Vb net radiobutton validating
A friend recently asked for a code sample showing Java Script being used to client-side validate the radio inputs of an HTML form.This example took about 15 minutes to build and tweak to her specifications.Here is an example: You can also trigger the Validation event by giving focus to a control and taking the focus away.You might even loop through all the controls on your form and focus each of them individually (or an individual control by giving it focus then changing the focus to another control), achieving the same effect: Which solution is better?In my form there is a "Validating" event on a textbox. Is there a way to not execute the "Validating" event when the user clicks on the "Cancel" button?As a follow up to my previous post about enhancing the validation controls within Windows Forms, there might be times when you would like to manually invoke the “Validating” event of a control.For example, imagine that you had a questionnaire that asked the user a number of questions in radiobutton and checkbox form.
For example, if you visit the live demo with an uplevel browser you'll note that the Compare Validators exhibit client-side validation (enter a value of "bob" into the Text Box and tab out of it to see what I mean), while the Custom Validator does not (try entering a nonprime number, such as 6, into the Text Box - you are not alerted to the fact that the number you entered is not prime until you submit the form).
One annoying task that most every developer has had to face in the past is form validation.
Since forms are an integral part of dynamic, data-driven Web sites, it is essential that a user's query into a form fit the specified guidelines.
(There's also two Compare Validator controls to ensure that the user enters a positive integer into the Text Box.) .
Next, we compute the square root of the number entered by the user.