How to compare the date entered by datetimepicker and current date

Question

I have datetimepicker tool that is used for employee birth date entry and I want to check if the user forget to enter the valid birth date and left the datetimepicker on the current date ,so he'll get an alert message.
I've tried to write this code in ValueChanged event but it didn't worked as I wished ... any help

if (empRegBdatePicker.Value == DateTime.Today)
            {
                MessageBox.Show("Please enter a valid birth date of an employee");
                empRegBdatePicker.Focus();
            }

Possible duplicate of [How to compare DateTime in C#?](http://stackoverflow.com/questions/3059497/how-to-compare-datetime-in-c) — M. Adeel Khalid, Jan 26 '17 at 12:12
I think we need more information. Does the debugger hit the code above? What is the value of `empRegBdatePicker.Value`? In what way did it not work? — Baldrick, Jan 26 '17 at 12:12
Do not write it in the ValueChanged event, if the user forgets to input their date of birth the value won't change so the event won't fire. — bolt19, Jan 26 '17 at 12:18

score 4 · Accepted Answer · edited Jan 26 '17 at 12:50

4

If you want to check just date, you can try this:

if(empRegBdatePicker.Value.Date == DateTime.Now.Date)
{
    //birthdate is today
}

edited Jan 26 '17 at 12:50

Manfred Radlwimmer

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answered Jan 26 '17 at 12:47

Nedim Hozić

1,871
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I'v used your condition in the Validating event and it's perfectly did what I wanted from my question.. thanks alot :) – Mouad Raizada Jan 26 '17 at 12:51

score 0 · Answer 2 · answered Jan 26 '17 at 12:20

0

Just simply write

if(empRegBdatePicker < Today)
{
    //birthdate is in past
}

Also, perform this validation before any save operations instead of some value changed events.

answered Jan 26 '17 at 12:20

Ali Baig

3,819
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where should I write this condition? – Mouad Raizada Jan 26 '17 at 12:31
You should check that before any "saves" to databases so it validates the rule. With field change events, user can skip (does nothing) and can still manages to get away – Ali Baig Jan 26 '17 at 12:34

How to compare the date entered by datetimepicker and current date

2 Answers2