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ValidationAttribute.ErrorMessageString Property

Gets the error message to associate with a validation control when a validation fails.

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

protected string ErrorMessageString { get; }

Property Value

Type: System.String
The error message to display when a validation fails.

ExceptionCondition
InvalidOperationException

The resource accessors used to retrieve an error message fails. Requires both ErrorMessageResourceType and ErrorMessageResourceName

The error message string is set by either ErrorMessage or by the result from evaluating both the ErrorMessageResourceType and ErrorMessageResourceName.

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5 SP1

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