I have never studied how other forums and other programs enable syntax highlighting. Some may use regular expressions. Regular Expressions are easy to understand. Different regular expressions are required for keywords, comments, and strings, each
When I got off work yesterday afternoon, I accidentally heard two colleagues in the company discuss the performance optimization problem of batch data insertion into the database. I suddenly came to an interest and told them my thoughts, so with
Datatable to string
Public static string DataTableToString (DataTable dt){//! @ &, # $ %, ^ & * Is the concatenation string of the field// To prevent the connection string from being present in the able data, write the concatenated string as a
System. collections. sortedList class, System. collections. generic. sortedList generic class and System. collections. generic. sortedDictionary generic classes are similar to Hashtable and Dictionary generic classes because they also implement the
Recently, I was working on a project and found that the class provided by Mysql to C # operations is not very easy to use, so I tried to write a convenient Mysql Data Layer class.
For example, a query was previously executed.Code public DataSet
Let's look at it first.Hashtable.
MSDN: a set of key/value pairs. These key/value pairs are organized according to the hash code of the key.
The Hash algorithm converts any-length input (also called pre- ing and pre-image) into fixed-length output
For the insertion and update of massive data, ADO. NET is indeed inferior to JDBC, and JDBC has a unified model for batch operations.Very convenient:PreparedStatement ps = conn. prepareStatement ("insert or update arg1, args2 ....");Then you canFor (
In daily development, reflection is frequently used, except for the most "heavy" original Reflection Method (not described here) and the 4.0 keyword dynamic, there are many other methods (Emit and Linq ). In the next demonstration, I will focus on
The. NET Framework class library does not provide the corresponding classes for reading and writing INI files. However, you can use WinAPI to read and write INI files. The code is very simple. As follows:
First, there are two API functions
Recently I made a small program, some of which use C ++ and some use C #. The two programs need to call each other. Both programs have interfaces. I have never called C # And C ++ in the past. Although C # Can call C ++ DLL, I am not familiar with
I,Environment Settings
First, remove the following options in the VS development environment:
Adjust indentation when pasting
Place the left braces of the type in the new line
Place the left braces of the method in the new line.
Place the left
The most common method for Operating Files in C # Classic is as follows: C # append, copy, delete, move a file, create a directory, recursively delete a folder and a file, copy all the content under a specified folder to the target folder, and
The Code provided in this article is C # code for converting Chinese characters into pinyin abbreviations. It is also a web page development. The specific implementation is as follows:Using System;Using System. Collections. Generic;Using System.
1. approximate model of remote database access
2. How to Set mysql on Windows 7 and linux:
2.1. Assign permissions (linux and win7)
Execute the mysql command line to assign permissions and execute
Code highlighting produced by Actipro
Bubble Sorting
I used C # To develop a Bubble Sorting Algorithm. Hope to bring some benefits to learners of C # language. Don't forget, it takes a lot of effort to learn data structures and algorithms to learn languages.
Using System;Namespace
SQLDMO (SQL Distributed Management Objects, SQL Distributed Management object) encapsulates Objects in the Microsoft SQL Server database. SQLDMO is the application interface used by the enterprise manager in Microsoft SQL Server. Therefore, it can
C # compile the full screen display method code for Windows Mobile window as follows:Full Screen:This. WindowState = System. Windows. Forms. FormWindowState. Maximized;This. Menu = null; // if it is not set to null, the Menu at the bottom is still
When starting a program, we want the position displayed in the window to be in the center of the screen. You can set it as follows:
MainFormmainForm = newMainForm ();
MainForm. StartPosition = FormStartPosition. CenterScreen;
MainForm. Show ();
If
During system development, system configuration parameters are often stored in XML files. The advantage is that you do not need to read the database when calling parameters, in addition, the system parameter cache can be used to set file
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