NoNullAllowedException in DateTimePicker

Question

I'm working on a small application. I want to set today's value as the default value to the datetimepicker. Therefore used the form_load event and set the date like this:

DateDateTimePicker.Value = Date.Today

If I select a date from the picker it works fine. But if I don't it shows a null exception when saves it.

The exception occurs in

Me.SaleBindingSource.EndEdit()

Exception is

'System.Data.NoNullAllowedException'

You need to be more specific, and to show the code that makes you say "it shows a null exception when saves it". You probably mean a "NullReferenceException". In that case, note that almost all cases of `NullReferenceException` are the same. Please see "[What is a NullReferenceException in .NET?](http://stackoverflow.com/questions/4660142/what-is-a-nullreferenceexception-in-net)" for some hints. — John Saunders, Jun 21 '15 at 05:57
Sorry about that. I have 'System.Data.NoNullAllowedException' and it occurs in 'Me.SaleBindingSource.EndEdit()' — Choxmi, Jun 21 '15 at 06:01
Your call to EndEdit() commits the changes, and one of the committed values is null — Y.S, Jun 21 '15 at 06:24
Yes. Thank u. Value is the date value. If i keep it default I get the error msg. :-( — Choxmi, Jun 21 '15 at 08:43
Is there some other variable which is dependent on a value being picked in the DTP rather than the value of the DTP? — Andrew Morton, Jun 21 '15 at 21:54

score 0 · Accepted Answer · answered Jun 21 '15 at 21:37

0

You cant have null in datetimepicker but set it to datetime.min value and tgen perform validations

answered Jun 21 '15 at 21:37

Avneesh

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NoNullAllowedException in DateTimePicker

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