C# Program to Implement UDP
Posted by Superadmin on August 12 2022 04:54:06

C# Program to Implement UDP

This C# Program Implements UDP. Here name of the employee is entered in the client side window and the job the specified employee is displayed.

Here is source code of the C# Program to Implement UDP. The C# program is successfully compiled and executed with Microsoft Visual Studio. The program output is also shown below.

```
/*
```
```
 * C# Program to Implement UDP
```
```
 */
```
```
 
```
```
//SERVER SIDE PROGRAM
```
```
 
```
```
using System;
```
```
using System.Net;
```
```
using System.Net.Sockets;
```
```
using System.Text;
```
```
using System.Configuration;
```
```
 
```
```
class EmployeeUDPServer
```
```
{
```
```
    public static void Main()
```
```
    {
```

        UdpClient udpc = new UdpClient(2055);

        Console.WriteLine("Server started, servicing on port 2055");

```
        IPEndPoint ep = null;
```
```
        while (true)
```
```
        {
```

            byte[] rdata = udpc.Receive(ref ep);

            string name = Encoding.ASCII.GetString(rdata);

            string job = ConfigurationSettings.AppSettings[name];

            if (job == null) job = "No such employee";

            byte[] sdata = Encoding.ASCII.GetBytes(job);

            udpc.Send(sdata, sdata.Length, ep);

```
        }
```
```
    }
```
```
}//XML CODING
```
```
 
```
```
<?xml version="1.0" encoding="utf-8" ?>
```
```
<configuration>
```
```
  <appSettings>
```

    <add key = "mickey" value="manager"/>

```
    <add key = "bob" value="tester"/>
```
```
    <add key = "tom" value="clerk"/>
```

    <add key = "jerry" value="manager"/>

```
  </appSettings>
```
```
</configuration>
```
```
 
```
```
//CLIENT SIDE PROGRAM
```
```
 
```
```
using System;
```
```
using System.Net;
```
```
using System.Net.Sockets;
```
```
using System.Text;
```
```
class EmployeeUDPClient
```
```
{
```

    public static void Main(string[] args)

```
    {
```

        UdpClient udpc = new UdpClient("Win7-PC", 2055);

```
        IPEndPoint ep = null;
```
```
        while (true)
```
```
        {
```
```
            Console.Write("Name: ");
```

            string name = Console.ReadLine();

```
            if (name == "") break;
```

            byte[] sdata = Encoding.ASCII.GetBytes(name);

            udpc.Send(sdata, sdata.Length);

            byte[] rdata = udpc.Receive(ref ep);

            string job = Encoding.ASCII.GetString(rdata);

```
            Console.WriteLine(job);
```
```
        }
```
```
    }
```
```
}
```

Here is the output of the C# Program:
output