[news.eclipse.platform.swt] Re: Text Widget: How to check (verify) user

[Jeff Myers <jeff.myers@xxxxxxxxxxx>]

Andreas,

You can use a VerifyListener to listen to changes on the text widget. 
From the VerifyEvent you can get the new text that's being entered so 
you can figure out if it'd result in an invalid value.  If you have an 
invalid state, you set the doit field on the VerifyEvent to false, and 
the new text won't show up in the text field.

See the SWT Snippets related to the Text widget for examples:
http://www.eclipse.org/swt/snippets/

Hope this helps,
 - Jeff

Andreas wrote:
> Hi,
>
> i know this is kinda of a basic question. But i wonder how i can best 
> verify the user input of a text widget, where the user can type in free 
> text.
>
> In my specific case i only want to allow Integer from 0 on....
>
>
> How can i do this best?
>
> thanks for any help
> Andreas