C#

public static bool Sendmailuse (){String host = "smtp.163.com";//mail server smtp.163.com means NetEase mailbox serverString userName = "[e-mail protected]";//Sender Accountstring password = "a96606";//send-side password (password after this client

VS. NET (C #) Database Interface C # DataTableMaooing class usage, vs.net We can see that the default Table is Table, Table1, Table2, and so on. It is unfriendly to the customer. For example: We can use the DataTableMaooing class to perform a

C # control introduction, TextBox txtProperty: Member:. Text // obtain the input stringDataGridViewProperty: AutoSizeColumnsMode: Fill Member:. DataSource // receives a DataTable to display the Query InformationComboBox (drop-down box) cboProperty:

C # Use Spring. NET to implement IOC control inversion and DI dependency injection (Code tutorial ), Import Common. Logging, Spring. Core Create user information business interface class: IUserInfoService. cs using System;using

VS. NET (C #) Database Interface C # DataSet object access demonstration (code case), vs.net Based on the above section, output the data of the two tables created in the DataSet object to the page. Achieve the following results: Click "Access

VS. NET (C #) Database Interface: Command object introduction, vs.net The Connection object connects the external data source and does not provide any operations on the external data source. The Command object encapsulates all operations on

VS. NET (C #) Database Interface: common attributes and methods of SqlCommand objects, vs.net Common attributes Attribute Description CommandText The return type is string. Obtain or set the SQL statement, stored procedure,

C # a preliminary understanding of the System. Net class, The System. Net namespace provides simple programming interfaces for various protocols used on the current network. The WebRequest and WebResponse classes form the basis of the so-called

C # how to add the WinFrom ErrorProvider Control, C # how to add the WinFrom ErrorProvider Control Using System; Using System. Collections. Generic; Using System. ComponentModel; Using System. Data; Using System. Drawing; Using System. Linq; Using

C # examples of judgment and loop statements,Judgment A condition is an operation that determines whether the condition is true or not false!If Syntax: If (bool_expression) {statement (s)} // experssion executes else {statement (s)} // experssion as

C # enumeration to string method tutorial, c # enumeration string tutorial Sometimes we need to convert enumerations to strings. How can we convert enumerations to strings?Enumerated to string If you want to convert enumeration to a string, you can

C # Reading and modifying configuration files (Code tutorial ),Preface Configuration files are used in many cases. configuration files are divided into two types: application configuration files and web configuration files, the maximum two

C # How to sign a PDF file, If you can sign a pdf file and search for it online, iText is free of charge, but AGPL is free of charge. Of course, it also has a commercial agreement, iText is now available in version 5 and 7. Here I use version

C #. NET Transaction mechanism example, . NET Transaction mechanism When it comes to the transaction mechanism, for example, when we import orders, Several SQL commands may be linked. However, if the middle part of the data has a problem one day,

C # code implementation on the welcome page of the form, Call WYL. orderWater. serverSide. splashScreen. splasher. show (typeof (WYL. orderWater. serverSide. splashScreen. frmSplash); System. threading. thread. sleep (1, 800); System. threading.

With the help of System. Linq. Dynamic, IQueryable sorts sorted strings, When using Entity Framework, if there are multiple sorts, OrderBy (OrderByDescending) and ThenBy (ThenByDescending) are required) If you want to sort by Name in ascending

C # programming: Use of controls and Ajax communication code instances,Hide controls Control front-end display, selection box API type basic data single entity multi-entity business data * description: select the business connection type

C # character conversion, value assignment, Relational operators, logical operators, bitwise operations, and type conversion,I. Conversion of Characters Corresponding ASCALL Value 0-48 A-65 A-97 Example charch = 'a '; Console. WriteLine (int) ch); //

Scan the code locally for test and scan First, you must have a local network. Run the "cmd" command: Enter "ipconfig ": Get your own IP Address Configure the project to be tested in iis Index. aspx is the homepage, that is, the QR code

Producer consumer C # Concurrent Design Based on blocking queue, This is summarized from the preceding . If you don't want to mention it, You can directly provide the code and add comments, for the original code, see , I changed it to a suitable