ModelUtilities.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 / Model / ModelUtilities.cs / 1305376 / ModelUtilities.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------------------------

namespace System.Activities.Presentation.Model 
{
    using System; 
    using System.Collections.Generic; 
    using System.ComponentModel;
    using System.Windows.Markup; 

    // This class provides useful shared utility functions that are
    // needed by our ModelItemImpl class implementations.
    internal static class ModelUtilities 
    {
 
 
        // Returns a wrapped type converter for the given item.
        internal static TypeConverter GetConverter(IModelTreeItem item) 
        {
            return GetConverter(item.ModelTreeManager, item.ModelItem);
        }
 
        // Returns a wrapped converter for the given item.
        internal static TypeConverter GetConverter(ModelTreeManager modelTreeManager, ModelItem item) 
        { 
            return new ModelTypeConverter(modelTreeManager, XamlUtilities.GetConverter(item.ItemType));
        } 

        // Returns the default property on the item, or null if the item has
        internal static PropertyDescriptor GetDefaultProperty(ModelItem item)
        { 
            DefaultPropertyAttribute propAttr = TypeDescriptor.GetAttributes(item.ItemType)[typeof(DefaultPropertyAttribute)] as DefaultPropertyAttribute;
            if (propAttr != null && !string.IsNullOrEmpty(propAttr.Name)) 
            { 
                ModelProperty prop = item.Properties.Find(propAttr.Name);
                if (prop != null) 
                {
                    return new ModelPropertyDescriptor(prop);
                }
            } 
            return null;
        } 
 
        // Wraps an item's properties in PropertyDescriptors and returns a
        // collection of them. 
        internal static PropertyDescriptorCollection WrapProperties(ModelItem item)
        {
            List descriptors = new List();
            foreach (ModelProperty prop in item.Properties) 
            {
                descriptors.Add(new ModelPropertyDescriptor(prop)); 
            } 
            return new PropertyDescriptorCollection(descriptors.ToArray(), true);
        } 

    }
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

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