The Clear method removes all notes in the control. Use the Remove method to remove a specific Note in the collection. Use the Add method to add new notes to the chart area. Use the NoteFromPoint property to access the note from the cursor. Use the ShowNotes property to show or hide the notes in the control. Use the Visible property to show or hide a specific note, or use the PartVisible property to specify whether the start or ending part of the note is visible or hidden.