 
        ///  
        /// Sets the value of the IsInDesignMode attached property for the given dependency object.
        ///  
        public static void SetIsInDesignMode(DependencyObject element, bool value)
        {
            if (element == null) throw new ArgumentNullException("element");
            element.SetValue(IsInDesignModeProperty, value); 
        }
    } 
} 

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

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