The following code shows the implementation of this validate() function.
Now we will see how we can validate our entered form data before submitting it to the web server.
If the data entered by a client was incorrect or was simply missing, the server would have to send all the data back to the client and request that the form be resubmitted with correct information.
With a little work you could easily turn this into a j Query helper method that you could reuse in all sorts of situations.
Java Script provides a way to validate form's data on the client's computer before sending it to the web server. First let us see how to do a basic form validation.
In the above form, we are calling validate() to validate data when onsubmit event is occurring.
This is a good source of info Startv20/aspnet/doc/validation/second option is to find all textboxes and display the message Required field validators would work great.
However, if you prefer a j Query solution you could try something like this.