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
Some users have asked if the [idea-. NET Framework 3.5 Data Development Guide] has the VB. NET version,
This depends on the publishing house. Generally, if a review is not completed, it is unlikely that the publishing house will invest in data for publishing.
For the same subject, but for different languages, there will be no
Before giving you a detailed introduction to the VB. NET thread, first let everyone know about the thread, and then give a comprehensive introduction to the VB. NET thread method. A thread is the basic unit for the operating system to allocate a processor time. A thread can run multiple activities at the same time as a
As a loyal C # fan, VB. NET is rarely used for writing.Code. C # The meaning of several symbols can be expressed. In VB. NET, a lot of words are often needed to express the meaning (in another perspective, this may also be an advantage in the eyes of others ). Maybe the C/C ++/C # code is too much to read. Check
VB. NET language learning, relative to the original increase in the. NET platform, but also based on the VB learning of the inheritance and extension, is in the object-oriented programming language, VB-learned control statements, basic data types, object events, methods, att
Difference between VB. NET and C # syntax,
After learning VB. NET, we found that the syntax of VB. NET and C # is mainly different in two parts. If the two parts are completed, they can be easily solved. The comparison is summariz
Grammar one: Try ..... Catch.........finally.........end Try Catch Error
Put a possible error statement behind a try and, if an error occurs, execute a Catch statement,
Catch can have multiple, first catch cannot catch error, will be next catch statement
Captured. After all the processing is complete, the finally statement is executed.
You can use catch with one of the finally two in a try.........end try procedure
One, or two together,
Two: Protected, private, public package control
T
Statement one: Try ..... Catch.........finally.........end Try Catch Error
Put a possible error statement behind a try, and, if an error occurs, execute a Catch statement, the catch can have multiple, and the first catch cannot catch an error that will be captured by the next catch statement. After all the processing is complete, the finally statement is executed.
You can use catch with one of the finally two in a try.........end try process, or two one at a
Two: Protected, private, public
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
On the Internet or on the forum, we will always see such a phenomenon. Is VB.net promising or C # Good? One after another. Calm down and think about it. Is this debate necessary? What is the positive significance? No. This argument shows that talented people with low IQ do the work.
For. net, I don't need to introduce it any more. If I don't know anything about it, I 'd like to say "Baidu" or "google". There must be a very detailed introduction!
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
instance in the module.The partial keyword can be used to extend the functionality of My.Application or My.Computer. The corresponding classes are MyApplication and MyComputer respectively.Use My.Application in C # to use My.Application, you must inherit System.Windows.Forms.WindowsFormsApplicationBase (This class is located in Microsoft.VisualBasic.dll). After inheritance we do a few things, first write the constructor initializes the MyApplication class, in Visual Basic these settings are IDE
After a long period of development, VB. NET has become very familiar to many users. Here I will share my personal understanding and discuss it with you. In VB. net should use VB. for the netformat function, both CINT and clng can only obtain the integer part, whereas
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
Because. NET provides a variety of development languages, such as C #, VB.. net, J #, etc. Developers usually only choose one of them for daily use and rarely use them together, except for Nb characters.It is essential to develop programs for reference. net implementation, if you directly look at
Online tools -- set C #CodeConvert to VB. NET code
Many of my friends often encounter VB. NET code when looking for information on the Internet, but only the C # code.
You cannot change it yourself!
I accidentally found an online tool for ease of use.
Supported: C # ---> VB
Vb. NET and C # belong to the high-level language, the support of the bits operation is not very good, such as no shift operation, such as the use of the time is indeed very inconvenient, so in the leisure I have a new encapsulation for C #, VB. Net of the bit Operation class Library, through this class library can rea
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