ServiceStack.Ormlit　事务

应该使用这个方法开启事务

public static IDbTransaction OpenTransaction(this IDbConnection dbConn)
{
　　　return new OrmLiteTransaction(dbConn, dbConn.BeginTransaction());
}

或者IDbConnection对象用OrmLiteConnectionFactory来创建

var factory = new OrmLiteConnectionFactory(ConnectionString, SqlServerDialect.Provider);