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1 using System;
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2 using System.Collections.Generic;
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3
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4 namespace BLToolkit.Reflection.Extension
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5 {
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6 public class MemberExtensionCollection : Dictionary<string,MemberExtension>
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7 {
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8 public new MemberExtension this[string memberName]
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9 {
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10 get
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11 {
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12 if (this == _null)
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13 return MemberExtension.Null;
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14
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15 MemberExtension value;
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16
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17 return TryGetValue(memberName, out value) ? value : MemberExtension.Null;
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18 }
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19 }
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20
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21 public void Add(MemberExtension memberInfo)
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22 {
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23 if (this != _null)
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24 Add(memberInfo.Name, memberInfo);
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25 }
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26
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27 private static readonly MemberExtensionCollection _null = new MemberExtensionCollection();
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28 public static MemberExtensionCollection Null
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29 {
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30 get { return _null; }
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31 }
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32 }
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33 }
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