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.
Question: I have an old DOS-Clipper app that I plan to upgrade to VB. The old app handles insurance claims. To enter a new claim, 4 screens of data are
Question: I try to align numeric numbers in columns (to be right-justified). Hwvr, some of the numbers don’t right-justify very well. In my example, most of these numbers hve 2
Question: If I apply a picture to a Form’s Picture property, is there a way to clear it out at design time? (Rather than by using LoadPicture “” at run
Question: I want to disable a text box without having its text dimmed. I know of one way, which is put the controlinto a picture box and disable the picture
Question: What do I have to do to make my application respond to a file-kickstart (double-click)in file-manager? When I select and associate a specific file type with my application it
Question: I am currently experimenting with VB 3.0. In version 1.0 common dialogs provided the information about which button was used to exit from the dialog. I want to know
Question: Is there an API function that will highlight a word in a textbox the way the find command does without using the clipboard? Answer: Set the SelStart property of
Question: How do I put a status bar at the bottom of an MDI parent form like in Word for Windows.Whenever I place a 3d panel on the form it
Question: How can I play WAV or MID files through Visual Basic? Answer: Use the MSMCI.VBX, provided with VB/Win Pro 3.0. You can also declare and call the MM-functions manually:Declare
Question: How do you pause after dialing a phone number ? I want to be able to dial a pager number and then pause 3 -5 seconds before sending the
Question: I am using VB4.0 Pro (16 bit) in WFWG and need to read entire directory of files, one after the other, without using the common dialog control. Answer: Look
Question: Can you help to create code for searching a word in a text box Answer: Let’s say that Text1 is your search criteria (word) and Text2 is the text
Question: Is there a method of keeping a window “on top” similar tothe Microsoft Office toolbar and various other applications.I need to be able to have a form iconized, then
Question: Sometimes when I call Text1.SetFocusit returns me an “Illegal function call” error. Any idea why? Answer: Normally, if the Form is not visible, you can’t call SetFocus to it.
Question: Is there a way to pass a recordset from an OLE server to anOLE client? I suspect so. Can we bind thepassed recordset to a client data control? Seems
Question: I have been successfully using the CTL3DV2.DLL to make 3D message boxes and common dialogs, but I have not been able to get it to work with standard VB
Question: I am running my VB application on Novel 3.12 file server. When application is running it shows to 2 instances of programon file server console: for example if application
Question: Supposing that in Form_Load I determine that I wish to cancel the load of the form (so that nothing is in memory and nothing is displayed to the user).
Question: How can I interpret the command line arguments for a .EXEcreated with VB ? Answer: The Command$ variable contains the arguments that were on the command line when a
Question: I have a application developed by VB 3.0(prof) and Access 1.1 withinVB. I use a lot of dynaset objects in the program. Now I want to transferit to a
Question: I have a Access table and I want to pull from that table one of each type and place it into a combo box using SQL. How can I
Question: How do I control the size of a form? Answer: Either set it at design time, or use the Width, Height, Top, and Left properties to set the form
Question: Just recently I noticed that if I close my app while it is minimized, the app seems to be left in memory and is still recognized by Windows as
Question: What graphic file formats does VB support? Does it support the GIF format? Answer: Visual Basic supports the Windows Bitmap (.BMP), the Windows Icon (.ICO), and the Windows Metafile
Question: I am getting the error: INCORRECT NUMBER OF EVENT PROCEDURE ARGUMENTS. This has been occuring ever since I created a control array of command buttons. I have to complete
Question: I have a 3D Panel on a form that fills in incrementally when certain operations are run. I expect that the panel should be visible when the form appears
Question: I am trying to put a counter in my program which will keep track of how many times a command button is pressed.I know it is simple but I
Question: When I edit my .RTF file in Microsoft Word 6.0, the help compiler gives me an error saying “This application has violated system integrity due to an invalid fault
Question: I’ve developed an application using VB4.0, but I can’t distribute it because the installed application breaks on any reference to dbEngine object.In my machine the application runs perfectly, but
Question: Is it possible to edit a VB3 executable at runtime, i.e. inserting Registered user name and serial number information into the executable so that it can come up when
rom basic, static HTML pages to totally data-driven and data-centric Web applications, the demands on a Web developer are much more complex and demanding than
orking with value types was sometimes awkward in .NET 1.x, because they could cause serious problems in applications that retrieved data from database tables containing
xplicit typecasting is considered are an abomination in object-oriented programming. However, prudery won’t change the fact that casts are still a widely-used feature in C++
I have always been fascinated by informational graphics. Mathematicians aside, most people find properly rendered information graphics easier to assimilate and quicker to understand than
here’s something about sitting down to write a Brew application in C that makes me go back to basics: the very basics, like writing my
There are many ways to start a new web application in Tomcat, but this tip is for the developers who want to do so by
The System.Windows.Form class’s UseWaitCursor property sets the window’s cursor to an hourglass. It is a Boolean property. The Application class also contains a UseWaitCursor property,
Did you know you can determine if a number is prime by calling an XQuery query? Here’s the code: <prime_numbers> { for $a in (1
rior to SQL Server 2005, Microsoft’s SQL Distributed Management Objects (SQL-DMO) offered the most efficient way to manage SQL Server programmatically. SQL-DMO supported a COM-based
any developers have adopted AJAX as a way to develop rich web applications that are almost as interactive and responsive as desktop applications. AJAX works
The AWTEventListener class’ sole purpose is to view events. All you have to do is to implement the eventDispatched method. The following application demonstrates how:
While converting to Excel 2007, I had to update the column-number-to-string code in my program to handle columns of 703 and above (AAA). I found