The Trash Can collects the files and folders that you delete. They are not actually removed from the file system until the trash is "emptied." You can only change your mind and restore a file you've put in the Trash Can if the Trash Can hasn't been emptied.
Click the Trash Can control in the Front Panel.
Choose Put in Trash from the object's pop-up menu (displayed by pressing Shift+F10 or mouse button 3).
Or, select the object's icon, then choose Put in Trash from the Selected menu.
Or, drag the object's icon and drop it onto the Trash Can control in the Front Panel.
Or, drag an object's icon to the open Trash Can window.
Drag the object from the Trash Can window to File Manager.
Or, in the Trash Can window, select the object you want to restore and choose Put back from the File menu.
Or, choose Put back from the object's pop-up menu (displayed by pressing Shift+F10 or mouse button 3).
When you delete a file permanently, it cannot be recovered (unless you have a backup mechanism.)
Select individual objects, or choose Select All from the File menu.