ViewManagerAttribute.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 / ndp / cdf / src / NetFx40 / Tools / System.Activities.Presentation / System / Activities / Presentation / Base / Documents / ViewManagerAttribute.cs / 1305376 / ViewManagerAttribute.cs
                        

                        
                            namespace System.Activities.Presentation.Documents {

    using System.Activities.Presentation;
    using System.Activities.Presentation.Internal.Properties; 
    using System;
    using System.Globalization; 
 
    /// 
    /// This attribute can be placed on the root of a model 
    /// object graph to specify what view manager should be
    /// used to present the view.
    /// 
    [AttributeUsage(AttributeTargets.Class, Inherited=true, AllowMultiple=false)] 
    sealed class ViewManagerAttribute : Attribute {
        private Type _viewManagerType; 
 

        ///  
        /// An empty ViewManagerAttribute allows you to "unset" the view manager from a base class.
        /// 
        public ViewManagerAttribute() {
        } 

        ///  
        /// Creates a new ViewManager attribute. 
        /// 
        /// The type of view manager to use.  The type specified must derive from ViewManager. 
        /// If viewManagerType is null.
        /// If viewManagerType does not specify a type that derives from ViewManager.
        public ViewManagerAttribute(Type viewManagerType) {
            if (viewManagerType == null) throw FxTrace.Exception.ArgumentNull("viewManagerType"); 
            if (!typeof(ViewManager).IsAssignableFrom(viewManagerType)) {
                throw FxTrace.Exception.AsError(new ArgumentException(string.Format(CultureInfo.CurrentCulture, 
                    Resources.Error_InvalidArgumentType, 
                    "viewManagerType",
                    typeof(ViewManager).FullName))); 
            }
            _viewManagerType = viewManagerType;
        }
 
        /// 
        /// The type of view manager to create for the model. 
        ///  
        public Type ViewManagerType {
            get { return _viewManagerType; } 
        }
    }
}

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

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