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RegexStringValidatorAttribute.ValidatorInstance Property

Gets an instance of the RegexStringValidator class.

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

public override ConfigurationValidatorBase ValidatorInstance { get; }

You use the ValidatorInstance property to perform string validation by calling its Validate method.

The following example shows how to use the ValidatorInstance method.

            ConfigurationValidatorBase valBase;

            RegexStringValidatorAttribute rstrValAttr =
            new RegexStringValidatorAttribute(@"\w+\S*");

            // Get the regular expression string.
            string regex = rstrValAttr.Regex;
            Console.WriteLine("Regular expression: {0}", regex);

            string badValue = "&%$bbb";
            string goodValue = "filename.txt";

                valBase = rstrValAttr.ValidatorInstance;
                // valBase.Validate(badValue);
            catch (ArgumentException e)
                // Display error message.
                string msg = e.ToString();

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