How to: Create a Directory in Visual Basic

Use the CreateDirectory method of the My.Computer.FileSystem object to create directories.

If the directory already exists, no exception is thrown.

Use the CreateDirectory method by specifying the full path of the location where the directory should be created. This example creates the directory NewDirectory in C:\Documents and Settings\All Users\Documents.
```
My.Computer.FileSystem.CreateDirectory(
  "C:\Documents and Settings\All Users\Documents\NewDirectory")
```

Robust Programming

The following conditions may cause an exception:

The directory name is malformed. For example, it contains illegal characters or is only white space (ArgumentException).
The parent directory of the directory to be created is read-only (IOException).
The directory name is Nothing (ArgumentNullException).
The directory name is too long (PathTooLongException).
The directory name is a colon ":" (NotSupportedException).
The user does not have permission to create the directory (UnauthorizedAccessException).
The user lacks permissions in a partial-trust situation (SecurityException).

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