![visual basic applications visual basic applications](https://trumpexcel.com/wp-content/uploads/2018/11/Different-Parts-of-the-VB-Editor-in-Excel.png)
- #VISUAL BASIC APPLICATIONS .DLL#
- #VISUAL BASIC APPLICATIONS UPGRADE#
- #VISUAL BASIC APPLICATIONS CODE#
#VISUAL BASIC APPLICATIONS CODE#
That simplifies the problem for Navigant, which is shifting from Visual Basic and C++ to C# and rewriting code as necessary. "Most of our code is ASP with some Visual Basic embedded in it." "We only have a little bit in Visual Basic 6," says Neville Teagarden, CIO at Navigant International Inc., a travel management company in Englewood, Colo. Some IT departments don't have a large portfolio of Visual Basic applications, but rather just enough code to have to pay attention to the problem. But everything will be assessed on a case-by-case basis. "If there are people we aren't directly connected to, we may want to rewrite to expose things as Web services," he says. It's on the Web side - where rewriting isn't actually required - where Cooper says he expects to see the most use of the new. Net and see what new functionality could be added. That has led to the company's strategy: Leave existing Visual Basic desktop applications alone as long as they work if there's a major change needed, perform an assessment to see if it makes sense to rewrite the application in VB. "The functionality is combined into both."īut the number of Safeco's desktop Visual Basic applications is dropping, and the bulk of the portfolio is now on the Web side. "We do both desktop and Web applications for our agents," says Sam Cooper, a senior programmer at Safeco Corp., an insurance company in Seattle. Net's got to be," he says.įor other IT shops, an important consideration is the mix of applications on the desktop and on the Web. "Retraining is important, because going to this object-oriented approach - it's terrible to have to do it, but you have to think the way. But patching the old code isn't safe or practical.Īnd six months to a year from now, Sommer plans to end all Visual Basic work at Hughes Hubbard & Reed, shift new development to C# and begin porting old applications as required. The price tag for rewriting the firm's financial, document management and Web applications will be upward of $3 million. "Our approach is to leave the legacy code running in mixed mode, and then gradually port it - not en masse, but as needed," Sommer says. Another reason: The ultimate target isn't VB. The cost of moving applications is part of the reason why Hughes Hubbard & Reed LLP, an 1,100-employee law firm in New York, is taking a gradual approach to shifting its portfolio of Visual Basic applications to VB.
![visual basic applications visual basic applications](https://docs.tibco.com/pub/stat/14.0.0/doc/html/UsersGuide/GUID-C370A316-A985-44D4-AE5F-7CC1AEC293AA-display.gif)
#VISUAL BASIC APPLICATIONS UPGRADE#
Net includes an upgrade wizard, but it's intended to be used as a learning tool it's not designed to automatically find and convert incompatible code. Net removes almost all the limitations of Visual Basic when compared with other languages.īut moving legacy programs to VB.
#VISUAL BASIC APPLICATIONS .DLL#
Net is that the common runtime all but eliminates "DLL hell," a situation where runtime Dynamic Link Library (DLL) files can be overwritten when new applications are installed, according to Microsoft. As a result, simple Visual Basic operations, such as reading and writing a file, must be reworked to use C++-like semantics. Net programming languages use a common runtime framework. Net, without adding new features, can run as high as 60% of the original cost of the application, according to Gartner Inc. The cost of a simple rewrite of a client/server application in VB 6 to VB. While the cost of scrapping an existing application and building a new one is substantial, so is just reworking the old code. For O'Toole, a former C++ programmer, the concepts weren't new, but he doesn't underestimate the challenge for the typical Visual Basic programmer.
![visual basic applications visual basic applications](https://docs.oracle.com/cd/E17666_01/doc/win.112/e12245/img/emp8.gif)
A couple were pretty object-oriented," he says. "Most of my guys were familiar with classes. A bigger obstacle for most teams is object-oriented programming. Net's new frameworks and syntax were a challenge, but online help made that relatively easy to handle. "We kept it running, but the new project replaces it." "The existing Visual Basic application was inadequate for the company," O'Toole says. "This" is a completely new version of a large legacy Visual Basic application, rewritten from the ground up with expanded features.Īt Zagat, which rates restaurants and hotels, the decision to start early with a complete rewrite in VB. "We've been working on this since Beta 1 about two years ago," says Patrick O'Toole, lead developer.