Component Properties

Hello,

Can any one please tell me how to add properties in a component, where you can set more than one value.

For example, with the following code, MyPoints shows in the properties window and you can expand it to set the X and Y co-ordinates

Code:

---

public partial class UserControl1 : UserControl
{
    public Point MyPoints { get; set; }
}

---

But I cannot figure out how to do it with my own structures or classes
EG

Code:

---

public partial class UserControl1 : UserControl
{
    public MyColumns Columns { get; set; }
}

public struct MyColumns
{
    public int Width { get; set; }
    public int Height  { get; set; }
}

---

With the above it just shows a greyed out "ControlGrid.MyColumns" in the properties windows

Any ideas as to if this is possible?
Surely it must be if you do it for things like Point