public NFileDialogFileType( 
   System.string description,
   params System.string[] extensions
)

Parameters

description

The description of the file type.

extensions

The extensions associated with the file type without the dot. For example: "docx", "html", "pdf", "rtf", etc.

Target Platforms: Windows 11, Windows 10, Windows 7, Windows Server 2019, Windows Server 2016, Windows Server 2012 R2, Windows Server 2012, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later)

Reference

NFileDialogFileType Class
NFileDialogFileType Members
Overload List