Is there a Solution for this problem?

[Eric Chatonet]

Hi Charles,

 From an ergonomic point of view, it's probably not a very good idea to:
. Alert the user when he is wrong. I would not like a software that  
tells me: 'Be careful what you are doing, absent minded!' :-)
. Not to allow the user to use the Tab or Return keys as he is used  
to. I would think: 'Too bad. Does this guy know something about  
guidelines?'

Then another approach could be to just not let the user enter a  
*wrong* value.
To get you started, The "#020 How to master users data in entry  
boxes" tutorial might help you:
This stack shows you how to allow the user to type the data you  
expect according to a format in an entry box field.
Five examples are provided from a simple ZIP code to custom  
sophisticated formats.

You will access this tutorial through "Tutorials Picker" a free  
plugin that interfaces with the So Smart Software website in order to  
display all available tutorials stacks directly from the web.
You will find it by going to http://www.sosmartsoftware.com/.
Revolution/Plugins or Tutorials section.

For instance, in a field that would only accept digits lower than a  
given value:

on keydown pKey
   local tMaxValue
   -----
   put HigherScore() into tMaxValue -- max allowed value calculation
   if pKey is an integer and value(target & pKey) < tMaxValue then  
pass keydown
   beep -- I hate beeps but it's for demonstration ;-)
end keydown

Best regards from Paris,
Eric Chatonet.

Le 6 mai 07 à 15:06, Charles Szasz a écrit :

> I have entry fields that the user fills in with numbers by using  
> the tab, return or enter keys. Each field is checked for a range of  
> scores by catching the exit or close field. If the user enters a  
> number that is above the range for the entry field, a dialog box  
> appears warning them of the mistake and puts the focus back on the  
> field.  Here is my question: I found that if the user uses the tab,  
> return or enter keys to enter the data with fields and then goes  
> back using the cursor and changes a data entry that is above above  
> the range and instead of using the above keys then uses the mouse  
> to click a Calculate button which computes the scores and goes to  
> the next card, the error box does not appear but I get an execution  
> error  in the standalone. How do you trap for this when the user  
> does not use the tab, enter or return keys but uses the mouse to  
> move the cursor to click on the calculate button?
>
> Charles Szasz
> cszasz at mac.com

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