RequiredAttribute Constructor ()

 

Initializes a new instance of the RequiredAttribute class.

Namespace:   System.ComponentModel.DataAnnotations
Assembly:  System.ComponentModel.DataAnnotations (in System.ComponentModel.DataAnnotations.dll)

public RequiredAttribute()

The following example shows how to use the RequiredAttribute constructor. If validation fails, the example displays a validation error message that is provided by Dynamic Data.

// Require that the MiddleName is not null.
// Use standard validation error.
[Required()]
public object MiddleName;

Universal Windows Platform
Available since 8
.NET Framework
Available since 3.5
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 3.0
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