creating an array with dynamic size

[Canucks.canucks]

I'm wondering how to do this in labview.I can't find a tutorial. If user enters a number lets say 7, then press a button then array with size of 7 is created . I tried with loop function but it didnt work

[cbutcher]

You can build an array with initialize array.

You can track a button press with an Event Structure. 

Put a Value Change event for the button on the event structure and place initialize array inside the case.

If you want a different initialization process, you can do that instead. 

[Canucks.canucks]

This is what I did too but I need to drag the array manual to see it. Is there a way that once you press the button it shows it. Also, currently my array type is an indicator so the value is what I put for initilizing . Is there a way once the user pressed the button, array is created. then user manual enters the values he wants .See the attached file.  So he enters 5 for intervals, then an array of size 5 is created. then he enters 3,6,9,1,2 in the array 

[crossrulz · Accepted solution]

There is a property for setting the number of elements visible for an array control/indicator.  Right click on your array and create->property node.  I do not remember the exact name, but it will be obvious.

And if you want the user to edit the value, it needs to be a control.

[natasftw]

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@Canucks.canucks wrote:

This is what I did too but I need to drag the array manual to see it. Is there a way that once you press the button it shows it. Also, currently my array type is an indicator so the value is what I put for initilizing . Is there a way once the user pressed the button, array is created. then user manual enters the values he wants .See the attached file.  So he enters 5 for intervals, then an array of size 5 is created. then he enters 3,6,9,1,2 in the array 

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You're trying to solve two different problems.

1) Create an array of size n

2) Display all values of the array

The first you're doing already.  The display doesn't change the data contained in the array.  If you can drag it to see the values, you've made the array.

The second, you'll want to take some time to think about before implementing.  crossrulz gave you the answer.  But, you'll want to think about what this CAN do.  If the user hits 5, no big deal.  If they hit 10, probably not a big deal.  What if they hit 100?  Do you want your VI stretching that far?  Often, it's a better decision to choose your max viewable length and let the user see the uninitialized values.  If you do want it to grow, you'll want to determine a max size and add some logic to prevent the array from displaying any more than that number of elements.