[英]Eager Loading in Entity Framework Core 2.2
Have Entity Framework Core 2.2 removed Eager Loading? 有实体框架的核心2.2取出预先加载? The include method won't appear in Visual Studio intellisense, and when I write it manually it gives an error: "it does not contain a definition for 'Include' and no accessible extensions..."
include方法不会出现在Visual Studio intellisense中,当我手动编写它时,它会给出一个错误:“它不包含'include'的定义,也没有可访问的扩展...”
Example 例
School school = _context.Students.Include...
My demo is made with a simple ASP Core 2.2. 我演示用一个简单的ASP核心2.2制作。 Web Application.
Web应用程序。 Not much have been changed.
没有多少已经改变。 The project use this packages:
该项目使用这个包:
<ItemGroup>
<PackageReference Include="Microsoft.AspNetCore.App" />
<PackageReference Include="Microsoft.AspNetCore.Razor.Design" Version="2.2.0" PrivateAssets="All" />
<PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite.Core" Version="2.2.0" />
</ItemGroup>
Have Entity Framework Core 2.2 removed Eager Loading?
有实体框架的核心2.2取出预先加载?
No, it still exists . 不,它仍然存在 。
The include method won't appear in Visual Studio intellisense, and when I write it manually it gives an error: "it does not contain a definition for 'Include' and no accessible extensions..."
include方法不会出现在Visual Studio intellisense中,当我手动编写它时,它会给出一个错误:“它不包含'include'的定义,也没有可访问的扩展...”
Looks like you are missing the following using
statement in your code : 看起来您在代码中缺少以下
using
语句:
using Microsoft.EntityFrameworkCore;
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