Returns the destination file name pattern used to name the file during writing.
When the Dest Data Definition is a File Definition, you can use this property to modify the name of the output file after mapping.
The filename property is a pattern - therefore you can set it directly to the name you desire, or you can include Tags within the name.
Tags will be resolved when the file is being saved.
Declaration: property FileName: string
An example of its use, follows.