C# ToString Method
Description
The ToString method returns the default textual representation of a type instance. This method is overridden by all built-in types.
Here is an example of using the int type's ToString method:
int x = 1;
string s = x.ToString(); // s is "1"
Example
Example for a simple ToString method
using System;/*ww w .java 2s . c o m*/
class Rectangle{
public int Width;
public int Height;
public string ToString(){
return "Rectangle: "+ Width+" by "+ Height;
}
}
class Program
{
static void Main(string[] args)
{
Rectangle r = new Rectangle();
r.Width = 4;
r.Height = 5;
Console.WriteLine(r);
}
}
The output:
Example 2
The following code overrides the ToString method to print out first name and last name for employee object.
using System;/*from w w w . j av a 2 s . c om*/
public class Employee
{
public string firstName;
public string lastName;
public Employee(string firstName, string lastName)
{
this.firstName = firstName;
this.lastName = lastName;
}
public override string ToString()
{
return firstName + " " + lastName;
}
}
class MainClass
{
public static void Main()
{
Employee myEmployee = new Employee("A", "M");
Employee myOtherEmployee = new Employee("B", "N");
Console.WriteLine("myEmployee.ToString() = " + myEmployee.ToString());
Console.WriteLine("myOtherEmployee.ToString() = " + myOtherEmployee.ToString());
}
}
The code above generates the following result.
