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(.NET Core C#) Iterate over Files and Directories in Filesystem Directory TreeDemonstrates how to use the Chilkat DirTree object/class to iterate over the names of files and sub-directories in a directory tree. This example iterates over a directory tree that contains these files and sub-directories: a images (sub-directory) dudeA.gif Thumbs.db hamlet.xml pigs.xml Setup.exe b yyy (sub-directory) zzz (sub-directory) HelloWorld123.txt test123.txt dude.gif dudeC.gif hello.txt Thumbs.db test123.txtThe output for the code below looks like this: (sub-directory) Relative Path: a Absolute Path: c:\temp\abc123\a Absolute UNC Path: \\?\c:\temp\abc123\a ---- (sub-directory) Relative Path: b Absolute Path: c:\temp\abc123\b Absolute UNC Path: \\?\c:\temp\abc123\b ---- Size in bytes: 15 Relative Path: test123.txt Absolute Path: c:\temp\abc123\test123.txt Absolute UNC Path: \\?\c:\temp\abc123\test123.txt ---- Size in bytes: 279658 Relative Path: a\hamlet.xml Absolute Path: c:\temp\abc123\a\hamlet.xml Absolute UNC Path: \\?\c:\temp\abc123\a\hamlet.xml ---- (sub-directory) Relative Path: a\images Absolute Path: c:\temp\abc123\a\images Absolute UNC Path: \\?\c:\temp\abc123\a\images ---- Size in bytes: 8463 Relative Path: a\pigs.xml Absolute Path: c:\temp\abc123\a\pigs.xml Absolute UNC Path: \\?\c:\temp\abc123\a\pigs.xml ---- Size in bytes: 24576 Relative Path: a\Setup.exe Absolute Path: c:\temp\abc123\a\Setup.exe Absolute UNC Path: \\?\c:\temp\abc123\a\Setup.exe ---- Size in bytes: 6221 Relative Path: b\dude.gif Absolute Path: c:\temp\abc123\b\dude.gif Absolute UNC Path: \\?\c:\temp\abc123\b\dude.gif ---- Size in bytes: 6221 Relative Path: b\dudeC.gif Absolute Path: c:\temp\abc123\b\dudeC.gif Absolute UNC Path: \\?\c:\temp\abc123\b\dudeC.gif ---- Size in bytes: 13 Relative Path: b\hello.txt Absolute Path: c:\temp\abc123\b\hello.txt Absolute UNC Path: \\?\c:\temp\abc123\b\hello.txt ---- Size in bytes: 10240 Relative Path: b\Thumbs.db Absolute Path: c:\temp\abc123\b\Thumbs.db Absolute UNC Path: \\?\c:\temp\abc123\b\Thumbs.db ---- (sub-directory) Relative Path: b\yyy Absolute Path: c:\temp\abc123\b\yyy Absolute UNC Path: \\?\c:\temp\abc123\b\yyy ---- (sub-directory) Relative Path: b\zzz Absolute Path: c:\temp\abc123\b\zzz Absolute UNC Path: \\?\c:\temp\abc123\b\zzz ---- Size in bytes: 6221 Relative Path: a\images\dudeA.gif Absolute Path: c:\temp\abc123\a\images\dudeA.gif Absolute UNC Path: \\?\c:\temp\abc123\a\images\dudeA.gif ---- Size in bytes: 6144 Relative Path: a\images\Thumbs.db Absolute Path: c:\temp\abc123\a\images\Thumbs.db Absolute UNC Path: \\?\c:\temp\abc123\a\images\Thumbs.db ---- Size in bytes: 6080 Relative Path: b\zzz\HelloWorld123.txt Absolute Path: c:\temp\abc123\b\zzz\HelloWorld123.txt Absolute UNC Path: \\?\c:\temp\abc123\b\zzz\HelloWorld123.txt ---- Size in bytes: 15 Relative Path: b\zzz\test123.txt Absolute Path: c:\temp\abc123\b\zzz\test123.txt Absolute UNC Path: \\?\c:\temp\abc123\b\zzz\test123.txt ----
Chilkat.DirTree dirTree = new Chilkat.DirTree(); // Specify the root of the directory tree to be traversed. dirTree.BaseDir = "c:/temp/abc123"; // Indicate that we want to recursively traverse the tree. dirTree.Recurse = true; bool success; // Begin the directory tree traversal. success = dirTree.BeginIterate(); if (success != true) { Debug.WriteLine(dirTree.LastErrorText); return; } bool doneIterating = dirTree.DoneIterating; while (doneIterating != true) { // Examine the file or directory at the current traversal position: if (dirTree.IsDirectory == true) { Debug.WriteLine("(sub-directory)"); } else { Debug.WriteLine("Size in bytes: " + Convert.ToString(dirTree.FileSize32)); // If the file size is larger than 2GB, then get the size as a decimal string. // (Chilkat provides a FileSize64 method in *some* programming languages. The FileSizeStr property is added in Chilkat v9.5.0.88) Debug.WriteLine("Size in bytes: " + dirTree.FileSizeStr); } Debug.WriteLine("Relative Path: " + dirTree.RelativePath); Debug.WriteLine("Absolute Path: " + dirTree.FullPath); Debug.WriteLine("Absolute UNC Path: " + dirTree.FullUncPath); Debug.WriteLine("----"); // Advance to the next file or sub-directory in the tree traversal. success = dirTree.AdvancePosition(); if (success != true) { if (dirTree.DoneIterating != true) { Debug.WriteLine(dirTree.LastErrorText); return; } } doneIterating = dirTree.DoneIterating; } |
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