Set DateTimePicker value to be null

Question

I am developing a WinForms UI with two DateTimePicker controls. Initially I want to set the value of the controls to null until a user selects a date. If the us

Answer 1

Let suppose dtpStartDate is your DateTimePicker control.

Write this code in Page_Load-

`dtpStartDate.Format = DateTimePickerFormat.Custom;
            dtpStartDate.CustomFormat = " ";`

Write this code in Value_Changed event-

`startDate = Convert.ToString(dtpStartDate.Value);
        dtpStartDate.Format = DateTimePickerFormat.Short;`

here selected 'short' as Format. You can select 'Long' and other option available.

Answer 2

May be you need to create a UserControl withe the Appereance of a TextBox,and when the user click on a Calender Show, when you select a Date set it to the TextBox. It will allow nulls values.

The DateTimePicker does not allow null.