Question

For some reason my event is throwing a null error. I don’t see anything wrong.

here is the event

public delegate void connectionSuccess(bool success);
public event connectionSuccess Connection;

then in a function i have this witch throws the null error

Connection(true);

Edit* function in another class that calls the connection function

Server.Connection += onConnection;
Server.startConnection();

Answer 1

If it is not connected, it is null.

Try this instead:

var h = Connection;
if ( h!=null )
{
     h(true);
}

I’m assigning to a (local) variable first in order to overcome multi-threading scenarios where there are modifications between checking for null and calling.

I.e. the following would not be thread-safe:

if ( Connection!=null )
{
    Connection(true);  // Here, could already be null, again.
}