Overriding the Defaults in a struct (c#)

Is it possible to set or override the default state for a structure?

As an example I have an

enum something{a,b,c,d,e};

and a structure that links 2 values for that enum

struct SomethingData
{
    something type;
    int Value;
    double Multipler;

    SomethingData(something enumVal, int intVal, double DblVal) {...}
}

But can I specify that the default state is

SomethingData(something.c,0,1);