Storing Null Values from DateTimePicker in SQL DB

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Hi,

I am working on a windows application.

I am using datetimepicker, a submit button and a checkbox control on one of my forms.

If I click on the checkbox, the datetimepicker would appear and store the desired date into the database once the user hits the submit button.
If the checkbox is not checked, I want the date to be stored as a null field not the default value for empty date.

I have searched lot on this problem.

Please, help me with a simple and straight forward solution.

Thanks!!!

Posted 2-Jun-11 21:09pm

Ahsan Mirza

Updated 2-Jun-11 21:24pm

Dalek Dave

v3

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Dalek Dave 3-Jun-11 3:24am

Edited for Grammar and Readability.

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Wayne Gaylard · Accepted Answer · 2011-06-02T21:53:00

Solution 1

There is no secret. First of all the database field must be set to allow null entries, and the when you insert the row into the database table, you either specifically create a null value parameter for your sql command like this

C#

cmd.Parameters.AddWithValue("@yourDateField", null);

, or you just leave the field out in your sql query.

Posted 2-Jun-11 21:53pm

Wayne Gaylard

Comments

walterhevedeich 3-Jun-11 4:11am

Agree. Its a 5.

Ahsan Mirza 3-Jun-11 7:36am

This has not been working for me.
Can you explain a bit please, as I am novice in programming.
Thanks