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1 using System;
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2 using System.Collections.Generic;
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3 using System.Xml;
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4 using System.Xml.Schema;
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5 using System.Xml.Serialization;
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6
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7 using BLToolkit.TypeBuilder;
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8
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9 namespace Demo.WebServices.ObjectModel
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10 {
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11 [Serializable]
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12 public class XmlMap<TKey, TValue>: Dictionary<TKey, TValue>, IXmlSerializable
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13 {
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14 private const string KEY_NAME = "k";
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15 private const string VALUE_NAME = "v";
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16
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17 private static readonly XmlSerializer<TKey> _keySerializer = new XmlSerializer<TKey>(KEY_NAME);
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18 private static readonly XmlSerializer<TValue> _valueSerializer = new XmlSerializer<TValue>(VALUE_NAME);
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19
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20 #region IXmlSerializable members
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21
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22 XmlSchema IXmlSerializable.GetSchema()
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23 {
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24 return null;
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25 }
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26
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27 void IXmlSerializable.ReadXml(XmlReader reader)
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28 {
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29 if (!reader.ReadToDescendant(KEY_NAME))
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30 {
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31 reader.Skip();
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32 return;
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33 }
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34
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35 do
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36 {
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37 Add(_keySerializer.Deserialize(reader),
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38 _valueSerializer.Deserialize(reader));
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39 }
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40 while (reader.NodeType != XmlNodeType.EndElement);
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41
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42 reader.ReadEndElement();
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43 }
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44
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45 void IXmlSerializable.WriteXml(XmlWriter writer)
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46 {
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47 foreach (KeyValuePair<TKey, TValue> pair in this)
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48 {
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49 _keySerializer .Serialize(writer, pair.Key);
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50 _valueSerializer.Serialize(writer, pair.Value);
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51 }
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52 }
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53
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54 #endregion
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55
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56 private class XmlSerializer<T>
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57 {
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58 private readonly XmlSerializer _instance;
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59
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60 public XmlSerializer(string elementName)
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61 {
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62 _instance = new XmlSerializer(
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63 TypeFactory.GetType(typeof(T)), new XmlRootAttribute(elementName));
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64 }
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65
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66 public void Serialize(XmlWriter writer, T value)
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67 {
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68 _instance.Serialize(writer, value);
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69 }
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70
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71 public T Deserialize(XmlReader reader)
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72 {
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73 return (T)_instance.Deserialize(reader);
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74 }
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75 }
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76 }
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77 } |
