Next, let's take a look at sqlhelper.
1. UML diagram 2, three-tier architecture 3, sqlhelper 4, Configuration File 5, interface 6, design mode
I want to begin by saying, in fact, I have successively published several articles about "VB. net
Let's talk about this sqlhelper today. When I used the three-tier Data Center charging system for the first time, I didn't use sqlhelper at all, nor did I know what
Visual Basic started with a project codenamed "lightning", and by 1990s it swept the programming world. Now that Visual Basic has been released for 10 years, an innovative version called Visual Basic. net has been pushed to the stage of history to innovate the next generation of application development.
Remember the first phase of basicpro, the predecessor of vbpj, I wrote my own article about the basic language "Gates on basic's future" (basicpro 199
Grasp the Stream in VB. NET (2)
Flexible and diverse
IO
OperationSometimes conversion between data and byte arrays is cumbersome. To avoid these boring conversions and simplified code, it is wise to use streamreader/streamwrite and binaryreader/binarywriter. Streamreader and streamwrite are derived from the textreader and textwriter classes respectively, and are automatically converted to Byte encoding. Bi
name is clear at a glance, you do not need to use the document to explain the functions of the method; 4 the curly arc needs to have an independent line, not like if, for, etc., which can be the same line as the brackets; 5. Fill in a space before and after each operator and bracket. 6. Use C # Or VB.. net, rather than the alias type defined in the system namespace. For example, the solution is int age; st
Resource names are case-sensitive, even in non-sensitive languages such as vb. In addition to images, you can also easily embed text-based files, such as xml, js, and SQLUse resource filesThis is another way to use resources in. net, which is simpler in some scenarios. In addition, vs provides convenient use methods.Use resources in non-vs modeIn. net, resourc
One: Why Choose C #Everyone has a dream, some people's dream is: Become a programmer. The best course (www.zuikc.com), "0 basic C # Primer", is an attempt to help us achieve this dream.Perhaps you want to ask: I base very poor how to do? The top 0 Basic C # Primer assumes that you have never written a single line of programs. Of course, we also believe that this series of study for the university undergraduate computer, but the beginning of the progra
SQLite and nhib.pdf are used in. net programs.
Author: Finan
1. Discard access
I once made a program in VB. For the sake of simplicity, I used a shared directory to access the database from multiple machines. In the end, I found this was a nightmare. The program could not run normally and I had to use MySQL.
Recently, I made a single-host desktop program and
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