数组比较和列表排序c#
本文关键字:排序 列表 比较 数组 | 更新日期: 2023-09-27 18:19:06
我有列"主题"的数据表,在数据表"ABC/Vesse/11371503/C报告"中第1行[主题]列在数据表"Value/BEY/11371503/A报告"中第2行[主题]列我需要根据/比较主题列内的值,如果之前的值相同,我应该在下一个斜杠和排序之前查找下一个值。
根据建议,我基于/
strSubSplit进行拆分。请帮忙比较后如何排序和添加到列表中非常感谢。
if (ds.Tables[0].Rows.Count > 0)
{
foreach (DataRow row in ds.Tables[0].Rows)
{
string strSubject = row["Subject"].ToString();
string strEmailFrom = row["EmailFrom"].ToString();
string strEmailTo = row["EmailTo"].ToString();
string strEmailCC = row["EmailCc"].ToString();
string strEmailContent = row["EmailContent"].ToString();
// Do proper error handling here
DateTime strCreatedOn = DateTime.Parse(row["CreatedOn"].ToString());
string[] strSubSplit= row["Subject"].ToString().Split(new[] {'/'},StringSplitOptions.RemoveEmptyEntries);
mailInfoList.Add(new Tuple<string, string, string, string, string, DateTime>(strSubject, strEmailFrom, strEmailTo, strEmailCC, strEmailContent, strCreatedOn));
var newList = mailInfoList.OrderBy(x => x.Item1).ThenBy(x => x.Item6).ToList();
}
}
试试这个:
// assuming you'll already have the subjects of the emails
var subjects = new List<string>
{
"ABC / Vesse / 11371503 /C report",
"Value/BEY/11371503/A report"
};
var listOfItems = new List<Tuple<string, string, int, string>>();
subjects.ForEach(s =>
{
var splits = s.Split(new[] {'/'}, StringSplitOptions.RemoveEmptyEntries).Select(x => x.Trim()).ToArray();
// Do proper error checking before the int.Parse and make sure every array has 4 elements
listOfItems.Add(
new Tuple<string, string, int, string>(splits[0],
splits[1],
int.Parse(splits[2]),
splits[3]));
});
var newList = listOfItems
.OrderBy(x => x.Item3) // the number
.ThenBy(x => x.Item4) // {x} report
.ToList();
第一行包含ABC / Vesse / 11371503 /C report
和Second包含Value /BEY /11371503 /A report
,
string strSubject = string.Join("/",row["Subject"]
.ToString()
.Split(new[] { '/' },
StringSplitOptions.RemoveEmptyEntries
).ToList().OrderBy(x => x));
现在更新的值包含
第一行11371503 /ABC /C report/Vesse
第2行11371503 /A report/BEY /Value
和根据主题再次排序的newList变量
var newList = mailInfoList.OrderBy(x => x.Item1).ThenBy(x => x.Item6).ToList();
最终结果变成
第1行11371503 /A report/BEY /Value
第二行11371503 /ABC /C report/Vesse