EntityFramework.SqlServer.dll中发生类型为'System.Data.Entity.Core.EntityException'的异常，但未在用户代码中处理 [英] An exception of type 'System.Data.Entity.Core.EntityException' occurred in EntityFramework.SqlServer.dll but was not handled in user code
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问题描述
我是ASP.NET MVC的新手，我面临着这个异常，连接字符串看起来很完美，但是仍然会引发异常，请感谢有人告诉我为什么会发生这种情况.
I am new to ASP.NET MVC, I am facing this exception, the connection string looks perfect but still, the exception is raised, appreciate if anyone give me why is happening.
谢谢你们
模型1
namespace MVCTwice.Models
{
public class StudentContext : DbContext
{
public DbSet<Student> studs { get; set; }
}
}
模型2
namespace MVCTwice.Models
{
[Table("tblStudents")]
public class Student
{
public int id { get; set; }
public string name { get; set; }
public string gender { get; set; }
public string totalMarks { get; set; }
}
}
操作方法
public ActionResult Index()
{
StudentContext studentContext = new StudentContext();
//Student emp = studentContext.studs.Select(emp=>emp.)
List<Student> emp=studentContext.studs.ToList();
return View(emp);
}
查看
@model MVCTwice.Models.Student
@{
Layout = null;
}
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width" />
<title>Index</title>
</head>
<body>
<div>
@Model.gender
@Model.name
@Model.id
@Model.totalMarks
</div>
</body>
</html>
例外
ConnectionString
<connectionStrings >
<add
name="myConnectionString"
connectionString="Provider=SQLOLEDB.1;Persist Security Info=False;User ID=sa;Initial Catalog=LoginInfo;Data Source=.\SQLEXPRESS"
providerName="System.Data.SqlClient"/>
</connectionStrings>
推荐答案
<connectionStrings>
<add name ="StudentContext "
connectionString ="server=.; database=here your database name; integrated security=SSPI"
providerName ="system.data.SqlClient"/>
</connectionStrings>
这是您的代码，但是更改您的数据库名称，然后将其添加到web.config文件中.
Here is your code but change your database name and then add it into the web.config file.
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