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C: \ ProgramFiles \ microsoftvisual studio. Net \ frameworksdk \ samples \ technologies \ InterOP \ platforminvoke \ winapis \ CS directory contains a large number of examples of calling APIs. I. Call format Using system. runtime.

In the previous articleArticle. In this article, I will introduce how to use C # To read and write text files.   The computer initially only supports ASCII encoding, but later it introduced the Unicode Character Set to support characters (such

  ------------   Public datatable readexceltotable (string filepath){String excelfilepath = server. mappath ("Excel/excel.xls ");Excel. Application myexcel = new excel. applicationclass ();Excel. workbooks mybooks = myexcel. application.

Paging from jykCodeTo make a memo.   Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> # Region Full-width half-width conversion ///   /// SBC case Function) ///  

Secrets of Enum : Enum is a "user-defined type" Haha, Enum is rarely used in practice, so you will ignore it. However, here, I tell you that Enum is of the same user-defined type as struct and class.Yes! Enum is a user-defined type. It has data

The functions of these three functions are consistent. They are used to obtain file-related information, but applied to different file objects. If the pathname parameter is provided in the function, the stat function returns the information

Original http://msdn2.microsoft.com/en-us/library/bb397687.aspx Zhu zhiguang (larry1zhu@gmail.com)   1.LambdaIntroduction A Lambda expression is an anonymous function that contains several expressions and statements. Can be used to create a

This article focuses on multiple commonC #,. NetClassic interview questionsFor example, "What are the differences between classes and structures in. Net" and "How many methods are used to pass values between ASP. NET pages ?", The answer is concise

[Controlbuilder (typeof (textboxcontrolbuilder), defaultproperty ("text"), parsechildren (false), databindinghandler ("system. web. UI. design. textdatabindinghandler, system. design, version = 1.0.5000.0, culture = neutral, publickeytoken =

Method 1: Disable USB by modifying the Registry   Principle:You only need to change the start value in the HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Services \ usbstor path to 4 to disable USB (3 by default ). Advantages:Easy to use.

I accidentally thought it was the limitation of the previous Windows Control. I checked that msdn was actually restricted by C # (. NET. " Attribute Value Type: System..::.Int32 The number of characters that can be entered in the text box

When using cookies today, you may encounter some problems: One is that the cookie always displays garbled characters when reading the content: I have never understood why it is like this. Later I want to use the server. urlencode encodes the content

Directory   1. Classes used   2. Obtain the IP address of the local host   3. Remote Query   4. Scan network segments     --------------------------------------------------------------------------------   Body   1.

I retrieve some column information from dataset, use a field to determine whether there is a corresponding label control on the webpage, and then assign the field data to the label control. // Cyclically obtain the label on the webpageIf (Ds.

Analysis Reflection technology can be obtained at runtimeProgramSet members of each type, including fields, methods, attributes, and events, and further obtain detailed information about these members. Reflection technology can also dynamically

I have previously written a Chinese character conversion using SQL stored procedures and triggers. Address: http://www.cnblogs.com/Capricornus/archive/2010/02/08/1665783.html In fact, this can also be done in C.   Code Code highlighting

1. DateTime numeric type System. DateTime currentTime = new System. DateTime (); 1.1 take the current year, month, day, hour, minute, second CurrentTime = System. DateTime. Now; 1.2 get current year Int Year = currentTime. Year; 1.3 take the

[Exercise for 4-1]0.0000; The while LOOP statement cannot be used. Yes; the number of cycles is reduced.[Practice 4-2]Not changed. 0.00; if the negative number does not meet the conditions of the loop statement, the statement jumps out.[Exercise 4-3]

I recorded my notes during my learning process. I just shared my notes so that many people who are just learning. net programming can quickly learn C #. Managed code, unmanaged code (1) Any code generated by. net that requires the CLR to run is

// C # control the printer (directly send the printer command to the printer) // A printer control class, which is very useful. It uses windows api to control the lpt port. The method for controlling the bar code printer is as follows: Write the