Optional Parameters in ASP

Optional Parameters in ASP

In my Visual Basic ActiveX DLLs, some of the methods that I created for my objects use optional parameters. When I attempt to call these methods, I receive a syntax error from IIS. I have tried referencing the method using both of the following methods:

   myObject.Load( ,Param2Val)


   myObject.Load(Param2 := Parma2Val)

I have tested this object and successfully called it using Visual Basic, so I was wondering if this problem is VBScript specific. Any ideas?

It’s not so much a problem with VBScript as it is a designed behavior. Since VBScript was originally intended for use on the Web, it is “lighter” and provides fewer features than does its full-grown VBA counterpart.

In your first example, you might consider writing the object method so that it treats empty parameter strings the same way as it treats missing parameters. For example, inside of the method you might write:

If (IsMissing(Input)) or (Len(InputParam) < 1) Then...

This would enable you to make the call in ASP as


As for your second example, you should call it without the parameter name as follows:


Again, this behavior is by design, as VBScript is not intended to work in exactly the same way as Visual Basic for Applications.

Share the Post:
XDR solutions

The Benefits of Using XDR Solutions

Cybercriminals constantly adapt their strategies, developing newer, more powerful, and intelligent ways to attack your network. Since security professionals must innovate as well, more conventional endpoint detection solutions have evolved

AI is revolutionizing fraud detection

How AI is Revolutionizing Fraud Detection

Artificial intelligence – commonly known as AI – means a form of technology with multiple uses. As a result, it has become extremely valuable to a number of businesses across

AI innovation

Companies Leading AI Innovation in 2023

Artificial intelligence (AI) has been transforming industries and revolutionizing business operations. AI’s potential to enhance efficiency and productivity has become crucial to many businesses. As we move into 2023, several

data fivetran pricing

Fivetran Pricing Explained

One of the biggest trends of the 21st century is the massive surge in analytics. Analytics is the process of utilizing data to drive future decision-making. With so much of

kubernetes logging

Kubernetes Logging: What You Need to Know

Kubernetes from Google is one of the most popular open-source and free container management solutions made to make managing and deploying applications easier. It has a solid architecture that makes

ransomware cyber attack

Why Is Ransomware Such a Major Threat?

One of the most significant cyber threats faced by modern organizations is a ransomware attack. Ransomware attacks have grown in both sophistication and frequency over the past few years, forcing

data dictionary

Tools You Need to Make a Data Dictionary

Data dictionaries are crucial for organizations of all sizes that deal with large amounts of data. they are centralized repositories of all the data in organizations, including metadata such as