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change color on a part of a line graph
Posted: Mon Apr 03, 2006 2:28 pm
by 9637396
Hi I have a line graph with about 100 points.
It is a red line
Now I want the line connecting point number 45, 46 and 47 to be green.
Is that possible? How?
Thanks in advance
Lars Iversen
Posted: Mon Apr 03, 2006 2:53 pm
by narcis
Hi Lars,
Yes, you have 2 options:
1) Setting the color when populating the series:
Code: Select all
private void Form1_Load(object sender, EventArgs e)
{
Random rd = new Random();
for (int i = 0; i < 100; i++)
{
if ((i>45) && (i<=47))
line1.Add(rd.Next(),Color.Green);
else
line1.Add(rd.Next(),Color.Red);
}
}
2) Setting the color for the points you want doing something like:
Code: Select all
private void button1_Click(object sender, EventArgs e)
{
line1.Colors[46] = Color.Green;
line1.Colors[47] = Color.Green;
line1.Repaint();
}