C#

[Csharp] using System;Using System. Collections. Generic;Using System. Linq;Using System. Text;Using System. Threading;Using System. Runtime. Remoting. Messaging; Namespace ConsoleApplication1{Public delegate int AddHandler (int a, int B );Public

Use the operator keyword to overload the built-in operators, or provide user-defined conversions in the class or structure declaration.In C #, operators are all static methods. The return value indicates the operation result, and its parameter is

This article collects some problems and solutions encountered during unit testing for your reference.How do I check whether the returned collection class meets the expectation? Microsoft UnitTestFramework Use CollectionAssert.

Some data classes are very commonly used in development, so many compilers allow the code to operate on them with simplified syntax. For example, you can use the following syntax to assign an integer: System.Int32 a = new System.Int32(); 　　 int a = 0

The model is often used in c # programming, and the list is often used to store entity sets. Therefore, various list operations are designed, and list sorting and searching are common, comparison, deduplication. In general, if you want to repeat the

Background The INI file was used as the configuration file of the program. I think this structure is simple and easy to configure. Then, you can use WindowsAPI to find a help Class Based on WindowsAPI encapsulation on the Internet. I thought I could

Data structures and algorithms (C # implementation) series --- tree (III) Heavenkiller (original)   // Overwrite Object. Equals () --- reference type realization Public override bool Equals (object _ obj) { If (_ obj = null) Return false; // this

Use C # To create a screen capture program (2)In this way, the basic principles have been introduced. In general, the implementation principle is relatively simple. The following describes how to implement an instance:1. Obtain a graphical object

When you switch to ADO. NET, you will need to know how to deal with the scenarios that previously known to be handled with ADO. NET, but now must be solved with ADO. NET. Just as the N-layer solution developed using Visual Basic, C ++, and ASP often

You should be familiar with Try catch finally. The methods you may use may be as follows: Try catch (you can match multiple catch)   Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->Try { } Catch

The FileStream object indicates the stream that points to the file on the disk or network path. This class provides methods to read and write bytes in files. However, StreamReader or StreamWriter is often used to perform these functions. This is

In SQL Server, many people concatenate SQL statements by repeating the excel data read by oledb. This is not only error-prone but also inefficient. The best way is to use bcp, that is, System. data. sqlClient. sqlBulkCopy class. Not only is the

1. Separated by strings:Using System. Text. RegularExpressions;String str = "aaajsbbbjsccc ";String [] sArray = Regex. Split (str, "js", RegexOptions. IgnoreCase );Foreach (string I in sArray) Response. Write (I. ToString () + " ");Output

In fact, the pdm file of PowerDesigner is an xml file. We can read the pdm file in the same way as reading the xml file. Note: if you do not use the namespace manager, the system will prompt the following error: The namespace manager or

The code used to control the CPU usage through C ++ in the previous section to display the sine curve is rewritten with C #, which is better. Connection in the previous section: http://www.bkjia.com/kf/201110/107759.html   C # code:  Using

  1. Preparations   Sqlite3.exe: http://www.sqlite.org/download.html downloading "sqlite-shell-win32-x86-   3070800. zip "is OK For Precompiled Binaries For Windows   Sqlite-shell-win32-x86-3070800.zip (248.28 KiB)         System. data. sqlite. dll:

Sometimes we only need to allow one instance of the application to run. When the process starts, if an instance of the application is found to be running, it will automatically stop running. We usually use Mutex in the Main function. The general

Roll back a single failed operation in a continuous transaction and disable all failure message boxes (including warnings and errors) Problem I tried to implement a failed handler function: Disable all warning message boxes and revoke the actions

Using System;Using System. Collections. Generic;Using System. Linq;Using System. Text; Namespace if statement{Class Program{Static void Main (string [] args){ // If Michael's score is greater than 90, his father will reward him with 100

Enum provides a base class for enumeration. The base type can be any integer except Char. If the basic type is not explicitly declared, Int32 is used. Programming Languages generally provide syntax to declare an enumeration consisting of a group of