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如何在SQL Server和Mars中使用ormlite?

作者:互联网

ServiceStack爱好者,您好!

我们是军团(我希望如此),所以请帮助一个兄弟:)

我试图用一个返回两个结果集的SQL Server 2008存储过程调用填充两个集合.
我的连接字符串中有“ MultipleActiveResultSets = True”,但仍然出现此错误:

‘r.NextResult()’ threw an exception of type
‘System.InvalidOperationException’

这是我的代码:

IList<ProjectMember> projectMembers = null;

IList<Project> projects = DbFactory.Run(dbCnx =>
{
     using (var dbCmd = dbCnx.CreateCommand())
     {
          dbCmd.CommandType = CommandType.StoredProcedure;
          dbCmd.CommandText = "mySchema.myStoredProc";
          dbCmd.Parameters.Add(new SqlParameter("@categoryId", categoryId));

          using (profiler.Step("ProjectService.myStoredProc"))
          {
              var r = dbCmd.ExecuteReader();
              projectMembers = r.ConvertToList<ProjectMember>();
              return r.NextResult() ? r.ConvertToList<Project>() : null;
          }
      }
 });

这可能吗?如果是这样,有人可以给我示范一个例子吗?

谢谢,

萨米尔

解决方法:

我找到了一种方法,但是我不得不用Dapper替换ormLite:

            using(var cnx = DbFactory.CreateConnection(Global.ConnectionString))
            {
                using (var multi = cnx.QueryMultiple("mySchema.myStoredProc", new { communityId, categoryId }, commandType: CommandType.StoredProcedure))
                {
                    var projectMembers = multi.Read<ProjectMember>().ToList();
                    var projects = multi.Read<Project>().ToList();
                    BindProjectMembers(projects, projectMembers);

                    return projects;
                }
            }

它运行完美,并且比MARS改善之前的速度快(从40毫秒到20毫秒).

标签:dapper,ormlite-servicestack,mars,c
来源: https://codeday.me/bug/20191201/2077478.html