SpectrumContextはweb.configで定義された接続です。なぜこれが読み込まれていないのか分かりません。エンティティフレームワークで何が起きているのか分かりませんMVCセットアップ
エラー以下投げている私の文字列変数 "結果":
The type 'System.Web.Routing.RouteCollection+IgnoreRouteInternal' and the type 'System.Web.Mvc.RouteCollectionExtensions+IgnoreRouteInternal' both have the same simple name of 'IgnoreRouteInternal' and so cannot be used in the same model. All types in a given model must have unique simple names. Use 'NotMappedAttribute' or call Ignore in the Code First fluent API to explicitly exclude a property or type from the model.
HomeController.cs
using System;
using System.Collections.Generic;
using System.Data.Common;
using System.Data.Entity;
using System.Data.Entity.Core.EntityClient;
using System.Data.SqlClient;
using System.Linq;
using System.Web.Mvc;
using WebApplication1.Controllers;
using WebApplication1.DataAccessLayer;
namespace WebApplication1.Controllers
{
public class HomeController : Controller
{
public ActionResult Index()
{
BaseContext db1 = new BaseContext("SpectrumContext");
string sql = "select description from dbo.workcategory where workcategoryid = 3";
string results = db1.Database.SqlQuery<string>(sql).First();
return View(results);
}
public ActionResult About()
{
ViewBag.Message = "Your application description page.";
return View();
}
public ActionResult Contact()
{
ViewBag.Message = "Your contact page.";
return View();
}
}
}
BaseContext.cs
using System;
using System.Collections.Generic;
using System.Data.Common;
using System.Data.Entity;
using System.Data.Entity.Core.EntityClient;
using System.Data.SqlClient;
using System.Linq;
using System.Web;
`test`using WebApplication1.Controllers;
namespace WebApplication1.DataAccessLayer
{
public class BaseContext : DbContext
{
protected string connectionName;
public DbSet<HomeController> description { get; set; }
/**
* Created the connection to the server using the giving connection string name
*
* @param connName
*/
public BaseContext(string connName = "SpectrumContext")
: base(connName)
{
connectionName = connName;
}
/**
* Changes the default database
*
* @param databaseName
*/
public BaseContext setDatabase(string databaseName)
{
var connectionString = System.Configuration.ConfigurationManager.ConnectionStrings[connectionName].ConnectionString;
SqlConnectionStringBuilder builder = new SqlConnectionStringBuilder(connectionString);
//change the database before creating the new connection
builder.InitialCatalog = databaseName;
string sqlConnectionString = builder.ConnectionString;
return new BaseContext(sqlConnectionString);
}
}
}
Index.cshtml
@{
ViewBag.Title = "Home Page";
}
<div class="jumbotron">
<h1>ASP.NET</h1>
</div>
<div>
</div>
何を(https://stackoverflow.com/questions/30553883/system-web-routing -routecollection-and-system-web-mvc-routecollectionextensions)は役に立ちますか? – maccettura
例外を投げているのはどこですか? – mxmissile
なぜあなたのデータベースにHomeControllerインスタンスを保持しようとしていますか?それは珍しいことです。 –