How To Reference Widget In Listener Event Without Nil Error?

Getting Started Newbie Questions
#1

Hello,

 

I’m sure this is a dumb question but I am having trouble referencing the widget name in the listener event. I have the listener even first in the code. Then in the scene:createScene I have the code to create the widget. But when I try to check the status of checkbox widget in the listener event I get the error - attempt to index global ‘chkSaveEmail’ (a nil value). I assume this is because the widget is created after. How do I reference it though? I will want an event such as a Save button to see what all is checked, entered, etc.

 

Thanks,

 

Warren

 

#2

Have you tried adding the local chkSaveEmail up top and then create chkSaveEmail (without local in front of it) in createScene?

 

Naomi

#3

Naomi, your a life saver! It works great now.

 

Thanks!

 

Warren

#4

Hey, Warren, you might want to read these:

 

http://omnigeek.robmiracle.com/2011/10/14/understanding-scope-for-beginning-programmers/

 

http://www.coronalabs.com/blog/2011/09/21/tutorial-scopes-for-functions/

 

I think there were more about scope, but I haven’t bookmarked them, and the quick google search game me these two above.

 

Anyhow, it’s important to have a good grasp on scope, and I think it will help you a lot along the way.

 

Naomi

#5

Have you tried adding the local chkSaveEmail up top and then create chkSaveEmail (without local in front of it) in createScene?

 

Naomi

#6

Naomi, your a life saver! It works great now.

 

Thanks!

 

Warren

#7

Hey, Warren, you might want to read these:

 

http://omnigeek.robmiracle.com/2011/10/14/understanding-scope-for-beginning-programmers/

 

http://www.coronalabs.com/blog/2011/09/21/tutorial-scopes-for-functions/

 

I think there were more about scope, but I haven’t bookmarked them, and the quick google search game me these two above.

 

Anyhow, it’s important to have a good grasp on scope, and I think it will help you a lot along the way.

 

Naomi