WinUI 3 C# - Microsoft.ui.xaml.dll 故障？

Question

更新我的问题，顺便说一句，无论谁投了反对票，都可以提供建设性的评论..

使用最新的 WinUI Template Studio 和 .net 8.0。

应用程序设置.json

 "AllowedHosts": "*",

 "ConnectionStrings": {
  "DefaultConnection": "Filename=easy.db"
}
 }

public class DataDBContext : DbContext
{
    public DataDBContext(DbContextOptions<DataDBContext> options) : base(options) { }

    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
    {
        if (!optionsBuilder.IsConfigured)
        {
            IConfigurationRoot configuration = new ConfigurationBuilder()
                .SetBasePath(Directory.GetCurrentDirectory())
                .AddJsonFile("appsettings.json")
                .Build();

            var connectionString = configuration.GetConnectionString("DefaultConnection");
            optionsBuilder.UseSqlite(connectionString);
        }

        base.OnConfiguring(optionsBuilder);
    }

    protected override void OnModelCreating(ModelBuilder modelBuilder)
    {
        modelBuilder.Entity<Content>().HasKey(e => e.Id);
    }

    public DbSet<Content> Contents
    {
        get; set;
    }
}

public class DataDBContextFactory : IDesignTimeDbContextFactory<DataDBContext>
{
    public DataDBContext CreateDbContext(string[] args)
    {
        var optionsBuilder = new DbContextOptionsBuilder<DataDBContext>();

        IConfigurationRoot configuration = new ConfigurationBuilder()
            .SetBasePath(Directory.GetCurrentDirectory())
            .AddJsonFile("appsettings.json")
            .Build();

        var connectionString = configuration.GetConnectionString("DefaultConnection");
        optionsBuilder.UseSqlite(connectionString);

        return new DataDBContext(optionsBuilder.Options);
    }
}

然后在App.xaml.cs中

        Host = Microsoft.Extensions.Hosting.Host.
CreateDefaultBuilder().
UseContentRoot(AppContext.BaseDirectory).
ConfigureServices((context, services) =>
{
    var connectionString = context.Configuration.GetConnectionString("DefaultConnection");
    // Default Activation Handler
    services.AddTransient<ActivationHandler<LaunchActivatedEventArgs>, DefaultActivationHandler>();

    // Other Activation Handlers
    services.AddDbContext<DataDBContext>(options => options.UseSqlite(connectionString));
    services.AddTransient<DBService>();

            ....            
        }).
        Build();

    }
    

它可以在 Visual Studio 中运行，但一旦部署并从开始菜单打开，就会崩溃，错误模块路径：C:\Program Files\WindowsApps\Microsoft.WindowsAppRuntime.1.4_4000.1049.117.0_x64__8wekyb3d8bbwe\Microsoft.ui.xaml.dll

有人可以让我走上正轨吗？

Answer 1

我认为你应该这样使用：

protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
    {
        var dbFile = @$"{AppContext.BaseDirectory}\Assets\DataBase\mydb.db";
        optionsBuilder.UseSqlite($"Data Source={dbFile}");
    }

我认为你应该使用数据源而不是文件名