All items in list get the same value

Question

I'm trying to create a list and insert values in to it. But when I add a new item it changes all existing items in the list to the same value I add and I don't understand why.

Here is my code:

public List<Times> CreateListOfTimes()
{
    var listOfTimes = new List<Times>();
    var times = new Times();
    int startTime = 8;
    int endTime = startTime + 1;
    for (int i = 0; i < 8; i++)
    {
        times.StartTime = startTime;
        times.EndTime = endTime;
        listOfTimes.Add(times);
        startTime++;
        endTime++;
    }
    return listOfTimes;
}

The first time I add a value to times, times.StartTime = 8 and times.EndTime = 9. When I loop the second time I add 9 and 10 but i also change the already added 8 and 9 to 9 and 10. Why does it happen and how can I fix it?

Answer 1

Its because its the same Times object every time, you have to make a new one in the loop:

for (int i = 0; i < 8; i++)
{
    var times = new Times();
    times.StartTime = startTime;
    times.EndTime = endTime;
    listOfTimes.Add(times);
    startTime++;
    endTime++;
}