如何让 dateTimePicker 不依赖于系统日期格式 C#

Question

I have this code that sets the time on the dateTimePicker but it crashes on my mates computer because his Windows system date format is dd/MM/yy. I tried to set a custom time in the property field and in code but it doesn't accept it. How do I force the dateTimePicker to use a certain format?

deadline_dtp.CustomFormat = "dd-MM-yyyy";
deadline_dtp.Format = DateTimePickerFormat.Custom;
deadline_dtp.Value = new DateTime(idYYYY, idMM, idDD);

Answer 1

That must work according to msdn .

Give it a try by setting the format before the custom format.

Example

private void Form1_Load(object sender, EventArgs e)
        {
            dateTimePicker1.Format = DateTimePickerFormat.Custom;
            dateTimePicker1.CustomFormat = "dd-MM-yyyy";
        }

Edit after comment

Add this 2 lines in the upper method:

var rightNow = DateTime.Now;
dateTimePicker1.Value = new DateTime(rightNow.Year, rightNow.Month, rightNow.Day);

If that is still not working, try to debug the values that are coming from your arguments in "new Datetime(...".