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  • XML Serializable Generic Dictionary

    参考地址:http://weblogs.asp.net/pwelter34/archive/2006/05/03/444961.aspx
    简述:默认情况下,Dictionary是不支持XML序列化的,为了达到这个目的,我们需要自定义一个类型来做
     
    For some reason, the generic Dictionary in .net 2.0 is not XML serializable.  
    The following code snippet is a xml serializable generic dictionary.  
    The dictionary is serialzable by implementing the IXmlSerializable interface
        using System;
        using System.Collections.Generic;
        using System.Text;
        using System.Xml.Serialization;
     
        [XmlRoot("dictionary")]
        public class SerializableDictionary<TKey, TValue>
            : Dictionary<TKey, TValue>, IXmlSerializable
        {
            #region IXmlSerializable Members
            public System.Xml.Schema.XmlSchema GetSchema()
            {
                return null;
            }
     
            public void ReadXml(System.Xml.XmlReader reader)
            {
                XmlSerializer keySerializer = new XmlSerializer(typeof(TKey));
                XmlSerializer valueSerializer = new XmlSerializer(typeof(TValue));
     
                bool wasEmpty = reader.IsEmptyElement;
                reader.Read();
     
                if (wasEmpty)
                    return;
     
                while (reader.NodeType != System.Xml.XmlNodeType.EndElement)
                {
                    reader.ReadStartElement("item");
     
                    reader.ReadStartElement("key");
                    TKey key = (TKey)keySerializer.Deserialize(reader);
                    reader.ReadEndElement();
     
                    reader.ReadStartElement("value");
                    TValue value = (TValue)valueSerializer.Deserialize(reader);
                    reader.ReadEndElement();
     
                    this.Add(key, value);
     
                    reader.ReadEndElement();
                    reader.MoveToContent();
                }
                reader.ReadEndElement();
            }
     
            public void WriteXml(System.Xml.XmlWriter writer)
            {
                XmlSerializer keySerializer = new XmlSerializer(typeof(TKey));
                XmlSerializer valueSerializer = new XmlSerializer(typeof(TValue));
     
                foreach (TKey key in this.Keys)
                {
                    writer.WriteStartElement("item");
     
                    writer.WriteStartElement("key");
                    keySerializer.Serialize(writer, key);
                    writer.WriteEndElement();
     
                    writer.WriteStartElement("value");
                    TValue value = this[key];
                    valueSerializer.Serialize(writer, value);
                    writer.WriteEndElement();
     
                    writer.WriteEndElement();
                }
            }
            #endregion
        }
    Update:
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  • 原文地址:https://www.cnblogs.com/chenxizhang/p/1741453.html
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