Add Vbscript code to an html page, Visual Basic Programming

Assignment Help:

You can employ the SCRIPT element to add VBScript code to an HTML page.

The SCRIPT Tag

VBScript code is written inside paired SCRIPT tags.

For instance, a process to test a delivery date might appear as follows:

SCRIPT LANGUAGE="VBScript"

Function CanDeliver(Dt)

CanDeliver = (CDate(Dt) - Now()) > 2

End Function

SCRIPT

Beginning & ending SCRIPT tags surround the code. The LANGUAGE attribute specified the scripting language. You have to specify the language since browsers can use other scripting languages, like JavaScript. Notice that the CanDeliver function is embedded in comment tags. This prevents browsers which do not support the SCRIPT tag from displaying the code on the page.

As the example is a general function - it is not tied to any specific form control - you can comprise it in the HEAD section of the page as shown below:

 

Function CanDeliver(Dt)

CanDeliver = (CDate(Dt) - Now()) > 2

End Function

You can employ SCRIPT blocks anywhere in an HTML page. You can put them in the BODY and HEAD both sections. Though, you will probably desire to put all general-purpose scripting code in the HEAD section to keep all the code together. Keeping your code in the HEAD section make sure that all the code is read & decoded before it is required by any calls from inside the BODY section.

One distinguished exception to this rule is that you may want to provide inline scripting code within forms to respond to the events of objects in your form. For instance, you can embed scripting code to respond to a button click in a form as shown in Figure:

HTML

HEAD

TITLE Test Button EventsTITLE

HEAD

BODY

FORM NAME="Form1"

INPUT TYPE="Button" NAME="Button1" VALUE="Click"

SCRIPT FOR="Button1" EVENT="onClick" LANGUAGE="VBScript"

MsgBox "Button Pressed!"

This coding example will display a button on Web Page. While you click on the button it would display a message box stating "Button Pressed".

Mostly code will appear in either Sub or Function process and will be called only while the code you have written causes that function to execute. Though, you can write VBScript code outside process, but still in a SCRIPT block. This code is executed only once, while the HTML page loads. This let you to initialize data or dynamically alter the look of your Web page when it loads.


Related Discussions:- Add Vbscript code to an html page

Retrieval methods - document in visual programming, Retrieval Methods: ...

Retrieval Methods: There are 3 ways to find a document. The primary method is a positional retrieval. This is achieved by keeping in mind where you left it. The next method is

Visual Basic 2010 by Julia Case Bradley and Anita C. Millspa, - I have the ...

- I have the chapter 5 project completed already. This is due tomorrow. Modify the Very Very .Boards project from Chapter 5 to separate the user interface from the business logic.

Project to display a database - data control, A Project to Display a Databa...

A Project to Display a Database: 1. Suppose that there are 5 fields describing a customer. Id, address, name, city & state. 2. Put 5 text boxes on the form to exhibit the r

Vb program for simple image processing, A program needs to be written that ...

A program needs to be written that is capable of simple image processing. All the images that are available for you to use, can be found on Blackboard in the Assignments section. T

Recurson, types and concept of recurson

types and concept of recurson

Vb script coding conventions, Coding conventions are recommended that may h...

Coding conventions are recommended that may help you write code via Microsoft Visual Basic Scripting Edition. Coding conventions can include the given: Naming conventions for ob

Software that is obscure - basics of gui design, Software That Is Obscure: ...

Software That Is Obscure: The Software hides the intensions, meaning and actions from the user. For illustration, if a user is asked whether a full installation, the custom in

Graphics device interface - windows programming , Graphics Device Interface...

Graphics Device Interface - GDI:   The GDI is a windows API. The GDI uses a set of generic graphics objects to draw to the screen, to the memory and printers. Therefore the p

Precompiled header file, THE PRECOMPILED HEADER FILE As soon as you gen...

THE PRECOMPILED HEADER FILE As soon as you generate a blank project, ahead of doing any coding you compile the project to generate .pch (that is the pre compiled header) file a

Web Scraping via program, I''m trying to create a program in VB.net that wi...

I''m trying to create a program in VB.net that will basically load the page within itself and allow you to input data via the program rather than going to the actual site using you

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd