Setting DateTimePicker to Null

Question

I am unable to set the set the Datetimepicker to Null, how can do it. In my project my requirement is to validate the DTPif it is a null, for that I need to set to Null, The code I am using is:

              {
                dateInsert.Format = DateTimePickerFormat.Custom;
                dateInsert.Text = string.Empty;
               }

Answer 1

Use the following code:

dateTimePicker1.Format = DateTimePickerFormat.Custom;
dateTimePicker1.CustomFormat = " ";

Answer 2

Take a variable and set its value when DateTimePicker value changes

e.g.

DateTime? myselectedDate = null;

private void DateTimePicker1_ValueChanged(Object sender, EventArgs e) {
   myselectedDate = DateTimePicker1.Value;
}

Answer 3

I had a similar question but I could not find an answer I liked. However, I did come up with a suitable solution. Set the "ShowCheckBox" property for the datetimepicker to true. This will put a check box next to the date in the box. Then add the following code.

if (dateTimePicker1.Checked == false) 
    myVariable = ""; 
else 
    myVariable = dateTimePicker1;