RequiredAttribute.AllowEmptyStrings Property

 

Gets or sets a value that indicates whether an empty string is allowed.

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

public bool AllowEmptyStrings { get; set; }

Property Value

Type: System.Boolean

true if an empty string is allowed; otherwise, false. The default value is false.

When you set AllowEmptyStrings to true for a data field, Dynamic Data does not perform validation and transforms the empty string to a null value. This value is then passed to the database.

If the database does not allow null values, it raises an error. To avoid this error, you must also set the ConvertEmptyStringToNull to false.

Universal Windows Platform
Available since 8
.NET Framework
Available since 4.0
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 4.0
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