C#

1. Split intercept according to a single separator characterString st= "Gt123_1"; string[] Sarray=st.split ('_');Output: sarray[0]= "GT123", sarray[1]= "1".2. Use multiple characters to separate stringsString str = "gtazb_jiangjben_123"; string[]

Parse and TryParse The Parse(string s) and TryParse(string s, out datetime) in DateTime are used to convert the date time of the character type to an equivalent system.datetime. So, there is no difference between them, except the parameters of the

Reflections and properties The. NET Framework provides reflection and feature technology that can be used to check data repeatability to determine whether a piece of data is written to a database table. Demand When an entity writes a data to a

In the previous section, when we introduced the data structure of array, we said that it was static, the number of elements per dimension was compiled, and it was uniquely determined, and its type was strongly typed.So, in this section, we'll talk

This article mainly introduces the related knowledge of delegate, event and asynchronous in C #. Has a good reference value. Let's take a look at the little series. It has been almost a year since I first approached C # programming. In the course

This article mainly introduces the comments in C # related knowledge, has a good reference value, followed by a small series to see it Comments, which are "descriptive text" in the code. The annotations themselves are not involved in compiling and

This article mainly introduces the basic knowledge of C #-the key word of the relevant knowledge, has a good reference value, followed by a small series to see it Example: Using system;using system.collections.generic;using System.text;namespace

This paper mainly introduces the algorithm in C #: The related knowledge of exchange, it has good reference value. Let's take a look at the little series. Swapping the values of 2 variables is like swapping drinks from two cups: a glass full of

There is a lot of convenience in using a ClickOnce deployment program, and you can save a lot of effort to study the main business without having to design the upgrade program individually. However, there are a number of problems with ClickOnce

In the past, the development program software, basically is the use of a development language, either C #, either Java, or Delphi and the like. Recently saw some C # multi-project integration into a solution to develop the way, I think this is a

To describe the problem clearly, let's look at an example first. In this example, WinForm has a button that, when clicked on by the user, loads an already existing assembly and displays the Assembly fullname on the label control of the interface. To

The following small series to bring you a C # in the serialization of the implementation of deep copy, the implementation of DataGridView initialization Refresh method. Small series feel very good, now share to everyone, also for everyone to make a

The following small series for everyone to bring a C # implementation child window close the parent window is also closed a simple instance. Small series feel very good, now share to everyone, also for everyone to make a reference. Let's take a look

C # File Upload class, file stream, byte array, etc, Using System;Using System. IO;Using System. Web;Using System. Web. UI. WebControls; Namespace DotNet. Utilities{/// /// File Upload class/// Public class FileUp{Public FileUp (){} /// /// Convert

Asynchronous programming, c # asynchronous programmingI. threads 1.1 main thread . Net uses the main () method as the entry point of the program. When this method is called, the main thread is created. 1.2 worker threads A thread created by the main

[Reading Notes] C # advanced programming Chapter 4 inheritance, (1) inherited types 1. Implement inheritance and interface inheritance In object-oriented programming, there are two completely different inheritance types: Implementation inheritance

Serialization | Iot framework ServerSuperIO tutorial-16.OPC Server usage steps. Appendix: Release and version update instructions ., Iot framework 1. C # Introduction to cross-platform Iot communication framework ServerSuperIO (SSIO) Serialization |

C # object transfer methods between processes, 1. Origin The underlying reconstruction and upgrade of KV project download determine to use an independent process for Media download, so as to achieve the purpose of reusing modules. Therefore, data

HttpWebRequest: The resolution problem record of chunked in http1.1, and webrequest asynchronous request Problem: My request cannot get the content corresponding to the URL (another browser can be used ).   The first step is to compare the wirshark

First recognized inheritance and polymorphism, first recognized inheritance Polymorphism What is inheritance? Inheritance uses existing class definitions as the basis to create new class technologies. New class definitions can add new data or