在 UWP 应用程序上将 Entity Framework Core 与 SQL Server 一起使用时出错 [英] Error using Entity Framework Core with SQL Server on UWP app
问题描述
我有一个包含 Entity FrameWork Core 2.0.2 和 SQL Server、Sqlite 和 PostgreSql 提供程序的数据项目(.net 标准 2.0).
I have a data project (.net standard 2.0) with Entity FrameWork Core 2.0.2 and SQL Server, Sqlite and PostgreSql providers.
我有更多三个项目要在 Windows 窗体、WPF 和 UWP 中进行演示.
I have more three projects for presentation in Windows Forms, WPF and UWP.
当我运行 Windows 窗体和 WPF 时,Entity Framework Core 适用于所有提供程序,但是当我尝试在 UWP 上运行 SQL Server 提供程序时,它抛出这个
When I run the Windows Forms and WPF, Entity Framework Core works fine for all providers, but when I try to run the SQL Server provider on UWP, it throw this
方法EnsureCreatedAsync
中发生错误:
public async Task InitDataBaseAsync(DataBaseConfig config)
{
using (var db = GetDataContext(config))
{
// Postgresql and Sqlite do not throw exception in UWP.
await db.Database.EnsureCreatedAsync();
}
}
我查了三个平台的连接字符串,连接都是一样的.
I checked the three platforms connection string, the connection are the same.
有人遇到过这个问题吗?
Has anyone experienced this problem?
推荐答案
我将连接字符串更改为使用 TCP/IP
I changed the connection string to use TCP/IP
之前
Data Source=xpt/SqlServerExpress;Initial Catalog=gestao_eficaz;User ID=sa;Password=somePassword
之后
Data Source=127.0.0.1,1433;Initial Catalog=gestao_eficaz;User ID=sa;Password=somePassword
同样需要在sql server中开启TCP/IP连接
It is also necessary to enable the TCP / IP connection in the sql server
https://stackoverflow.com/questions/2388042/connect-to-sql-server-2008-with-tcp-ip
现在可以使用了!!!
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