RegexStringValidatorAttribute Class
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RegexStringValidatorAttribute Class

 

Declaratively instructs the .NET Framework to perform string validation on a configuration property using a regular expression. This class cannot be inherited.

Namespace:   System.Configuration
Assembly:  System.Configuration (in System.Configuration.dll)

System.Object
  System.Attribute
    System.Configuration.ConfigurationValidatorAttribute
      System.Configuration.RegexStringValidatorAttribute

<AttributeUsageAttribute(AttributeTargets.Property)>
Public NotInheritable Class RegexStringValidatorAttribute
	Inherits ConfigurationValidatorAttribute

NameDescription
System_CAPS_pubmethodRegexStringValidatorAttribute(String)

Initializes a new instance of the RegexStringValidatorAttribute object.

NameDescription
System_CAPS_pubpropertyRegex

Gets the string used to perform regular-expression validation.

System_CAPS_pubpropertyTypeId

When implemented in a derived class, gets a unique identifier for this Attribute.(Inherited from Attribute.)

System_CAPS_pubpropertyValidatorInstance
System_CAPS_pubpropertyValidatorType

Gets the type of the validator attribute.(Inherited from ConfigurationValidatorAttribute.)

NameDescription
System_CAPS_pubmethodEquals(Object)

This API supports the product infrastructure and is not intended to be used directly from your code. Returns a value that indicates whether this instance is equal to a specified object.(Inherited from Attribute.)

System_CAPS_pubmethodGetHashCode()

Returns the hash code for this instance.(Inherited from Attribute.)

System_CAPS_pubmethodGetType()

Gets the Type of the current instance.(Inherited from Object.)

System_CAPS_pubmethodIsDefaultAttribute()

When overridden in a derived class, indicates whether the value of this instance is the default value for the derived class.(Inherited from Attribute.)

System_CAPS_pubmethodMatch(Object)

When overridden in a derived class, returns a value that indicates whether this instance equals a specified object.(Inherited from Attribute.)

System_CAPS_pubmethodToString()

Returns a string that represents the current object.(Inherited from Object.)

NameDescription
System_CAPS_pubinterfaceSystem_CAPS_privmethod_Attribute.GetIDsOfNames(Guid, IntPtr, UInt32, UInt32, IntPtr)

Maps a set of names to a corresponding set of dispatch identifiers.(Inherited from Attribute.)

System_CAPS_pubinterfaceSystem_CAPS_privmethod_Attribute.GetTypeInfo(UInt32, UInt32, IntPtr)

Retrieves the type information for an object, which can be used to get the type information for an interface.(Inherited from Attribute.)

System_CAPS_pubinterfaceSystem_CAPS_privmethod_Attribute.GetTypeInfoCount(UInt32)

Retrieves the number of type information interfaces that an object provides (either 0 or 1).(Inherited from Attribute.)

System_CAPS_pubinterfaceSystem_CAPS_privmethod_Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr)

Provides access to properties and methods exposed by an object.(Inherited from Attribute.)

You use the RegexStringValidatorAttribute to decorate a configuration property, which will instruct the .NET Framework to validate the property using the RegexStringValidator and pass to it the value of the decorating parameters.

You may apply RegexStringValidatorAttribute objects to property types only.

The following example shows how to decorate the properties of a custom ConfigurationSection object using the RegexStringValidatorAttribute object.

<ConfigurationProperty("alias2", _
DefaultValue:="alias.txt", _
IsRequired:=True, _
IsKey:=False), _
RegexStringValidator("\w+\S*")> _
Public Property Alias2() As String
    Get
        Return CStr(Me("alias2"))
    End Get
    Set(ByVal value As String)
        Me("alias2") = value
    End Set
End Property

.NET Framework
Available since 2.0

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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