Set timepicker value in code

问题

Is it possible to set the timepicker value in code.

What I am thinking here is that if I have a timepicker and choose a time value, thats the time is should use.

But if I dont choose a time value, it should set 00:00 as default and I want to do this with code.

Hade some crazy idea that looked like this:

DateTime date;
date.Hour(00:00:00)

Didnt work that good so is there any good way for making this.

UPDATE

Here is what i am thinking:

DateTime? temp = (DateTime)startDate.Value;
            DateTime date1;
            if (temp == null)
            {
               //Set the time to 00:00
            }
            else
            {
                date1 = (DateTime)temp;
            }

update2 Here is all code and getting an exception and thats why i want to set the value in code becasue accepting nullable datetime didnt seem to work.

  DateTime date = (DateTime)datePicker.Value;
  DateTime break1S = (DateTime)startBreak1.Value;
   _nestedDateStartBreak1 = new DateTime(date.Year, date.Month, date.Day, break1S.Hour, break1S.Minute, 0);

回答1:

If you have already overridden the DateTimePicker control to be only a TimePicker you just need to set the text property of the control.

    myTimePicker.Text = "00:00:00";

If you still have a DateTimePicker and want to make it only a TimePicker just set the following properties:

    myTimePicker.Format = DateTimePickerFormat.Time;
    myTimePicker.ShowUpDown = true;

My suggestion is to set the default Text value ahead of time so that if the user does not input a time, it will contain the default time you specify already.

EDIT: Setting default value for your DateTime object.

    DateTime defaultDate = new DateTime(); 
    defaultDate = Convert.ToDateTime("2013-12-31 00:00:00"); //Or whatever you want your default value to be...
    if (startDate.Value == null) 
    { 
        startDate.Value = defaultDate; 
    } 
    else 
    { 
        //do something else with the value 
    }

Somthing like that should get you the results you want.

来源：https://stackoverflow.com/questions/16898119/set-timepicker-value-in-code

标签

datetime

windows-phone-8

c#-2.0

timepicker