Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WF / Common / AuthoringOM / Serializer / DictionarySurrogate.cs / 1305376 / DictionarySurrogate.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 DictionarySurrogate internal sealed class DictionarySurrogate : ISerializationSurrogate { void ISerializationSurrogate.GetObjectData(object obj, SerializationInfo info, StreamingContext context) { if (!obj.GetType().IsGenericType || obj.GetType().GetGenericTypeDefinition() != typeof(Dictionary<,>)) throw new ArgumentException(SR.GetString(SR.Error_InvalidArgumentValue), "obj"); Type[] args = obj.GetType().GetGenericArguments(); if (args.Length != 2) throw new ArgumentException(SR.GetString(SR.Error_InvalidArgumentValue), "obj"); PropertyInfo keysProperty = obj.GetType().GetProperty("Keys"); if (keysProperty == null) throw new NullReferenceException("keysProperty"); ArrayList keys = new ArrayList(keysProperty.GetValue(obj, null) as ICollection); PropertyInfo valuesProperty = obj.GetType().GetProperty("Values"); if (valuesProperty == null) throw new NullReferenceException("valuesProperty"); ArrayList values = new ArrayList(valuesProperty.GetValue(obj, null) as ICollection); if (keys.Count == 1) { info.AddValue("key", keys[0]); info.AddValue("value", values[0]); } else if (keys.Count > 1) { info.AddValue("keys", keys.ToArray()); info.AddValue("values", values.ToArray()); } info.AddValue("keyType", args[0]); info.AddValue("valueType", args[1]); info.SetType(typeof(DictionaryRef)); } object ISerializationSurrogate.SetObjectData(object obj, SerializationInfo info, StreamingContext context, ISurrogateSelector selector) { return null; } #region DictionaryRef [Serializable] private sealed class DictionaryRef : IObjectReference, IDeserializationCallback { [OptionalField] private IList keys = null; [OptionalField] private IList values = null; [OptionalField] private object key = null; [OptionalField] private object value = null; private Type keyType = null; private Type valueType = null; [NonSerialized] private object dictionary = null; Object IObjectReference.GetRealObject(StreamingContext context) { if (this.dictionary == null) { Type dictionaryType = typeof(Dictionary).GetGenericTypeDefinition().MakeGenericType(keyType, valueType); this.dictionary = dictionaryType.GetConstructor(Type.EmptyTypes).Invoke(null); } return this.dictionary; } void IDeserializationCallback.OnDeserialization(Object sender) { if (this.dictionary != null) { MethodInfo addMethod = this.dictionary.GetType().GetMethod("Add"); if (addMethod == null) throw new NullReferenceException("addMethod"); object[] kvp = new object[2]; if (this.keys != null) { for (int index = 0; index < this.keys.Count; index++) { kvp[0] = this.keys[index]; kvp[1] = this.values[index]; addMethod.Invoke(this.dictionary, kvp); } } else if (this.key != null) { kvp[0] = this.key; kvp[1] = this.value; addMethod.Invoke(this.dictionary, kvp); } } this.dictionary = 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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