RegexStringValidatorAttribute Class

Definition

Namespace:

System.Configuration

Assembly:

System.Configuration.ConfigurationManager.dll

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

public ref class RegexStringValidatorAttribute sealed : System::Configuration::ConfigurationValidatorAttribute

[System.AttributeUsage(System.AttributeTargets.Property)]
public sealed class RegexStringValidatorAttribute : System.Configuration.ConfigurationValidatorAttribute

[<System.AttributeUsage(System.AttributeTargets.Property)>]
type RegexStringValidatorAttribute = class
    inherit ConfigurationValidatorAttribute

Public NotInheritable Class RegexStringValidatorAttribute
Inherits ConfigurationValidatorAttribute

Inheritance

Object

Attribute

ConfigurationValidatorAttribute

RegexStringValidatorAttribute

Attributes

AttributeUsageAttribute

Examples

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 string Alias2
{
    get
    {
        return (string)this["alias2"];
    }
    set
    {
        this["alias2"] = value;
    }
}

<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

Remarks

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

You can only apply RegexStringValidatorAttribute objects to property types.

Constructors

RegexStringValidatorAttribute(String)

Initializes a new instance of the RegexStringValidatorAttribute object.

Properties

Regex	Gets the string used to perform regular-expression validation.
TypeId	When implemented in a derived class, gets a unique identifier for this Attribute. (Inherited from Attribute)
ValidatorInstance	Gets an instance of the RegexStringValidator class.
ValidatorType	Gets the type of the validator attribute. (Inherited from ConfigurationValidatorAttribute)

Methods

Equals(Object)	Returns a value that indicates whether this instance is equal to a specified object. (Inherited from Attribute)
GetHashCode()	Returns the hash code for this instance. (Inherited from Attribute)
GetType()	Gets the Type of the current instance. (Inherited from Object)
IsDefaultAttribute()	When overridden in a derived class, indicates whether the value of this instance is the default value for the derived class. (Inherited from Attribute)
Match(Object)	When overridden in a derived class, returns a value that indicates whether this instance equals a specified object. (Inherited from Attribute)
MemberwiseClone()	Creates a shallow copy of the current Object. (Inherited from Object)
ToString()	Returns a string that represents the current object. (Inherited from Object)

See also

• ConfigurationValidatorAttribute
• ConfigurationPropertyAttribute
• RegexStringValidator