C# - Convert UserControl To Custom Control?

I have class that Inherit from UserControl Class.

public class Module : UserControl
{
// Custom Property And Method
}

How can i load a UserControl (.ascx) and convert to my Module Class?

UPDATE :

the error is : Unable to cast object of type 'ASP.UC_acsx' to type'BICT.Module'

my class is like this :

namespace BICT
{
public class Module : UserControl
{
public Module()
{
// Some Initial
}
// and some extra property exp.
public int Index{ get; set;}
}
}

is somthing wron with my code?