Calculator

[mleiser]

Just like in a date filed you can have it that you click on the data entry box and a calendar pops up, from which you can choose a particular date, in a number filed, is there a way to get a calculator to pop, so you can calculate the value you want to put in the data entry box as a plain number?

[eos]

Use a global field, a layout, a small (modal) dialog window, a script, and Evaluate() / EvaluationError () to enter expressions in free-form and transfer the result into your field of choice.

 

Of course, if you have higher aesthetic standards and/or time, you could build a small pocket calculator, complete with buttons and “LCD” display …

[mleiser]

Thanks, but beyong my abilities. Guess I'm actually less than intermidiate. Thanks for the comeback.

[eos]

Guess I'm actually less than intermidiate.

 

That is because 'e' comes before 'i'. 

 

In the meantime, here's a quick sketch; no warranties whatsoever on this gadget, though.

Calculator_eos.fmp12.zip

[mleiser]

That is because 'e' comes before 'i'. 

 

In the meantime, here's a quick sketch; no warranties whatsoever on this gadget, though.

Can you imagine how I would spell it if I wasn't working in a school!!

Thanks a lot for the zip.

[bruceR]

eos: that seems like a nice little example but I am wondering why it can handle decimals.

 

If I enter 45 + 3 that works.

 

If I enter 45.1 + 3, it fails, even though the evaluation error is zero.

[eos]

eos: that seems like a nice little example but I am wondering why it can handle decimals.

 

If I enter 45 + 3 that works.

 

If I enter 45.1 + 3, it fails, even though the evaluation error is zero.

 

I guess you mean can't … it works here (as I said: no warranties …).

 

Using the system decimal character (which for me normally is a comma) gives a result with decimal places.

 

 

I even switched to using a period as in your example, which also works as expected.

 

 

What result does the Data Viewer evaluate your expression to?

[bruceR]

The $error variable is set to 102 field missing.

 

Apparently the file is set up with european number formatting and cannot handle decimal values.

 

The result of the calculation is "?"

 

If I use a comma instead of decimal point your file works correctly. 

[mleiser]

Thank you so much for the zip file again. I modified it to my needs and it works beautifully.

[No_access]

Just for anyone who does not know,  if you change change the default language of the field to English instead of German the decimal will work just fine.