StringValidatorAttribute Class
Assembly: System.Configuration (in system.configuration.dll)
'Declaration <AttributeUsageAttribute(AttributeTargets.Property)> _ Public NotInheritable Class StringValidatorAttribute Inherits ConfigurationValidatorAttribute 'Usage Dim instance As StringValidatorAttribute
/** @attribute AttributeUsageAttribute(AttributeTargets.Property) */ public final class StringValidatorAttribute extends ConfigurationValidatorAttribute
AttributeUsageAttribute(AttributeTargets.Property) public final class StringValidatorAttribute extends ConfigurationValidatorAttribute
You use the StringValidatorAttribute to decorate a configuration property. This is to instruct the .NET Framework to validate the property using the StringValidator and pass to it the value of the decorating parameters.
You may apply StringValidatorAttribute objects to property types only.
The following example shows how to decorate the properties of a custom ConfigurationSection object using the StringValidatorAttribute object.
<ConfigurationProperty("fileName", _ DefaultValue:="default.txt", _ IsRequired:=True, _ IsKey:=False), _ StringValidator( _ InvalidCharacters:=" ~!@#$%^&*()[]{/;'""|\", _ MinLength:=1, _ MaxLength:=60)> _ Public Property FileName() As String Get Return CStr(Me("fileName")) End Get Set(ByVal value As String) Me("fileName") = value End Set End Property
System.Attribute
System.Configuration.ConfigurationValidatorAttribute
System.Configuration.StringValidatorAttribute
Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.