添加viewModel

tangxu

2024-10-22 6a07c4c846ffbb1e93afdf0260e123e4c145f419

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using System;
using System.Globalization;
using System.Reflection;
using System.Runtime.Serialization;
using DPumpHydr.WinFrmUI.WenSkin.Json.Utilities;
 
namespace DPumpHydr.WinFrmUI.WenSkin.Json.Serialization
{
    /// <summary>
    /// The default serialization binder used when resolving and loading classes from type names.
    /// </summary>
    public class DefaultSerializationBinder : SerializationBinder
    {
        internal struct TypeNameKey : IEquatable<TypeNameKey>
        {
            internal readonly string AssemblyName;
 
            internal readonly string TypeName;
 
            public TypeNameKey(string assemblyName, string typeName)
            {
                AssemblyName = assemblyName;
                TypeName = typeName;
            }
 
            public override int GetHashCode()
            {
                return ((AssemblyName != null) ? AssemblyName.GetHashCode() : 0) ^ ((TypeName != null) ? TypeName.GetHashCode() : 0);
            }
 
            public override bool Equals(object obj)
            {
                if (!(obj is TypeNameKey))
                {
                    return false;
                }
                return Equals((TypeNameKey)obj);
            }
 
            public bool Equals(TypeNameKey other)
            {
                if (AssemblyName == other.AssemblyName)
                {
                    return TypeName == other.TypeName;
                }
                return false;
            }
        }
 
        internal static readonly DefaultSerializationBinder Instance = new DefaultSerializationBinder();
 
        private readonly ThreadSafeStore<TypeNameKey, Type> _typeCache = new ThreadSafeStore<TypeNameKey, Type>(GetTypeFromTypeNameKey);
 
        private static Type GetTypeFromTypeNameKey(TypeNameKey typeNameKey)
        {
            string assemblyName = typeNameKey.AssemblyName;
            string typeName = typeNameKey.TypeName;
            if (assemblyName != null)
            {
                Assembly assembly = Assembly.LoadWithPartialName(assemblyName);
                if (assembly == null)
                {
                    Assembly[] assemblies = AppDomain.CurrentDomain.GetAssemblies();
                    foreach (Assembly assembly2 in assemblies)
                    {
                        if (assembly2.FullName == assemblyName)
                        {
                            assembly = assembly2;
                            break;
                        }
                    }
                }
                if (assembly == null)
                {
                    throw new JsonSerializationException("Could not load assembly '{0}'.".FormatWith(CultureInfo.InvariantCulture, assemblyName));
                }
                Type type = assembly.GetType(typeName);
                if (type == null)
                {
                    throw new JsonSerializationException("Could not find type '{0}' in assembly '{1}'.".FormatWith(CultureInfo.InvariantCulture, typeName, assembly.FullName));
                }
                return type;
            }
            return Type.GetType(typeName);
        }
 
        /// <summary>
        /// When overridden in a derived class, controls the binding of a serialized object to a type.
        /// </summary>
        /// <param name="assemblyName">Specifies the <see cref="T:System.Reflection.Assembly" /> name of the serialized object.</param>
        /// <param name="typeName">Specifies the <see cref="T:System.Type" /> name of the serialized object.</param>
        /// <returns>
        /// The type of the object the formatter creates a new instance of.
        /// </returns>
        public override Type BindToType(string assemblyName, string typeName)
        {
            return _typeCache.Get(new TypeNameKey(assemblyName, typeName));
        }
 
        /// <summary>
        /// When overridden in a derived class, controls the binding of a serialized object to a type.
        /// </summary>
        /// <param name="serializedType">The type of the object the formatter creates a new instance of.</param>
        /// <param name="assemblyName">Specifies the <see cref="T:System.Reflection.Assembly" /> name of the serialized object. </param>
        /// <param name="typeName">Specifies the <see cref="T:System.Type" /> name of the serialized object. </param>
        public override void BindToName(Type serializedType, out string assemblyName, out string typeName)
        {
            assemblyName = serializedType.Assembly.FullName;
            typeName = serializedType.FullName;
        }
    }
}