We are an award-winning tech entrepreneurship website where trusted experts can provide value globally.

Since 1998, DevX has helped people start businesses, build websites, and provide enterprise technology to people globally. Interviewing the likes of Microsoft’s co-founder, Steve Ballmer, the publication brings comprehensive, reliable, and accessible insights to the Internet.

devxlogo

Trusted for 26 years

Over 30K Articles

1M+ Readers

Expert-reviewed

10K+ Tech Terms

As seen in:

microsoft logo
business_insider_logo
wired_logo
berkley
arstechnica_logo
hackernoon

The Latest

DevX - Software Development Resource

Display Taskbar Icons for Borderless Forms

When you create a borderless form in VB (BorderStyle = 0) and make it visible to the taskbar (ShowInTaskbar = True), only the form’s caption shows and the form’s icon

DevX - Software Development Resource

Enhance Development with Registry Edits

Here are a couple useful Registry edits to enhance your day-to-day Visual Basic development. Save these Registry lines to a text file with a REG extension, and then double-click on

DevX - Software Development Resource

Catch Every TabStrip Click Event

You might have noticed that if you click on a TabStrip tab, then move the mouse pointer until it’s no longer over the TabStrip without releasing the mouse button, the

DevX - Software Development Resource

Convert File Size Into Proper Strings

Use this small API from the shlwapi (Shell Windowing API) DLL that ships with Internet Explorer (IE) to help you convert file size in bytes into proper strings such as

DevX - Software Development Resource

Sharing Files Between VB and VBA

You can easily share files such as standard code, form, and class modules (BAS, FRM, and CLS files, respectively) between VB and VBA by using the appropriate menu commands. Within

DevX - Software Development Resource

Manipulating the Browser’s Back Button

Question: I created a Web page that uses ASP to access a database on the server and return data to a client browser. While the data is accessed the client

DevX - Software Development Resource

Test for NULL Properly in a Recordset

Question: I have a column in SQL Server created like this: “vchrFirstName varchar (50) NULL” However, this code does not produce anything, including any errors, when the record is NULL:

DevX - Software Development Resource

Handling Single Quotes in Values From ASP

Question: How can I prevent sending the contents of a form field containing single quotes to the server? Single quotes should be converted to double quotes in a way that

DevX - Software Development Resource

Passing Parameters to an ASP Page

Question: How do you pass parameters from an HTML page using either Java or Visual Basic to an ASP page? Answer: You do not need Java or VB to pass

DevX - Software Development Resource

Use Underscores When Dealing With Long Strings

Question: Why do I get an “unterminated string constant” error message in this code? Answer: You can’t let your strings wrap onto multiple lines without using a continuation character. The

DevX - Software Development Resource

Run Code Only When Form Is Submitted

Question: I have a Web page that uses a form to submit information to an ASP page. Once the data is submitted, the page is reloaded. At this point, if

DevX - Software Development Resource

Installing IIS 3.0 to Read ASP Files

Question: We have a form that uses an ASP file to post results in Access 97. It works fine on my computer using Microsoft Personal Web Server, but will not

DevX - Software Development Resource

Publish Information From a Database to a Web Page

Question: How can I publish information from a database to a Web page? Answer: Microsoft’s Active Server Pages (ASP) makes it a snap to publish information from a database onto

DevX - Software Development Resource

WebClasses vs. Active Server Pages

Question: What do you suggest using as far as WebClasses versus Active Server Pages (ASP) is concerned? It appears that WebClasses do everything ASP can do, and are faster. Answer:

DevX - Software Development Resource

Always Create User Defined Data Types in the Database

While designing the database for your application, you should always create user defined data types for columns across the database. User-defined data types ensure consistency of column definitions across the

DevX - Software Development Resource

Make an ATL Object Noncreatable

Here is a simple way to make your COM object noncreatable. You can change the attributes of an ATL-based COM object so that the automation client cannot directly create the

DevX - Software Development Resource

Objects in Visual FoxPro

Question: How do you set a Visual FoxPro class or array as the value of a property of another VFP class? It appears that if you add a property to

DevX - Software Development Resource

Meaning of BLOB

Question: What does “BLOB” stand for? What is a BLOB datatype? Answer: BLOB is a binary large object. Binary files hold stuff like pictures and audio files that get stored

DevX - Software Development Resource

Change Color of a Table Cell in Netscape

Question: Is there a way to change the background color of certain table cells in Netscape? I know Internet Explorer gives you that capability, but I can’t seem to figure

DevX - Software Development Resource

SQL SELECT Clause Order

Question: In what order are the clauses executed when resolving an SQL SELECT statement? Does a DBMS first examine the FROM clause to create an intermediate result, or does it

DevX - Software Development Resource

Quick Property Edits

When you are placing controls on a form at design time and wish to edit one of its properties, the quickest way to switch to the Property window is pressing

DevX - Software Development Resource

Use ActiveControl to stop a loop

Often your user interface includes fields whose contents mutually depends on other fields. A typical example is when you deal with conversions from one measurement unit to another. Let’s say

DevX - Software Development Resource

Use Currency instead of LARGE_INTEGER values

A few API calls require that you pass one or more LARGE_INTEGER arguments. These are 64-bit integer values, defined as follows: Type LARGE_INTEGER lowpart As Long ‘ lower 32-bit value

DevX - Software Development Resource

Determine whether an API function is available

In many cases you may want to call an API function, but you aren’t sure whether the Windows version the application is running on supports that particular function.The easiest way

DevX - Software Development Resource

Remove collection items from the beginning

There are many different ways to delete all the items in a collection, but some of them are much faster than the others. Let’s start with a collection that holds