protected override void OnMouseDown(MouseEventArgs e) { if (e.Button == MouseButtons.Left) { if (!this.IsInHoverArea(e.Location)) { this.resize_active = true; //zjisti stranu if (e.X < this.ResizeTolerance) { this.resize_side = CellResizeEventArgs.ResizeSide.Left; } else { this.resize_side = CellResizeEventArgs.ResizeSide.Right; } this.OnCellResizeStart(new CellResizeEventArgs(e, this.resize_side)); } } base.OnMouseDown(e); }