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: Is there an advantage to using a control array instead of using x number of labels, textboxes, etc ? Answer: There are several advantages to using control arrays. First
Question: I’m working with Visual Basic and Access 1.1. Currently my program uses two tables (tblrep and tblsales). The common field being tblrep.id = tblsales.id. The first form of the
Question: I have written a testing program that writes results to a grid.How do I write the grid to disk so that changes can be addedfrom testing session to testing
Question: I need to place multiple option buttons on a form. I alsoneed to be able to have two buttons selected at all times.I can do this with multiple frame
Question: I am using VB together with Access. What I want to do is to include photo into my form. In Access table, I declare thisfield as an OLE field
Question: What it’s the correct SQl Statement to search an access database by a numeric field? I keep getting an invalid type error when I try to run the application.
Question: I am having a problem that I hope has not been answered herebefore. I am experiencing different results when I run a program than I do when I use
Question: I don’t know how to access individual characters in a string.ie. accessing single elements in an array of characters.Each time I try I keep getting Type mismatch. Answer: You
Question: I have a formless VB exe program that creates VB modules(.bas) and saves them to disk.Is there a way of having my program start VB passing my module name
Question: I have a copy of data widgets from sheridan sware and am using the SSDataGrid provided. All i want to do is insert data in the grid at a
Question: I’m using the 3D Panel in my application. When I setits background coulor to light grey, it looks fine onmy workstation but it’s white in any other workstations.That’s true
Question: Is there a way to put the cursor at the end of the text in a text box? I use .SetFocus to put the cursor in a multi-line text
Question: Can I get the name of the procedure that an error has occurred in?For example, I would like to send my error to a form that containsthe error number,
Question: Can one call a stored procedure or function in oracle 7through odbc from visual basic? This might be a questionfor an oracle user group, so if you know where
Question: I have a List with names and addresses from a database.I want to have the list as shown below.Mr. Smith Street 10Mr. Andersson Street 25I’ve tried aligning them by
Question: I have visual basic 2.0 Hopefully not for long. If I make a button that does a funtion like this. n = n + 1 print nit gives me
Question: I’m trying to use the KeyPress event to automatically uppercase what the user types. How do I do it? Answer: Put the following code into the KeyPress event of
Question: What is the best method to use for updating an Access 2 database from Visual Basic? I am a bit confused aboutthe methods presented such as 1) VB Data
Question: In procedure, I used statement like this:ds.FindFirst “fulldate = ’95-10-31′” ‘ds is DynaSet variablebut always it fails, and ds.NoMatch Value is True(-1).What’s wrong with this? Please help me. Answer:
Question: not having programmed in any of the BASIC languages, I am wondering if Visual Basic’s string variable is in anyway similar to what a string variable is in C
Question: What’s wrong with this code :if file1.filename=”*.bmp” then picture1.LoadPicture(file1.filename) Answer: I’m guessing you’re trying to check the selected filename to see if it ends in .BMP, right? The problem
Question: We have a Large VB application (code wise) and we are movingthe data from MS access to Sybase using the ODBC driver.Now, after we presented the project’s time tale
Question: I am trying to connect my MS ACCESS 2.0 Database to the WWW viaa VB-CGI-Script. I figured out, how to transfer data from a HTML-Form to my VB-programm but
Question: Is there any way to clear a combo box without it’s Textproperty being set to null? Answer: As far as I know and have tried, the only way to
Question: I am resizing my widows during runtime. I also want my dialogboxes to resize with the window. My program is doing thiscorrectly. But it is not resizing the command
Question: I have a requirement to only allow a copy of an application to be executed once.If someone tries to execute the app a second time, I want to give
Question: I have a Huge front end to an Access database. The front end was created in VB3.0, I recently upgraded to 4.0, it states that the references should work
Question: Data1.Recordset.FindFirst “LastName = ‘Quayle’”Ok that works fine. Why can’t I:Data1.Recordset.FindFirst “LastName = VarLN”where VarLN is a variable which the user has just provided? I get error 3070, “Can’t bind
Question: Is there an easy way to clear a combo box’s contents, other than using the Clear method? Answer: One of my users suggested that if you add a space
he technologies of Message Transmission Optimization Mechanism (MTOM) and XML-Binary Optimized Packaging (XOP) are concerned with the fundamental issue of binary data transmission, which is
ost developers understand the value of the layered approach to architecture. The main principle behind layered architectures is that of “separation of responsibility”. Each layer
rrors and exceptionsare two similar notions that differ in one crucial aspect: exceptions are a runtime concept, whereas errors are anomalous conditions that can and
n Article 1 of this series, you saw how to create a custom configuration section in a Web.config file and access it using a custom
As you know, the EJB container offers strong support for “save/load” the state of a stateful bean. The problem arises when you have to deal
This script was written to monitor a program whose process life was only a few seconds. It runs forever and only outputs that SQL which
This is in response to the original “Escape Sequences in .NET Resource Files, by Boris Eligulashvili. There is actually another way to insert escape sequences,
nterprise Application Integration (EAI) is a collection of architectural principles combined to integrate new and existing applications both within the enterprise and in business to
any developers have started to warm to the power and simplicity of Ruby. While the language is simple and powerful, one of the hits against
he Asynchronous JavaScript and XML (AJAX) technology is notorious for making the user experience in web browsers more efficient, dynamic, and enjoyable and can minimize
y previous article discussed the new Application Settings feature in Windows Forms 2.0. The article demonstrated this feature using C#. However, the application settings feature
his article describes one simple solution for achieving interoperability between Windows Workflow (WF) and ASP.NET. It leverages the power of WF’s powerful visual logic to