Answer / shashikant kothavale

DataAdapter,Dataset,DataReader and Command Objects

Answer / shwetha

The 4 Types of Classes in Ado.Net are

* Sqlconnection
* SQlCommand
* SqlDataReader
* SqlDataAdaptor

Answer / tahir

The 4 Types of Classes in Ado.Net are

* Sqlconnection
* SQlCommand
* SqlDataReader
* SqlDataAdaptor

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

Answer / rajveer sodha

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

When we are running the Application, if any errors occur in the Stored Procedure then how will the server identify the errors?

5 Answers   HCL,

What are the essential features of ado.net?

0 Answers  

On ODP.net ?

1 Answers   MMTS,

What is ado data control?

0 Answers  

Is it possible to load multiple tables in a Dataset?

0 Answers  

What are different types of Commands available with DataAdapter ?

1 Answers   Arigo Infotech,

What are the benefits of using ado.net?

0 Answers  

What are the major difference between classic ADO and ADO.NET?

0 Answers  

What is the default timeout specified for "sqlcommand.commandtimeout" property?

0 Answers  

Explain the advantage of ADO.Net?

0 Answers  

What is difference between Dataview and Datatable?

0 Answers  

How do you update a dataset in ado.net?

0 Answers