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#Mvd data annotations how to
#Mvd data annotations .dll

Required – Enables you to mark a property as required.

RegularExpression – Enables you to validate whether the value of a property matches a specified regular expression pattern.

Range – Enables you to validate whether the value of a property falls between a specified range of values.

The namespace includes the following validator attributes: When you use the Data Annotations Model Binder, you use validator attributes to perform validation. Using the Data Annotation Validator Attributes This line of code registers the DataAnnotationsModelBinder as the default model binder for the entire ASP.NET MVC application. Add the following line of code to the Application_Start() event handler so that the Application_Start() method looks like this: Protected Sub Application_Start() You must use the version of the assembly included with the Data Annotations Model Binder Sample download.įinally, you need to register the DataAnnotations Model Binder in the Global.asax file.

NET Framework Service Pack 1 with the Data Annotations Model Binder. You cannot use the assembly included with.

#Mvd data annotations .dll

Select both the .dll assembly and the assembly and click the OK button. Next click the Browse tab and browse to the location where you downloaded (and unzipped) the Data Annotations Model Binder sample (see Figure 1).įigure 1: Adding a reference to the Data Annotations Model Binder ( Click to view full-size image)

Select the menu option Project, Add Reference. In order to use the Data Annotations Model Binder in an ASP.NET MVC application, you first need to add a reference to the .dll assembly and the assembly. Although the Data Annotations Model Binder was created by the Microsoft ASP.NET MVC team, Microsoft does not offer official product support for the Data Annotations Model Binder described and used in this tutorial. It is important to understand that the Data Annotations Model Binder is not an official part of the Microsoft ASP.NET MVC framework. The advantage of using the Data Annotation validators is that they enable you to perform validation simply by adding one or more attributes – such as the Required or StringLength attribute – to a class property.

#Mvd data annotations how to

In this tutorial, you learn how to use the Data Annotation validators to perform validation in an ASP.NET MVC application. Learn how to use the different types of validator attributes and work with them in the Microsoft Entity Framework. Take advantage of the Data Annotation Model Binder to perform validation within an ASP.NET MVC application.