The DeleteFile method of the My.Computer.FileSystem object allows you to delete a file. Among the options it offers are: whether to send the deleted file to the Recycle Bin, whether to ask the user to confirm that the file should be deleted, and what to do when the user cancels the operation.
Use the DeleteFile method to delete the file. The following code demonstrates how to delete the file named test.txt.
My.Computer.FileSystem.DeleteFile("C:\test.txt")
Use the DeleteFile method to delete the file, setting showUI to AllDialogs. The following code demonstrates how to delete the file named test.txt and allow the user to confirm that the file should be deleted.
My.Computer.FileSystem.DeleteFile("C:\test.txt", _ FileIO.UIOption.AllDialogs, FileIO.RecycleOption.DeletePermanently, FileIO.UICancelOption.DoNothing)
Use the DeleteFile method to delete the file, specifying SendToRecycleBin for the recycle parameter. The following code demonstrates how to delete the file named test.txt and send it to the Recycle Bin.
My.Computer.FileSystem.DeleteFile("C:\test.txt", _ FileIO.UIOption.AllDialogs, FileIO.RecycleOption.SendToRecycleBin)
The following conditions may cause an exception:
The path is not valid for one of the following reasons: it is a zero-length string, it contains only white space, it contains invalid characters, or it is a device path (starts with \\.\) (ArgumentException).
The path is not valid because it is Nothing (ArgumentNullException).
The path exceeds the system-defined maximum length (PathTooLongException).
A file or folder name in the path contains a colon (:) or is in an invalid format (NotSupportedException).
The file is in use (IOException).
The user lacks necessary permissions to view the path (SecurityException).
The file does not exist (FileNotFoundException).
The user does not have permission to delete the file, or the file is read-only (UnauthorizedAccessException).
A partial-trust situation exists in which the user does not have sufficient permissions (SecurityException).
The user cancelled the operation and onUserCancel is set to Microsoft.VisualBasic.FileIO.UICancelOption.ThrowException (OperationCanceledException).
If you want to use wildcards to delete a file, you can create a local array of files and delete each one:
For Each tmpfile As String In IO.Directory.GetFiles(cDataPath, "t*.mht") My.Computer.FileSystem.DeleteFile(tmpfile) Next
string[] filesToDelete = Directory.GetFiles(Path, Pattern);Array.ForEach<string>(filesToDelete, File.Delete);