In Explorer, select the "details" view, and you can see many file attributes, the resolution of a piece, the artist of MP3, the bit rate, the resolution of a video file, and so on, sometimes it may be difficult to obtain in C #. Image is used to
The previous article mainly introduced the deployment and main code of webservice. The following describes the main program code and briefly explains it. When the main program determines whether there is an update, there is an update under the main
The NPOI component is powerful and efficient. Here we only use it to write data in Excel. If you need more content, please search for it by yourself.
IWorkbook: The workbook object, which can be instantiated by NPOI. HSSF. UserModel. HSSFWorkbook.
I believe that we often hear about processes and threads. Of course, this must be useful.
What is a process?
Books are processes. You will find that my computer runs multiple processes.
For previous single-core computers (it can only execute
Double-click a txt file to open it in notepad, because the txt file is associated with the Notepad program.
If you want to customize the file type, you can directly call your program and open it by double-clicking it? OK. First, we can find the
Literacy description
Literacy uses the IL command to generate a method delegate. In terms of performance, it is much higher than reflection when the number of calls reaches a certain level.
Of course, it takes time to generate a method using the IL
Based on the introduction in the previous two articles, I believe you will understand the practical value of MEF. We also discussed import and export in the previous article. for export and import, we will go deeper today. Well, it's just a little
(PS: Preface: Required
After reading some comments, I felt that some people were very impetuous. Even if I didn't figure out the center I described in the article, I 'd like to give you some big hats, the impetuous heart is the secret of our
In the project, you must use various ORM types, such as NH, EF, and fluent Data. However, as I have been using ORM over the past few years, as the database structure becomes more complex and custom queries become more and more popular, a problem
6. Virtual and non-virtual functions
Below is a non-virtual function
Plane { TopSpeed() { Jet : Plane { TopSpeed() { Main(= ,plane.TopSpeed());
Because TopSpeed () is a non-virtual function, the above Code will print 300. To solve this
The reference type is always mysterious because it stores the memory address. For a variable of the reference type, when you perform the value assignment operation, it is transmitted in the form of an address, when you operate on a reference type in
From the communication in the previous chapter, we found that if Tcp is used to send messages continuously, messages will be sent together, which causes some problems for programming, it may cause some problems for our information parsing. This
Because the software in charge of work involves a wide range of areas, it is very troublesome to change the software each time. The one key click that comes with Microsoft has never been very fond of. It may be partly because the key needs to be
In the first round.
First, create a department class. Assume that there are only two fields: department ID and department name.
ID { ; DeptName { ;
The following shows the UML class diagram of the Department table.
IDpartment interface,
Before reading this blog post, I hope you can read this article by Allan.
Http://www.cnblogs.com/zlgcool/archive/2008/10/12/1309616.html
When I visited the garden, I occasionally saw Allan. This article provides two dynamic compilation solutions.
I just learned about WPF and then built a small example to simulate WPF. The content is rough when new users are on the road.
This is the result after running.All my possessions for a moment of time. Date Time Weekday Go
Background code:
C # The user seems to want C # to be compiled as a local machine code like C ++. If C # can be compiled as a machine code, it can do as follows: 1. Efficiency improvement can replace C ++. 2. decompilation. Of course, Microsoft is not allowed to do
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