VB Script – How to use VBScript with Forms

In this tutorial you will learn about How to use VBScript with Forms. Introduction, How to do validate your Forms and Conclusion

Introduction

Now this is the last topic of the tutorial and you will learn how to validate and submit the data to the web server.

How to do validate your Forms

The process to validate the forms are as under. The two things should be checked.

1. All of the required data is entered.

2. The data entered is valid or not.

We will learn this by an example.

In the above example first we are checking whether the user has entered any value or not. If he has not entered any value we will prompt to enter any value. Second validation is that if he has entered any value , just check whether the data entered is numeric or not. If the data is not numeric prompt him to enter the numeric value otherwise move to next step. In the next step we are validating that the age value is entered as per the prescribed range or not.

At last if all the validations are met by the user , he will be shown a message that “Thanks for providing your age” and this data will be submitted to the web server.

Example :

The output on the browser would be as follows.

In the scripting part we have validated the Quantity field and determined that whether the user has entered some value or not. We have used the inbuilt vbscript function called Len which checks the length of the user input and compares.If the length comes to zero the user is prompted with the message. Second part we have checked for the numeric value whether the user has entered a numeric value or not. If we have passed all those values than the cost of the order is calculated and displayed.

Conclusion

This all wraps up our vbscript tutorials . Till now you must be aware of the basics and how to use vbscript with your web pages.