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OpenFileDialog in Visual Basic .Net
The Visual Basic 6.0 DirListBox control has been rendered obsolete by the OpenFileDialog and SaveFileDialog components in Visual Basic 2005.
Conceptual Differences
The Visual Basic 6.0 DirListBox control was typically used to display directories and paths in a File Open or Save dialog box.
In Visual Basic 2005, the Windows Forms OpenFileDialog and SaveFileDialog components provide the ability to create standard Windows dialog boxes for working with files, in most cases eliminating the need for the DirListBox control.
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Creating Excel Spreadsheets from VB.NET
This tutorial teaches you how to create an Excel spreadsheet
with multiple worksheets. The tutorial includes step-by-step
instructions and full source code.
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Yes, Virginia, Visual Basic is a Real Language
Once upon a time, there was a simple, interpreted language used for teaching new programmers called BASIC - the Beginner's All Purpose Symbolic
Instruction Code. Compared to modern standards, this was a very simplistic
language, with no compiler, no run times, no linking, and no GUI...
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Visits: 441 Updated: 2007-6-11 Rating: | | |
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Design Patterns In VB.NET School
Using design patterns can lead to better designed and implemented object oriented programs. They can also help make code more understandable. The Programmer's Heaven design patterns school covers each design pattern, complete with explanations and code examples in VB.NET. It also looks at the approach taken by the creators of design patters and the motivation for using them in your own development.
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Visits: 1242 Updated: 2007-4-10 Rating: | | |
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VB InStr function
InStr is a powerful VB string function. It's the perfect way to search and test strings in robust Visual Basic applications. This article shows how to call InStr to perform advanced text processing tasks quickly. The article also discusses case insensitivity, vbTextCompare, Option Compare Text and InStr related bugs.
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Optimize string handling in VB6 - Part II
Make your Visual Basic apps process text fast as lightning. This article dives deep into the performance of the VB6 String functions. We learn the functions to use and the ones to avoid. We also learn how to call the Windows Unicode API functions and how to build really, really huge strings without crashing our VB6 apps.
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Optimize loops
Loops make programs run slowly. A few unoptimal lines can make an app run at a snail's pace. This article presents performance tricks for squeezing the max speed out of your code. The focus is on processing data arrays in loops. We restructure loops, rebuild function calls, fine-tune conditionals, choose fast operators, pre-calculate values and access arrays the proper way.
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TeamVision
TeamVision was originally based upon the TaskVision code sample offered via the WindowsForms website. TeamVision is a simple task management application built using the Windows Forms classes of the Microsoft® .NET Framework an
integral Windows® component that supports building and running the next generation of applications. TeamVision allows
authenticated users to view, modify, and add projects and tasks that are shared with other users. It may be used in any
number of scenarios, from bug tracking to managing work orders or customer service requests. Its primary purpose is to
provide quality, sample source code to developers interested in building data-centric applications with ADO.NET using the
.NET Framework
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Remote file compression with VB.NET
Transferring large files over the Internet can be speeded up significantly if compression/decompression is applied before/after the upload/download operation. This article shows how to do that in VB.NET with a freeware file sharing library.
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Developing the Components for the Middle Tier in VB .Net
Middle tier equates to the Business tier or Application tier or Logical tier and contains the logic of the application. Middle tier simplifies the client´s access to the database (SQL Server) by isolating the business services from the Database and Presentation tiers. The components of the Application or Business tier are frequently called business services. Middle tier runs on a server and is often called the application server.
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Save memory
Make your programs use less memory without sacrificing their functionality. This article shows a number of tricks to preserve RAM while your program runs.
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Copying vs. Cloning
We start by saying that (almost) everything in .NET is an
Object (capitalisation intentional) not just something we can
describe as an object, but is derived from the Framework Class
System.Object. The Object Class is the ultimate parent of each
and every Object contained either within the Framework or which
is derived from it. Unfortunately, below the System.Object
level, things get a bit more complicated and the idea of an
Object having a Type must be introduced.
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eNumerous Options Using Enumerations
For most of us, enumerations provide a means of selecting one of many options. What some of us don't know is that they also provide a means for us to specify more than one option at a time in one variable or argument. I came to this realization when I happened to visit a couple of students who were working on a college project in Visual Basic 6 recently. A part of their application allowed a user to select one or more of a set of eight options. To do this, they had 8 Boolean variables to determine which options were selected and I had to come in and point out to them that using an enumeration was the way to go.
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Web Service vs Web Workspace Part II By Robbe Morris
XML plays a key role in moving data from our desktop app to the web site and back again. Speed is also a key factor and anyone who has worked with XML files knows they can get quite large. With that in mind, I went looking for an XML streaming compression component and found a fantastic one from XCeed.
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Refactoring VB in Visual Studio 2005
Refactoring can improve the internal structure of your VB code without changing its external behavior. Use it to remove the subjectivity of what is good code and what is less-good code.
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Refactoring VB in Visual Studio 2005
Refactoring can improve the internal structure of your VB code without changing its external behavior. Use it to remove the subjectivity of what is good code and what is less-good code.
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Reading and Writing XML in .NET Version 2.0
In this series of three articles, we'll look in detail at how the new features of the XmlReader and XmlWriter classes in version 2.0 of the .NET Framework can be used to read and write XML documents, and interact with the new XML document store objects.
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Working with Partial Types
This article talks about Partial types which is one of the new feature of Micrsoft .NET Framework 2.0, this feature is available with both the languages C# 2.0 and Visual Basic 2005.
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Visits: 3195 Updated: 2005-12-9 Rating: | | |
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Passing Values between Forms in .NET 1.x with C# and VB.NET examples
I wrote this article in response to the almost overwhelming number of requests on forums on how to pass a variable from a one Windows Form to another. In fact saying that it is going between one form and another is somewhat of a misnomer because this will work for any type of object not just Forms. This seems to be one area in which beginners in C# and VB.NET often get stuck. So, rather than have to repeat myself often in forums I wrote this article so that I could point people at it so that they will have the benefit of a full explanation as well as the answer to their problem.
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