Field Validation

Discuss topics that apply across the products, such as the PocketC language, or development in general

Postby MrBob on Sun Dec 30, 2001 1:14 am

Hi All,
I am writing a program that converts english to metric torque for work. My question is what is a good way to do edit field checking so the program verifies a valid number is entered into the field and not alpha characters or punctuation.
Thanks!
Bob
MrBob
 
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Postby guy on Mon Dec 31, 2001 11:21 am

Are you using the Windows CE version of PocketC or the Palm version?

For Windows CE you can set the edit field type to numeric only which will force the user input to be digits. You could also intercept the EN_KILLFOCUS notification message when the user steps to the next field, and validate the contents of the edit field at that time (setting the focus back to the field if the input wasn't numeric).



Guy
[url]mailto:pcform@pcform.net[/url]
http://www.pcform.net
PocketC CE API interface: http://www.networkdynamics.net/pcktceapi.zip
Guy
[url]mailto:pcform@pcform.net[/url]
http://www.pcform.net
PocketC CE API interface: http://www.networkdynamics.net/PCForm.html#library
PCForm and CE API forum: http://www.networkdynamics.net/forum
guy
 
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Postby MrBob on Tue Jan 01, 2002 2:35 am

Thanks Guy,
I am using Palm OS and have been using Ccontrols to build the GUI. In the last day or so I have finally unzipped PToolbox, printed the documentation and your reply led me where I need to go to make the field numeric.
Thanks!
Bob
MrBob
 
Posts: 5
Joined: Sun Dec 30, 2001 12:58 am


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