ServiceXNameTypeConverter.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 / System.ServiceModel.Activities / System / ServiceModel / XamlIntegration / ServiceXNameTypeConverter.cs / 1305376 / ServiceXNameTypeConverter.cs
                        

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

namespace System.ServiceModel.XamlIntegration 
{
    using System.ComponentModel; 
    using System.Globalization; 
    using System.Runtime;
    using System.Xml.Linq; 

    public class ServiceXNameTypeConverter : TypeConverter
    {
        public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType) 
        {
            return XNameTypeConverterHelper.CanConvertFrom(sourceType); 
        } 

        public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value) 
        {
            string stringValue = value as string;
            if (!string.IsNullOrEmpty(stringValue))
            { 
                if (!IsQualifiedName(stringValue))
                { 
                    // We want the name to remain unqualified; we don't want XNameTypeConverter to add the default namespace 
                    return XName.Get(stringValue);
                } 
            }
            return XNameTypeConverterHelper.ConvertFrom(context, value) ?? base.ConvertFrom(context, culture, value);
        }
 
        public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType)
        { 
            return XNameTypeConverterHelper.CanConvertTo(destinationType); 
        }
 
        public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType)
        {
            XName name = value as XName;
            if (destinationType == typeof(string) && name != null) 
            {
                if (name.Namespace == XNamespace.None) 
                { 
                    // return unqualified name
                    return name.LocalName; 
                }
                else
                {
                    string result = (string)(XNameTypeConverterHelper.ConvertTo(context, value, destinationType) ?? 
                        base.ConvertTo(context, culture, value, destinationType));
                    if (IsQualifiedName(result)) 
                    { 
                        return result;
                    } 
                    else
                    {
                        // The name is in the default XAML namespace, so we need to fully-qualify it,
                        // or we'll interpret it as unqualified in ConvertFrom 
                        // Also need to escape the {} so it doesn't get interpreted as MarkupExtension
                        return name.ToString().Replace("{","{{").Replace("}","}}"); 
                    } 
                }
            } 
            else
            {
                return XNameTypeConverterHelper.ConvertTo(context, value, destinationType) ??
                    base.ConvertTo(context, culture, value, destinationType); 
            }
        } 
 
        bool IsQualifiedName(string name)
        { 
            return (name.IndexOf(':') >= 1) || (name.Length > 0 && name[0] == '{');
        }
    }
} 

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

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