LayoutFarm.DzBoardSample.UIControllerBox.SetLocation C# (CSharp) Method

        public override void SetLocation(int left, int top)
        {
            var targetBox = this.TargetBox;
            int diffX = 0, diffY = 0;
            if (targetBox != null)
            {
                var targetBoxLocation = targetBox.GetGlobalLocation();
                diffX = left - targetBoxLocation.X;
                diffY = top - targetBoxLocation.Y;
            }
            base.SetLocation(left, top);
            //move target box together 
            if (targetBox != null)
            {
                //move target box too
                //get global 
                //targetBox.SetLocation(left + this.GridSize, top + this.GridSize);
                targetBox.SetLocation(
                    targetBox.Left + diffX + this.GridSize,
                    targetBox.Top + diffY + this.GridSize);
            }
        }
        protected override void OnKeyDown(UIKeyEventArgs e)

        void FindSelectedUserBoxes()
        {
            //find users box in selected area
            int j = this.userBoxes.Count;
            var primSelectionBox = selectionBox.GetPrimaryRenderElement(rootgfx);
            var primGlobalPoint  = primSelectionBox.GetGlobalLocation();
            var selectedRectArea = new Rectangle(primGlobalPoint, primSelectionBox.Size);

            this.selectionSet.Clear();

            List <CustomWidgets.EaseBox> selectedList = new List <CustomWidgets.EaseBox>();

            for (int i = 0; i < j; ++i)
            {
                var box         = userBoxes[i];
                var primElement = box.GetPrimaryRenderElement(rootgfx);
                if (!primElement.Visible)
                {
                    continue;
                }
                //get global area
                Point globalLocation  = primElement.GetGlobalLocation();
                var   userElementArea = new Rectangle(globalLocation, primElement.Size);
                if (selectedRectArea.Contains(userElementArea))
                {
                    //selected= true;
                    selectedList.Add(box);
                    //------
                    //create user controller box for the selected box
                    UIControllerBox userControllerBox = GetFreeControllerBox();
                    userControllerBox.TargetBox = box;
                    userControllerBox.SetLocation(box.Left - 5, box.Top - 5);
                    userControllerBox.SetSize(box.Width + 10, box.Height + 10);

                    userControllerBox.Visible = true;
                    userControllerBox.Focus();

                    selectionSet.AddSelection(userControllerBox);
                }
            }
        }