TypeElement.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 / fx / src / Services / Web / System / Web / Services / Configuration / TypeElement.cs / 1305376 / TypeElement.cs
                        

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

namespace System.Web.Services.Configuration { 
    using System;
    using System.Configuration; 
    using System.ComponentModel; 
    using System.Collections.Generic;
    using System.Diagnostics; 
    using System.Globalization;
    using System.Security.Permissions;

    public sealed class TypeElement : ConfigurationElement { 
        // These three constructors are used by the configuration system.
        public TypeElement() : base() { 
            this.properties.Add(this.type); 
        }
 
        public TypeElement(string type) : this() {
            base[this.type] = new TypeAndName(type);
        }
 
        public TypeElement(Type type) : this(type.AssemblyQualifiedName) {
        } 
 
        [ConfigurationProperty("type", IsKey = true)]
        [TypeConverter(typeof(TypeAndNameConverter))] 
        public Type Type {
            get { return ((TypeAndName)base[this.type]).type; }
            set {
                if (value == null) { 
                    throw new ArgumentNullException("value");
                } 
                base[this.type] = new TypeAndName(value); 
            }
        } 
        protected override ConfigurationPropertyCollection Properties {
            get { return this.properties; }
        }
 

        ConfigurationPropertyCollection properties = new ConfigurationPropertyCollection(); 
        readonly ConfigurationProperty type = new ConfigurationProperty("type", typeof(TypeAndName), null, new TypeAndNameConverter(), null, ConfigurationPropertyOptions.IsKey); 
    }
 
    class TypeAndName
    {
        public TypeAndName(string name)
        { 
            this.type = Type.GetType(name, true, true);
            this.name = name; 
        } 

        public TypeAndName(Type type) 
        {
            this.type = type;
        }
 
        public override int GetHashCode()
        { 
            return type.GetHashCode(); 
        }
 
        public override bool Equals(object comparand)
        {
            return type.Equals(((TypeAndName) comparand).type);
        } 

        public readonly Type type; 
        public readonly string name; 
    }
 
    class TypeAndNameConverter : TypeConverter {
        public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType) {
            if (sourceType == typeof(string)) {
                return true; 
            }
            return base.CanConvertFrom(context, sourceType); 
        } 

        public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value) { 
            if (value is string) {
                return new TypeAndName((string) value);
            }
 
            return base.ConvertFrom(context, culture, value);
        } 
 
        public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) {
            if (destinationType == typeof(string)) { 
                TypeAndName castedValue = (TypeAndName) value;
                return castedValue.name == null ? castedValue.type.AssemblyQualifiedName : castedValue.name;
            }
 
            return base.ConvertTo(context, culture, value, destinationType);
        } 
    } 
}

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

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