在代码中设置时间选择器值 [英] Set timepicker value in code

问题描述

是否可以在代码中设置时间选择器的值。

Is it possible to set the timepicker value in code.

我在这里的想法是，如果我有一个时间选择器并选择一个时间值，那就是时间

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

但是如果我不选择时间值，则应将00:00设置为默认值，而我想使用代码来做到这一点。

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

有个疯狂的主意，像这样：

Hade some crazy idea that looked like this:

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

同业工作很好，在那里做到这一点的任何好方法。

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

更新

这就是我思考：

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

update2
这是所有代码并得到一个例外，这就是为什么我要在代码中设置值的原因，因为接受可为空的datetime似乎不起作用。

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);

推荐答案

如果您已经覆盖了 DateTimePicker 控件只是一个 TimePicker 控件，您只需要设置 text 属性

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";

如果您仍然有 DateTimePicker 并想要只需将以下属性设置为 TimePicker ：

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;

我的建议是设置默认的 Text 提前设置值，以便如果用户不输入时间，它将包含您已经指定的默认时间。

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.

编辑：为<$ c设置默认值$ c> DateTime 对象。

    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 
    }

类似的东西应该可以为您带来想要的结果。

Somthing like that should get you the results you want.

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