ASP Tutorials - Herong's Tutorial Examples

∟VBScript Language

∟Using VBScript in ASP Pages

This section describes 3 ways to use VBScript codes in ASP pages: in-line statement, in-line expression, and statement block.

There are three ways to use VBScript in ASP pages:

1. In-line VBScript statements: The VBScript statements must be enclosed in the special in-line script tag: <% %>. The enclosed statements will be executed by the server, and the output of response.write() calls will be merged in-line with the surrounding static HTML text. In-line VBScript statements require a language declaration statement to define explicitly VBScript as the server side scripting language, if you are not sure what is the default language defined on the Web server.

<%@ language="vbscript"%>
...
<%
vbscript_statement
vbscript_statement
...
%>

2. In-line VBScript expression: The VBScript expression must be enclosed in the special in-line script tag: <% %> with a leading "=" sign. The enclosed expression will be evaluated, and the resulting value will be converted into a string and merged in-line with the surrounding static HTML text. In-line VBScript expression also require a language declaration statement to define explicitly VBScript as the server side scripting language, if you are not sure what is the default language defined on the Web server.

<%@ language="vbscript"%>
...
<%
= vbscript_expresion
%>

3. Script block of VBScript statements: The VBScript statements must be enclosed by the starting script block tag <script> and the ending tag </script>. Two attributes are required on the script tag: "language" and "runat".

<script language="vbscript" runat="server">
vbscript_statement
vbscript_statement
...
</script>

Please note that the script block VBScript statements will be executed by the server. But the output of response.write() calls will not be merged in-line with the surrounding static HTML text. It will be:

• Inserted at the beginning of the HTTP response before any static HTML text, if the server's default scripting language is not VBScript.
• Appended at the end of the HTTP response after any static HTML text, if the server's default scripting language is VBScript.

This rule was a big surprise to me. I had to post a message to microsoft.public.inetsdk.programming.scripting.vbscript, and got confirmed from Microsoft. See the article Using VBScript and JScript on a Web Page.

Last update: 2003.

Table of Contents

 About This Book

 ASP (Active Server Pages) Introduction

 IIS (Internet Information Services) 5.0

 MS Script Debugger

►VBScript Language

►Using VBScript in ASP Pages

 Mixing VBScript Statements with Static HTML Text

 Variables and Expressions in VBScript

 Arrays and Loops in VBScript

 "Collection" Class in VBScript

 ASP Built-in Run-time Objects

 ASP Session

 Creating and Managing Cookies

 Managing Sessions with and without Cookies

 scrrun.dll - Scripting Runtime DLL

 Managing Response Header Lines

 Calculation Speed and Response Time

 ADO (ActiveX Data Object) DLL

 Working with MS Access Database

 Guest Book Application Example

 References

 PDF Printing Version