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c#winformsuser-interfacecontrolsgroupbox

How do you change the color of the border on a group box?

In C#.NET I am trying to programmatically change the color of the border in a group box.

Update: This question was asked when I was working on a winforms system before we switched to .NET.

Solution

  • Building on the previous answer, a better solution that includes the label for the group box:

    groupBox1.Paint += PaintBorderlessGroupBox;

private void PaintBorderlessGroupBox(object sender, PaintEventArgs p)
{
  GroupBox box = (GroupBox)sender;
  p.Graphics.Clear(SystemColors.Control);
  p.Graphics.DrawString(box.Text, box.Font, Brushes.Black, 0, 0);
}

    You might want to adjust the x/y for the text, but for my use this is just right.