There are two forms of conversion operators, implicit and explicit : Conversion Operator Overload « Operator Overload « C# / CSharp Tutorial

1. C# / CSharp Tutorial
2. Operator Overload
3. Conversion Operator Overload

The general form for each is shown here:

public static operator implicit target-type(source-type v) { 
    return value; 
}

public static operator explicit target-type(source-type v) { 
    return value; 
}