ARCed.Database.Actors.ActorParametersForm.ChartMouseMove C# (CSharp) Метод

        void ChartMouseMove(object sender, MouseEventArgs e)
        {
            var result = (sender as Chart).HitTest(e.X, e.Y);
            if (result.ChartElementType == ChartElementType.PlottingArea ||
                result.ChartElementType == ChartElementType.DataPoint ||
                result.ChartElementType == ChartElementType.Gridlines)
            {

                Tuple<int, int> point = this.GetAxisValuesFromMouse(sender as Chart, e.X, e.Y);
                this.labelCoordX.Text = "X: " + point.Item1.ToString(CultureInfo.InvariantCulture);
                this.labelCoordY.Text = "Y: " + point.Item2.ToString(CultureInfo.InvariantCulture);
                if (this._mouseDown)
                {
                    int index = this.tabControlParameters.SelectedIndex;
                    Table parameters = this._actor.parameters;

                    if (parameters[index, point.Item1] != point.Item2)
                    {
                        this._actor.parameters[index, point.Item1] = point.Item2;
                        this.RefreshChart(index);
                    }
                }
            }
            else
            {
                this.labelCoordX.Text = "X: ";
                this.labelCoordY.Text = "Y: ";
            }
        }