获得非重复列表后，在查询中使用结果

本文介绍了获得非重复列表后，在查询中使用结果的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

最初，我获得了帮助，从一个较大的列表(该列表包含多个节点)中获得了一个独特的列表.我认为那行得通.

I originally got help with getting a distinct list from a larger list with multiple nodes to group. I think that worked.

我现在需要有关如何使用该列表的帮助.

I now need help on how to use that list.

这是我的代码:

var LOE = results.Body .getEntitiesResponse .getEntities .listOfEntities .Select(x=>new string[]{x.entityIdentification.DUNS,x.entityIdentification.DUNSPlus4}) .Distinct(); foreach (var d in LOE) { using (OleDbConnection conn = new OleDbConnection(cm.ConnectionString)) { using (OleDbCommand cmd = new OleDbCommand()) { cmd.CommandText = "sam.DeleteRecordsToBeUpdated"; cmd.CommandType = CommandType.StoredProcedure; cmd.Parameters.AddWithValue("@a", d.DUNS); //This is my problem area cmd.Parameters.AddWithValue("@b", d.DUNSPlus4); //This is my problem area cmd.Connection = conn; conn.Open(); cmd.ExecuteNonQuery(); } } }

有人可以帮助我如何使用第一行中创建的新对象吗?

Can someone help me with how to use the new object created in the first line?

也许我没有正确设置第一行?我似乎无法像尝试那样使用该对象.

Maybe I am not setting the first line properly? I can't seem to use the object as I am trying to.

推荐答案

您的问题出在第一条语句上

Your problem is with the first statement

var LOE = results.Body.getEntitiesResponse.getEntities.listOfEntities .Select(x=>new string[]{x.entityIdentification.DUNS,x.entityIdentification.DUNSPlus4}) .Distinct();

您应该像下面这样

var LOE = results.Body.getEntitiesResponse.getEntities.listOfEntities .Select(x => new { x.entityIdentification.DUNS, x.entityIdentification.DUNSPlus4 }).Distinct();

在您的情况下，您正在选择一个数组，而不是一个匿名类

In your case, you are selecting an array, instead of an anonymous class