Readonly vs. enabled

[aharrisreid]

In my VFP application framework I currently use this.readonly=.T. for textboxes, editboxes and grids that I don't want edited. I have favored this over this.enabled=.F. because I still want the users to enter the control and scroll to see data that may not be in the visible area of the control. However, this means additional code must be added to ensure Valid() and LostFocus() code does not run. On the other hand, setting the enabled property is consistent with all those other controls that do not have a readonly property.

What do other users use to disable their foundation classes? Apart from what I have mentioned above, are there any other pros and cons of each approach?

Many thanks,
Alan Harris-Reid

 

[DSummZZZ]

I use the same methodology, but by subclassing those controls and placing the relevant code in the subclass to ignore the valids and so on, you only have to do it once.


-Dave Summers-

Even more Fox stuff at:

http://www.davesummers.net/foxprolinks.htm

 

[mspratt]

Hi Alan,

Another factor ReadOnly allows cut and paste. Disabled does not.

Regards,

Mike

 

[aharrisreid]

Mike, thanks for the reply.

>Another factor ReadOnly allows cut and paste. Disabled
> does not.

Good point. I had forgotton about that.

Regards,
Alan

 

[mspratt]

Hi Alan,

Reread - Must have been a blonde moment

Copy, not cut.

Regards,

Mike

 

[aharrisreid]

Mike,

>Copy, not cut.

Well spotted - I didn't!

Isn't it strange how one reads what one expects to read, not what is actually on the page?

Regards,
Alan

 

[mspratt]

Isn't it strange how one reads what one expects to read, not what is actually on the page?

Yup, easy to repeat a mistake. That's why, if you can, you need to get someone to check your work.

Regards,

Mike

 

[craigber]

Mike..

Would that be called Extreme Posting?

*G*



Craig Berntson
MCSD, Visual FoxPro MVP,

http://www.craigberntson.com

Author, CrysDev: A Developer's Guide to Integrating Crystal Reports"

 

[mspratt]

Hi Craig,

I have Onanon *bg*

Regards,

Mike