private void tChart1_AfterDraw(object sender, Steema.TeeChart.Drawing.Graphics3D g)
{
if (idx1 != -1)
{
int adjustY = 0;
if (((lineSeries1.CalcYPos(idx1) - 5) - tChart1.Axes.Left.CalcYPosValue(tChart1.Axes.Left.Maximum)) < (g.FontHeight + 2))
{
adjustY = g.FontHeight;
}
else if ((tChart1.Axes.Bottom.Position - lineSeries1.CalcYPos(idx1)) < (g.FontHeight + 2))
{
adjustY = -(g.FontHeight + 2);
}
g.Sphere(lineSeries1.CalcXPos(idx1), lineSeries1.CalcYPos(idx1), 0, 4);
String msg = "Value: " + Steema.TeeChart.Utils.FormatFloat("#.00", lineSeries1.YValues[idx1]);
g.Brush.Transparency = 50;
g.Pen.Color = Color.DarkGray;
g.Rectangle(lineSeries1.CalcXPos(idx1) + 5 - 1, lineSeries1.CalcYPos(idx1) + adjustY - 5,
lineSeries1.CalcXPos(idx1) + (int)g.TextWidth(msg) + 3 + 5 + 1,
lineSeries1.CalcYPos(idx1) + adjustY + g.FontHeight + 2 - 5);
g.TextOut(lineSeries1.CalcXPos(idx1) + 5, lineSeries1.CalcYPos(idx1) - 5 + adjustY, msg);
}
}