c# - 在 ServiceStack.Data.IDbConnectionFactory 中没有调用 open 的扩展方法

Question

我想使用 servicestack.ormlite 连接到数据库。但即使在添加了 Nuget 的引用后，我也会收到此错误。

我是用这个命令安装的

Install-Package ServiceStack.OrmLite.SqlServer

这是抛出的错误

'ServiceStack.Data.IDbConnectionFactory' does not contain a definition for 'Open' and no extension method 'Open' accepting a first argument of type 'ServiceStack.Data.IDbConnectionFactory' could be found (are you missing a using directive or an assembly reference?)

var dbFactory = new OrmLiteConnectionFactory(connectionString, SqliteDialect.Provider);
//I get error when I call open method
using (IDbConnection db = dbFactory.Open())
{

}

Answer 1

IDbConnectionFactory.Open() 扩展方法在 OrmLiteConnectionFactoryExtensions 中定义这是在 ServiceStack.OrmLite 命名空间下定义的，因此您需要导入:

using ServiceStack.OrmLite;