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Understanding Properties in C#In C#, properties are nothing but natural extension of data fields. They are usually known as ‘smart fields’ in C# community. We know that data encapsulation and hiding are the two fundamental characteristics of any object oriented programming language. In C#, data encapsulation is possible through either classes or structures. By using various access modifiers like private, public, protected, internal etc it is possible to control the accessibility of the class members.
Usually inside a class, we declare a data field as private and will provide a set of public SET and GET methods to access the data fields. This is a good programming practice, since the data fields are not directly accessible out side the class. We must use the set/get methods to access the data fields.
An example, which uses a set of set/get methods, is shown below.
//SET/GET methods
//Author: rajeshvs@msn.com
using System;
class MyClass
{
private int x;
public void SetX(int i)
{
x = i;
}
public int GetX()
{
return x;
}
}
class MyClient
{
public static void Main()
{
MyClass mc = new MyClass();
mc.SetX(10);
int xVal = mc.GetX();
Console.WriteLine(xVal);//Displays 10
}
}
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But C# provides a built in mechanism called properties to do the above. In C#, properties are defined using the property declaration syntax. The general form of declaring a property is as follows.
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