Steema Central

Code: Select all

    public Form1()
    {
      InitializeComponent();
      InitializeChart();
    }

    private void InitializeChart()
    {
      for (int i = 0; i < 8; i++)
      {
        tChart1.Series.Add(new Steema.TeeChart.Styles.Bar());
        tChart1[i].FillSampleValues();
      }

      Steema.TeeChart.Tools.DataTableTool dataTable1 = new Steema.TeeChart.Tools.DataTableTool(tChart1.Chart);

      tChart1.Legend.CheckBoxes = true;

      tChart1.ClickLegend += new MouseEventHandler(tChart1_ClickLegend);
    }

    void tChart1_ClickLegend(object sender, MouseEventArgs e)
    {
      int index = tChart1.Legend.Clicked(e.X, e.Y);

      tChart1[index].Active = true;
      if (tChart1[index].Color == Color.Transparent)
      {
        tChart1[index].Color = Steema.TeeChart.Themes.OperaTheme.OperaPalette[index];
      }
      else
      {
        tChart1[index].Color = Color.Transparent;
      }
    }

Code: Select all

int CheckBoxesLeftOffset, CheckBoxesTopOffset, CheckBoxesSize, CheckBoxesSeparation;

private void InitializeChart()
{
//...
    CheckBoxesLeftOffset = 6;
    CheckBoxesTopOffset = 5;
    CheckBoxesSize = 10;
    CheckBoxesSeparation = 17;
//...
    tChart1.AfterDraw += new Steema.TeeChart.PaintChartEventHandler(tChart1_AfterDraw);
}

void tChart1_AfterDraw(object sender, Steema.TeeChart.Drawing.Graphics3D g)
{
    tChart1.Graphics3D.Pen.Visible = false;
            
    for (int i = 0; i < tChart1.Series.Count; i++)
    {
        if (tChart1[i].Color == Color.Transparent)
        {
            tChart1.Graphics3D.Rectangle(tChart1.Legend.Left + CheckBoxesLeftOffset, tChart1.Legend.Top + CheckBoxesTopOffset + (CheckBoxesSeparation*i), tChart1.Legend.Left + CheckBoxesLeftOffset + CheckBoxesSize, tChart1.Legend.Top + CheckBoxesTopOffset + CheckBoxesSize + (CheckBoxesSeparation*i));
        }
    }
}