Compare Time from DateTimePicker

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Hey guys,
i want to subtract to times; the actual time and a time in a dateTimePicker.
then i want to compare.

this is my actual code:

TimeSpan zero = new TimeSpan(0, 0, 0, 0, 0);

private void ti_timeLeft_Tick(object sender, EventArgs e)
{
            try
            {
                TimeSpan notification1 = new TimeSpan(0, 0, 2, 0, 0);
                TimeSpan notification2 = new TimeSpan(0, 0, 5, 0, 0);
                TimeSpan notification3 = new TimeSpan(0, 0, 10, 0, 0);
            }
            catch (Exception ex) { }

            DateTime now = DateTime.Now;
            List<TimeSpan> diffs = new List<TimeSpan>(7);

            #region "Monday"

            if (DateTime.Now.DayOfWeek.ToString() == "Monday")
            {
                if (dtp_monday1.Checked)
                {
                    if ((dtp_monday1.Value - now) > zero)
                        diffs.Add(dtp_monday1.Value - now);
                }
                if (dtp_monday2.Checked)
                {
                    if ((dtp_monday2.Value - now) > zero)
                        diffs.Add(dtp_monday2.Value - now);
                }
                if (dtp_monday3.Checked)
                {
                    if ((dtp_monday3.Value - now) > zero)
                        diffs.Add(dtp_monday3.Value - now);
                }
                if (dtp_monday4.Checked)
                {
                    if ((dtp_monday4.Value - now) > zero)
                        diffs.Add(dtp_monday4.Value - now);
                }
                if (dtp_monday5.Checked)
                {
                    if ((dtp_monday5.Value - now) > zero)
                        diffs.Add(dtp_monday5.Value - now);
                }
                if (dtp_monday6.Checked)
                {
                    if ((dtp_monday6.Value - now) > zero)
                        diffs.Add(dtp_monday6.Value - now);
                }
                if (dtp_monday7.Checked)
                {
                    if ((dtp_monday7.Value - now) > zero)
                        diffs.Add(dtp_monday7.Value - now);
                }

                if (diffs.Count == 0)
                {
                    //this.lab_time_left.Text = "";
                    return;
                }

                diffs.Sort();
                TimeSpan min = diffs[0];
                TimeSpan max = diffs[diffs.Count - 1];

                this.lab_time_left.Text = "Time left: " + min.Hours.ToString("00") + ":" + min.Minutes.ToString("00") + ":" + min.Seconds.ToString("00");
            }
}

how can i do this just with times:
if ((dtp_monday1.Value - now) > zero)

????

please help me

Posted 3-Oct-15 5:43am

Tobias Wälde

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2 solutions

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Wendelius · Accepted Answer · 2015-10-03T05:52:00

Solution 1

You can use for example DateTime.CompareTo Method[^] method to compare the dates. For example:

C#

...
if (dtp_monday1.Value.CompareTo(now) > 0) {
...

Posted 3-Oct-15 5:52am

Wendelius

Manas_Kumar · Accepted Answer · 2015-10-03T07:08:00

Solution 2

Try with below code:

C#

if((dtp_monday1.Value - now).TotalDays > 0)
{
	// Your logic
}

Here I used TotalDays to get total no of days difference between two dates. If you need for hours, minutes and seconds then use TotalHours, TotalMinutes, TotalSeconds.

Posted 3-Oct-15 7:08am

Manas_Kumar