FileTypeFilterAttribute Properties

Specifies a file type filter in the Open dialog’s “Files of type” box. You can apply this attribute to file data business classes, interfaces, and their properties in ASP.NET Core Blazor and Windows Forms applications.

Name	Description
FileTypesFilter	Returns the filter string passed to the dialog windows representing the Open dialog.
FilterCaption	Specifies the file type filter description.
FilterID	Indicates the current file type filter identifier.
Index	Specifies the file type filter’s index.
TypeId	When implemented in a derived class, gets a unique identifier for this Attribute. Inherited from Attribute.