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//------------------------------------------------------------------------------
// <copyright file="RegexStringValidator.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
using System;
using System.Collections;
using System.IO;
using System.Reflection;
using System.Security.Permissions;
using System.Xml;
using System.Collections.Specialized;
using System.Globalization;
using System.ComponentModel;
using System.Security;
using System.Text;
using System.Text.RegularExpressions;
namespace System.Configuration {
public class RegexStringValidator : ConfigurationValidatorBase {
private string _expression;
private Regex _regex;
public RegexStringValidator(string regex) {
if (string.IsNullOrEmpty(regex)) {
throw ExceptionUtil.ParameterNullOrEmpty("regex");
}
_expression = regex;
_regex = new Regex(regex, RegexOptions.Compiled);
}
public override bool CanValidate(Type type) {
return (type == typeof(string));
}
public override void Validate(object value) {
ValidatorUtils.HelperParamValidation(value, typeof(string));
if (value == null) {
return;
}
Match match = _regex.Match((string)value);
if (!match.Success) {
throw new ArgumentException(SR.GetString(SR.Regex_validator_error, _expression));
}
}
}
}
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