Ninject:激活字符串时出错

时间:2014-12-31 15:22:55

标签: c# ninject

我遵循如何设置SQLite的指南。在指南中,他使用代码隐藏:

public MainPage()
{
     InitializeComponent();

     // Setup database
     var path = Path.Combine(Path.Combine(ApplicationData.Current.LocalFolder.Path, "test.sqlite"));
     _connection = new SQLiteConnection(new SQLitePlatformWP8(), path); 
}

我试图做同样的事情,而是通过跟随MVVM。 我以为他的路可走:

public override void Load()
{
    var path = Path.Combine(Path.Combine(ApplicationData.Current.LocalFolder.Path, "test.sqlite"));

    Bind<ISQLitePlatform>().To<SQLitePlatformWP8>().WithConstructorArgument("test.sqlite", path);
}

Ninject回复:

No matching bindings are available, and the type is not self-bindable.

Activation path:

  4) Injection of dependency string into parameter databasePath of constructor

  3) Injection of dependency SQLiteConnection into parameter connection of constructor

  2) Injection of dependency ICarRepository into parameter carRepository of constructor

  1) Request for MainVModel

有关如何解决此问题的任何提示?

1 个答案:

答案 0 :(得分:3)

SQLiteConnection需要参数,而不是SQLitePlatformWP8

所以请将注册更改为:

Bind<SQLiteConnection>.ToSelf().WithConstructorArgument("databasePath", path);
Bind<ISQLitePlatform>().To<SQLitePlatformWP8>();

注意:您需要使用"databasePath"constructor中定义的正确的参数名SQLiteConnection