C#

Export Excel Based on NPOI and NPOI In the previous article [query and export of big data], I mentioned how to use the NPOI component to export an Excel file. I wanted to share it with you last time, but I was very busy recently. Today I took the

View the CLR Running code and debug the clr code The SOS (Son of Strike) debugging extension allows us to view the CLR Running code during the debugging process. SOS. dll is installed along with. NET. For. NET 4.0, the position of SOS. dll is C: \

OpenXml entry --- insert images in word, openxml --- word Next we will introduce how to insert images in word. By the way, the younger brother found that the MSDN official website has a complete OpenXML tutorial. Although it is full of English, it

Differences between WCF, WebService, WPF, and Silverlight In Windows Service call Quartz.net to Implement Message scheduling, ASP. NET Web Service // WebServiceSoapClient client = new WebServiceSoapClient (new BasicHttpBinding (), new

Check whether the. NET Framework,. NET Framework Version, CLR version, and frameworkclr are installed. Check whether. NET Framework is installed.→ % SystemRoot % \ System32→ If the mscoree. dll file exists, it indicates that the. NET Framework has

C # Highlight the taskbar (the task is stopped after 3 seconds of flashing and remains highlighted)Zookeeper Today, I use C # as a communication software similar to QQ. Sometimes I don't notice the message, so I want to flash the taskbar after

C # download the HTML source code of the webpage, Public static class DownLoad_HTML{Private static int FailCount = 0; // record the number of download failures Public static string GetHtml (string url) // enter the url to download{String str =

C # Assembly series 03, referencing multiple modules, We often reference assembly in projects. Generally, an Assembly contains one module, but an assembly can also contain multiple modules. This article will show you how to reference multiple

C # drawing on controls by using GDI,   This document uses the chart control and the form to draw a rectangle as an example. The code is very simple. Some children's shoes need other source code. Please send me an email. Using System; using System.

Use the simplest example to understand Composite Pattern and compositepattern. The composite mode is very good when the tree structure is displayed. This document shows the following Department structure: In the preceding example, some nodes

Use ServiceStack to build Web Services and servicestack to build web Services When talking about building a WebService, you must first think of using WCF, because it is simple and quick. First of all, I do not know much about WCF, but want to

MyBatis. Net configuration, mybatis.net Configuration If we have such a requirement, we need to manage student information. The student table must meet the following requirements: Field name Data Type Description StuNo

How to use C # To construct a Spider Program, Spider is a very useful program on the Internet. Search engines use Spider programs to collect Web pages to databases. Enterprises use Spider programs to monitor competitor websites and track changes,

Implicit type var in C # -- Detailed Example AnalysisFrom Visual C #3.0, variables declared in the method range can have implicit type var. Implicit type can replace any type, and its specific type is inferred by the compiler according to the

Json parsing and json Parsing statusJson sj = new statusJson() { ShipmentNum = "555555", Status1 = "05", Warehouse = "SHANGHAI", Company = "AAA" };   List sjlist = new List() { new statusJson() { ShipmentNum

Function ---- Beginning Visual C #,For more articles, see my personal homepage: zhongxiewei.com. When the function transmission parameters are passed through the reference method, the syntax is different. // in cppvoid doubleVal(int &val) { // ...

Metacharacters and metacharacters 　　   What are the metacharacters of a regular expression? Character Description\ Mark the next character as a special character, an original character, or a backward reference, or an octal escape character. For

. Net platform pushes Android messages (Aurora push),. netandroid Recently done. net project (Windows Service) needs to send push messages to the Android mobile phone, it is a bit difficult, without having to do so, it will not stop searching

C #. net Common string processing methods,1. String comparisonString. ComparTo (target string)"A". ComparTo ("B ");2. Search for substringsString. IndexOf (substring, locate the actual location );String. LastIndexOf (substring); position of the last

C # common classes and methods, C # common classes and Methods 1.Data Type Conversion Function Convert. ToXXX (); XXX. Parse (); XXX. TryParse (); 2.Date-related classes and functions Obtain the current system date (including time): DateTime.