RequiredAttribute Constructor

Definition

Namespace:

System.ComponentModel.DataAnnotations

Assembly:

System.ComponentModel.Annotations.dll

Source:

RequiredAttribute.cs

Initializes a new instance of the RequiredAttribute class.

public:
 RequiredAttribute();

public RequiredAttribute ();

Public Sub New ()

Examples

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;

' Require that the MiddleName is not null.
' Use standard validation error.
<Required()> _
Public MiddleName As Object