Question

我正在尝试将NotEqual客户端规则添加到找到的here的MVC 5项目中。

除了我似乎无法理解传递到规则中的错误消息外，这一切似乎都在起作用。我可以在调试器的私有字段中看到它，只是不确定如何在GetClientValidationRules方法中找到它。问题出在生成错误消息的行上，validator.ErrorMessageSource.GetString()不再存在。

public class NotEqualClientRule : FluentValidationPropertyValidator 
{
  public static ModelValidator Create(ModelMetadata meta, ControllerContext context, PropertyRule propertyDescription, IPropertyValidator validator) 
  {
    return new NotEqualClientRule(meta, context, propertyDescription, validator);
  }

  public NotEqualClientRule(ModelMetadata metadata, ControllerContext controllerContext, PropertyRule propertyDescription, IPropertyValidator validator) : base(metadata, controllerContext, propertyDescription, validator) 
  {
    ShouldValidate = false; //This is necessary - don't want to kick in during model binding.
  }

  public override IEnumerable<ModelClientValidationRule> GetClientValidationRules() 
  {
    if (!this.ShouldGenerateClientSideRules()) 
    {
        yield break;
    }

    var validator = Validator as NotEqualValidator;

    var errorMessage = new MessageFormatter()
        .BuildMessage(validator.ErrorMessageSource.GetString());

    var rule = new ModelClientValidationRule 
    {
        ErrorMessage = errorMessage,
        ValidationType = "notequal"
    };

    if (validator.MemberToCompare != null) 
    {
        rule.ValidationParameters["field"] = String.Format("#{0}", validator.MemberToCompare.Name);
    } 
    else 
    {
        rule.ValidationParameters["field"] = validator.ValueToCompare;
    }

    yield return rule;
  }
}

Answer 1

更改

var errorMessage = new MessageFormatter().BuildMessage(validator.ErrorMessageSource.GetString());

到

var formatter = new MessageFormatter().AppendPropertyName(Rule.PropertyName);
string errorMessage = formatter.BuildMessage(validator.Options.ErrorMessageSource.GetString(null));

让我了解了我在验证规则中设置的错误消息。

FluentValidation NotEqual客户端规则

1 个答案: