C＃DateTimePicker中的自定义时间值

Question

I have my datetimepicker value showing only date and this gets the current time on my system to fill up the missing time. I need to have it as d/MM/yyyy 12:00:00 AM and d/MM/yyyy 11:59:59 PM

Answer 1

There are 2 datetimepickers: Start and End

If you want to use those values and just compare the dates regardless of time, format your DateTimePicker to just show the date, then either:

1. Take the Date portion of the selected values and compare them to the Date portion of the input:

    if(myDate.Date >= dateStart.Date && myDate.Date <= dateEnd.Date) 

2. Add one day to the end date and use an exclusive comparison:

    if(myDate >= dateStart.Date && myDate < dateEnd.Date.AddDays(1)) 

If you don't care about the time then don't mess with it - don't try to set the time on the second date to 11:59:59 PM

Answer 2

If you pick day 9/2/2015 for start and 9/3/2015 for end

This will give you the start date of 9/2/2015 12:00 AM:

string start = dtp1.Value.Date.ToString();

This will give you the end date of 9/2/2015 11:59 PM:

string end = dtp2.Value.Date.AddSeconds(-1).ToString();

if you want 9/3/2015 11:59 PM you could do:

string end = dtp2.Value.Date.AddDays(1).AddSeconds(-1).ToString();