Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WF / Common / AuthoringOM / Serializer / ListSurrogate.cs / 1305376 / ListSurrogate.cs
namespace System.Workflow.ComponentModel.Serialization { using System; using System.Xml; using System.Runtime.Serialization; using System.Reflection; using System.IO; using System.Runtime.Serialization.Formatters.Binary; using System.Collections; using System.Collections.Generic; #region ListSurrogate internal sealed class ListSurrogate : ISerializationSurrogate { internal ListSurrogate() { } void ISerializationSurrogate.GetObjectData(object obj, SerializationInfo info, StreamingContext context) { if (!obj.GetType().IsGenericType || obj.GetType().GetGenericTypeDefinition() != typeof(List<>)) throw new ArgumentException(SR.GetString(SR.Error_InvalidArgumentValue), "obj"); Type[] args = obj.GetType().GetGenericArguments(); if (args.Length != 1) throw new ArgumentException(SR.GetString(SR.Error_InvalidArgumentValue), "obj"); ArrayList items = new ArrayList(obj as IList); if (items.Count == 1) info.AddValue("item", items[0]); else info.AddValue("items", items.ToArray()); info.AddValue("itemType", args[0]); info.SetType(typeof(ListRef)); } object ISerializationSurrogate.SetObjectData(object obj, SerializationInfo info, StreamingContext context, ISurrogateSelector selector) { return null; } #region ListRef [Serializable] private sealed class ListRef : IObjectReference, IDeserializationCallback { [OptionalField] private IList items = null; [OptionalField] private object item = null; private Type itemType = null; [NonSerialized] private object list = null; Object IObjectReference.GetRealObject(StreamingContext context) { if (this.list == null) { Type listType = typeof(List).GetGenericTypeDefinition().MakeGenericType(itemType); this.list = listType.GetConstructor(Type.EmptyTypes).Invoke(null); } return this.list; } void IDeserializationCallback.OnDeserialization(Object sender) { if (this.list != null) { MethodInfo addMethod = this.list.GetType().GetMethod("Add"); if (addMethod == null) throw new NullReferenceException("addMethod"); if (this.items != null) { for (int n = 0; n < items.Count; n++) addMethod.Invoke(this.list, new object[] { this.items[n] }); } else { addMethod.Invoke(this.list, new object[] { this.item }); } this.list = null; } } } #endregion } #endregion } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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