Select array elements dynamically

[abikutn]

Hello ... 

I am trying to write a program where one can select the array elements dynamically from the front panel when the VI is in run mode.

So far, IC_OpenDevice.vi gives me the various Video formats [It is a 1D array], right now I assume the last but one among this array as an example. But, I would like to design the program in such a way that the user can select any Video Format from the front panel. How do I achieve that ??

Block Diagram :

Front Panel:

[crossrulz]

Use a numeric control to pick the index you want.  I'm not sure what else you are looking for.

[altenbach]

Place the array into the "strings []" properties of e.g. a ring, then use the ring output to index into the array of video formats.  Or you could use a listbox.

(Also note that if your stop and grab buttons are latch action, their terminal should be placed into their respective event cases so they reset properly.)

[abikutn]

I tried following the same method on my program. 

However, I get the Error -2147352567 ... Below is the changes I made to my program ... 

[crossrulz · Accepted solution]

Why didn't you put the update to the video format in the event structure?  You could use the "Video Format 2":Value Change event.  Then it is all in one easy loop.

And you don't need that wait in your top loop since teh event structure will take care of your timing.

[abikutn]

Thanks for the idea. I tried putting the event change in the while loop and let the even handler control the video format input. But, when I run the VI , why do I get this error ?

[abikutn]

Thanks ! 

Figured out ... This event strucrue is really helpful stuff ...