//---------------------------------------------------------------------------------------------------------------------------------------
        protected override void OnMouseMove(MouseEventArgs e)
        {
            string decimalSeparator = Culture.NumberFormat.NumberDecimalSeparator;

            char[] decimalSeparatorArray = decimalSeparator.ToCharArray();

            Point mousePos = e.GetPosition(this);
            //Vector uv = new Vector(mousePos.X/ RenderSize.Width, mousePos.Y / RenderSize.Height);
            int     cndl_i      = VisibleCandlesRange.Start_i + (int)(mousePos.X / (CandleWidthAndGap.Width + CandleWidthAndGap.Gap));
            ICandle cndl        = CandlesSource[cndl_i];
            string  strT        = cndl.t.ToString((CandlesSource.TimeFrame < 0) ? "G" : "g", Culture);
            string  tooltipText = $"{strT}\nV= {MyNumberFormatting.VolumeToString(cndl.V, Culture, decimalSeparator, decimalSeparatorArray)}";

            ((ToolTip)ToolTip).Content = tooltipText;
        }
        //---------------------------------------------------------------------------------------------------------------------------------------
        protected override void OnMouseMove(MouseEventArgs e)
        {
            string decimalSeparator = Culture.NumberFormat.NumberDecimalSeparator;

            char[] decimalSeparatorArray = decimalSeparator.ToCharArray();
            string priceNumberFormat     = $"N{MaxNumberOfFractionalDigitsInPrice}";

            Point mousePos = e.GetPosition(this);
            //Vector uv = new Vector(mousePos.X/ RenderSize.Width, mousePos.Y / RenderSize.Height);
            int     cndl_i      = VisibleCandlesRange.Start_i + (int)(mousePos.X / (CandleWidthAndGap.Width + CandleWidthAndGap.Gap));
            ICandle cndl        = CandlesSource[cndl_i];
            string  strO        = MyNumberFormatting.PriceToString(cndl.O, priceNumberFormat, Culture, decimalSeparator, decimalSeparatorArray);
            string  strH        = MyNumberFormatting.PriceToString(cndl.H, priceNumberFormat, Culture, decimalSeparator, decimalSeparatorArray);
            string  strL        = MyNumberFormatting.PriceToString(cndl.L, priceNumberFormat, Culture, decimalSeparator, decimalSeparatorArray);
            string  strC        = MyNumberFormatting.PriceToString(cndl.C, priceNumberFormat, Culture, decimalSeparator, decimalSeparatorArray);
            string  strV        = MyNumberFormatting.VolumeToString(cndl.V, Culture, decimalSeparator, decimalSeparatorArray);
            string  strT        = cndl.t.ToString((CandlesSource.TimeFrame < 0) ? "G" : "g", Culture);
            string  tooltipText = $"{strT}\nO= {strO}\nH= {strH}\nL= {strL}\nC= {strC}\nV= {strV}";

            ((ToolTip)ToolTip).Content = tooltipText;
        }