我在我的web.config上有这个.
<add name="AppDataContext" connectionString="Data Source=(LocalDb)\v11.0;AttachDbFilename=|DataDirectory|\AppDatabase.mdf;Initial Catalog=AppDatabase;Integrated Security=True" providerName="System.Data.sqlClient" />
Global.asax APplication Start
Database.Setinitializer<AppDataContext>(new AppDataContextinitializer());
AppDataContextinitializer.cs
public class AppDataContextinitializer : System.Data.Entity.CreateDatabaseIfNotExists<AppDataContext> { protected override void Seed(AppDataContext context) { #region Seed Modules context.ModuleList.Add(new Module() { Id = 1,ModuleName = "Contabilidad",FontAwesomeClass = "ambulance" }); context.ModuleList.Add(new Module() { Id = 2,ModuleName = "Recursos Humanos",FontAwesomeClass = "heartbeat" }); context.ModuleList.Add(new Module() { Id = 3,ModuleName = "Inventario",FontAwesomeClass = "medkit" }); #endregion base.Seed(context); } }
AppDataContext.cs
public class AppDataContext : DbContext { public AppDataContext(): base("AppDataContext") { } public DbSet<Module> ModuleList { get; set; } protected override void OnModelCreating(DbModelBuilder modelBuilder) { modelBuilder.Conventions.Remove<PluralizingTableNameConvention>(); } }
和module.cs
public class Module { [Key] public int Id { get; set; } public string ModuleName { get; set; } public string FontAwesomeClass { get; set; } }
但是我的数据库没有创建,我错过了什么?
更新1,我在global.asax上添加了这个
AppInitializacionHandler.Initialize();
我创建了这个类:
public class AppInitializacionHandler { public static void Initialize() { Database.Setinitializer(new AppDataContextinitializer()); //if u want to use your initializer using (var db = new AppDataContext()) { db.Database.Initialize(true); } } }
和初始化种子一样
解决方法
如果您不访问数据库,则永远不会调用初始化程序.如果要在应用程序启动时调用Global.asax中的Initialize方法,请创建数据库:
context.Database.Initialize(true)();
更新1:
问题是您在不同的数据库实例中设置初始化程序,请尝试以下操作:
using (var db = new AppDataContext()) { db.Database.Setinitializer(new AppDataContextinitializer()); db.Database.Initialize(true); }
或者在DbContext构造函数上设置Initializer:
public AppDataContext() { Database.Setinitializer(new AppDataContextinitializer()); }
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