The walkthroughs in the Validation QuickStarts include predefined configuration files, which are located in the main folder of each respective project. The ValidationAspNetQuickStart application configuration settings are stored in the standard Web.config file. For logistical reasons, the ValidationQuickStart application has two different configuration files, Designtime.App.config and Runtime.App.config. Make all configuration changes to Designtime.App.config, because Runtime.App.config is not intended to be directly edited.

Validators can be applied to classes in two ways, either through configuration files or by applying attributes to class members. In the Validation QuickStart applications, these approaches are demonstrated by two rule sets: "RuleSetA" and "RuleSetB."

"RuleSetA" has been defined by applying attributes to members of the Customer and Address classes in the ValidationQuickStart.BusinessEntities project. "RuleSetB" has been defined using configuration, in the file ValidationQuickStart.BusinessEntities.dll.config. This configuration is loaded into the Windows Forms and ASP.NET QuickStarts using a FileConfigurationSource defined in the Runtime.App.config and Web.config files, respectively.

The Windows Forms QuickStart also includes a file Designtime.App.config, which uses a different relative path to the ValidationQuickStart.BusinessEntities.dll.config, allowing the configuration to be edited during design time.

The ValidationQuickStart.BusinessEntities and ValidationQuickStart.CustomValidator sub-projects are referenced by both of the validation QuickStart applications. Thus, changes made to the sub-projects are reflected in both the ASP.NET and Windows Forms QuickStart versions.

This section lists the configuration settings for the Data Access Application Block and the Validation Application Block used in the QuickStarts.

Data Access Application Block Configuration

The default connection string is configured as follows:

• Name: LocalSqlServer
• ProviderName: System.Data.SqlClient

• Property	Value
  Data Source	.\SQLEXPRESS
  Integrated Security	SSPI
  AttachDBFilename	|DataDirectory|aspnetdb.mdf
  User Instance	True

Validation Application Block Configuration

The Address class is configured as follows:

Name: Address

• City
• • String Length Validator

  • Property	Value
    LowerBound	1
    LowerBoundType	Inclusive
    Negated	False
    UpperBound	30
    UpperBoundType	Inclusive

  • 
    
  • Contains Characters Validator

  • Property	Value
    CharacterSet	1234567890!@#$%^&*()-=
    ContainsCharacters	Any
    Negated	True
    MessageTemplate	City may not contain numbers or punctuation characters

  • 
    
  • Not Null Validator

  • Property	Value
    Negated	False

  • 
    
• Line 1
• • String Length Validator 1+

  • Property	Value
    LowerBound	1
    LowerBoundType	Inclusive
    Negated	False
    UpperBound	0
    UpperBoundType	Ignore

  • 
    
• Line 2
• • Or Composite Validator

  • Validator	Property	Value
    String Length Validator : 0-50	LowerBound	0
    	LowerBoundType	Inclusive
    	Negated	False
    	UpperBound	50
    	UpperBoundType	Inclusive
    Null Validator	Negated	True

  • 
    

The Customer class is configured as follows:

• Address
• • Object Validator

  • Property	Value
    TargetRuleSet	RuleSetB

  • 
    
• DateOfBirth
• • Date Range Validator

  • Property	Value
    LowerBound	1/1/1969
    LowerBoundType	Inclusive
    Negated	False
    UpperBoundType	Ignore
    MessageTemplate	Must be born after 1969

  • 
    
• Email
• • Regex Validator

  • Property	Value
    Options	None
    Pattern	\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*
    MessageTemplate	Invalid e-mail address

  • 
    
• FirstName
• • String Length Validator

  • Property	Value
    LowerBound	0
    LowerBoundType	Ignore
    Negated	False
    UpperBound	20

  • 
    
• LastName
• • Or Composite Validator

  • Validator	Property	Value
    Starts with X RegEx Validator	Options	None
    	Pattern	X.*
    	MessageTemplate	Last name must start with "X"
    Ends with z RegEx Validator	Options	None
    	Pattern	z*.
    	MessageTemplate	Last name must end with "z"

  • 
    
• RewardPoints
• • Divisible By 10

  • Property	Value
    Collection	Key: Divisor, Value: 10
    Tag	Warning
    Type	ValidationQuickStart.CustomValidators.DivisibleByValidator, ValidationQuickStart.CustomValidators, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null

  • 
    

To change or view these settings, use one of the Enterprise Library configuration tools to open the configuration file in the directory that contains the QuickStart project file. Each time you build the Windows Forms example, Visual Studio copies the configuration file to the output directory for the project (the same directory where the QuickStart executable is created), and renames it to ValidationQuickStart.exe.config.

This means that if you want to use the configuration tools to change any of the configuration settings, and you are planning to rebuild the solution, you must change the settings by opening the App.config file located in the QuickStart source directory. You can use the configuration tools to open the ValidationQuickStart.exe.config file and change the application configuration. However, these changes will be overwritten during the next successful build.