public int SaveNote(Note note, LinkNote linkNote)
{
this.Context.Notes.InsertOnSubmit(note);
this.Context.SubmitChanges();
linkNote.NoteId = note.Id;
this.Context.LinkNotes.InsertOnSubmit(linkNote);
this.Context.SubmitChanges();
return(note.Id);
}
public T Previous()
{
if (count == 0)
{
return(default(T));
}
else
{
Note = Note.PreNote;
return(Note.CurrentNote);
}
}
public T Next()
{
if (count == 0)
{
return(default(T));
}
else
{
Note = Note.NextNote;
return(Note.CurrentNote);
}
}
public int Delete()
{
if (count == 0)
{
throw new Exception("链表为空,无法删除");
}
if (count == 1)
{
Note = new LinkNote <T>();
}
else
{
Note.PreNote.NextNote = Note.NextNote;
Note.NextNote.PreNote = Note.PreNote;
Note = Note.NextNote;
}
count = count - 1;
return(count);
}
public int Add(T NewNote)
{
LinkNote <T> CurrenteNote = new LinkNote <T>();
CurrenteNote.CurrentNote = NewNote;
if (Note.CurrentNote == null || count == 0)
{
CurrenteNote.NextNote = CurrenteNote;
CurrenteNote.PreNote = CurrenteNote;
Note = CurrenteNote;
}
else
{
Note.NextNote.PreNote = CurrenteNote;
CurrenteNote.NextNote = Note.NextNote;
Note.NextNote = CurrenteNote;
CurrenteNote.PreNote = Note;
}
count = count + 1;
return(count);
}
public CircleLink()
{
Note = new LinkNote <T>();
}