How to pass Editor1 as Parameter:

In my aspx.cs i am giving a call to a function which is in .cs file for the same project, as follows:

protected void DropDownList2_SelectedIndexChanged(object sender, EventArgs e)
{
    DropDown abs = new DropDown();
    abs.dd(this.DropDownList2, this.DropDownList3);
}

.CS file code

 public void dd(DropDownList DropDownList2, DropDownList DropDownList3)
    {
         //My code which contains DropDownList2 DropDownList3 and Editor1
   }

The error that i am getting is:

Error   1   The name 'Editor1' does not exist in the current context    

The way i have passed DropDownList2 and DropDownList3 i am not able to pass Editor1(It is an ajax control). How do i pass it?