MVC 3中DataAnnotations的整个默认错误消息列表在哪里

Question

又一个MVC本地化问题......

我正在尝试使用本地化的资源文件本地化ASP.Net MVC 3应用程序,以按照建议在视图中显示文本.

像往常一样,问题是尝试从数据注释本地化默认错误消息时.

我知道你可以在每个属性中指定资源文件和密钥:

[Required(
ErrorMessageResourceType = typeof(CustomResourceManager), 
ErrorMessageResourceName = "ResourceKey")]
public string Username { get; set; }

甚至,这是更好和首选,您可以覆盖默认消息,如下所示:ASP.NET MVC中的数据注释的默认资源,因此您可以保留属性,如:

[Required]
public string Username { get; set; }

最后一种方法是我正在遵循的方法,并且它可以工作,但只有当您要覆盖的DataAnnotation具有ONE和ONLY ONE错误消息时,因为它总是查找与自定义资源文件中的属性相同的资源键(例如"Required"需要资源文件中的"RequiredAttribute"条目)

其他属性(如StringLength)具有多个错误消息,具体取决于您使用的可选参数.所以,如果你有一个像这样的模型:

public class Person
{
    [Required]
    [StringLengthLocalizedAttribute(10, MinimumLength = 5)]
    [Display(Name = "User name")]
    public string UserName { get; set; }
}

错误消息是" 字段用户名必须是最小长度为5且最大长度为10的字符串. "

如果您将StringLength属性更改为:

    [StringLengthLocalizedAttribute(10)]

错误消息更改为" 字段用户名必须是最大长度为10的字符串. "因此,在这种情况下,至少有2个默认错误消息要覆盖,@ kim-tranjan给出的解决方案失败.

我对此的部分解决方案是实现我自己的StringLength属性,如下所示:

public class StringLengthLocalizedAttribute : StringLengthAttribute
{
    public StringLengthLocalizedAttribute(int maximumLength) : base(maximumLength)
    {
        ErrorMessageResourceType = typeof(CustomValidationResource);
    }

    public override string FormatErrorMessage(string name)
    {
        ErrorMessageResourceName = MinimumLength > 0 ? "StringLengthAttributeMinMax" : "StringLengthAttributeMax";
        return base.FormatErrorMessage(name);
    }
}

我有一个带有验证消息的本地化资源"CustomValidationResource",并将其设置为ErrorMessageResourceType.然后,重写FormatErrorMessage函数,我根据可选参数决定应该应用哪个消息字符串.

所以,这里的问题是:是否有人知道我们在哪里可以找到DataAnnotation属性使用的资源键的完整列表,然后在不测试每一个的情况下查看每个资源键中有多少不同的错误消息？

或者甚至更好,我们可以使用原始的RESX文件来查看字符串模板并使用相同的资源键对它们进行本地化吗？这样,只更改ErrorMessageResourceType应该适用于所有DataAnnotations Attibutes,我不需要猜测在我的本地化字符串中放置"{1}"或"{2}"的位置.

谢谢,塞尔吉

Answer 1

如果您仍在寻找验证字符串的概述,可以在下面找到System.ComponentModel.DataAnnotations.Resources.DataAnnotationsResources类中的资源,如下所述:

[ArgumentIsNullOrWhitespace, The argument '{0}' cannot be null, empty or contain only white space.]
[AssociatedMetadataTypeTypeDescriptor_MetadataTypeContainsUnknownProperties, The associated metadata type for type '{0}' contains the following unknown properties or fields: {1}. Please make sure that the names of these members match the names of the properties on the main type.]
[AttributeStore_Type_Must_Be_Public, The type '{0}' must be public.]
[AttributeStore_Unknown_Method, The type '{0}' does not contain a public method named '{1}'.]
[AttributeStore_Unknown_Property, The type '{0}' does not contain a public property named '{1}'.]
[Common_NullOrEmpty, Value cannot be null or empty.]
[Common_PropertyNotFound, The property {0}.{1} could not be found.]
[CompareAttribute_MustMatch, '{0}' and '{1}' do not match.]
[CompareAttribute_UnknownProperty, Could not find a property named {0}.]
[CreditCardAttribute_Invalid, The {0} field is not a valid credit card number.]
[CustomValidationAttribute_Method_Must_Return_ValidationResult, The CustomValidationAttribute method '{0}' in type '{1}' must return System.ComponentModel.DataAnnotations.ValidationResult.  Use System.ComponentModel.DataAnnotations.ValidationResult.Success to represent success.]
[CustomValidationAttribute_Method_Not_Found, The CustomValidationAttribute method '{0}' does not exist in type '{1}' or is not public and static.]
[CustomValidationAttribute_Method_Required, The CustomValidationAttribute.Method was not specified.]
[CustomValidationAttribute_Method_Signature, The CustomValidationAttribute method '{0}' in type '{1}' must match the expected signature: public static ValidationResult {0}(object value, ValidationContext context).  The value can be strongly typed.  The ValidationContext parameter is optional.]
[CustomValidationAttribute_Type_Conversion_Failed, Could not convert the value of type '{0}' to '{1}' as expected by method {2}.{3}.]
[CustomValidationAttribute_Type_Must_Be_Public, The custom validation type '{0}' must be public.]
[CustomValidationAttribute_ValidationError, {0} is not valid.]
[CustomValidationAttribute_ValidatorType_Required, The CustomValidationAttribute.ValidatorType was not specified.]
[DataTypeAttribute_EmptyDataTypeString, The custom DataType string cannot be null or empty.]
[DisplayAttribute_PropertyNotSet, The {0} property has not been set.  Use the {1} method to get the value.]
[EmailAddressAttribute_Invalid, The {0} field is not a valid e-mail address.]
[EnumDataTypeAttribute_TypeCannotBeNull, The type provided for EnumDataTypeAttribute cannot be null.]
[EnumDataTypeAttribute_TypeNeedsToBeAnEnum, The type '{0}' needs to represent an enumeration type.]
[FileExtensionsAttribute_Invalid, The {0} field only accepts files with the following extensions: {1}]
[LocalizableString_LocalizationFailed, Cannot retrieve property '{0}' because localization failed.  Type '{1}' is not public or does not contain a public static string property with the name '{2}'.]
[MaxLengthAttribute_InvalidMaxLength, MaxLengthAttribute must have a Length value that is greater than zero. Use MaxLength() without parameters to indicate that the string or array can have the maximum allowable length.]
[MaxLengthAttribute_ValidationError, The field {0} must be a string or array type with a maximum length of '{1}'.]
[MetadataTypeAttribute_TypeCannotBeNull, MetadataClassType cannot be null.]
[MinLengthAttribute_InvalidMinLength, MinLengthAttribute must have a Length value that is zero or greater.]
[MinLengthAttribute_ValidationError, The field {0} must be a string or array type with a minimum length of '{1}'.]
[PhoneAttribute_Invalid, The {0} field is not a valid phone number.]
[RangeAttribute_ArbitraryTypeNotIComparable, The type {0} must implement {1}.]
[RangeAttribute_MinGreaterThanMax, The maximum value '{0}' must be greater than or equal to the minimum value '{1}'.]
[RangeAttribute_Must_Set_Min_And_Max, The minimum and maximum values must be set.]
[RangeAttribute_Must_Set_Operand_Type, The OperandType must be set when strings are used for minimum and maximum values.]
[RangeAttribute_ValidationError, The field {0} must be between {1} and {2}.]
[RegexAttribute_ValidationError, The field {0} must match the regular expression '{1}'.]
[RegularExpressionAttribute_Empty_Pattern, The pattern must be set to a valid regular expression.]
[RequiredAttribute_ValidationError, The {0} field is required.]
[StringLengthAttribute_InvalidMaxLength, The maximum length must be a nonnegative integer.]
[StringLengthAttribute_ValidationError, The field {0} must be a string with a maximum length of {1}.]
[StringLengthAttribute_ValidationErrorIncludingMinimum, The field {0} must be a string with a minimum length of {2} and a maximum length of {1}.]
[UIHintImplementation_ControlParameterKeyIsNotAString, The key parameter at position {0} with value '{1}' is not a string. Every key control parameter must be a string.]
[UIHintImplementation_ControlParameterKeyIsNull, The key parameter at position {0} is null. Every key control parameter must be a string.]
[UIHintImplementation_ControlParameterKeyOccursMoreThanOnce, The key parameter at position {0} with value '{1}' occurs more than once.]
[UIHintImplementation_NeedEvenNumberOfControlParameters, The number of control parameters must be even.]
[UrlAttribute_Invalid, The {0} field is not a valid fully-qualified http, https, or ftp URL.]
[ValidationAttribute_Cannot_Set_ErrorMessage_And_Resource, Either ErrorMessageString or ErrorMessageResourceName must be set, but not both.]
[ValidationAttribute_IsValid_NotImplemented, IsValid(object value) has not been implemented by this class.  The preferred entry point is GetValidationResult() and classes should override IsValid(object value, ValidationContext context).]
[ValidationAttribute_NeedBothResourceTypeAndResourceName, Both ErrorMessageResourceType and ErrorMessageResourceName need to be set on this attribute.]
[ValidationAttribute_ResourcePropertyNotStringType, The property '{0}' on resource type '{1}' is not a string type.]
[ValidationAttribute_ResourceTypeDoesNotHaveProperty, The resource type '{0}' does not have an accessible static property named '{1}'.]
[ValidationAttribute_ValidationError, The field {0} is invalid.]
[ValidationContext_Must_Be_Method, The ValidationContext for the type '{0}', member name '{1}' must provide the MethodInfo.]
[ValidationContextServiceContainer_ItemAlreadyExists, A service of type '{0}' already exists in the container.]
[Validator_InstanceMustMatchValidationContextInstance, The instance provided must match the ObjectInstance on the ValidationContext supplied.]
[Validator_Property_Value_Wrong_Type, The value for property '{0}' must be of type '{1}'.]

(MVC 4,.NET 4.0)

Answer 2

如果System.ComponentModel.DataAnnotations.dll使用像Reflector这样的工具打开它,则可以打开资源System.ComponentModel.DataAnnotations.Resources.DataAnnotationsResources.resources并查看.

您还可以查看System.ComponentModel.DataAnnotations.Resources.DataAnnotationsResources提供对资源字符串的访问权的类.