RegexStringValidatorAttribute Constructor (System.Configuration)

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.NET Framework Class Library

RegexStringValidatorAttribute Constructor

Initializes a new instance of the RegexStringValidatorAttribute object.

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

Syntax

Visual Basic

Public Sub New ( _
	regex As String _
)

public RegexStringValidatorAttribute(
	string regex
)

Visual C++

public:
RegexStringValidatorAttribute(
	String^ regex
)

new : 
        regex:string -> RegexStringValidatorAttribute

Parameters

regex: Type: System.String
The string to use for regular expression validation.

Remarks

The regex parameter contains the regular expression pattern that a string must match before it can be assigned to the decorated configuration-element property.

You use this constructor in the attributed model to ensure that the string value assigned to the related property contains only the allowed characters.

Examples

The following example shows how to use the RegexStringValidatorAttribute constructor.

Visual Basic


<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


[ConfigurationProperty("alias2", DefaultValue = "alias.txt",
    IsRequired = true, IsKey = false)]
[RegexStringValidator(@"\w+\S*")]
public string Alias2
{
    get
    {
        return (string)this["alias2"];
    }
    set
    {
        this["alias2"] = value;
    }
}

Version Information

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Platforms

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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

Reference

RegexStringValidatorAttribute Class

System.Configuration Namespace

RegexStringValidator