Cant register event listeners

[calebheale]

I have a tk2dUIUpDownButton script as a component on a game object that I would like to use as a button.
I have a second script to write my event handlers also as a component on the same game object
I am trying to access the uiItem to reference the events
In OnEnable for my custom script I am trying to access uiItem using the following:
tk2dUIItem ui = GetComponent<tk2dUIUpDownButton>().uiItem;

I get a null reference exception when trying to register my event handlers.

What am I doing wrong?

[unikronsoftware]

tk2dUIUpDownButton needs a UIItem to work. I suggest looking at the ui demo prefabs to see how they're wired up, or just base your design off one of the prefabs.

[calebheale]

Thank you. That is exactly what I was missing. And yes, looking at the prefabs helped make a lot more sense of it.