To move a type to another file
Select a class, interface, struct, or enum in
Class Viewor Object Browser, or position the caret at its name in the editor.
On the ReSharper menu or context menu, choose
Refactor | Move, or press F6. The Movedrop-down list appears, choose Move to Another Filecommand. The Move to Another Filedialog box opens:
New file nametext box, type the file name. You can specify an existing file or a name for a new file. In the latter case, the new file will be created in the current folder.
Next. The new file with the specified name is created in the same folder. Names and references are updated immediately.