VitNX_ListView.OnMouseDown Method

protected override void OnMouseDown(MouseEventArgs e)
 {
     base.OnMouseDown(e);
 
     if (Items.Count == 0)
         return;
 
     if (e.Button != MouseButtons.Left && e.Button != MouseButtons.Right)
         return;
 
     var pos = OffsetMousePosition;
 
     var range = ItemIndexesInView().ToList();
 
     var top = range.Min();
     var bottom = range.Max();
     var width = Math.Max(ContentSize.Width, Viewport.Width);
 
     for (var i = top; i <= bottom; i++)
     {
         var rect = new Rectangle(0, i * ItemHeight, width, ItemHeight);
 
         if (rect.Contains(pos))
         {
             if (MultiSelect && ModifierKeys == Keys.Shift)
                 SelectAnchoredRange(i);
             else if (MultiSelect && ModifierKeys == Keys.Control)
                 ToggleItem(i);
             else
                 SelectItem(i);
         }
     }
 }