自定义验证消息，特定于语言

Question

我有一个看起来像这样的模型：

[LocalizedRegularExpression(@"^[\w-\.]+@([\w-]+\.)+[\w-]{2,4}$", "RedesignEmailValidationError")]
public string EmailAddress { get; set; }

[Compare("EmailAddress", ErrorMessage = "Emails mismatch!")]
public string EmailConfirm { get; set; }

问题是错误消息未本地化。 处理此问题的最佳方法是什么？

PS：我收到的语言特定文本需要在模型中的此表格上显示； 理想情况下，我想使用那里提供的文字。

Answer 1

您需要使用ErrorMessageResourceName和ErrorMessageResourceType

应该是这样的：

[Compare("EmailAddress", ErrorMessageResourceName = "ConfirmEmailErrorMessage", ErrorMessageResourceType=typeof(your_resource_type)]
public string EmailConfirm { get; set; }

Answer 2

另外，如果您不依赖默认资源提供程序，则必须自己实现。

喜欢：

[AttributeUsage(AttributeTargets.Class | AttributeTargets.Method | AttributeTargets.Property | AttributeTargets.Event)]
public sealed class LocalizedDisplayNameAttribute : DisplayNameAttribute {
  public LocalizedDisplayNameAttribute() {
  }

  public LocalizedDisplayNameAttribute(object context) {
    Context = context;
  }

  public object Context { get; set; }

  public override string DisplayName {
    get {
      // TODO: override based on CultureInfo.CurrentCulture and Context here 
      return "LocalizedAttributeName";
    }
  }
}

[AttributeUsage(AttributeTargets.Property)]
public class LocalizedCompareAttribute : CompareAttribute {

  public object Context { get; set; }

  public LocalizedCompareAttribute(string otherProperty)
    : base(otherProperty) {
  }

  public override string FormatErrorMessage(string name) {
    // TODO: override based on CultureInfo.CurrentCulture and Context here 
    string format = "Field '{0}' should have the same value as '{1}'.";
    return string.Format(CultureInfo.CurrentCulture, format, name, OtherPropertyDisplayName);      
  }
}

等等

用法：

[LocalizedCompare("EmailAddress", Context = "ResourceKey_EmailMismatch")]
[LocalizedDisplayName("ResourceKey_Email")]
public string EmailConfirm { get; set; }