Error message when sending an email using system. net. Mail
The configuration example is as follows:
Configuration error and prompt information:
Smtpserver error:
Unable to connect to the remote server
Port error:
Unable to
This article will explain in detail how C # implements network communication between parallel hosts through socket programming. It is a very good blog. Let's take a look at it.InProgramIn the design, whether it is B/S or C/S mode when it involves
Differences between socket and tcplistener, tcpclient, and udpclient
Abstract: applications can use the Transmission Control Protocol (TCP) and user data packet protocol (UDP) services through tcpclient, tcplistener, and udpclient
Applications can use the Transmission Control Protocol (TCP) and user data packet protocol (UDP) services through tcpclient, tcplistener, and udpclient. These protocol classes are based on the system. net. sockets. Socket class, responsible for data
This exampleProgramIt is a synchronous socket program. Its function is very simple. It only sends a message from the client to the server, and the server returns a message to the client. Here is just a simple example. It is the most basic socket
Use SOCKET directly as the client and UDP
ClientCode:
DEMO code Using System; Using System. Collections. Generic; Using System. LINQ; Using System. text; Using System. net. Sockets; Using Tcplabcommon; Using System. net; Namespace Udplabclient1
Server code
[C-sharp]
View plaincopy
Using system;
Using system. Collections. Generic;
Using system. text;
Using system. net;
Using system. net. Sockets;
Using system. Threading;
Namespace TCP Communication
{
Class Program
{
Static void
Http://blog.csdn.net/itfly8/archive/2006/03/13/622877.aspx
Basic socket programming
Server:
Using system. net;
Using system. net. Sockets;
Using system. text;
Using system. Threading;
Thread mythread;
Socket socket;
// Clear all resources in
Managed extensibility framework (MEF) is launched under the Microsoft. NET Framework to improve the reusability of applications and components, and is used to maximize the reuse of components. Use MEF to enable statically compiled. Net
C #. Net synchronous asynchronous socket communication and multithreading Summary
Source: http://www.cnblogs.com/Silverlight_Team/archive/2009/03/13/1411136.html
Synchronous socket communication
Point-to-point online communication supported by
Code 1: using system; using system. data; using system. web. ui; using system. data. oracleclient; using dbutility; using system. text. regularexpressions; using system. net; using system. net. mail; using system. XML; using system. net. mime; using
The demo is divided into two parts. The first part is the server, and the second part is the client.
First, the server sideCode:
Using system; using system. collections. generic; using system. componentmodel; using system. data; using system.
Socket-based client and server chatbots and socket chatbots
The server code is as follows:
Using System;Using System. Net;Using System. Net. Sockets;Using System. Text;Using System. Threading;Using System. Windows. Forms;
Namespace Client{Public
C # Socket network programming,
I'm a newbie and have never written a blog before. I hope you don't need to spray it,
When writing a Socket, You need to importSystem. Net. SocketNamespace. Using this class, we can directly write the Socket Client
1. Basic TransferFiles, required by both client and server
using System;using System.Collections.Generic;using System.Text;using System.Net;using System.Net.Sockets;using System.Windows.Forms;namespace Server{ public class TransferFiles {
I wrote a blog for writing. No matter the quality, I had to clean it up.
I feel so sad to myself. I have never done online games before I went out for an internship, and I almost didn't use socket. So now I have nothing to do at school. I have to
I won't talk much about the UDP principle. I can find a lot on the Internet. Programs are divided into clients and servers. Function: the server receives and displays data from the client.
1. Client
The interface is as follows:
Control names:
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