获取服务器套接字C＃中的客户端数据

Question

I set a socket server in c# and im trying to make a program that will show users in current room, their username, their color, etc... I want the server to send to the client all the users who connected to room number 2 and has a red color. If this code was written in mysql, I would do something like that:

SELECT * FROM Clients WHERE Room = '2' AND Color = 'red'

but this is ac# code. not SQL. any help? :)

Answer 1

I think this is what you need:

var color = "Red";
var room = "2";
var myQUery= from client in dbContext.Clients 
                      where client.Room = room && client.Color = color
                      select client;

You need to follow this tutorial to add linq to sql into your library/project: https://msdn.microsoft.com/en-us/library/bb384428.aspx

Edit: I've included current solution based on the fact that the author is very familiar with SQL syntax.

Answer 2

I personally prefer lambda expressions to query expressions. I would suggest using some like the following:

public IEnumerable<User> getUsers(string color, int room)
{
    IEnumerable<User> users = dbContext.Where(x => x.Room == room && x.Color == color);
    return users;
}

There are plenty of LINQ tutorials out there.