UndoCheckOut Method
The UndoCheckOut method of the SPFile class undoes the file check-out.
Example
The following code example undoes the check-out for files in the Shared Documents document library of a subsite if the specified user is the one who checked them out.
This example requires using directives (Imports in Visual Basic) for both the Microsoft.SharePoint and Microsoft.SharePoint.WebControls namespaces.
Requirements
Platforms: Microsoft Windows Server 2003
Security: Code Access Security