This print for content only-size & color not accurate 7" X 9-1/4" / casebound / malloy

// Must supply type parameter if

// the method does not take params.

DisplayBaseClass();

DisplayBaseClass();

// Compiler error! No params? Must supply placeholder!

// DisplayBaseClass();

Console.ReadLine();

}

Figure 10-2 shows the current output of this application.

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Figure 10-2.

Generic methods in action

Currently, the generic Swap and DisplayBaseClass methods have been defined within

the application object (i.e., the type defining the Main() method). Of course, like any method, if

you would rather define these members in a separate class type (MyGenericMethods), you are free

to do so:

public static class MyGenericMethods

{

public static void Swap(ref T a, ref T b)

{

Console.WriteLine("You sent the Swap() method a {0}",

typeof(T));

T temp;

temp = a;

a = b;

b = temp;

}

public static void DisplayBaseClass()

{

Console.WriteLine("Base class of {0} is: {1}.",

typeof(T), typeof(T).BaseType);

}

}

Because the static Swap and DisplayBaseClass methods have been scoped within a

new static class type, you will need to specify the type’s name when invoking either member, for

example:

MyGenericMethods.Swap(ref a, ref b);

Of course, generic methods do not need to be static. If Swap and DisplayBaseClass

were instance level (and defined in a nonstatic class), you would simply make an instance of

MyGenericMethods and invoke them off the object variable:

MyGenericMethods c = new MyGenericMethods();

c.Swap(ref a, ref b); 

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