C# Get Set Modifier

The get set accessor or modifier mostly used for storing and retrieving value from the private field. The get accessor must return a value of property type where set accessor returns void. The set accessor uses an implicit parameter called value. In simple word, the get method used for retrieving value from private field whereas set method used for storing value in private variables.


Properties are named members of classes, structures, and interfaces. Member variables or methods in a class or structures are called Fields. Properties are an extension of fields and are accessed using the same syntax. They use accessors through which the values of the private fields can be read, written or manipulated.
Properties do not name the storage locations. Instead, they have accessors that read, write, or compute their values.
Example 1:


using System;

namespace Get_Set
{
  class access
   {
     // String Variable declared as private
     private static string name;
     public void print()
      {
        Console.WriteLine("\nMy name is " + name);
      }

     public string Name //Creating Name property
      {
        get //get method for returning value
         {
           return name;
         }
        set // set method for storing value in name field.
         {
           name = value;
         }
      }
   }

  class Program
   {
     static void Main(string[] args)
      {
        access ac = new access();
        Console.Write("Enter your name:\t");
        // Accepting value via Name property
        ac.Name = Console.ReadLine();
        ac.print();
        Console.ReadLine();
      }
   }
}



Output:

Example 2:

For example, let us have a class named Student, with private fields for age, name and code. We cannot directly access these fields from outside the class scope, but we can have properties for accessing these private fields.

Accessors

The accessor of a property contains the executable statements that helps in getting (reading or computing) or setting (writing) the property. The accessor declarations can contain a get accessor, a set accessor, or both. For example:

// Declare a Code property of type string:
public string Code
{
   get
   {
      return code;
   }
   set
   {
      code = value;
   }
}

// Declare a Name property of type string:
public string Name
{
   get
   {
     return name;
   }
   set
   {
     name = value;
   }
}

// Declare a Age property of type int:
public int Age
{ 
   get
   {
      return age;
   }
   set
   {
      age = value;
   }
}

Example:

The following example demonstrates use of properties:

using System;
namespace tutorialspoint
{
   class Student
   {

      private string code = "N.A";
      private string name = "not known";
      private int age = 0;

      // Declare a Code property of type string:
      public string Code
      {
         get
         {
            return code;
         }
         set
         {
            code = value;
         }
      }
   
      // Declare a Name property of type string:
      public string Name
      {
         get
         {
            return name;
         }
         set
         {
            name = value;
         }
      }

      // Declare a Age property of type int:
      public int Age
      {
         get
         {
            return age;
         }
         set
         {
            age = value;
         }
      }
      public override string ToString()
      {
         return "Code = " + Code +", Name = " + Name + ", Age = " + Age;
      }
    }
    class ExampleDemo
    {
      public static void Main()
      {
         // Create a new Student object:
         Student s = new Student();
            
         // Setting code, name and the age of the student
         s.Code = "001";
         s.Name = "Zara";
         s.Age = 9;
         Console.WriteLine("Student Info: {0}", s);
         //let us increase age
         s.Age += 1;
         Console.WriteLine("Student Info: {0}", s);
         Console.ReadKey();
       }
   }
}

When the above code is compiled and executed, it produces the following result:

Student Info: Code = 001, Name = Zara, Age = 9
Student Info: Code = 001, Name = Zara, Age = 10