Question

我正在尝试使用LINQ to SQL来更新我的数据库，但是当我在更新它之后尝试刷新我的表时，出现了一个错误：

无法导入此数据库。它是不受支持的SQL Server版本或不受支持的数据库兼容性。

我很感激某人的帮助

我的代码中的一些随机代码段，不确定它们是否相关：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

-

    private void button3_Click(object sender, EventArgs e)
    {
        ProjectDBDataContext Context = new ProjectDBDataContext();
        var r =
                from b in Context.TeacherDetails
                where b.TeacherId <= 2
                select b;


           foreach (TeacherDetail b in r)            
              b.First_Name = "Jerry";

           Context.SubmitChanges();


    }

-

CREATE TABLE [dbo].[TeacherDetails] (
[TeacherId]     INT           IDENTITY (1, 1) NOT NULL,
[First Name]    NVARCHAR (50) NULL,
[Surname]       NVARCHAR (50) NULL,
[Email Address] NVARCHAR (50) NULL,
[Password]      NVARCHAR (50) NULL,
[Title]         NVARCHAR (50) NULL,
[Username]      NVARCHAR (50) NULL,
CONSTRAINT [PK_TeacherDetails] PRIMARY KEY CLUSTERED ([TeacherId] ASC)
);

这是连接字符串的意思吗？

<?xml version="1.0" encoding="utf-8" ?>

  <configuration>
    <configSections>
    </configSections>
    <connectionStrings>
        <add name="Project.Properties.Settings.ProjectDBConnectionString"
            connectionString="Data Source=   (LocalDB)\v11.0;AttachDbFilename=|DataDirectory|\ProjectDB.mdf;Integrated      Security=True"
            providerName="System.Data.SqlClient" />
  </connectionStrings>
    <startup> 
        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" />
    </startup>
</configuration>

此数据库无法导入错误

0 个答案: