查询后遍历的问题

[sxlfybb]

 List<string> listAccount = LoadInfo.LoadAccountInfo(dlgFile.FileName);
                var accounts = from account in listAccount
                               orderby account
                               select listAccount;
                foreach (string account in accounts)
                {
                    lbAccounts.Items.Add(account);
                }

Error 1 Cannot convert type 'System.Collections.Generic.List<string>' to 'string'

为什么不能遍历？

[sxlfybb]

按理说，accounts 也是一个list<string>类型，遍历list<string>类型这样写是没问题的呀，

[Love_My]

你的accounts要.ToList()

[maddemon]

var accounts = from account in listAccount
orderby account
select account;

[sxlfybb]

的确如4楼所说，谢谢

[sxlfybb]

但我有一些搞不清楚了，4楼返回的是什么类型？

而我写的返回的又是什么数据类型？

var accounts = from account in listAccount
orderby account
select account;

var accounts = from account in listAccount
orderby account
select listAccount;

这两者返回的数据类型肯定不一样。它们各返回的是什么数据类型？大家说说，共同学习下。分数我再加

[sxlfybb]

关于这个问题，我已经想清楚了。感谢大家。

当然，for share

  private void btForeach_Click(object sender, EventArgs e)
        {
            List<string> listAccount = CreateList();

            //var accounts = from account in listAccount orderby account select listAccount;

            //foreach (List<string> account in accounts)
            //{
            //    foreach (string str in account)
            //    {
            //        lvForeach.Items.Add(str.ToString());
            //    }
            //}

            var accounts = from account in listAccount orderby account select account;

            foreach (string account in accounts)
            {
                lvForeach.Items.Add(account.ToString());
            }
        }
        List<string> CreateList()
        {
            List<string> list = new List<string>();
            list.Add("account4");
            list.Add("account1");
            list.Add("account2");
            list.Add("account3");
            return list;
        }

[sky911911]

我也遇见过类似的问题 换一个角度来解决吧！