Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / Configuration / System / Configuration / StringValidator.cs / 1305376 / StringValidator.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- 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 StringValidator : ConfigurationValidatorBase { private int _minLength; private int _maxLength; private string _invalidChars; public StringValidator(int minLength) : this(minLength, int.MaxValue, null) { } public StringValidator(int minLength, int maxLength) : this(minLength, maxLength, null) { } public StringValidator(int minLength, int maxLength, string invalidCharacters) { _minLength = minLength; _maxLength = maxLength; _invalidChars = invalidCharacters; } public override bool CanValidate(Type type) { return (type == typeof(string)); } public override void Validate(object value) { ValidatorUtils.HelperParamValidation(value, typeof(string)); string data = value as string; int len = (data == null ? 0 : data.Length); if (len < _minLength) { throw new ArgumentException(SR.GetString(SR.Validator_string_min_length, _minLength)); } if (len > _maxLength) { throw new ArgumentException(SR.GetString(SR.Validator_string_max_length, _maxLength)); } // Check if the string contains any invalid characters if ((len > 0) && (_invalidChars != null) && (_invalidChars.Length > 0)) { char[] array = new char[_invalidChars.Length]; _invalidChars.CopyTo(0, array, 0, _invalidChars.Length); if (data.IndexOfAny(array) != -1) { throw new ArgumentException(SR.GetString(SR.Validator_string_invalid_chars, _invalidChars)); } } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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