Components/General/Validator/Castle.Components.Validator/Validators/NotSameValueValidator.cs

   1 // Copyright 2004-2007 Castle Project - http://www.castleproject.org/
   2 //
   3 // Licensed under the Apache License, Version 2.0 (the "License");
   4 // you may not use this file except in compliance with the License.
   5 // You may obtain a copy of the License at
   6 //
   7 //     http://www.apache.org/licenses/LICENSE-2.0
   8 //
   9 // Unless required by applicable law or agreed to in writing, software
  10 // distributed under the License is distributed on an "AS IS" BASIS,
  11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 // See the License for the specific language governing permissions and
  13 // limitations under the License.
  14
  15 namespace Castle.Components.Validator
  16 {
  17         /// <summary>
  18         /// Validates that the content is not set to the specified value
  19         /// </summary>
  20         public class NotSameValueValidator : AbstractValidator
  21         {
  22                 private readonly object value;
  23
  24                 /// <summary>
  25                 /// Initializes a new instance of the <see cref="SameAsValidator"/> class.
  26                 /// </summary>
  27                 public NotSameValueValidator(object value)
  28                 {
  29                         this.value = value;
  30                 }
  31
  32                 /// <summary>
  33                 /// Validates that the <c>fieldValue</c>
  34                 /// is not set to the specified value
  35                 /// </summary>
  36                 /// <param name="instance">The target type instance</param>
  37                 /// <param name="fieldValue">The property/field value. It can be null.</param>
  38                 /// <returns>
  39                 ///     <c>true</c> if the value is accepted (has passed the validation test)
  40                 /// </returns>
  41                 public override bool IsValid(object instance, object fieldValue)
  42                 {
  43                         return Equals(value, fieldValue) == false;
  44                 }
  45
  46                 /// <summary>
  47                 /// Gets a value indicating whether this validator supports browser validation.
  48                 /// </summary>
  49                 /// <value>
  50                 ///     <see langword="true"/> if browser validation is supported; otherwise, <see langword="false"/>.
  51                 /// </value>
  52                 public override bool SupportsBrowserValidation
  53                 {
  54                         get { return false; }
  55                 }
  56
  57                 /// <summary>
  58                 /// Returns the key used to internationalize error messages
  59                 /// </summary>
  60                 /// <value></value>
  61                 protected override string MessageKey
  62                 {
  63                         get { return MessageConstants.NotSameAsMessage; }
  64                 }
  65
  66                 /// <summary>
  67                 /// Builds the error message.
  68                 /// </summary>
  69                 /// <returns></returns>
  70                 protected override string BuildErrorMessage()
  71                 {
  72                         return string.Format(GetString(MessageConstants.NotSameAsMessage), value);
  73                 }
  74         }
  75 }