数据注释本地化

Question

模型

[MetadataType(typeof(UserMetaData))]
public class User
{
    public int Id { get; set; }
    public string UserName { get; set; }
}

public class UserMetaData
{
    public int Id { get; set; }

    [Required(ErrorMessageResourceType = typeof(Resources.ModelValidation), ErrorMessageResourceName = "UserNameRequired")]
    [LocalizedDisplayNameAttribute("UserName", NameResourceType = typeof(Resources.ModelValidation))]
    public string UserName { get; set; }
}

视图

@using (Html.BeginForm())
{
    <div>
        @Html.LabelFor(x => x.UserName)
        @Html.TextBoxFor(x => x.UserName)
        @Html.ValidationMessageFor(x => x.UserName)
    </div>
    <div>
        <input type="submit" value="Gönder" />
    </div>
}

LocalizedDisplayNameAttribute

public class LocalizedDisplayNameAttribute : DisplayNameAttribute
{
    private PropertyInfo _nameProperty;
    private Type _resourceType;

    public LocalizedDisplayNameAttribute(string displayNameKey)
        : base(displayNameKey)
    { }

    public Type NameResourceType
    {
        get { return _resourceType; }
        set
        {
            _resourceType = value;
            //initialize nameProperty when type property is provided by setter  
            _nameProperty = _resourceType.GetProperty(base.DisplayName, BindingFlags.Static | BindingFlags.Public);
        }
    }
    public override string DisplayName
    {
        get
        {              
            //check if nameProperty is null and return original display name value  
            if (_nameProperty == null) { return base.DisplayName; }
            return (string)_nameProperty.GetValue(_nameProperty.DeclaringType, null);
        }
    }
}

资源文件

产量

RequiredAttribute本地化工作,但LocalizedDisplayNameAttribute不起作用.我找不到任何解决方案来解决这个问题.

有什么建议,遗失在哪里？

Answer 1

你好像用这个LocalizedDisplayNameAttribute属性重新发明轮子.此功能已内置到框架中,直接进入[Display]您可以直接使用的属性:

public class UserMetaData
{
    public int Id { get; set; }

    [Required(ErrorMessageResourceType = typeof(Resources.ModelValidation), ErrorMessageResourceName = nameof(Resources.ModelValidation.UserNameRequired)]
    [Display(ResourceType = typeof(Resources.ModelValidation), Name = nameof(Resources.ModelValidation.UserName))]
    public string UserName { get; set; }
}

至于为什么你的车轮改造不起作用,好吧,不能肯定地说.为什么要关心什么时候你可以摆脱它.