Sometime date goes blank in My asp.net page

[Ghazi Anwer]

I have an asp.net page. where user update his tasks and enter the date of completion in a text box . on the text box i have used a requiredfield validator clause as well. This application works for many location and works fine. but sometimes to some user it gives problem. That is user enter date of completion but it goes null or blank in the table.
i can not find the reason for that. debug the code it works fine. but on one or two locations this error occurs sometime.

Please help if anybody has faced the same problem anytime.

Regards,
Ghazi

[PsychoCoder]

Please start by showing us the code you're using to accomplish this task. It's nearly impossible for us to help without seeing how you're attempting this process :)

[Frinavale]

When is "sometimes" ?
What was the user doing when this happens?