C program for validating date add agency br dating link
Therefore, this is the first place where the validation should be done.
These extra hidden characters are what is messing with your input and spawning the infinite while loop.
Data-bound controls raise events when validation occurs, giving the opportunity to write validation logic.
As well as the Error Provider component notifies the user of any validation problems.
I've been using the Date JS library and adding it to existing forms to ensure that I get valid dates & times formatted the way that I want.
The user can even enter things like "now" and "tomorrow" and it will be converted into a valid date.
5 if you are hand-rolling validation like you do here, all you need to do is to set the default value after you Message Box.