[C # Programming Guide] Overriding the ToString method

Each class or struct in C # implicitly inherits the Object class. Therefore, each object in C # Gets the ToString method, which returns the string representation of the object . For example, all variables of type int have a ToString method, which allows these variables to return their contents as strings:

int x = 42;

string Strx = x.tostring ();

Console.WriteLine (Strx);

Output:

42

When you create a custom class or struct, you should override the ToString method to provide the type information to the client code.

Overriding the ToString method in a class or struct

1. Declare the ToString method with the following modifier and return type:

 Public Override string ToString () {}

2. Implement the method so that it returns a string.

The following example returns the name of the class and data that is specific to an instance of the class.

class Person

{

 Public string Name {get; set;}

 Public int Age {get; set;}

 Public Override string ToString ()

{

return "Person:" "" + age;

}

}

Test the ToString method, as shown in the following code example:

New "John", age = 12};

Console.WriteLine (person);

Output:

Person:john 12

[C # Programming Guide] Overriding the ToString method