How to call an event from simple tree menu

I have a simple tree menu that when I click on a menu item,
id like a picture or other data to appear on the right side of the
page.
Thank you in advance,
Jim

The reason why it becomes zero when you press stop is that you selected the control to get the default value in the event structure if it's not connected. You can fix it by connecting it like I did in the first picture.
To make it stop when you press the stop button you have to connect one stop button to the loop exit terminal. The reason for the sequence structure that I added is to make sure that the loop exits the first time you press the stop button, try removing it and you'll see what I mean.
You have one additional problem. You rely on the x+1 output of the sub vi as an input for the next iteration. However, that is not reliable since if you can the subvi from somewhere else it might mess up the count. You're better of using a shift register and passing in the last value to the subvi in each iteration.
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