Connect to server button

Hello everybody,

i made a button in the main menu which will connect you to an official server when my modpack is released. The button works (i had a sysoutprint with some text when you clicked it) the only thing left for me to do is add the functionality that the player gets connected to the server. I digged through  the vanilla code and found this method:

net.minecraftforge.fml.client.FMLClientHandler.instance().connectToServer(GUI, new ServerData(stringName, stringIP, boolIsLan));

i dont know if this is the correct one, i tried to use it like this:

net.minecraftforge.fml.client.FMLClientHandler.instance().connectToServer(event.getGui(), new ServerData("server1", "192.168.2.1:25565", false));

but that didnt do anything(didnt make it crash either).

Do i have the correct method, if i dont which one should i be using. If i have the correct method what am i doing wrong?

Thank you for your time, Alex  Schopbarteld