小编Jas*_*hel的帖子

public class Note
{
    public string account;
    public DateTime noteDate;
    public string noteText;
}

List<Note> List1;

使用LINQ我正在寻找一种方法来组合noteText何处account和noteDate相同.例如,如果传入列表有三个对象:

List1[0] = "1234", 2017-10-03, "This is a"
List1[1] = "1234", 2017-10-03, " sample note."
List1[2] = "4321", 2017-10-03, "This is another note."

我希望新列表有两个对象:

List2[0] = "1234", 2017-10-03, "This is a sample note."
List2[1] = "4321", 2017-10-03, "This is another note."