我正在尝试在控制台应用程序中配置实体框架7。
但是,我注意到在DbContextOptionBuilder中未定义“ UseSqlServer”
这是代码
public class LetsBreakITContext : DbContext
{
public DbSet<Book> Books { get; set; }
public DbSet<Country> Countries { get; set; }
protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
{
optionsBuilder.UseSqlServer(@"Server=(localdb)\mssqllocaldb;Database=EFGetStarted.ConsoleApp.NewDb;Trusted_Connection=True;");
}
protected override void OnModelCreating(ModelBuilder modelBuilder)
{
//country
modelBuilder.Entity<Country>(c =>
{
c.HasKey(e => e.CountryId);
c.Property(e => e.CountryId).ValueGeneratedOnAdd();
c.Property(e => e.CountryId).IsRequired();
c.Property(e => e.Name).IsRequired();
});
//Book
modelBuilder.Entity<Book>(l =>
{
l.HasKey(e => e.BookId);
l.Property(e => e.BookId).ValueGeneratedOnAdd();
l.Property(e => e.CountryId).IsRequired();
l.Property(e => e.Name).IsRequired();
});
}
}
我使用Nuget添加了EF 7“ install-packageEntityframework.commands -pre”
我正在使用Microsoft EF 7文档中的示例代码
不知道我在这里缺少什么。
-艾伦-
最佳答案
您需要安装Sql Server提供程序:https://www.nuget.org/packages/EntityFramework.MicrosoftSqlServer/7.0.0-rc1-final
关于c# - DbContextOptionBuilder中未定义UseSqlServer,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/36951010/