This example writes a string to a text file using the WriteLine method of the StreamWriter class.ExampleDim file As New System.IO.StreamWriter("c:test.txt")file.WriteLine("Here is the first line.")file.Close()Compiling the Code
This example requires: A reference to System namespace. Robust Programming
The following conditions may cause an exception: The file exists and is read-only (IOException Class). The disk is full (IOException Class). The pathname is too long (PathTooLongException Class). Security
This example creates a new file, if the file does not already exist. If an application needs to create a file, that application needs Create access for the folder (see Access Control). If the file already exists, the application needs only Write access, a lesser privilege. Where possible, it is more secure to create the file during deployment, and only grant Read access to a single file, rather than Create access for a folder.