Question

I am using C# 4.0, how can I avoid the problem of writing lots of similiar methods because they are each parameter-unique (how can the new parameter features avoid overload hell?).

Thanks

Answer 1

Instead of this:

void Method(string param1, string param2) { }
void Method(string param1, string param2, string param3) { }
void Method(string param1, string param2, string param3, string param4) { }
void Method(string param1, string param2, string param3, int int4) { }
//etc...

You can just have one method with all the params you want, and call it using the named params like this:

void Method(string param1, string param2 = "default2", 
            string param3 = "default3", int int4 = 12, int lastParam = 12) { }

And call it like this:

Method(param1: "myString", int4: 23);
//or...
Method(param1: "myString", param4: "string2", int4: 23);

Just include what you want to set, the rest will be the defaults you specified in the method signature.