Define Auto Implemented Properties

This is introduced in C#.NET 3.0.

•  To simplify the syntax of property declaration that contains no extra logic in ―set accessor and ―get accessor, this concept is introduced.
•  According to this, no code for ―set and ―get accessors needed to write.
•  No extra variable is needed to be declared.
•  Syn: accessmodifier datatype propertyname { get; set; }
•  Ex: public string Name { get; set; }

Define Write Property in C#.net

Simply implement ―set accessor only, don‘t implement ―get accessor.
 Syn:

private datatype variablename;
accessmodifier datatype propertyname
{
set
{
variablename = value;
}
}

Define Read only Property in C#.net

Simply implement 
         get accessor only, don‘t implement ―set accessor.
 Syn:

private datatype variablename;
accessmodifier datatype propertyname
{
get
{
return (variablename);
}
}

Define Set and Get Accessor in Property

The “Set” Accessor:
1. This gets called automatically, whenever a value is assigned to the property in the client code. Ex: obj.property = value;
2. The value that is assigned in the client code is available as ―implicit parameter,named value in this set accessor.
3. This accessor can‘t return any value.
The “Get” Accessor:
1. This gets called automatically, whenever the property value is requested in the client code. Ex: obj.property
2. No implicit parameters are available.
3. This accessor should return the value of the property.

Define Types of Generics

 Generic Classes: 
            The generic represents a data type, during the object‘s life time of the class.
 Generic Methods: 
           The generic represents a data type, during the method execution.

Define Generics

• Generics are similar to ―templates in C++.
•  A generic is an identifier, which automatically identifies the data type of a variable.
•  This is designed to represent a particular data type, during an object life time or a method execution.

 Two types of generics. 

•  Representing a data type during an object life time.
•  Representing a data type during the method execution time.

Define rules of Destructor

• Its name must be defined as class name.
•  It' name must be started with "~" character.
•  Access modifier can‘t be specified for this.
•  No arguments.
•  No return value.
•  Destructor overloading is not possible. That means multiple destructors can't be defined inside of a class.

Define Types of Constructors

Implicit constructor:

•  A constructor, offered by the compiler implicitly is called as "Implicit constructor".
•  But the compiler automatically offers an implicit constructor, for "constructor-less class" only.

Explicit constructor:

•  A constructor, defined by the programmer.
•  It always overrides the implicit constructor.

Define rules of Constructors

• Its name must be same as "classname".
•  It must be defined as "public method".
•  It can be defined with/without arguments.
•  It can't return any value. So, no return type specification is required.
• "Constructor overloading" is possible. Writing multiple constructors in the same class is called as "Constructor overloading".

Define “this” Keyword

This is similar to ―this pointer in C++.
 It represents current working object.
 It is used to access the members of current working object.

• this.field
• this.property
• this.method()

Current object: The object, with which object, the method is called.
“this” keyword can‘t be used in the static methods, because static methods doesn‘t have current object.