Set default format of datetimepicker as dd-MM-yyyy

问题

I have a datetimepicker which on loading of windows form shows me format in 'MM-dd-yyyy',

as follows:

I would like it in dd-MM-yyyy.

I tried the following:

set custom format: "dd-MM-yyyy"

But Its not changing.

What could be the problem?

Please help me.

回答1:

Ensure that control Format property is properly set to use a custom format:

DateTimePicker1.Format = DateTimePickerFormat.Custom

Then this is how you can set your desired format:

DateTimePicker1.CustomFormat = "dd-MM-yyyy"

回答2:

Ammending as "optional Answer". If you don't need to programmatically solve the problem, here goes the "visual way" in VS2012.

In Visual Studio, you can set custom format directly from the properties Panel:

First Set the "Format" property to: "Custom"; Secondly, set your custom format to: "dd-MM-yyyy";

回答3:

You could easily use:

label1.Text = dateTimePicker1.Value.Date.ToString("dd/MM/yyyy")

and if you want to change '/' or '-', just add this:

label1.Text = label1.Text.Replace(".", "-")

More info about DateTimePicker.CustomFormat Property: Link

回答4:

Try this,

string Date = datePicker1.SelectedDate.Value.ToString("dd-MMM-yyyy");

It worked for me the output format will be '02-May-2016'

回答5:

You can set CustomFormat property to "dd-MM-yyyy" in design mode and use dateTimePicker1.Text property to fetch string in "dd/MM/yyyy" format irrespective of display format.

来源：https://stackoverflow.com/questions/19466805/set-default-format-of-datetimepicker-as-dd-mm-yyyy