c# - App.xaml 找不到命名空间 IocContainter MVVM

Question

我正在制作一个采用 MVVM 模式的 Windows 10 通用应用程序。我将此代码放入 App.xaml 文件中:

<Application
    x:Class="WishLister.App"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:WishLister"
    xmlns:services="using:WishLister.Services"
    RequestedTheme="Light">

    <Application.Resources>
        
        <ResourceDictionary>        
            <services:IocContainer x:Key="ioc" /> <!--> error happens here -->

            <ResourceDictionary.MergedDictionaries>
                <ResourceDictionary Source="Templates/Rescources.xaml" x:Name="recources"/>
            </ResourceDictionary.MergedDictionaries>
        </ResourceDictionary>
    </Application.Resources>
    
</Application>

但它在标记行上给了我这个错误:

The name IocContainer does not exist in the namespace using:WishLister.Services.

我还尝试在斜体代码的 stad 中使用 clr-namespace:WishLister.Services 但出现以下两个错误:

The name IocContainer does not exist in the namespace clr-namespace:WishLister.Services.

Unknown type IocContainer in XML namespace clr-namespace:WishLister.Services;assembly=WishLister, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null

但是我创建了一个类WishLister.Services.IocContainer。这是代码:

using GalaSoft.MvvmLight.Ioc;
using WishLister.ViewModels;

namespace WishLister.Services
{
    public class IocContainer
    {
        public IocContainer Ioc
        {
            get
            {
                return App.Current.Resources["ioc"] as IocContainer;
            }
        }

        public MainPageViewModel MainPageViewModel
        {
            get
            {
                return SimpleIoc.Default.GetInstance<MainPageViewModel>();
            }
        }

        public IocContainer()
        {
            SimpleIoc.Default.Register<MainPageViewModel>(false);
        }
    }
}

这段代码有什么问题？

Answer 1

我是通过@Will 的评论找到的。他或她说:

1. Remove <services:IocContainer x:Key="ioc" /> and anything that references the services xmlns.
2. Build your solution.
3. Fix anything preventing this.
4. Then clean, restart Visual Studio, and rebuild.
5. If all is well, try to add your IocContainer into the xaml again.

Also, if IocContainer isn't defined in the same assembly as WishLister.App you'll need to do some other stuff.