Vb.net delete contents of a text file

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. Skip to main content. David David 4, 2 2 gold badges 17 17 silver badges 32 32 bronze badges.

The fiddle works like I want, thank you! But I get an error in Visual Studio about the "Group. Mike - The Group. Name property was introduced in.

NET framework 4. What version are you targeting? Mike - Setup a breakpoint on TextBox4. ToArray and check what the value of names is. If it contains values then you may need to manually refresh the UI by using TextBox4. Refresh or TextBox4. Invalidate True — David. Actually I lied, it works fine. There is an open handle on the file, and the operating system is Windows XP or earlier. This open handle can result from enumerating directories and files. For more information, see How to: Enumerate Directories and Files.

Specify a file name with any relative or absolute path information for the path parameter. Wildcard characters cannot be included. Relative path information is interpreted as relative to the current working directory. After all, what exactly is an erased file? Going by that definition, that means we can effectively erase the contents of a file simply by replacing those contents with, well, nothing.

When we open a file for writing, anything we write to that file replaces everything currently in the file. With that single line of code, therefore, we replace the existing contents of Test.

Lo and behold, the file has been erased! But if you really do need to erase a file or a set of files, well, now you know how. Comments are closed.