qr code generator vb.net free ch a pter si x in VB.NET

Printer Code 39 Full ASCII in VB.NET ch a pter si x

ch a pter si x
Code39 Creation In Visual Basic .NET
Using Barcode creation for VS .NET Control to generate, create Code-39 image in Visual Studio .NET applications.
www.OnBarcode.com
Code-39 Reader In VB.NET
Using Barcode recognizer for Visual Studio .NET Control to read, scan read, scan image in .NET framework applications.
www.OnBarcode.com
A validation rule set is a combination of all the rules with the same name, which may be located in a configuration file or other configuration source, in attributes defined within the target type, and implemented through self-validation. In other words, a rule set includes any type of validation rule that has a specified name. Rule set names are case-sensitive. The two rule sets named MyRuleset and MyRuleSet are different! How do you apply a name to a validation rule And what happens if you don t specify a name In fact, the way it works is relatively simple, even though it may appear complicated when you look at configuration and attributes, and take into account how these are actually processed. To start with, every validation rule is a member of some rule set. If you do not specify a name, that rule is a member of the default rule set; effectively, this is the rule set whose name is an empty string. When you do specify a name for a rule, it becomes part of the rule set with that name. Assigning Validation Rules to Rule Sets You specify rule set names in a variety of ways, depending on the location and type of the rule: In configuration. You define a type that you want to apply rules to, and then define one or more rule sets for that type. To each rule set you add the required combination of validators, each one representing a validation rule within that rule set. You can specify one rule set for each type as the default rule set for that type. The rules within this rule set are then treated as members of the default (unnamed) rule set, as well as that named rule set. In Validation block validator attributes applied to classes and their members. Every validation attribute will accept a rule set name as a parameter. For example, you specify that a NotNullValidator is a member of a rule set named MyRuleset, like this.
Make Bar Code In VB.NET
Using Barcode drawer for .NET framework Control to generate, create barcode image in .NET framework applications.
www.OnBarcode.com
Read Barcode In VB.NET
Using Barcode recognizer for Visual Studio .NET Control to read, scan read, scan image in VS .NET applications.
www.OnBarcode.com
[NotNullValidator(MessageTemplate = "Cannot be null", Ruleset = "MyRulesetName")]
Create Code 39 Full ASCII In C#.NET
Using Barcode printer for VS .NET Control to generate, create Code 39 Extended image in .NET applications.
www.OnBarcode.com
Making Code-39 In VS .NET
Using Barcode encoder for ASP.NET Control to generate, create USS Code 39 image in ASP.NET applications.
www.OnBarcode.com
validation rule sets
USS Code 39 Creator In .NET Framework
Using Barcode drawer for .NET Control to generate, create ANSI/AIM Code 39 image in .NET applications.
www.OnBarcode.com
Creating Barcode In Visual Basic .NET
Using Barcode maker for .NET framework Control to generate, create bar code image in Visual Studio .NET applications.
www.OnBarcode.com
In SelfValidation attributes within a class. You add the Ruleset parameter to
Print European Article Number 13 In Visual Basic .NET
Using Barcode creation for VS .NET Control to generate, create EAN 13 image in .NET framework applications.
www.OnBarcode.com
Create Quick Response Code In VB.NET
Using Barcode encoder for .NET Control to generate, create Denso QR Bar Code image in VS .NET applications.
www.OnBarcode.com
the attribute to indicate which rule set this self-validation rule belongs to. You can define multiple self-validation methods in a class, and add them to different rule sets if required.
Linear 1D Barcode Creation In Visual Basic .NET
Using Barcode creator for .NET framework Control to generate, create 1D image in Visual Studio .NET applications.
www.OnBarcode.com
Painting Identcode In Visual Basic .NET
Using Barcode creation for Visual Studio .NET Control to generate, create Identcode image in Visual Studio .NET applications.
www.OnBarcode.com
[SelfValidation(Ruleset = "MyRulesetName")]
Create EAN / UCC - 13 In None
Using Barcode generation for Excel Control to generate, create EAN / UCC - 13 image in Microsoft Excel applications.
www.OnBarcode.com
Painting GS1 - 13 In Objective-C
Using Barcode creation for iPhone Control to generate, create EAN-13 image in iPhone applications.
www.OnBarcode.com
Configuring Validation Block Rule Sets The Enterprise Library configuration console makes it easy to define rule sets for specific types that you will validate. Each rule set specifies a type to which you will apply the rule set, and allows you to specify a set of validation rules. You can then apply these rules as a complete set to an instance of an object of the defined type.
EAN13 Reader In Java
Using Barcode reader for Java Control to read, scan read, scan image in Java applications.
www.OnBarcode.com
Creating EAN13 In Java
Using Barcode printer for Java Control to generate, create EAN-13 Supplement 5 image in Java applications.
www.OnBarcode.com
ba nishing va lidation complication
Generate PDF417 In .NET Framework
Using Barcode maker for Reporting Service Control to generate, create PDF-417 2d barcode image in Reporting Service applications.
www.OnBarcode.com
GS1 - 12 Generation In Visual Studio .NET
Using Barcode drawer for Reporting Service Control to generate, create UPCA image in Reporting Service applications.
www.OnBarcode.com
figure 2 The configuration for the examples
UPC-A Supplement 2 Scanner In Visual Basic .NET
Using Barcode reader for Visual Studio .NET Control to read, scan read, scan image in Visual Studio .NET applications.
www.OnBarcode.com
Bar Code Reader In Visual Studio .NET
Using Barcode recognizer for .NET Control to read, scan read, scan image in .NET applications.
www.OnBarcode.com
Figure 2 shows the configuration console with the configuration used in the example application for this chapter. It defines a rule set named MyRuleset for the validated type (the Product class). MyRuleset is configured as the default rule set, and contains a series of validators for all of the properties of the Product type. These validators include two Or Composite Validators (which contain other validators) for the DateDue and Description properties, three validators that will be combined with the And operation for the ID property, and individual validators for the remaining properties. When you highlight a rule, member, or validator in the configuration console, it shows connection lines between the configured items to help you see the relationships between them. Specifying Rule Sets When Validating You can specify a rule set name when you create a type validator that will validate an instance of a type. If you use the ValidatorFactory facade to create a type validator for a type, you can specify a rule set name as a parameter of the CreateValidator method. If you create an Object Validator or an Object Collection Validator programmatically by calling the constructor, you can specify a rule set name as a parameter of the constructor. Finally, if you resolve a validator for a type through the Enterprise Library Container, you can specify a rule set name as the string key value. We look in more detail at the options for creating validators later in this chapter. If you specify a rule set name when you create a validator for an object, the Validation block will apply only those validation rules that are part of the specified rule set. It will, by default, apply all rules with the specified name that it can find in configuration, attributes, and self-validation.
Copyright © OnBarcode.com . All rights reserved.