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Tutorial : Enterprise Library - Using Validation Application Block

Validation Application Block (VAB) is a new addition to Enterprise Library 3.0 which is scheduled for

release in April, 2007. This walkthrough for beginners on how to configure and use VAB is based on the

Feb,2007 CTP of Enterprise Library 3.0.

group of validators to be applied on object.

The validations on a type can be configured either in code, through attributes or in app config

file. The config file can be modified using the standard enterprise library tool.

The main steps in using VAB are as follows :

o Add VAB assemblies to the references of your project.

o Add VAB config section to the app config.

o Start adding the types in this section on which validations need to be performed.

o For each type add any number of rule sets and configure validators in them.

o Call Validator methods from application code by passing the object and the rule set

namespace Employee

{

public class Employee

{

private string name;

private string empNum;

public string Name

{

get