Steema Central

Posted: **Tue Nov 10, 2009 6:36 am**

Hello,

I have developed point selection in TChart V3(Dll version is 3.5.3425.20244), it was working fine.
Now i have installed TeeChartNET2009VSNET2005 . Dll version is 4.0.2009.28593
I am facing selection problem with Point series.

I have added Point series and MarksTip tool in TChart control.
Then have added 3 or 4 same data inputs in the point series. If i move mouse on top of those points, it is showing above/top lable. But if i try to get the lable/valueIndex of selected points after clicking on series, its giving the below/bottom point's lable instead of above/top point's lable.

example,

points1.Add(5, 10, "A");
points1.Add(5, 10, "B");
points1.Add(5, 10, "C");

private void tChart1_ClickSeries(object sender, Steema.TeeChart.Styles.Series s, int valueIndex, MouseEventArgs e)
{
//tChart1.Header.Text = points1[valueIndex].Label;
if (points1[valueIndex].Color == selectedCellColor)
points1[valueIndex].Color = Color.Black;
else
points1[valueIndex].Color = selectedCellColor;
}

The above code working fine in TChart dll 3.5.3425.20244. But it is not working in TChart dll 4.0.2009.28593.
How to solve this problem?

With Regards,
Vivek

Posted: **Thu Nov 12, 2009 10:08 am**

Hello vivek,

Thanks for your information, I could reproduce your problem here. I have added it in bug report list with number [TF02014559] and we will try to fix for next versions of TeeChart .Net

Thanks,

Posted: **Thu Nov 12, 2009 10:19 am**

Hello sandra,

Do you have any temporary solution to solve this problem?

With regards,
Vivek.J

Posted: **Thu Nov 12, 2009 11:10 am**

Hi Vivek,

I'm afraid that the only thing I can think right now would be looping into your series searching for all the points in the same position. Something like following:

Code: Select all

        private Steema.TeeChart.Styles.Points points1;
        private Steema.TeeChart.Tools.MarksTip marktip;        
        
        private void InitializeChart()
        {
            tChart1.Aspect.View3D = false;

            points1 = new Steema.TeeChart.Styles.Points(tChart1.Chart);
            marktip = new Steema.TeeChart.Tools.MarksTip(tChart1.Chart);
            points1.Add(5, 10, "A");
            points1.Add(5, 10, "B");
            points1.Add(5, 10, "C");
            marktip.Series = points1;
            tChart1.ClickSeries += new Steema.TeeChart.TChart.SeriesEventHandler(tChart1_ClickSeries);
        }

        void tChart1_ClickSeries(object sender, Steema.TeeChart.Styles.Series s, int valueIndex, MouseEventArgs e)
        {
            int first, last;
            first = last = -1;
            for (int i = 0; i < tChart1[0].Count; i++)
            {
                if ((tChart1[0].XValues[i] == tChart1[0].XValues[valueIndex]) && (tChart1[0].YValues[i] == tChart1[0].YValues[valueIndex]))
                {
                    if (first == -1) first = i;
                    last = i;
                }
            }
            if ((first != -1) && (last != -1))
                tChart1.Header.Text = "first: " + tChart1[0].Labels[first] + "  last: " + tChart1[0].Labels[last];
        }

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