private void PhoneApplicationPage_BindingValidationError(object sender, ValidationErrorEventArgs e)
 {
     if (e.Action == ValidationErrorEventAction.Added)
     {
         MessageBox.Show(e.Error.Exception.Message, "Error", MessageBoxButton.OK);
     }
 }

 /// <summary>
 /// プレゼン用 テキストボックスのバリデーションエラーを捕まえることができる
 /// </summary>
 /// <param name="sender">送信オブジェクト</param>
 /// <param name="e">バリデーションエラーに関するパラメータ</param>
 private void OnValidationError(object sender, ValidationErrorEventArgs e)
 {
     if (e.Action == ValidationErrorEventAction.Added)
     {
         // バリデーションエラーが発生したときの処理を追加できます
     }
 }

 private void ValidationError(object sender, ValidationErrorEventArgs e)
 {
     if (e.Action == ValidationErrorEventAction.Added)
     {
         MessageBox.Show(e.Error.ErrorContent.ToString());
     }
 }

 /// <summary>
 /// 
 /// </summary>
 /// <param name="sender"></param>
 /// <param name="e"></param>
 void UIStaff_BindingValidationError(object sender, ValidationErrorEventArgs e)
 {
     if (e.Action == ValidationErrorEventAction.Added)
         hasError = true;
     else if (e.Action == ValidationErrorEventAction.Removed)
         hasError = false;
 }

 public void EntityValidationError(object sender, ValidationErrorEventArgs e)
 {
     if (e.Action == ValidationErrorEventAction.Added)
         EntityErrorCount++;
     else if (EntityErrorCount > 0)
         EntityErrorCount--;
 }

 private void Validation_Error(object sender, ValidationErrorEventArgs e)
 {
     if (e.Action == ValidationErrorEventAction.Added)
         _errors++;
     else
         _errors--;
 }

 private void grdConfig_ValidationError(object sender, ValidationErrorEventArgs e) {
     if (e.Action == ValidationErrorEventAction.Added)
         _validationErrors.Add(e.Error);
     else
         _validationErrors.Remove(e.Error);
     btSave.IsEnabled = _validationErrors.Count == 0;
 }

 private void Validation_Error(object sender, ValidationErrorEventArgs e)
 {
     if (e.Action == ValidationErrorEventAction.Added)
         _noOfErrorsOnScreen++;
     else
         _noOfErrorsOnScreen--;
 }

 public static void CheckEntityListError(ValidationErrorEventArgs e)
 {
     if (e.Action == ValidationErrorEventAction.Added)
         EntityListErrorCount++;
     else if (EntityListErrorCount > 0)
         EntityListErrorCount--;
 }

    /// <summary>
    /// 使用数据验证后，对数据进行验证
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="args"></param>
    private static void validationError(object sender, ValidationErrorEventArgs args)
    {
        if ((sender as FrameworkElement).DataContext != null && (sender as FrameworkElement).DataContext as IDataValidationInfo != null)
            {
                IDataValidationInfo dataValition = (sender as FrameworkElement).DataContext as IDataValidationInfo;

                bool isSuccess = (bool)((args.OriginalSource as FrameworkElement).GetValue(Validation.HasErrorProperty));

                Binding bind = ((System.Windows.Data.BindingExpression)((System.Windows.Controls.ValidationError)args.Error).BindingInError).ParentBinding;
                if (bind != null)
                {
                    string propetyName;
                    if (bind.Source != null)
                    {
                        propetyName = bind.Path.Path + "@" + bind.Source.GetHashCode();
                    }
                    else
                    {
                        propetyName = bind.Path.Path + "@" + (sender as FrameworkElement).DataContext.GetHashCode();
                    }

                    if (isSuccess && args.Action == ValidationErrorEventAction.Added)
                    {
                        dataValition.Added(propetyName, args.Error.ErrorContent);
                    }
                    else if (!isSuccess && args.Action == ValidationErrorEventAction.Removed)
                    {
                        dataValition.Removed(propetyName);
                    }
                }
            }
    }

 /// <summary>
 /// Shows the errors in a message box if any
 /// </summary>
 private void ControlsPanel_BindingValidationError(object sender, ValidationErrorEventArgs e)
 {
     if (e.Action == ValidationErrorEventAction.Added)
     {
         hasErrors = true;
         MessageBox.Show(e.Error.ErrorContent.ToString());
     }
 }

		private void Validation_Error(object sender, ValidationErrorEventArgs e)
		{
			if (e.Action == ValidationErrorEventAction.Added)
				errorCount++;
			if (e.Action == ValidationErrorEventAction.Removed)
				errorCount--;

			if (this.ok != null)
				this.ok.IsEnabled = (errorCount == 0);
		}

 private void SurNameTextBox_Error(object sender, ValidationErrorEventArgs e)
 {
     if (e.Action == ValidationErrorEventAction.Added)
     {
         System.Console.Beep();
         MessageBox.Show(e.Error.ErrorContent.ToString());
     }
     else
         System.Diagnostics.Trace.WriteLine("Validation error cleared");
 }

 private void txt_Error(object sender, ValidationErrorEventArgs e)
 {
     if (e.Action == ValidationErrorEventAction.Added)
     {
         ((Control)sender).ToolTip = e.Error.ErrorContent.ToString();
     }
     else
     {
         ((Control)sender).ToolTip = "";
     }
 }

 private void Element_ValidationError(object sender, ValidationErrorEventArgs e)
 {
     if (e.Action == ValidationErrorEventAction.Added && !_errorMessages.Contains(e.Error.ErrorContent.ToString()))
     {
     _errorMessages.Add(e.Error.ErrorContent.ToString());
     }
     else if (e.Action == ValidationErrorEventAction.Removed && _errorMessages.Contains(e.Error.ErrorContent.ToString()))
     {
     _errorMessages.Remove(e.Error.ErrorContent.ToString());
     }
 }

 void MainPage_BindingValidationError(object sender, ValidationErrorEventArgs e)
 {
     // If the app is running outside of the debugger then report the exception using a ChildWindow control.
     if (!System.Diagnostics.Debugger.IsAttached)
     {
         // NOTE: This will allow the application to continue running after an exception has been thrown but not handled.
         // For production applications this error handling should be replaced with something that will report the error to the website and stop the application.
         e.Handled = true;
         ErrorWindow.CreateNew(e.ToString());
     }
 }

 private void TextBox_Error(object sender, ValidationErrorEventArgs e)
 {
     if (e.Action == ValidationErrorEventAction.Added) 
     { 
         _errors++;
     }
     else 
     { 
         _errors--; 
     }
 }

 private void ScopeElement_BindingValidationError(object sender, ValidationErrorEventArgs e)
 {
     if (e.Action == ValidationErrorEventAction.Removed)
     {
         Errors.Remove(e.Error);
     }
     else if (e.Action == ValidationErrorEventAction.Added)
     {
         Errors.Add(e.Error);
     }
 }

 private void TextBox_BindingValidationError(object sender, ValidationErrorEventArgs e)
 {
     if (e.Action == ValidationErrorEventAction.Added)
       {
      userNameTextBox.Background = new SolidColorBrush(Colors.Red);
       }
       else if (e.Action == ValidationErrorEventAction.Removed)
       {
      userNameTextBox.Background = new SolidColorBrush(Colors.White);
       }
 }

 private void ContentPanel_BindingValidationError(object sender, ValidationErrorEventArgs e)
 {
     TextBox temp = (TextBox)sender;
     if (e.Action == ValidationErrorEventAction.Added)
     {
         temp.Background = new SolidColorBrush(Colors.Red);
     }
     else
     {
         temp.Background = new SolidColorBrush(Colors.White);
     }
 }