case structure

[dphan128]

I have a case structure to handle different part number that each has 6 digits. I'm having trouble define the false case where as it doesn't match any 6 digits that I predefined in other cases. And I don't want my false case to execute when there is no mumber! How would I define a "false" case where I receive and examine any 6 numbers other than my predefined numbers.

Thanks for your help

[Dennis_Knutson]

Make it the default case.

[dphan128]

I already make it a default case. That doesn't solve the issue

[altenbach]

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@dphan128 wrote:

And I don't want my false case to execute when there is no mumber! 

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Is the "number" a formatted string or an integer?

If it is a string, you can make a "no number" case by using an empty string as selector. So far, we have 8 cases:

• "#1"
• "#2"
• ..
• "#6"
• default (any other number)
• "", empty string (no number)

(If "number" is an integer, there is no "no number" possible. Please explain)

Maybe if the number requires a certain number of digits, you could define ranges and go to the no-number case ( e.g. if the number is below 99999 (if you require 6 decimal digit numbers). Use "..99999" for the case.

[altenbach]

OK, I got my computer with 8.2 loaded so I was able to look at your code.

• Use an event structure. You don't want to spin millions of times per second, popping up dialogs at the same rate while you are still entering the number.
• please turn off "update value while typing" or you'll get interrupted via popup after each digit
• You should make the extra case the default, not one of the explicitely numbered cases.

Here's a quick draft. See if it makes sense. 🙂

[dphan128]

Thank you altenbach.

dphan128

[dphan128]

Dear altenbach,

Sorry to bother you again. But when I tried to reconstruct another vi with the same exact detail as your modified one and run. I don't get the same result. The message pop ups right away right after I hit one key on keyboard.

Could you point out the error please. (attached vi)

Thanks

dphan128

[altenbach]

Right-click on the text control and uncheck "update value while typing".

Message Edited by altenbach on 08-17-2007 02:08 PM

[dphan128]

Thanks again. Now I know what you meant  on your earlier comments.

Happy Friday!

[altenbach]

You might also want to check "limit to single line". This way, hitting enter completes the entry. If this is unchecked, hitting enter will just add a new line to the text control. I would assume that all your entries are single line anyway. 😉