If the user enters invalid data they’ll see an icon shown in Figure 3.
After the validating event returns without being cancelled, meaning we have valid user input, then the validated event will be raised.
In this case, we simply clear any error messages in the error provider.
The Name textbox works very similarly but we don’t have quite as elaborate validation logic.
Is there a simple way of triggering validating/validated event on the button? I tried placing textbox on the form and tabbing between button and textbox, but neither of those events get triggered.
I'm a bit confused, as far as I remember the Textbox used to launch the Validating event when the used pushed the Enter key after entering the desired text but this is not happening now.
For example, you could display an error message, change the field’s background color, or at least beep to let the user know that focus did not leave the field because something is wrong. The event triggers even if the user tries to close the form.
Find the below sample screen shot for validating the fields before saving the data Img 3: Validation method Here I have validated the fields using the Boolean method, If all the field values are entered properly it will return true, other wise it will return false and will display an error message.
I understand how validated event works with textbox but I don't understand how it's triggered with button on a form.
The following code example uses the derived class Text Box and validates an e-mail address that the user enters.
If the e-mail address is not in the standard format (containing "@" and "."), the validation fails, an Error Provider icon is displayed, and the event is canceled.