在C#中的类构造函数中调用Async方法 [英] Calling Async method in class constructor in C#

问题描述

目前，我正在使用c#开发通用应用程序.

Currently I'm developing an universal app using c#.

在应用程序中，我将sqlite用作数据库，并且您现在可能拥有异步方法.

In app I used sqlite as database and as you may now It has async methods.

我有一个带有一些null属性的类，我将使用从db中获取的数据来填充它们，但是应该完全在类构造函数中完成.

I have a class with some null property that I'll fill them using data I fetch from db, but It should be done exactly in class constructor.

问题是不允许使用异步方法，因此我尝试创建一个新的异步方法，并使用sqlite方法并在其中填充属性以在构造函数中同步调用它，但可以预期它不能很好地工作.

The problem is that using async methods is not allowed, So I tried creating a new async method and using sqlite methods and filling properties in it to call it synchronously in constructor, but as may expecting It doesn't work well.

如何在类构造函数中使用异步方法来从db获取数据并在类构造函数方法中填充类属性?

How can I use async method in class constructor in a way to get data from db and fill class properties right in class constructor method?

更新:请注意，我并不是在问这是否可以完成，我想使用在类构建时来自db的数据来初始化我的类vars

Update: Notice that I'm not asking about could it be done or no, I want to init my class vars with data coming from db when the class constructed

推荐答案

不要这样做

构造函数应该简单地是:构造函数.将复杂的初始化移动到一个初始化方法.

Don't do that

Constructors should be simply that: constructors. Move complex initializations to an initialize method.

构造函数正常失败的能力有限，因此不要对它们进行任何复杂，长时间运行或脆弱的操作.

Constructors have a limited ability to fail gracefully, so don't do anything complicated, long-running, or fragile in them.

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