find the region part of live using c#

问题

I have done like this for creating click event handler for one part of the chart using mschart control, the chart is like this

and the code like this

private void targetChartmouse_Click(object sender, MouseEventArgs e)
{ 
  try
  {
    var pos = e.Location;
    var results = kpiChartControl.HitTest(pos.X, pos.Y, false, ChartElementType.DataPoint);
    foreach (var result in results)
    {
      if (result.ChartElementType == ChartElementType.DataPoint)
      { 
        //do something....
      }
    }        
  }
}

It's working fine when we click on the chart (in every section of chart), but I want to do something only when we click on the live(green), not on every part. Is it possible to find the region of live(green)

Is it possible using c#?

I am doing winforms application

Modified Code

     public void targetChartmouse_Click(object sender, MouseEventArgs e)
   {
  Series statusseries = new Series();
  Series liveseries = null;
  Title title;
  string area;

  //Series totalserries;
  try
  {
    var pos = e.Location;
    var results = kpiChartControl.HitTest(pos.X, pos.Y, false, ChartElementType.DataPoint);
    foreach (var result in results)
    {
      if (result.ChartElementType == ChartElementType.DataPoint)
      {

          DataTable accepts = null;
          accepts = KPIData.livemembersmembershiptype(mf);

          DataTable membershiptypes = null;
          membershiptypes = KPIData.MembershipTotals(dtStartDate.Value, dtEndDate.Value, mf);

          area = "subchart";
          kpiChartControl.ChartAreas.Add(area);
          statusseries = kpiChartControl.Series.Add(area);
          statusseries.ChartArea = area;

          title = kpiChartControl.Titles.Add("Live Status  members  By MemberShip Type");
          title.DockedToChartArea = area;
          title.Font = new Font(FontFamily.GenericSansSerif, 10, FontStyle.Bold);
          title.Alignment = ContentAlignment.TopLeft;
          kpiChartControl.Titles.Add("").DockedToChartArea = area;
          kpiChartControl.Titles.Add("Live status membership types").DockedToChartArea = area;


          area = "";
          kpiChartControl.Titles.Add("").DockedToChartArea = area;




          foreach (Title titles in kpiChartControl.Titles)
          {
            titles.IsDockedInsideChartArea = false;
          }


          foreach (ChartArea chartArea in kpiChartControl.ChartAreas)
          {
            chartArea.Area3DStyle.Enable3D = true;
            chartArea.AxisX.LabelStyle.IsEndLabelVisible = true;
            //chartArea.AxisX.LabelStyle.IsEndLabelVisible = !overview;
          }

          if (area == "subchart")
          {
            foreach (Series chartSeries in kpiChartControl.Series)
            {
              chartSeries.ChartType = SeriesChartType.StackedColumn;
              chartSeries["ColumnDrawingStyle"] = "SoftEdge";
              chartSeries["LabelStyle"] = "Top";
              chartSeries.IsValueShownAsLabel = true;
              chartSeries.BackGradientStyle = GradientStyle.DiagonalLeft;
            }
          }
          else if (area == "subchart")
          {
            foreach (Series chartSeries in kpiChartControl.Series)
            {
              chartSeries.ChartType = SeriesChartType.Pie;

              //chartSeries["PieLabelStyle"] = "Outside";
              chartSeries["PieLabelStyle"] = "Inside";
              chartSeries["DoughnutRadius"] = "30";
              chartSeries["PieDrawingStyle"] = "SoftEdge";

              chartSeries.BackGradientStyle = GradientStyle.DiagonalLeft;

            }

          }

          foreach (Legend legend in kpiChartControl.Legends)
          {
            legend.Enabled = false;
          }

          if (membershiptypes == null)
          {
            statusseries.Points.Clear();
            statusseries.Points.AddXY("no status", 0);

          }
          if (accepts == null)
          {
            liveseries.Points.Clear();
            liveseries.Points.AddXY("no live", 0);

          }
          kpiChartControl.Series["subchart"].Points.DataBindXY(accepts.Rows, "mshipname", accepts.Rows, "count");
          kpiChartControl.Series[0].Points.DataBindXY(membershiptypes.Rows, "Status", membershiptypes.Rows, "Value");

        }

        foreach (Series chartSeries in kpiChartControl.Series)
        {
          foreach (DataPoint point in chartSeries.Points)
          {

            switch (point.AxisLabel)
            {
              case "Silver membership": point.Color = Color.Green; break;
              case "Gold Membership": point.Color = Color.Blue; break;
              //case "Refused": point.Color = Color.Red; break;
              case "Weekend Peak": point.Color = Color.Cyan; break;
              case "prspect": point.Color = Color.Indigo; break;

            }
            point.Label = string.Format("{0:0}", point.YValues[0]);
          }

        }

        foreach (Series chartSeries in kpiChartControl.Series)
        {
          foreach (DataPoint point in chartSeries.Points)
          {
            switch (point.AxisLabel)
            {
              case "New": point.Color = Color.Cyan; break;
              case "Live": point.Color = Color.Green; break;
              case "Defaulter": point.Color = Color.Red; break;
              case "Cancelled": point.Color = Color.Orange; break;
              case "Completed": point.Color = Color.Blue; break;
              case "Frozen": point.Color = Color.Violet; break;
            }

            point.Label = string.Format("{0:0} - {1}", point.YValues[0], point.AxisLabel);
          }
        }

    }
  }
  catch
  {
  }

}

回答1:

This might work:

try
{
  var pos = e.Location;
  var results = kpiChartControl.HitTest(pos.X, pos.Y, false, ChartElementType.DataPoint);
  foreach (var result in results)
  {
    if (result.ChartElementType == ChartElementType.DataPoint)
    {
      if (result.Series.Points[result.PointIndex].AxisLabel == "Live")
      {
        Console.WriteLine("success?");
      }
    }
  }  
}

回答2:

Maybe you can acquire the DatePoint using [result.PointIndex(http://msdn.microsoft.com/en-us/library/system.windows.forms.datavisualization.charting.hittestresult.pointindex.aspx) and result.Series.

if(result.Series.Points.Item[result.PointIndex].Label == "Live") {
    // ...
}

来源：https://stackoverflow.com/questions/6827024/find-the-region-part-of-live-using-c-sharp