Ok so I want to constantly update the time on my datetimepicker and I'm doing so as follows:
private void timer1_Tick(object sender, EventArgs e)
{
dtpTime.Value = DateTime.Now;
}
The interval for timer1 is set to 1000 (milliseconds). The problem I am having is I also display the date on my datetimepicker and I do not want to change the date with the update, but by assigning DateTime.Now to dtpTime.Value, it updates the entire datetimepicker. I simply cannot find a way to only update the time.
Thanks for the help in advance.
So you need to compose the value from the date of picker and the time of now?
DateTime now = DateTime.Now;
dtpTime.Value = new DateTime(dtpTime.Value.Year, dtpTime.Value.Month, dtpTime.Value.Day, now.Hour, now.Minute, now.Second);
Set the CustomFormat property of the date picker to hh:mm:ss for time or dd/MM/yyyy hh:mm:ss for date and time
and select Custom under the Format Property of datetimepicker
dtpTime.Value = DateTime.Now;
It will display the value according to custom format, list of formats are available here at MSDN
Hope this helps..
To update to the current time, try using
DateTime.Now.TimeOfDay
Related
I have two datetimePickers in my form.
First Start date.
Second End Date.
I want to limit second datetimepicker to the end of the month of the year.
If we are in 2020, its range should be till 31.12.2020.
private void DateTimePicker1_ValueChanged(object sender, EventArgs e)
{
dateTimePicker1.MinDate=?
}
You should do something like this. There is no special event for setting the MaxDate you set it once you create an instance of DateTimePicker.
Also you should be setting datepicker'sMaxDate property not MinDate
DateTimePicker dateTimePicker2 = new DateTimePicker();
// Set the MaxDate.
dateTimePicker2.MaxDate= new DateTime(DateTime.Now.Year,12,31);
DateTimePicker has a Value Changed event which is called once you change any dates on the datepicker
You can use something like this
var maxDate = new DateTime(DateTime.Now.Year,12,31);
so I have two variables
DateTime date1 = DateTime.Now;
DateTime selected;
and an event handler that should change the "selected" variable to the day selected on the calendar. time is a text box where a user can insert the time as well.
private void MonthlyCalendar_SelectedDatesChanged(object sender, SelectionChangedEventArgs e)
{
selected = Calendar.SelectedDate.Value;
selected = DateTime.Parse(time.Text);
}
How can I set the time portion of the selected variable? I know that since DateTime is immutable it can not be changed as easy as I would wish. currently the Parse call resets the selected varriable back to the current date.
You can't exactly change the time but you can try using timespan to add the time to the date
DateTime selected;
selected = Calendar.SelectedDate.Value;
TimeSpan ts = new TimeSpan(09, 15, 0);
selected = selected.Date + ts;
This would make it the same date but 9.15am
Here is the code to set the time when the datetimepicker value changed
private void o_start_ValueChanged(object sender, EventArgs e)
{
o_start.CustomFormat = "dd-MM-yyyy hh:mm:ss";
o_start.Value = Convert.ToDateTime(System.DateTime.Today.ToShortDateString() + " 00:00:00");
}
but the winforms still display 12:00:00 after i picked the date, anyone know what is the problem?
Change in the custom format the hours part:
o_start.CustomFormat = "dd-MM-yyyy HH:mm:ss";
Notice the capital HH
Edit
Although it was not in your question, as #ZoharPeled mentioned in his comment, you can initialize your DateTimePicker using Today property of System.DateTime:
o_start.Value = System.DateTime.Today;
For a 24 hour format the hour should be HH and not hh
o_start.CustomFormat = "dd-MM-yyyy HH:mm:ss";
I have a calendar and a textbox that contains a time of day. I want to create a datetime that is the combination of the two. I know I can do it by looking at the hours and mintues and then adding these to the calendar DateTime, but this seems rather messy.
Is there a better way?
You can use the DateTime.Add() method to add the time to the date.
DateTime date = DateTime.Now;
TimeSpan time = new TimeSpan(36, 0, 0, 0);
DateTime combined = date.Add(time);
Console.WriteLine("{0:dddd}", combined);
You can also create your timespan by parsing a String, if that is what you need to do.
Alternatively, you could look at using other controls. You didn't mention if you are using winforms, wpf or asp.net, but there are various date and time picker controls that support selection of both date and time.
If you are using two DateTime objects, one to store the date the other the time, you could do the following:
var date = new DateTime(2016,6,28);
var time = new DateTime(1,1,1,13,13,13);
var combinedDateTime = date.AddTicks(time.TimeOfDay.Ticks);
An example of this can be found here
Depending on how you format (and validate!) the date entered in the textbox, you can do this:
TimeSpan time;
if (TimeSpan.TryParse(textboxTime.Text, out time))
{
// calendarDate is the DateTime value of the calendar control
calendarDate = calendarDate.Add(time);
}
else
{
// notify user about wrong date format
}
Note that TimeSpan.TryParse expects the string to be in the 'hh:mm' format (optional seconds).
Using https://github.com/FluentDateTime/FluentDateTime
DateTime dateTime = DateTime.Now;
DateTime combined = dateTime + 36.Hours();
Console.WriteLine(combined);
DateTime newDateTime = dtReceived.Value.Date.Add(TimeSpan.Parse(dtReceivedTime.Value.ToShortTimeString()));
Combine both. The Date-Time-Picker does support picking time, too.
You just have to change the Format-Property and maybe the CustomFormat-Property.
I'm making a program using C# vs2008, this is a preparation for my thesis. I'm trying to make my date time picker to show month/day/year without the time in my datagridview. My date time picker is set into datetime.
Here's the sample of my code:
Registrar.InsertStudent(
Convert.ToInt32(txtStud_ID.Text),
txtFname.Text,
txtGname.Text,
txtMname.Text,
txtPAdd.Text,
txtLline.Text,
txtMobile.Text,
cbCitizen.SelectedItem.ToString(),
dtpDOB.Value,
Convert.ToInt32(txtAge.Text),
cbGradeLvL.SelectedItem.ToString(),
cbGender.SelectedItem.ToString(),
txtMotherName.Text,
txtMComp.Text,
txtMOcc.Text,
txtMAdd.Text,
txtMTele.Text,
txtFatherName.Text,
txtFComp.Text,
txtFOcc.Text,
txtFAdd.Text,
txtFTele.Text,
Convert.ToInt32(txtSiblings.Text),
txtSchool_Last_Attend.Text,
txtSchool_Add.Text,
txtDname.Text,
txtDTele.Text,
txtInsuComp.Text,
cbMedical_List.SelectedItem.ToString(),
txtPerson_Notified.Text,
cbRelation_Pupil.SelectedItem.ToString(),
txtIE_Contact.Text,
txtOther_Allergy.Text,
txtOtherIE.Text
);
You can set custom date format to the DateTimePicker as follows:
this.datetimepicker.Format = DateTimePickerFormat.Custom;
this.datetimepicker.CustomFormat = "MM-dd-yyyy"
You can try with this code
var result = dateTimePicker1.Value.Date.ToString();
Don't fully understand your question but if you can access the DateTime variable.
DateTime dt = DateTime.Now;
string dateString = dt.ToString("yyyy-mm-dd");
dateString now equals = "2012-09-08" (depending on timezone)