在wpf中快速生成ViewModel属性? [英] Quickly generating ViewModel properties in wpf?

问题描述

阅读这篇文章后，在我的PersonViewModel 类:

public Jurisdiction CountryResidence
{
    get
    {
        return Model.CountryResidence;
    }
    set
    {
        if (Model.CountryResidence == value)
            return;
        else
        {
            Model.CountryResidence = value;
            base.OnPropertyChanged("CountryResidence");
        }
    }
}

public Jurisdiction CountryBirth
{
    get
    {
        return Model.CountryBirth;
    }
    set
    {
        if (Model.CountryBirth == value)
            return;
        else
        {
            Model.CountryBirth = value;
            base.OnPropertyChanged("CountryBirth");
        }
    }
}

我还有 CountryDomiciled、CountryPassport 和 LegalJurisdiction，它们都具有相同的格式.同样，我有很多 String 属性，所有这些属性都共享它们的格式.

I also have CountryDomiciled, CountryPassport and LegalJurisdiction, all with the same format. Similarly, I have lots of String properties, all of which share their format.

这会产生很多相同的代码！但是，我不知道如何使它更简洁.

This results in lots of samey code! However, I can't work out how to make this more concise.

是否有更好的方法来生成这些属性以保持它们的强类型?

Is there a better way to generate these properties that keeps them strongly typed?

推荐答案

更新: NotifyPropertyWeaver 已弃用并继续其作为 PropertyChanged.Fody.这是解决这个问题的绝对超酷的方法.这是一个仅编译时的解决方案.

UPDATE: NotifyPropertyWeaver is deprecated and continues its life as PropertyChanged.Fody. This is an absolute super cool way to solves this issue. It is a compile time only solution.

这里有一些可以为您节省代码和麻烦的东西:NotifyPropertyWeaver

Here's something that will save you code and trouble: NotifyPropertyWeaver

使用上述内容，您可以在没有任何 INotifyPropertyChanged 相关代码的情况下实现您的属性，并且构建步骤将为您处理接线.

Using the above, you can implement your properties without any INotifyPropertyChanged related code, and a build step will handle the wiring up for you.

这是一个简单的项目包含(也可通过 Nuget 获得)，它将自动将 OnPropertyChanged 回调注入到任何实现 INotifyPropertyChanged 的类的属性中.它在编译时完成(因此没有运行时命中)并且您的代码可以只具有自动实现的属性(除非在您的情况下，您使用单独的支持对象).

It's a simple project include (also available via Nuget) that will automatically inject the OnPropertyChanged callbacks into the properties of any class that implements INotifyPropertyChanged. It does it at compile time (so no runtime hit) and your code can just have auto-implemented properties (except in your case, where you're using a separate backing object).

它甚至包括值相等检查，因此它涵盖了完整的逻辑.我还没有使用手动实现的属性对其进行测试，但值得一试.

It even includes the value equality check, so it covers the full logic. I haven't tested it with manually-implemented properties, but worth checking out.

我现在已经测试过了，它工作正常:手动实现的属性将正常工作".

I have tested it now, and it works fine: a manually implemented property will "just work."

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