vb net tutorial

versions, multithreading is rarely involved. This is because VB is NOT thread-safe. The working principle and programming mechanism of multithreading mode are not fully suitable for VB. In VB6.0 applications, we can use Win32 createthread API to create a multi-threaded application, or create a component in an independent thread by deceiving the com library, however, these technologies are difficult to debu

methods are automatically static (or called Shared--vb. NET keywords are shared), these methods can be called directly, so module is not instantiated, there is no need to instantiate the module can not inherit, and cannot implement the interface module may have classes, but in fact, this class does not need to really through the module as a prefix to reference. So the module is a bit virtual concept module

The array was discovered today in the process of writing a program. NET is a strange phenomenon, that is, to the array to assign value to the array is actually "point to the address of the array", that is, the array assignment to the array is not generated after a new value to the array to save, but instead to the array address to the array. For example: There are arrays A and B. Now assign array b to array a. While array A does not hold the value of

Programming avoids null propagation (propagation) Previous versions of VB support null propagation. Null propagation is provided that null values are used in the table In the formula, the result of the expression will be null, such as the following example, and the result V will be null Dim V V = 1 + Null V = Null + right$ ("Sometext", 1) V = Right ("Sometext", 0) Null propagation will no longer be supported in Visual Basic.NET. Like the statement a

Tray program refers to a kind of program: when the program is run, will be in the system tray area (also said to be the status area) to create this program icon, users can click on the menu icon appears to control the operation of the state. Pallet programs have many advantages, such as not taking up the screen, running in the background, easy to control and so on. So now more and more programs are made of the tray program. In vb.net, it is more convenient and simple to write a pallet program. T

In our daily work, we often need to convert Excel documents into PDF documents. Are you in distress how to C #, VB. NET programming how to convert an Excel document to a PDF document? Do you look up a lot of data, use a lot of code, but the effect is still not ideal after the conversion? Don't worry, this article will introduce a good way to convert, without the need to use a lot of code, but also to guaran

When people who are new to. NET are faced with the language they choose, they often ask C # and VB. NET which is better? Which is faster? In essence, any programming languages supported by. NET are eventually translated into il code, and their operating mechanisms are the same. In this way, it seems that all languages

ASP. NET Razor-C # and VB code syntax, asp. netrazorC # Main Razor syntax rules Razor code is encapsulated in @ {...} In-row expressions (variables and functions) start @ The Code statement ends with a semicolon String surrounded by quotation marks C # code is case sensitive C # the file extension is. cshtml. C # instance Running instances Main Razor syntax rules of

A lot of people may encounter a problem when looking for related materials on the Internet: [I am studying VB.. net, C # program cannot understand.] Or [I want to learn C #, but I cannot understand the content of VB. NET plugin .] In fact, this is a pity, because you are not familiar with C # Or

Vb. NET is an object-oriented programming language based on the. NET Framework. Can be seen as an upgraded version of Visual Basic on the. Net framework platform, enhancing object-oriented support. Vb. NET needs to be executed on