Steema Central

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// C# version
int pointindex = e.ValueIndex;
if (index>1)
{
  if (series.YValues[index]-series.YValues[index-1]>0)
  {
    series.ValueColor[index] = Color.Greed;
  }
  else
  {
    series.ValueColor[index] = Color.Red;
  }
}

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int index = e.ValueIndex;
// plot all positive values green, negative and zero red
if (series.YValues[index] > 0) series.Colors[index] = Color.Green;
else series.Colors[index] = Color.Red;

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Private Sub Points1_GetPointerStyle(ByVal series As Steema.TeeChart.Styles.CustomPoint, ByVal e As Steema.TeeChart.Styles.GetPointerStyleEventArgs) Handles Points1.GetPointerStyle
  If series.YValues(e.ValueIndex) > 0 Then
    series.Colors(e.ValueIndex) = Color.Green
  Else : series.Colors(e.ValueIndex) = Color.Red
  End If
End Sub

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			s.ColorEach = true;

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			s.ColorEachLine = true;

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private void Form1_Load(object sender, EventArgs e)
        {
            Steema.TeeChart.Styles.Line line = new Steema.TeeChart.Styles.Line(tChart1.Chart);
            //Steema.TeeChart.Styles.Line line = new Steema.TeeChart.Styles.Line();
            line.ColorEach = true;
            line.ColorEachLine = true;
            line.Brush.Color = System.Drawing.Color.Brown;
            line.HorizAxis = Steema.TeeChart.Styles.HorizontalAxis.Both;
            line.VertAxis = Steema.TeeChart.Styles.VerticalAxis.Both;
            line.LinePen.Color = System.Drawing.Color.Brown;
            line.OutLine.Color = System.Drawing.Color.Brown;
            line.Marks.Callout.Arrow = line.Marks.Arrow;
            line.Marks.Callout.ArrowHead = Steema.TeeChart.Styles.ArrowHeadStyles.None;
            line.Marks.Callout.ArrowHeadSize = 8;
            line.Marks.Callout.Brush.Color = System.Drawing.Color.Black;
            line.Marks.Callout.Distance = 0;
            line.Marks.Callout.Draw3D = false;
            line.Marks.Callout.Length = 10;
            line.Marks.Callout.Style = Steema.TeeChart.Styles.PointerStyles.Triangle;
            line.Marks.Font.Shadow.Visible = false;
            line.Pointer.Brush.Color = System.Drawing.Color.Brown;
            line.Pointer.HorizSize = 2;
            line.Pointer.Pen.Color = System.Drawing.Color.Brown;
            line.Pointer.Style = Steema.TeeChart.Styles.PointerStyles.Triangle;
            line.Pointer.VertSize = 2;
            line.Pointer.Visible = true;
            line.Title = "Line Pen";
            line.XValues.Order = Steema.TeeChart.Styles.ValueListOrder.Ascending;
            //this.series = line;

            line.DataSource = CreateDataSet();
            line.YValues.DataMember = "SALARY";
            line.XValues.DataMember = "ID";
            line.LabelMember = "LASTNAME";
            line.ColorMember = "COLOR";

            line.CheckDataSource(); 

        }

        private DataTable CreateDataSet()
        {
            DataTable Employee = new DataTable();

            DataColumn SALARY = new DataColumn("SALARY", Type.GetType("System.Int32"));
            DataColumn ID = new DataColumn("ID", Type.GetType("System.Int32"));
            DataColumn LASTNAME = new DataColumn("LASTNAME", Type.GetType("System.String"));
            DataColumn COLOR = new DataColumn("COLOR", Type.GetType("System.Object")); 

            Employee.Columns.Add(SALARY);
            Employee.Columns.Add(ID);
            Employee.Columns.Add(LASTNAME);
            Employee.Columns.Add(COLOR);


            DataRow dataRow0;
            dataRow0 = Employee.NewRow();
            dataRow0[SALARY] = 10;
            dataRow0[ID] = 0;
            dataRow0[LASTNAME] = "George";
            dataRow0[COLOR] = Color.Black;

            Employee.Rows.Add(dataRow0);

            DataRow dataRow;
            dataRow = Employee.NewRow();
            dataRow[SALARY] = 10000;
            dataRow[ID] = 1;
            dataRow[LASTNAME] = "Jones";
            dataRow[COLOR] = Color.Red;

            Employee.Rows.Add(dataRow);

            DataRow dataRow2;
            dataRow2 = Employee.NewRow();
            dataRow2[SALARY] = 96000;
            dataRow2[ID] = 2;
            dataRow2[LASTNAME] = "Sam";
            dataRow2[COLOR] = Color.Green;

            Employee.Rows.Add(dataRow2);

            DataRow dataRow3;
            dataRow3 = Employee.NewRow();
            dataRow3[SALARY] = 50200;
            dataRow3[ID] = 3;
            dataRow3[LASTNAME] = "Eva";
            dataRow3[COLOR] = Color.Blue;

            Employee.Rows.Add(dataRow3);

            DataRow dataRow4;
            dataRow4 = Employee.NewRow();
            dataRow4[SALARY] = 106943;
            dataRow4[ID] = 4;
            dataRow4[LASTNAME] = "Tom";
            dataRow4[COLOR] = Color.Yellow;

            Employee.Rows.Add(dataRow4);

            DataRow dataRow5;
            dataRow5 = Employee.NewRow();
            dataRow5[SALARY] = 26943;
            dataRow5[ID] = 5;
            dataRow5[LASTNAME] = "Gerrard";
            dataRow5[COLOR] = Color.Tomato;

            Employee.Rows.Add(dataRow5);

            return Employee;
        }