What does this mean ? public Name {get; set;} [duplicate]

I see this quiet often in C# documentation. But what does it do?

public class Car
{
   public Name { get; set; }
}

Solution 1:

It is shorthand for:

private string _name;

public string Name
{
    get { return _name; }
    set { _name = value; }
}

The compiler generates the member variable. This is called an automatic property.

Solution 2:

In simple terms they are referred as property accessors. Their implementation can be explained as below

1.get{ return name} The code block in the get accessor is executed when the property is Read.

2.set{name = value} The code block in the set accessor is executed when the property is Assigned a new value.

Eg.(Assuming you are using C#)

 class Person
 {
     private string name;  // the name field
     public string Name    // the Name property
     {
         get
         {
             return name;
         }
         set
         {
             name = value;
         }
     }
 }

Now when you refer to this property as below
Person p = new Person();// Instantiating the class or creating object 'p' of class 'Person'
```
System.Console.Write(p.Name);  //The get accessor is invoked here
```

The get accessor is invoked to Read the value of property i.e the compiler tries to read the value of string 'name'.

2.When you Assign a value(using an argument) to the 'Name' property as below

Person p = new Person();
p.Name = "Stack"  // the set accessor is invoked here
Console.Writeline(p.Name) //invokes the get accessor
Console.ReadKey(); //Holds the output until a key is pressed

The set accessor Assigns the value 'Stack" to the 'Name property i.e 'Stack' is stored in the string 'name'.

Ouput:

Stack

Solution 3:

It's an automatic read-write property. It's a C# 3.0 addition. Something like:

public class Car {
    private string name;
    public string Name { get { return name; } set { name = value; } }
}

except that you can't directly access the backing field.

Solution 4:

It's called an Auto-Implemented Property and is new to C# 3.0. It's a cleaner syntax when your access to the property doesn't need any special behavior or validation. It's similar in function to:

public class Car
{
  private string _name;
  public string Name
  {
    get { return _name; }
    set {_name = value; }
  }
}

So it saves a fair amount of code, but leaves you the option later to modify the accessor logic if behavior or rules need to change.

Solution 5:

It is the equivilent of doing:

private string _Text;

public string Text 
{
    get { return _Text; }
    set { _Text = value; }
}

Except you don't have access to the private variable while inside the class.