Question

Is it possible to to make a GroupBox that looks like the image below?

If it is not possible with the native controls are there any free, custom controls that might support this?

Answer 1

There’s no control like the image which you made, I have a non intelligent solution, but might match your requirement,

Create a UserControl and put inside it two GroupBox controls, then you’ll have a line between them, you can hide it by add a panel above it without None for BorderStyle.

Then you’ll have this user control:

I know it’s not as intelligent as you want, but might it’s easier than drawing one from scratch and loose the theme.

You can also create a title property to reflect the vertical groupbox as a title of the user control

public string Title
{
    get { return groupBox1.Text; }
    set { groupBox1.Text = value; }
}

Good luck!