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ConfigurationValidatorAttribute Class

Serves as the base class for the System.Configuration validator attribute types.

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

public class ConfigurationValidatorAttribute extends Attribute

All the ASP.NET configuration standard validator attribute types derive from ConfigurationValidatorAttribute. You can use this type to create your own custom validator attribute.

The following code examples demonstrate how to create two custom validators using the ConfigurationValidatorAttribute type. The first example performs validation using hard-coded parameters; the second example performs validation using the parameters assigned to it at the time it is applied to the related section property. This code example also contains three supporting files. The first file contains the custom section that uses the validators described above, the second file contains a custom converter type, and the third file contains the console application that builds and uses the custom validators and the section that contains them.

The following code example shows how to create a fixed validator with hard-coded parameters.

No code example is currently available or this language may not be supported.

The following code example shows how to create a programmable validator.

No code example is currently available or this language may not be supported.

The following code example shows how to create a custom section using the previous validators.

No code example is currently available or this language may not be supported.

The following code example shows how to create a custom converter.

No code example is currently available or this language may not be supported.

The following code example shows how to create the console application that builds and uses the custom validators and their containing section.

No code example is currently available or this language may not be supported.

The following code example is a configuration excerpt used by the previous example.

<?xml version="1.0" encoding="utf-8"?>
<configuration>
    <configSections>
        <section name="Cars" type="Samples.AspNet.SelectCar, ConfigValidatorAttribute, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" allowLocation="false" allowDefinition="Everywhere" allowExeDefinition="MachineToApplication" restartOnExternalChanges="true" requirePermission="true" />
    </configSections>
    <Cars commute="Make:AlfaRomeo Color:Blue Miles:10000 Year:2002"
        dream="Make:Ferrari Color:Red Miles:10 Year:2005" />
</configuration>

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

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

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

.NET Framework

Supported in: 3.5, 3.0, 2.0

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