File AppendAllText Method (String, String)Kentico 8.1 API Reference
Opens a file, appends the specified string to the file, and then closes the file. If the file does not exist, this method creates a file, writes the specified string to the file, then closes the file.

Namespace: CMS.IO
Assembly: CMS.IO (in CMS.IO.dll) Version: 8.0.0.0 (8.1.5347.20411)
See Also