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annotate MetroWpf/MetroWpf.Framework/Extensions/CollectionExtensions.cs @ 15:060f02cd4591

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author stevenh7776 stevenhollidge@hotmail.com
date Mon, 12 Mar 2012 23:05:21 +0800
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15
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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 MetroWpf
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5 {
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6 public static class CollectionExtensions
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7 {
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8 #region · Extensions ·
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9
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10 public static bool AddUnique<T>(this ICollection<T> collection, T value)
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11 {
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12 if (!collection.Contains(value))
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13 {
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14 collection.Add(value);
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15 return true;
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16 }
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17
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18 return false;
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19 }
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20
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21 public static int AddRangeUnique<T>(this ICollection<T> collection, IEnumerable<T> values)
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22 {
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23 var count = 0;
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24
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25 foreach (var value in values)
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26 {
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27 if (collection.AddUnique(value))
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28 {
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29 count++;
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30 }
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31 }
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32
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33 return count;
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34 }
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35
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36 public static void AddRange<T>(this ICollection<T> collection, IEnumerable<T> values)
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37 {
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38 foreach (T value in values)
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39 {
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40 collection.Add(value);
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41 }
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42 }
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43
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44 #endregion
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45 }
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46 }