What are the 4 types of classes in ADO.NET?

Answers were Sorted based on User's Feedback



What are the 4 types of classes in ADO.NET?..

Answer / shashikant kothavale

DataAdapter,Dataset,DataReader and Command Objects

Is This Answer Correct ?    32 Yes 10 No

What are the 4 types of classes in ADO.NET?..

Answer / shwetha

The 4 Types of Classes in Ado.Net are

* Sqlconnection
* SQlCommand
* SqlDataReader
* SqlDataAdaptor

Is This Answer Correct ?    27 Yes 10 No

What are the 4 types of classes in ADO.NET?..

Answer / tahir

The 4 Types of Classes in Ado.Net are

* Sqlconnection
* SQlCommand
* SqlDataReader
* SqlDataAdaptor

Is This Answer Correct ?    11 Yes 2 No

What are the 4 types of classes in ADO.NET?..

Answer / gaurav agrawal

The class is one of the two basic encapsulation constructs
in C# (the other being the struct). Every executable
statement must be placed inside a class or struct. Classes
define reference types that are the basic building blocks of
C# programs, and they are the architectural blueprint for
the "objects" in OOP.
- Types of classes:-
1. Abstract: An instance of the class cannot be created.
Usually this means the class is intended to serve as a base
class. Abstract methods must be overridden in a derived
class. If any method of a class is abstract, the entire
class must be declared as abstract.
2. Sealed: The class cannot serve as a base class for
another class (it can't be derived from). A class cannot be
both abstract and sealed. Sealed methods are methods that
override an inherited virtual method having the same
signature. When a method is sealed, it cannot be overridden
in a derived class. Sealed classes are used to restrict the
inheritance feature of object oriented programming. Once a
class is defined as sealed class, this class cannot be
inherited.
3. New: Used only with nested classes. "New" indicates that
the class hides an inherited member of the same name.
assembly.
- Constructor Modifiers :-
A class defines data members, methods and nested types. A
constructor is a special method that is normally used to
initialize the data members of a class, and its name is
always the same as the name of the class. Constructors have
no return value, and any number of constructors can be
defined within a class. If no constructor is defined, the C#
compiler provides a default constructor having no parameters.
- Methods:-
Methods are always defined within the bounds of a class or
struct. Methods can be instance (called as an instance of
the type within which the method is defined) or static,
where the method is associated with the type itself. Methods
can be declared as virtual, abstract, or sealed. Methods can
be overloaded, overridden and hidden.
Virtual methods can be overridden by a derived class using
the override keyword.



Reference :
http://intquesans.blogspot.com/2011/05/types-of-classes.html

Is This Answer Correct ?    2 Yes 0 No

What are the 4 types of classes in ADO.NET?..

Answer / rajveer sodha

There are five Ado.net classes
* Sqlconnection
* SQlCommand
* SqlDataReader
* Dataset
* SqlDataAdaptor

Is This Answer Correct ?    11 Yes 12 No

Post New Answer

More ADO.NET Interview Questions

What is a column variable?

0 Answers  


What is ado data control?

0 Answers  


What is ado and rdo?

0 Answers  


What are the different methods available under the sqlcommand class to access the data?

0 Answers  


What is difference between dataset and datatable?

0 Answers  






What is the maximum pool size in ado.net connection string?

0 Answers  


What is the namespaces being used to access oracle database?

0 Answers  


What providers does ado.net uses internally ?

3 Answers   Digital GlobalSoft,


What are the parameters that control most of connection pooling behaviours?

0 Answers  


What is a datagridview?

0 Answers  


What is namespace in ado.net?

0 Answers  


I want to ask u that if i add radio button in ado.net form,and how radion button data insert in SQL2005 Database...

6 Answers  


Categories