如何在c#中本地化属性描述？

Question

我正在研究一个课程，这个课程将被其他国家的一些人使用。我得定位每条信息警告e.c.这样他们就能理解我们的意思了。在很多情况下，我实现了我的目标。但是，像描述这样的属性属性是非常麻烦的。

这就是我现在所拥有的：

[Category("Editable Values"), Description("Sets the minimum select...")]
    public Ampere Simin
    {
        get
        {...}
        set
        {...}
    }

和

[Category("Editable Values"), Description(Localisation.Simin)] // "Localisation" here is the internal resource file that i wrote for messages, warnings, exceptions and -unfortunately- descriptions
        public Ampere Simin
        {
            get
            {...}
            set
            {...}
        }

这就是我想要做的。但是不可能以这种方式使用本地化。有什么建议我可以用来代替它吗？

Answer 1

子类：

[STAThread]
static void Main()
{   // just some example code to show it working in winforms, but
    // anything using System.ComponentModel should see the change
    Application.EnableVisualStyles();        
    Application.Run(new Form {Controls = {new PropertyGrid {Dock = DockStyle.Fill, SelectedObject = new Foo()}}});
}

class Foo
{   // assume the following literals are keys, for example to a RESX
    [LocalizedCategory("cat")]
    [LocalizedDescription("desc")]
    [LocalizedDisplayName("disp name")]
    public string Bar { get; set; }
}
[AttributeUsage(AttributeTargets.Assembly | AttributeTargets.Module | AttributeTargets.Class | AttributeTargets.Struct | AttributeTargets.Enum | AttributeTargets.Constructor | AttributeTargets.Method | AttributeTargets.Property | AttributeTargets.Field | AttributeTargets.Event | AttributeTargets.Interface | AttributeTargets.Parameter | AttributeTargets.Delegate | AttributeTargets.ReturnValue | AttributeTargets.GenericParameter)]
class LocalizedDescriptionAttribute : DescriptionAttribute
{
    static string Localize(string key)
    {
        // TODO: lookup from resx, perhaps with cache etc
        return "Something for " + key;
    }
    public LocalizedDescriptionAttribute(string key)
        : base(Localize(key))
    {
    }
}
[AttributeUsage(AttributeTargets.Class | AttributeTargets.Method | AttributeTargets.Property | AttributeTargets.Event)]
class LocalizedDisplayNameAttribute : DisplayNameAttribute
{
    static string Localize(string key)
    {
        // TODO: lookup from resx, perhaps with cache etc
        return "Something for " + key;
    }
    public LocalizedDisplayNameAttribute(string key)
        : base(Localize(key))
    {
    }
}
[AttributeUsage(AttributeTargets.Assembly | AttributeTargets.Module | AttributeTargets.Class | AttributeTargets.Struct | AttributeTargets.Enum | AttributeTargets.Constructor | AttributeTargets.Method | AttributeTargets.Property | AttributeTargets.Field | AttributeTargets.Event | AttributeTargets.Interface | AttributeTargets.Parameter | AttributeTargets.Delegate | AttributeTargets.ReturnValue | AttributeTargets.GenericParameter)]
class LocalizedCategoryAttribute : CategoryAttribute
{
    public LocalizedCategoryAttribute(string key) : base(key) { }
    protected override string  GetLocalizedString(string value)
    {
            // TODO: lookup from resx, perhaps with cache etc
        return "Something for " + value;
    }
}

Answer 2

我综合了Marc Gravell和dsmith的回答：

首先:创建一个名为LocalizedDescriptionAttribute的属性类

public class LocalizedDescriptionAttribute : DescriptionAttribute
{
    static string Localize(string key)
    {
        return YourResourceClassName.ResourceManager.GetString(key);
    }

    public LocalizedDescriptionAttribute(string key)
        : base(Localize(key))
    {
    }
}

将其用作属性(不需要“LocalizedDescription”一词)

public class Foo
{   
    // myString is a key that exists in your Resources file
    [LocalizedDescription("myString")]
    public string Bar { get; set; }
}

Answer 3

[Required(ErrorMessageResourceName = "LogOnModel_UserName_Required",     
      ErrorMessageResourceType = typeof(Resources.Global))]    
[Display(Name = "LogOnModel_UserName_Required",resourceType = typeof(Resources.Global))]  
public string UserName { get; set; }

请参阅：http://geekswithblogs.net/shaunxu/archive/2010/05/06/localization-in-asp.net-mvc-ndash-3-days-investigation-1-day.aspx