Unlock DataGridView properties in Inherited Form

Form inheritance improve our coding time. But I'm facing a problem while inherit a form that contain DataGridView control. I could not modify the DataGridView properties. Eventhough change the modifier property to protected or public. The DataGridView control still locked in designer.

Here a brief step to work with:
1. I add a new class file for example FerDataGrdView.cs in my library objects (mylib.dll).
2. Type this code:
using System.Windows.Forms;
using System.ComponentModel;
namespace Ferryptk
{
[Designer(typeof( System.Windows.Forms.Design.ControlDesigner))]
public class FerDataGrdView : DataGridView { }
}

3. Build library (mylib.dll).
4. Add reference to mylib.dll
5. Drag the control (FerDataGrdView) in ancestor form.
6. Do form inheritance.
7. Now, I could modify the properties of DataGridView control.

O.. happy day..