public ListBoxDragDropHelper(ListBox draglistbox, ListBox droplistbox, DListBoxDragDropHelperEventListener ondrop) { if (draglistbox == null || droplistbox == null) { throw new Exception("Null listbox"); } if (draglistbox.FindForm() != droplistbox.FindForm()) { throw new Exception("ListBox not on same form"); } DragListBox = draglistbox; DropListBox = droplistbox; OnDrop = ondrop; DragListBox.MouseDown += DragListBox_MouseDown; DragListBox.MouseMove += DragListBox_MouseMove; DragListBox.MouseUp += DragListBox_MouseUp; DragListBox.QueryContinueDrag += DragListBox_QueryContinueDrag; DragListBox.GiveFeedback += DragListBox_GiveFeedback; DropListBox.DragOver += DropListBox_DragOver; DropListBox.DragDrop += DropListBox_DragDrop; DropListBox.DragLeave += DropListBox_DragLeave; }
public ListBoxDragDropHelper(ListBox draglistbox, ListBox droplistbox, DListBoxDragDropHelperEventListener ondrop) : this(draglistbox, droplistbox, ondrop, typeof(ListBox)) { }