Add text line to list box

[Kobi_K]

Hi all,

I'm trying to add text lines programmatically,

what I'm tiring to implement is a simple text terminal for my software in order to show text messages.

My problem is that that I need to add text lines from different sub vi's.

Can any one recommend a good approach ?

[Yamaeda]

The list box has a Strings[] property, just update that array of strings.

/Y 

[jcarmody]

Send a reference of your List Box to the sub VIs and do what Yamaeda said ^^^.

[Kobi_K]

Thank you guys for the replay ,

I know that but I'm having difficulty with changing the array in subvi

1. With the reference : how to change an array value in the subvi

2. With the process : if I'm updating a value in the array then the whole array inserts into the property of my list so basically it rewrite the entire array to the list on every change , isn't that a bit Wasteful ?

[Yamaeda]

1. Get array, modify, write array

2. Yes and no, as you and the program dont know if the next byte of memory is free you'll need to allocate the full array worth of memory, thus a new array. For a single item you'll use Replace array and hopefully the compiler is smart enough to only change that memory. 🙂

/Y 

[crossrulz · Accepted solution]

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@kobi Kalif wrote:

1. With the reference : how to change an array value in the subvi

2. With the process : if I'm updating a value in the array then the whole array inserts into the property of my list so basically it rewrite the entire array to the list on every change , isn't that a bit Wasteful ?

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1.

2. That's what you do for normal arrays as well.

[Kobi_K]

Thank you all for the help ! the problem was solved.