ValidationAttribute.ErrorMessageString Property
.NET Framework 4.5
Gets the localized validation error message.
Namespace: System.ComponentModel.DataAnnotations
Assembly: System.ComponentModel.DataAnnotations (in System.ComponentModel.DataAnnotations.dll)
The error message string is obtained by evaluating the ErrorMessage property or by evaluating the ErrorMessageResourceType and ErrorMessageResourceName properties. The two cases are mutually exclusive. The second case is used if you want to display a localized error message.
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.