DRawLine Handles can I detect whether I've got hold of one.

[Snarkle]

Greetings,

Is there a way to determine if you currently have selected a handle on the drawline and in particular WHICH handle you have under the mouse ...

I suppose I could grab the mouse coords -- convert them to price and index values and then see whether they fall close enough to say yep .. thats the StartPos end of the Line ...

Is there a more bullet proof way of knowing what end of the tiger one currently has hold of





P.S. hey how come I'm still a "newbie" ... I would think by now I'm an intermediate at asking formum questions .... maybe I need to upload more pictures

[Sandra]

Hello Phil,

I suggest you use MouseClickEvent or MouseDownEvent or MouseMoveEvent and DrawLineItems as do in next example to calculated StartPos and EndPos of DrawLine Tool.

Code: Select all

        public Form1()
        {
            InitializeComponent();
            InitializeChart();
        }
        private void InitializeChart()
        {
            Steema.TeeChart.Styles.Candle candle1 = new Steema.TeeChart.Styles.Candle(tChart1.Chart);
            candle1.FillSampleValues();
            Steema.TeeChart.Tools.DrawLine drawline = new Steema.TeeChart.Tools.DrawLine(tChart1.Chart);

            drawline.Pen.Color = Color.Red;
            drawline.Pen.Width = 2;
            drawline.EnableDraw = true;
            tChart1.Axes.Bottom.Labels.Angle = 90;
            tChart1.MouseClick += new MouseEventHandler(tChart1_MouseClick);

        }

        void tChart1_MouseClick(object sender, MouseEventArgs e)
        {
            Steema.TeeChart.Tools.DrawLineItem drawlineItems = (tChart1.Tools[0] as Steema.TeeChart.Tools.DrawLine).Clicked(e.X, e.Y);
            if (drawlineItems != null)
            {
                if (drawlineItems.StartHandle.Contains(e.X, e.Y))
                {                    
                    this.Text = "Start Handle X value: " + (DateTime.FromOADate(drawlineItems.StartPos.X)).ToShortDateString() + "Start Handle Y value: " + ((int)drawlineItems.StartPos.Y).ToString();

                }
                else if (drawlineItems.EndHandle.Contains(e.X, e.Y))
                {
                    this.Text = "Start Handle X value: " + (DateTime.FromOADate(drawlineItems.EndPos.X)).ToShortDateString() + "Start Handle Y value: " + ((int)drawlineItems.EndPos.Y).ToString();
                }
            }
        }

Could you tell us if previous code works as you want?

I hope will helps.

Thanks,

[Narcís]

Hi Phil,

P.S. hey how come I'm still a "newbie" ... I would think by now I'm an intermediate at asking formum questions .... maybe I need to upload more pictures

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