windows forms display the blank text box error

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i want to display an error on testing if my two textboxes are empty on winform.
I dont know if the mbox is an better option .so can i use the balloon for the display of error message or there is some other better method to do that .

Posted 19-Jun-12 2:20am

gaurish thakkar

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OriginalGriff · Answer 1 · 2012-06-19T02:29:00

It's a odd question to try and answer - it depends on when you want to check, and what you want to happen.
Normally, you would check when they press the OK button or similar (or better, disable the OK button until the entries are valid)

But, if you do that then showing a message means cancelling the OK action - which isn't difficult, but can be unexpected, and intrusive.

What are you trying to achieve with the check? When do you need to apply it? How critical is it? Should it disrupt the user input? All these things depend on what your form will be used for: if it is data entry, then errors at the end can be more friendly, since data entry workers don't look at the screen when they enter data. And so on.