Sharing data between two applications

Question

like this

public class MyClass { 
  public static instance = new MyClass();
 private List<int> idList; 
}

. I am using this class in two different window application. like this MyClass.instance.IdList.Add(1); All data in idList i am storing in file and fetching info from that file. I am adding value to idList in one app and I am fetching idList info in another app. but it is not showing idList content in second application which is added by first apllication. How to achive this?

Answer 1

Here are a few ways to share data between applications:

WCF would be my preferred way to do this and I will add some explanation here

1) Use of WCF - Host a WCF service with following functionality [Effort: Moderate]

//Notice the use of Publisher -Subscriber pattern here (each app will subscribe to the service, the service could be hosted by all apps at certain endpoint i.e. net.pipe://localhost/NotificationService (Since multiple applications will try to host the same service only one would succeed and that's exactly what we want)

void Subscribe(object);
void Unsubscribe(object);

// Any client wanting to add an object to the list will call Add

void Add(object objectToAdd);

// Iterate through each subscribing app and send a notification that list changed

void Notify();

// Return the current state of list

IEnumerable<object> GetYourList();

2) Use of Clipboard [Effort: Simple]

3) Use of File system & listening to the file change notification [Effort: Simple]

4) Memory Mapped Files [Effort: Simple-Moderate]