UserControl with Generics

Hi

I have my Color Picker Control which have ChildWinEditLayout Parent property. Now I want to use generics. I want to have my NewChildWinEditLayout Parent or OldChildWinEditLayout to be set as MyParent.

How can I make this code only have one constructor using generics ?

public partial class ColorPickerControl : UserControl
  {
   
    OldChildWinEditLayout myParent;
    NewChildWinEditLayout myParentControl;
    string tag;

    public ColorPickerControl(OldChildWinEditLayout myParent1, string tag1)
    {
      tag = tag1;
      myParent = myParent1;
      InitializeComponent();
    }

    public ColorPickerControl(NewChildWinEditLayout myParent1, string tag1)
    {
        tag = tag1;
        myParentControl = myParent1;
        InitializeComponent();
    }

}

Also my ColorPicker control has this line of code

myParent.SetForeColor("UpDown");

How can I enforce that classes that use my ColorPicker Color must have SetForeColor property.

Thanks