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annotate MetroWpf/MetroWpf.Framework/Extensions/FileInfoExtensions.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 using System.IO;
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4
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5 namespace MetroWpf
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6 {
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7 /// <summary>
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8 /// Extension methods for the FileInfo and FileInfo-Array classes
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9 /// </summary>
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10 public static class FileInfoExtensions
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11 {
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12 #region · Extensions ·
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13
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14 /// <summary>
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15 /// Renames a file.
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16 /// </summary>
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17 /// <param name="file">The file.</param>
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18 /// <param name="newName">The new name.</param>
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19 /// <returns>The renamed file</returns>
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20 /// <example>
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21 /// <code>
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22 /// var file = new FileInfo(@"c:\test.txt");
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23 /// file.Rename("test2.txt");
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24 /// </code></example>
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25 public static FileInfo Rename(this FileInfo file, string newName)
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26 {
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27 var filePath = Path.Combine(Path.GetDirectoryName(file.FullName), newName);
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28
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29 file.MoveTo(filePath);
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30
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31 return file;
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32 }
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33
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34 /// <summary>
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35 /// Renames a without changing its extension.
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36 /// </summary>
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37 /// <param name="file">The file.</param>
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38 /// <param name="newName">The new name.</param>
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39 /// <returns>The renamed file</returns>
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40 /// <example>
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41 /// <code>
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42 /// var file = new FileInfo(@"c:\test.txt");
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43 /// file.RenameFileWithoutExtension("test3");
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44 /// </code></example>
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45 public static FileInfo RenameFileWithoutExtension(this FileInfo file, string newName)
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46 {
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47 var fileName = string.Concat(newName, file.Extension);
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48
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49 file.Rename(fileName);
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50
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51 return file;
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52 }
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53
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54 /// <summary>
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55 /// Changes the files extension.
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56 /// </summary>
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57 /// <param name="file">The file.</param>
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58 /// <param name="newExtension">The new extension.</param>
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59 /// <returns>The renamed file</returns>
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60 /// <example>
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61 /// <code>
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62 /// var file = new FileInfo(@"c:\test.txt");
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63 /// file.ChangeExtension("xml");
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64 /// </code></example>
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65 public static FileInfo ChangeExtension(this FileInfo file, string newExtension)
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66 {
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67 newExtension = newExtension.EnsureStartsWith(".");
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68
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69 var fileName = string.Concat(Path.GetFileNameWithoutExtension(file.FullName), newExtension);
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70
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71 file.Rename(fileName);
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72
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73 return file;
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74 }
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75
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76 /// <summary>
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77 /// Changes the extensions of several files at once.
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78 /// </summary>
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79 /// <param name="files">The files.</param>
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80 /// <param name="newExtension">The new extension.</param>
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81 /// <returns>The renamed files</returns>
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82 /// <example>
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83 /// <code>
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84 /// var files = directory.GetFiles("*.txt", "*.xml");
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85 /// files.ChangeExtensions("tmp");
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86 /// </code></example>
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87 public static FileInfo[] ChangeExtensions(this FileInfo[] files, string newExtension)
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88 {
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89 files.ForEach(f => f.ChangeExtension(newExtension));
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90
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91 return files;
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92 }
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93
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94 /// <summary>
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95 /// Deletes several files at once and consolidates any exceptions.
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96 /// </summary>
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97 /// <param name="files">The files.</param>
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98 /// <example>
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99 /// <code>
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100 /// var files = directory.GetFiles("*.txt", "*.xml");
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101 /// files.Delete()
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102 /// </code></example>
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103 public static void Delete(this FileInfo[] files)
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104 {
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105 files.Delete(true);
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106 }
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107
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108 /// <summary>
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109 /// Deletes several files at once and optionally consolidates any exceptions.
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110 /// </summary>
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111 /// <param name="files">The files.</param>
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112 /// <param name="consolidateExceptions">if set to <c>true</c> exceptions are consolidated and the processing is not interrupted.</param>
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113 /// <example>
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114 /// <code>
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115 /// var files = directory.GetFiles("*.txt", "*.xml");
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116 /// files.Delete()
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117 /// </code></example>
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118 public static void Delete(this FileInfo[] files, bool consolidateExceptions)
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119 {
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120 List<Exception> exceptions = null;
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121
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122 foreach (var file in files)
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123 {
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124 try
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125 {
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126 file.Delete();
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127 }
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128 catch (Exception e)
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129 {
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130 if (consolidateExceptions)
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131 {
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132 if (exceptions == null)
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133 {
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134 exceptions = new List<Exception>();
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135 }
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136
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137 exceptions.Add(e);
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138 }
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139 else
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140 {
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141 throw;
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142 }
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143 }
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144 }
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145
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146 if ((exceptions != null) && (exceptions.Count > 0))
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147 {
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148 throw new CombinedException
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149 (
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150 "Error while deleting one or several files, see InnerExceptions array for details.",
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151 exceptions.ToArray()
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152 );
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153 }
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154 }
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155
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156 /// <summary>
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157 /// Copies several files to a new folder at once and consolidates any exceptions.
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158 /// </summary>
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159 /// <param name="files">The files.</param>
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160 /// <param name="targetPath">The target path.</param>
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161 /// <returns>The newly created file copies</returns>
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162 /// <example>
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163 /// <code>
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164 /// var files = directory.GetFiles("*.txt", "*.xml");
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165 /// var copiedFiles = files.CopyTo(@"c:\temp\");
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166 /// </code></example>
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167 public static FileInfo[] CopyTo(this FileInfo[] files, string targetPath)
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168 {
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169 return files.CopyTo(targetPath, true);
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170 }
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171
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172 /// <summary>
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173 /// Copies several files to a new folder at once and optionally consolidates any exceptions.
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174 /// </summary>
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175 /// <param name="files">The files.</param>
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176 /// <param name="targetPath">The target path.</param>
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177 /// <param name="consolidateExceptions">if set to <c>true</c> exceptions are consolidated and the processing is not interrupted.</param>
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178 /// <returns>The newly created file copies</returns>
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179 /// <example>
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180 /// <code>
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181 /// var files = directory.GetFiles("*.txt", "*.xml");
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182 /// var copiedFiles = files.CopyTo(@"c:\temp\");
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183 /// </code></example>
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184 public static FileInfo[] CopyTo(this FileInfo[] files, string targetPath, bool consolidateExceptions)
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185 {
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186 var copiedfiles = new List<FileInfo>();
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187 List<Exception> exceptions = null;
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188
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189 foreach (var file in files)
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190 {
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191 try
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192 {
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193 var fileName = Path.Combine(targetPath, file.Name);
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194
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195 copiedfiles.Add(file.CopyTo(fileName));
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196 }
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197 catch (Exception e)
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198 {
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199 if (consolidateExceptions)
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200 {
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201 if (exceptions == null)
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202 {
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203 exceptions = new List<Exception>();
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204 }
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205
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206 exceptions.Add(e);
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207 }
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208 else
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209 {
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210 throw;
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211 }
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212 }
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213 }
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214
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215 if ((exceptions != null) && (exceptions.Count > 0))
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216 {
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217 throw new CombinedException
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218 (
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219 "Error while copying one or several files, see InnerExceptions array for details.",
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220 exceptions.ToArray()
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221 );
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222 }
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223
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224 return copiedfiles.ToArray();
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225 }
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226
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227 /// <summary>
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228 /// Moves several files to a new folder at once and optionally consolidates any exceptions.
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229 /// </summary>
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230 /// <param name="files">The files.</param>
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231 /// <param name="targetPath">The target path.</param>
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232 /// <returns>The moved files</returns>
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233 /// <example>
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234 /// <code>
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235 /// var files = directory.GetFiles("*.txt", "*.xml");
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236 /// files.MoveTo(@"c:\temp\");
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237 /// </code></example>
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238 public static FileInfo[] MoveTo(this FileInfo[] files, string targetPath)
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239 {
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240 return files.MoveTo(targetPath, true);
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241 }
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242
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243 /// <summary>
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244 /// Movies several files to a new folder at once and optionally consolidates any exceptions.
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245 /// </summary>
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246 /// <param name="files">The files.</param>
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247 /// <param name="targetPath">The target path.</param>
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248 /// <param name="consolidateExceptions">if set to <c>true</c> exceptions are consolidated and the processing is not interrupted.</param>
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249 /// <returns>The moved files</returns>
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250 /// <example>
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251 /// <code>
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252 /// var files = directory.GetFiles("*.txt", "*.xml");
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253 /// files.MoveTo(@"c:\temp\");
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254 /// </code></example>
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255 public static FileInfo[] MoveTo(this FileInfo[] files, string targetPath, bool consolidateExceptions)
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256 {
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257 List<Exception> exceptions = null;
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258
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259 foreach (var file in files)
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260 {
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261 try
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262 {
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263 var fileName = Path.Combine(targetPath, file.Name);
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264
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265 file.MoveTo(fileName);
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266 }
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267 catch (Exception e)
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268 {
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269 if (consolidateExceptions)
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270 {
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271 if (exceptions == null)
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272 {
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273 exceptions = new List<Exception>();
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274 }
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275
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276 exceptions.Add(e);
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277 }
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278 else
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279 {
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280 throw;
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281 }
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282 }
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283 }
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284
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285 if ((exceptions != null) && (exceptions.Count > 0))
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286 {
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287 throw new CombinedException
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288 (
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289 "Error while moving one or several files, see InnerExceptions array for details.",
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290 exceptions.ToArray()
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291 );
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292 }
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293
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294 return files;
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295 }
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296
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297 /// <summary>
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298 /// Sets file attributes for several files at once
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299 /// </summary>
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300 /// <param name="files">The files.</param>
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301 /// <param name="attributes">The attributes to be set.</param>
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302 /// <returns>The changed files</returns>
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303 /// <example>
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304 /// <code>
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305 /// var files = directory.GetFiles("*.txt", "*.xml");
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306 /// files.SetAttributes(FileAttributes.Archive);
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307 /// </code></example>
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308 public static FileInfo[] SetAttributes(this FileInfo[] files, FileAttributes attributes)
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309 {
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310 foreach (var file in files)
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311 {
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312 file.Attributes = attributes;
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313 }
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314
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315 return files;
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316 }
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317
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318 /// <summary>
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319 /// Appends file attributes for several files at once (additive to any existing attributes)
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320 /// </summary>
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321 /// <param name="files">The files.</param>
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322 /// <param name="attributes">The attributes to be set.</param>
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323 /// <returns>The changed files</returns>
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324 /// <example>
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325 /// <code>
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326 /// var files = directory.GetFiles("*.txt", "*.xml");
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327 /// files.SetAttributesAdditive(FileAttributes.Archive);
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328 /// </code></example>
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329 public static FileInfo[] SetAttributesAdditive(this FileInfo[] files, FileAttributes attributes)
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330 {
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331 foreach (var file in files)
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332 {
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333 file.Attributes = (file.Attributes | attributes);
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334 }
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335
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336 return files;
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337 }
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338
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339 #endregion
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340 }
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341 }