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POHow do I delete a directory with read-only files in C#?
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  1. POHow do I delete a directory with read-only files in C#?
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    copied!<p>I need to delete a directory that contains read-only files. Which approach is better:</p> <ul> <li><p>Using <code>DirectoryInfo.Delete()</code>, or,</p></li> <li><p><code>ManagementObject.InvokeMethod("Delete")</code>? </p></li> </ul> <p>With <code>DirectoryInfo.Delete()</code>, I have to manually turn off the read-only attribute for each file, but <code>ManagementObject.InvokeMethod("Delete")</code> doesn't appear to need to. Is there any situation where one is more preferable to the other?</p> <p>Sample code (test.txt is read only).</p> <h3>First way:</h3> <pre><code>DirectoryInfo dir = new DirectoryInfo(@"C:\Users\David\Desktop\"); dir.CreateSubdirectory("Test"); DirectoryInfo test = new DirectoryInfo(@"C:\Users\David\Desktop\Test\"); File.Copy(@"C:\Users\David\Desktop\test.txt", @"C:\Users\David\Desktop\Test\test.txt"); File.SetAttributes(@"C:\Users\David\Desktop\Test\test.txt", FileAttributes.Archive); test.Delete(true); </code></pre> <h3>Second way:</h3> <pre><code>DirectoryInfo dir = new DirectoryInfo(@"C:\Users\David\Desktop\"); dir.CreateSubdirectory("Test"); DirectoryInfo test = new DirectoryInfo(@"C:\Users\David\Desktop\Test\"); File.Copy(@"C:\Users\David\Desktop\test.txt", @"C:\Users\David\Desktop\Test\test.txt"); string folder = @"C:\Users\David\Desktop\Test"; string dirObject = "Win32_Directory.Name='" + folder + "'"; using (ManagementObject managementObject = new ManagementObject(dirObject)) { managementObject.Get(); ManagementBaseObject outParams = managementObject.InvokeMethod("Delete", null, null); // ReturnValue should be 0, else failure if (Convert.ToInt32(outParams.Properties["ReturnValue"].Value) != 0) { } } </code></pre>
 

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