Re: [flexcoders] Moving a viewStack through actionscript
I normally do dispatch custom events from my TitleWindows back to the parent,
but was having a hard time figuring out how to pass the value of the selection
(radiobutton) back to the parent to score.
From: Michael Wills mich...@mawills.com
Sent: Monday, March 09, 2009 3:21 PM
To: flexcoders@yahoogroups.com
Subject: Re: [flexcoders] Moving a viewStack through actionscript
Hi Wally,
sorry I missed the hierarchy there. You have checkSingle on the module
and not the Viewstack. In that case, you should be able to do
parent.parent.checkSingle and leave out the cast as test1. So
public var testMod:Object = parent.parent;
The last one failed because it was trying to convert a viewstack into a
test1 which of course isn't a viewstack. But I'm not sure about this
one because the parent.parent is a module. You could also forgo using
the testMod variable and in your click declaration instead of
click=testMod.checkSingle(group1.selectedValue)
use
click=parent.parent.checkSingle(group1.selectedValue) /
Hopefully that'll work for you.
If you have a little time to invest, and if you may be doing more Flex
apps in the future, even though this one is not going to be a full-on
huge app, I'd learn about dispatching custom events. It's not that
complicated but it takes some time to understand. It would save some of
the hassle you're trying to do of course at the expense of a new and
different kind of hassle. :-)
Michael
Wally Kolcz wrote:
Wow...its a 'simple' one time create
app.
All I want to do is when the user selects an answer on the
question1.mxml component, they can click a button, pass the value of
the radio button to the test1 module's checkSingle() method and
then move to the next question in the test1 module's stack.
When I changed the function call on the button of question1.mxml to
test1(parent).checkSingle(group1.selectedValue); mx:Button label=Next
click=test1(parent).checkSingle(group1.selectedValue)
/
I get this error:
TypeError: Error #1034: Type Coercion failed: cannot convert
mx.containers::viewst...@6563ae1 to com.ipexpert.tests.test1.
at
com.ipexpert.questions.q1::question1/___question1_Button1_click()[D:\wkolcz\My
Documents\Flex Builder
3\IPExpertBrainBuster\src\com\ipexpert\questions\q1\question1.mxml:21]
Here is checkSingle() and nextQuestionPlease()
public function checkSingle(answer:Object):void {
if (answer !=0) {
Application.application.score += 1;
}
currentQuestion += 1;
nextQuestionPlease();
}
public function nextQuestionPlease():void {
questionsVS.selectedIndex=currentQuestion;
}
From: Michael Wills
mich...@mawills.com
Sent: Monday, March 09, 2009 11:44 AM
To: flexcoders@yahoogroups.com
Subject: Re: [flexcoders] Moving a viewStack through
actionscript
If I am understanding your code correctly, you actually want to
call
test1(parent).checkSingle instead of testMod. The reason is
because you
are instantiating a brand new, and unrelated, test1 component with
public var testMod:test1 = new test1();
You might be able to do
public var testMod:test1 = test1(parent);
casting the variable to the type test1.
If it's a simple app you are working on, you can do this kind of
tightly
coupled design. By that I mean, your question1 component knows about
your test1 component. If it's a more complex app though, you may want
to
look at decoupling your app. Otherwise this app will quickly become
inflexible and harder to maintain as it grows.
In this case, you could set up your question components to dispatch an
event that your test1 then listens to. That way question1 doesn't have
to be directly connected to parent.
I hope that makes sense!
Michael
Wally Kolcz wrote:
When I added the click=nextQuestion() it was triggered off
the
selecting of a radio button and not the button. Here all the code
I
have. It is telling me that the viewStack doesn't exist when I
believe
it should.
test1.mxml
?xml version=1.0 encoding=utf-8?
mx:Module xmlns:mx=http://www.adobe.com/2006/mxml;
layout=vertical
width=100% height=98%
xmlns:questions=com.ipexpert.questions.q1.*
creationComplete=initApp()
mx:Script
![CDATA[
import mx.core.Application;
public var testID:int = 1;
public var currentQuestion:int = 0;
public function initApp():void {
}
public function checkSingle(answer:Object):void {
if (answer !=0) {
Application.application.score += 1;
}
currentQuestion += 1;
nextQuestionPlease();
}
public function nextQuestionPlease():void {
}
]]
/mx:Script
mx:ViewStack id=questionsVS width=98% height=100%
paddingLeft=10
questions:question1 /
questions:question2 /
questions:question3 /
questions:question4 /
/mx:ViewStack
/mx:Module
question1.mxml
?xml version=1.0
Re: [flexcoders] Moving a viewStack through actionscript
Sorry to be a pain, but when I added the
parent.parent.checkSingle() it gives me an error.
1061: Call to a possibly undefined method checkSingle through a reference with
static type flash.display:DisplayObjectContainer.
I though my problem was the 'public var testMod:test1 = new test1();', thinking
the 'new test1()' was the problem. So I removed it and just set it to a local
variable.
public var testMod:test1; I was able to see the checkSingle
method in the auto hinting. But when I try to run it now, I get that the
testMod is null.
If I were to do the dispatchEvent route, I would have to attach it to the test1
module, right? this.addEventListener(answered, checkSingle);. How could I
get the variable passed from the components (questions) to the module's
checkSingle() method? There will be between 20-100 of these questions.
From: Michael Wills mich...@mawills.com
Sent: Monday, March 09, 2009 3:21 PM
To: flexcoders@yahoogroups.com
Subject: Re: [flexcoders] Moving a viewStack through actionscript
Hi Wally,
sorry I missed the hierarchy there. You have checkSingle on the module
and not the Viewstack. In that case, you should be able to do
parent.parent.checkSingle and leave out the cast as test1. So
public var testMod:Object = parent.parent;
The last one failed because it was trying to convert a viewstack into a
test1 which of course isn't a viewstack. But I'm not sure about this
one because the parent.parent is a module. You could also forgo using
the testMod variable and in your click declaration instead of
click=testMod.checkSingle(group1.selectedValue)
use
click=parent.parent.checkSingle(group1.selectedValue) /
Hopefully that'll work for you.
If you have a little time to invest, and if you may be doing more Flex
apps in the future, even though this one is not going to be a full-on
huge app, I'd learn about dispatching custom events. It's not that
complicated but it takes some time to understand. It would save some of
the hassle you're trying to do of course at the expense of a new and
different kind of hassle. :-)
Michael
Wally Kolcz wrote:
Wow...its a 'simple' one time create
app.
All I want to do is when the user selects an answer on the
question1.mxml component, they can click a button, pass the value of
the radio button to the test1 module's checkSingle() method and
then move to the next question in the test1 module's stack.
When I changed the function call on the button of question1.mxml to
test1(parent).checkSingle(group1.selectedValue);
mx:Button label=Next
click=test1(parent).checkSingle(group1.selectedValue)
/
I get this error:
TypeError: Error #1034: Type Coercion failed: cannot convert
mx.containers::viewst...@6563ae1 to com.ipexpert.tests.test1.
at
com.ipexpert.questions.q1::question1/___question1_Button1_click()[D:\wkolcz\My
Documents\Flex Builder
3\IPExpertBrainBuster\src\com\ipexpert\questions\q1\question1.mxml:21]
Here is checkSingle() and nextQuestionPlease()
public function checkSingle(answer:Object):void {
if (answer !=0) {
Application.application.score += 1;
}
currentQuestion += 1;
nextQuestionPlease();
}
public function nextQuestionPlease():void {
questionsVS.selectedIndex=currentQuestion;
}
From: Michael Wills
mich...@mawills.com
Sent: Monday, March 09, 2009 11:44 AM
To: flexcoders@yahoogroups.com
Subject: Re: [flexcoders] Moving a viewStack through
actionscript
If I am understanding your code correctly, you actually want to
call
test1(parent).checkSingle instead of testMod. The reason is
because you
are instantiating a brand new, and unrelated, test1 component with
public var testMod:test1 = new test1();
You might be able to do
public var testMod:test1 = test1(parent);
casting the variable to the type test1.
If it's a simple app you are working on, you can do this kind of
tightly
coupled design. By that I mean, your question1 component knows about
your test1 component. If it's a more complex app though, you may want
to
look at decoupling your app. Otherwise this app will quickly become
inflexible and harder to maintain as it grows.
In this case, you could set up your question components to dispatch an
event that your test1 then listens to. That way question1 doesn't have
to be directly
RE: [flexcoders] Moving a viewStack through actionscript
Put the change handler on the RadioButton group, and in that handler
dispatch your specially named, bubbling event. In the handler for that
event, you can access the dispatching component through the reference in the
target or currentTarget property. So you can access the value of the
RadioButtonGroup through that reference.
Tracy Spratt,
Lariat Services, development services available
_
From: flexcoders@yahoogroups.com [mailto:flexcod...@yahoogroups.com] On
Behalf Of Wally Kolcz
Sent: Tuesday, March 10, 2009 8:34 AM
To: flexcoders@yahoogroups.com
Subject: Re: [flexcoders] Moving a viewStack through actionscript
Sorry to be a pain, but when I added the parent.parent.checkSingle() it
gives me an error.
1061: Call to a possibly undefined method checkSingle through a reference
with static type flash.display:DisplayObjectContainer.
I though my problem was the 'public var testMod:test1 = new test1();',
thinking the 'new test1()' was the problem. So I removed it and just set it
to a local variable. public var testMod:test1; I was able to see the
checkSingle method in the auto hinting. But when I try to run it now, I get
that the testMod is null.
If I were to do the dispatchEvent route, I would have to attach it to the
test1 module, right? this.addEventListener(answered, checkSingle);. How
could I get the variable passed from the components (questions) to the
module's checkSingle() method? There will be between 20-100 of these
questions.
_
From: Michael Wills mich...@mawills.com
Sent: Monday, March 09, 2009 3:21 PM
To: flexcoders@yahoogroups.com
Subject: Re: [flexcoders] Moving a viewStack through actionscript
Hi Wally, sorry I missed the hierarchy there. You have checkSingle on the
module and not the Viewstack. In that case, you should be able to do
parent.parent.checkSingle and leave out the cast as test1. So
public var testMod:Object = parent.parent;
The last one failed because it was trying to convert a viewstack into a
test1 which of course isn't a viewstack. But I'm not sure about this one
because the parent.parent is a module. You could also forgo using the
testMod variable and in your click declaration instead of
click=testMod.checkSingle(group1.selectedValue)
use
click=parent.parent.checkSingle(group1.selectedValue) /
Hopefully that'll work for you.
If you have a little time to invest, and if you may be doing more Flex apps
in the future, even though this one is not going to be a full-on huge app,
I'd learn about dispatching custom events. It's not that complicated but it
takes some time to understand. It would save some of the hassle you're
trying to do of course at the expense of a new and different kind of hassle.
:-)
Michael
Wally Kolcz wrote:
Wow...its a 'simple' one time create app.
All I want to do is when the user selects an answer on the question1.mxml
component, they can click a button, pass the value of the radio button to
the test1 module's checkSingle() method and then move to the next question
in the test1 module's stack.
When I changed the function call on the button of question1.mxml to
test1(parent).checkSingle(group1.selectedValue); mx:Button label=Next
click=test1(parent).checkSingle(group1.selectedValue) /
I get this error:
TypeError: Error #1034: Type Coercion failed: cannot convert
mx.containers::viewst...@6563ae1 to com.ipexpert.tests.test1.
at
com.ipexpert.questions.q1::question1/___question1_Button1_click()[D:\wkolcz\
My Documents\Flex Builder
3\IPExpertBrainBuster\src\com\ipexpert\questions\q1\question1.mxml:21]
Here is checkSingle() and nextQuestionPlease()
public function checkSingle(answer:Object):void {
if (answer !=0) {
Application.application.score += 1;
}
currentQuestion += 1;
nextQuestionPlease();
}
public function nextQuestionPlease():void {
questionsVS.selectedIndex=currentQuestion;
}
_
From: Michael Wills mich...@mawills.com
Sent: Monday, March 09, 2009 11:44 AM
To: flexcoders@yahoogroups.com
Subject: Re: [flexcoders] Moving a viewStack through actionscript
If I am understanding your code correctly, you actually want to call
test1(parent).checkSingle instead of testMod. The reason is because you
are instantiating a brand new, and unrelated, test1 component with
public var testMod:test1 = new test1();
You might be able to do
public var testMod:test1 = test1(parent);
casting the variable to the type test1.
If it's a simple app you are working on, you can do this kind of tightly
coupled design. By that I mean, your question1 component knows about
your test1 component. If it's a more complex app though, you may want to
look at decoupling your app. Otherwise this app will quickly become
inflexible and harder to maintain as it grows.
In this case, you could set up your question components to dispatch an
event that your test1 then listens
RE: [flexcoders] Moving a viewStack through actionscript
Would I put the dispatch on the radio button group of the 'Next' button?
From: Tracy Spratt tspr...@lariatinc.com
Sent: Tuesday, March 10, 2009 6:42 AM
To: flexcoders@yahoogroups.com
Subject: RE: [flexcoders] Moving a viewStack through actionscript
Put the change handler on the RadioButton
group, and in that handler dispatch your specially named, bubbling event. In
the handler for that event, you can access the dispatching component through
the reference in the target or currentTarget property. So you can access the
value of the RadioButtonGroup through that reference. Tracy Spratt, Lariat
Services, development services
available
From:
flexcoders@yahoogroups.com [mailto:flexcod...@yahoogroups.com] On Behalf Of
Wally Kolcz
Sent: Tuesday, March 10, 2009 8:34
AM
To: flexcoders@yahoogroups.com
Subject: Re: [flexcoders] Moving a
viewStack through actionscript
Sorry to be a pain, but when I added the
parent.parent.checkSingle() it gives me an error.
1061: Call to a possibly undefined method checkSingle through a reference with
static type flash.display:DisplayObjectContainer.
I though my problem was the 'public var testMod:test1 = new test1();', thinking
the 'new test1()' was the problem. So I removed it and just set it to a local
variable. public var testMod:test1; I was able to see the checkSingle method in
the auto hinting. But when I try to run it now, I get that the testMod is null.
If I were to do the dispatchEvent route, I would have to attach it to the test1
module, right? this.addEventListener(answered,
checkSingle);. How could I get the variable passed from the
components (questions) to the module's checkSingle() method? There will be
between 20-100 of these questions.
From : Michael
Wills mich...@mawills.com
Sent: Monday, March 09, 2009 3:21
PM
To: flexcoders@yahoogroups.com
Subject: Re: [flexcoders] Moving a
viewStack through actionscript
Hi
Wally, sorry I missed the hierarchy there. You have checkSingle on the module
and not the Viewstack. In that case, you should be able to do
parent.parent.checkSingle
and leave out the cast as test1. So
public var testMod:Object = parent.parent;
The last one failed because it was trying to convert a viewstack into a test1
which of course isn't a viewstack. But I'm not sure about this one because the
parent.parent is a module. You could also forgo using the testMod variable and
in your click declaration instead of
click=testMod.checkSingle(group1.selectedValue)
use
click=parent.parent.checkSingle(group1.selectedValue)
/
Hopefully that'll work for you.
If you have a little time to invest, and if you may be doing more Flex apps in
the future, even though this one is not going to be a full-on huge app, I'd
learn about dispatching custom events. It's not that complicated but it takes
some time to understand. It would save some of the hassle you're trying to do
of course at the expense of a new and different kind of hassle. :-)
Michael
Wally Kolcz wrote:
Wow...its
a 'simple' one time create app.
All I want to do is when the user selects an answer on the question1.mxml
component, they can click a button, pass the value of the radio button to
the test1 module's checkSingle() method and then move to the next
question in the test1 module's stack.
When I changed the function call on the button of question1.mxml to
test1(parent).checkSingle(group1.selectedValue); mx:Button
label=Next click=test1(parent).checkSingle(group1.selectedValue)
/
I get this error:
TypeError: Error #1034: Type Coercion failed: cannot convert
mx.containers::viewst...@6563ae1
to com.ipexpert.tests.test1.
at
com.ipexpert.questions.q1::question1/___question1_Button1_click()[D:\wkolcz\My
Documents\Flex Builder
3\IPExpertBrainBuster\src\com\ipexpert\questions\q1\question1.mxml:21]
Here is checkSingle() and nextQuestionPlease()
public function checkSingle(answer:Object):void {
if
(answer !=0) {
Application.application.score += 1;
}
currentQuestion += 1;
nextQuestionPlease();
}
public function nextQuestionPlease():void {
questionsVS.selectedIndex=currentQuestion;
}
From : Michael
Wills mich...@mawills.com
Sent: Monday, March 09, 2009 11:44
AM
To: flexcoders@yahoogroups.com
Subject: Re: [flexcoders] Moving a
viewStack through actionscript
If I am
understanding your code correctly, you actually want to call
test1(parent).checkSingle instead of testMod. The reason is because you
are instantiating a brand new, and unrelated, test1 component with
public var testMod:test1 = new test1();
You might be able to do
public var testMod:test1 = test1(parent);
casting the variable to the type test1.
If it's a simple app you are working on, you can do this kind of tightly
coupled design. By that I mean, your question1
RE: [flexcoders] Moving a viewStack through actionscript
Thank you tracy. That helps a lot. I got it to work! From: Tracy Spratt tspr...@lariatinc.com Sent: Tuesday, March 10, 2009 6:42 AM To: flexcoders@yahoogroups.com Subject: RE: [flexcoders] Moving a viewStack through actionscript Put the change handler on the RadioButton group, and in that handler dispatch your specially named, bubbling event. In the handler for that event, you can access the dispatching component through the reference in the target or currentTarget property. So you can access the value of the RadioButtonGroup through that reference. Tracy Spratt, Lariat Services, development services available From: flexcoders@yahoogroups.com [mailto:flexcod...@yahoogroups.com] On Behalf Of Wally Kolcz Sent: Tuesday, March 10, 2009 8:34 AM To: flexcoders@yahoogroups.com Subject: Re: [flexcoders] Moving a viewStack through actionscript Sorry to be a pain, but when I added the parent.parent.checkSingle() it gives me an error. 1061: Call to a possibly undefined method checkSingle through a reference with static type flash.display:DisplayObjectContainer. I though my problem was the 'public var testMod:test1 = new test1();', thinking the 'new test1()' was the problem. So I removed it and just set it to a local variable. public var testMod:test1; I was able to see the checkSingle method in the auto hinting. But when I try to run it now, I get that the testMod is null. If I were to do the dispatchEvent route, I would have to attach it to the test1 module, right? this.addEventListener(answered, checkSingle);. How could I get the variable passed from the components (questions) to the module's checkSingle() method? There will be between 20-100 of these questions. From : Michael Wills mich...@mawills.com Sent: Monday, March 09, 2009 3:21 PM To: flexcoders@yahoogroups.com Subject: Re: [flexcoders] Moving a viewStack through actionscript Hi Wally, sorry I missed the hierarchy there. You have checkSingle on the module and not the Viewstack. In that case, you should be able to do parent.parent.checkSingle and leave out the cast as test1. So public var testMod:Object = parent.parent; The last one failed because it was trying to convert a viewstack into a test1 which of course isn't a viewstack. But I'm not sure about this one because the parent.parent is a module. You could also forgo using the testMod variable and in your click declaration instead of click=testMod.checkSingle(group1.selectedValue) use click=parent.parent.checkSingle(group1.selectedValue) / Hopefully that'll work for you. If you have a little time to invest, and if you may be doing more Flex apps in the future, even though this one is not going to be a full-on huge app, I'd learn about dispatching custom events. It's not that complicated but it takes some time to understand. It would save some of the hassle you're trying to do of course at the expense of a new and different kind of hassle. :-) Michael Wally Kolcz wrote: Wow...its a 'simple' one time create app. All I want to do is when the user selects an answer on the question1.mxml component, they can click a button, pass the value of the radio button to the test1 module's checkSingle() method and then move to the next question in the test1 module's stack. When I changed the function call on the button of question1.mxml to test1(parent).checkSingle(group1.selectedValue); mx:Button label=Next click=test1(parent
Re: [flexcoders] Moving a viewStack through actionscript
Hey there Wally, You can get access to the currently selected viewstack, and also set it, through selectedIndex. So your initial declaration would be like mx:ViewStack id=questionVS etc... selectedIndex=0 click=nextQuestion() and in your function nextQuestion you can increment the selectedIndex. I'd have to check but I think you can find the number of items in your viewStack with numChildren. That would give you your max value to finish your quiz or handle the end how you would like. You can find more about what you can do with viewstacks in the docs: http://livedocs.adobe.com/flex/3/langref/mx/containers/ViewStack.html Hope that helps! Michael Wally Kolcz wrote: I have a test that I want to walk through the questions using a function. How can I set the inital value of the ViewStack (questionsVS) to 0 and then increment it by one each time someone clicks a button? mx:ViewStack id=questionsVS width=98% height=100% paddingLeft=10 questions:question1 / questions:question2 / questions:question3 / questions:question4 / /mx:ViewStack
Re: [flexcoders] Moving a viewStack through actionscript
When I added the click=nextQuestion() it was triggered off the selecting of a
radio button and not the button. Here all the code I have. It is telling me
that the viewStack doesn't exist when I believe it should.
test1.mxml
?xml version=1.0 encoding=utf-8?
mx:Module xmlns:mx=http://www.adobe.com/2006/mxml; layout=vertical
width=100% height=98% xmlns:questions=com.ipexpert.questions.q1.*
creationComplete=initApp()
mx:Script
![CDATA[
import mx.core.Application;
public var testID:int = 1;
public var currentQuestion:int = 0;
public function initApp():void {
}
public function checkSingle(answer:Object):void {
if (answer !=0) {
Application.application.score += 1;
}
currentQuestion += 1;
nextQuestionPlease();
}
public function nextQuestionPlease():void {
}
]]
/mx:Script
mx:ViewStack id=questionsVS width=98% height=100% paddingLeft=10
questions:question1 /
questions:question2 /
questions:question3 /
questions:question4 /
/mx:ViewStack
/mx:Module
question1.mxml
?xml version=1.0 encoding=utf-8?
mx:VBox xmlns:mx=http://www.adobe.com/2006/mxml; width=98% height=98%
mx:Script
![CDATA[
import com.ipexpert.tests.test1;
public var testMod:test1 = new test1();
]]
/mx:Script
mx:Label fontWeight=bold text=1. Which layer(s) of the OSI Reference
Model provide(s) for internetwork connectivity? /
mx:RadioButtonGroup id=group1 /
mx:RadioButton paddingLeft=10 groupName=group1 label=Data Link
value=0 selected=true /
mx:RadioButton paddingLeft=10 groupName=group1 label=Physical
value=0 /
mx:RadioButton paddingLeft=10 groupName=group1 label=Session
value=0 /
mx:RadioButton paddingLeft=10 groupName=group1 label=Network
value=1 /
mx:RadioButton paddingLeft=10 groupName=group1 label=Presentation
value=0 /
mx:Button label=Next click=testMod.checkSingle(group1.selectedValue) /
/mx:VBox
From: Michael Wills mich...@mawills.com
Sent: Monday, March 09, 2009 10:55 AM
To: flexcoders@yahoogroups.com
Subject: Re: [flexcoders] Moving a viewStack through actionscript
Hey there Wally,
You can get access to the currently selected viewstack, and also set it,
through selectedIndex. So your initial declaration would be like
mx:ViewStack id=questionVS etc... selectedIndex=0
click=nextQuestion()
and in your function nextQuestion you can increment the selectedIndex.
I'd have to check but I think you can find the number of items in your
viewStack with numChildren. That would give you your max value to finish
your quiz or handle the end how you would like.
You can find more about what you can do with viewstacks in the docs:
http://livedocs.adobe.com/flex/3/langref/mx/containers/ViewStack.html
Hope that helps!
Michael
Wally Kolcz wrote:
I have a test that I want to walk through the questions using a
function. How can I set the inital value of the ViewStack
(questionsVS) to 0 and then increment it by one each time someone
clicks a button?
mx:ViewStack id=questionsVS width=98% height=100% paddingLeft=10
questions:question1 /
questions:question2 /
questions:question3 /
questions:question4 /
/mx:ViewStack
Re: [flexcoders] Moving a viewStack through actionscript
If I am understanding your code correctly, you actually want to call
test1(parent).checkSingle instead of testMod. The reason is because you
are instantiating a brand new, and unrelated, test1 component with
public var testMod:test1 = new test1();
You might be able to do
public var testMod:test1 = test1(parent);
casting the variable to the type test1.
If it's a simple app you are working on, you can do this kind of tightly
coupled design. By that I mean, your question1 component knows about
your test1 component. If it's a more complex app though, you may want to
look at decoupling your app. Otherwise this app will quickly become
inflexible and harder to maintain as it grows.
In this case, you could set up your question components to dispatch an
event that your test1 then listens to. That way question1 doesn't have
to be directly connected to parent.
I hope that makes sense!
Michael
Wally Kolcz wrote:
When I added the click=nextQuestion() it was triggered off the
selecting of a radio button and not the button. Here all the code I
have. It is telling me that the viewStack doesn't exist when I believe
it should.
test1.mxml
?xml version=1.0 encoding=utf-8?
mx:Module xmlns:mx=http://www.adobe.com/2006/mxml; layout=vertical
width=100% height=98%
xmlns:questions=com.ipexpert.questions.q1.*
creationComplete=initApp()
mx:Script
![CDATA[
import mx.core.Application;
public var testID:int = 1;
public var currentQuestion:int = 0;
public function initApp():void {
}
public function checkSingle(answer:Object):void {
if (answer !=0) {
Application.application.score += 1;
}
currentQuestion += 1;
nextQuestionPlease();
}
public function nextQuestionPlease():void {
}
]]
/mx:Script
mx:ViewStack id=questionsVS width=98% height=100%
paddingLeft=10
questions:question1 /
questions:question2 /
questions:question3 /
questions:question4 /
/mx:ViewStack
/mx:Module
question1.mxml
?xml version=1.0 encoding=utf-8?
mx:VBox xmlns:mx=http://www.adobe.com/2006/mxml; width=98%
height=98%
mx:Script
![CDATA[
import com.ipexpert.tests.test1;
public var testMod:test1 = new test1();
]]
/mx:Script
mx:Label fontWeight=bold text=1. Which layer(s) of the OSI
Reference Model provide(s) for internetwork connectivity? /
mx:RadioButtonGroup id=group1 /
mx:RadioButton paddingLeft=10 groupName=group1 label=Data
Link value=0 selected=true /
mx:RadioButton paddingLeft=10 groupName=group1
label=Physical value=0 /
mx:RadioButton paddingLeft=10 groupName=group1
label=Session value=0 /
mx:RadioButton paddingLeft=10 groupName=group1
label=Network value=1 /
mx:RadioButton paddingLeft=10 groupName=group1
label=Presentation value=0 /
mx:Button label=Next
click=testMod.checkSingle(group1.selectedValue) /
/mx:VBox
*From*: Michael Wills mich...@mawills.com
*Sent*: Monday, March 09, 2009 10:55 AM
*To*: flexcoders@yahoogroups.com
*Subject*: Re: [flexcoders] Moving a viewStack through actionscript
Hey there Wally,
You can get access to the currently selected viewstack, and also set it,
through selectedIndex. So your initial declaration would be like
mx:ViewStack id=questionVS etc... selectedIndex=0
click=nextQuestion()
and in your function nextQuestion you can increment the selectedIndex.
I'd have to check but I think you can find the number of items in your
viewStack with numChildren. That would give you your max value to finish
your quiz or handle the end how you would like.
You can find more about what you can do with viewstacks in the docs:
http://livedocs.adobe.com/flex/3/langref/mx/containers/ViewStack.html
http://livedocs.adobe.com/flex/3/langref/mx/containers/ViewStack.html
Hope that helps!
Michael
Wally Kolcz wrote:
I have a test that I want to walk through the questions using a
function. How can I set the inital value of the ViewStack
(questionsVS) to 0 and then increment it by one each time someone
clicks a button?
mx:ViewStack id=questionsVS width=98% height=100%
paddingLeft=10
questions:question1 /
questions:question2 /
questions:question3 /
questions:question4 /
/mx:ViewStack
Re: [flexcoders] Moving a viewStack through actionscript
Wow...its a 'simple' one time create app.
All I want to do is when the user selects an answer on the question1.mxml
component, they can click a button, pass the value of the radio button to the
test1 module's checkSingle() method and then move to the next question in the
test1 module's stack.
When I changed the function call on the button of question1.mxml to
test1(parent).checkSingle(group1.selectedValue);
mx:Button label=Next
click=test1(parent).checkSingle(group1.selectedValue) /
I get this error:
TypeError: Error #1034: Type Coercion failed: cannot convert
mx.containers::viewst...@6563ae1 to com.ipexpert.tests.test1.
at
com.ipexpert.questions.q1::question1/___question1_Button1_click()[D:\wkolcz\My
Documents\Flex Builder
3\IPExpertBrainBuster\src\com\ipexpert\questions\q1\question1.mxml:21]
Here is checkSingle() and nextQuestionPlease()
public function checkSingle(answer:Object):void {
if (answer !=0) {
Application.application.score += 1;
}
currentQuestion += 1;
nextQuestionPlease();
}
public function nextQuestionPlease():void {
questionsVS.selectedIndex=currentQuestion;
}
From: Michael Wills mich...@mawills.com
Sent: Monday, March 09, 2009 11:44 AM
To: flexcoders@yahoogroups.com
Subject: Re: [flexcoders] Moving a viewStack through actionscript
If I am understanding your code correctly, you actually want to call
test1(parent).checkSingle instead of testMod. The reason is because you
are instantiating a brand new, and unrelated, test1 component with
public var testMod:test1 = new test1();
You might be able to do
public var testMod:test1 = test1(parent);
casting the variable to the type test1.
If it's a simple app you are working on, you can do this kind of tightly
coupled design. By that I mean, your question1 component knows about
your test1 component. If it's a more complex app though, you may want to
look at decoupling your app. Otherwise this app will quickly become
inflexible and harder to maintain as it grows.
In this case, you could set up your question components to dispatch an
event that your test1 then listens to. That way question1 doesn't have
to be directly connected to parent.
I hope that makes sense!
Michael
Wally Kolcz wrote:
When I added the click=nextQuestion() it was triggered off the
selecting of a radio button and not the button. Here all the code I
have. It is telling me that the viewStack doesn't exist when I believe
it should.
test1.mxml
?xml version=1.0 encoding=utf-8?
mx:Module xmlns:mx=http://www.adobe.com/2006/mxml; layout=vertical
width=100% height=98%
xmlns:questions=com.ipexpert.questions.q1.*
creationComplete=initApp()
mx:Script
![CDATA[
import mx.core.Application;
public var testID:int = 1;
public var currentQuestion:int = 0;
public function initApp():void {
}
public function checkSingle(answer:Object):void {
if (answer !=0) {
Application.application.score += 1;
}
currentQuestion += 1;
nextQuestionPlease();
}
public function nextQuestionPlease():void {
}
]]
/mx:Script
mx:ViewStack id=questionsVS width=98% height=100%
paddingLeft=10
questions:question1 /
questions:question2 /
questions:question3 /
questions:question4 /
/mx:ViewStack
/mx:Module
question1.mxml
?xml version=1.0 encoding=utf-8?
mx:VBox xmlns:mx=http://www.adobe.com/2006/mxml; width=98%
height=98%
mx:Script
![CDATA[
import com.ipexpert.tests.test1;
public var testMod:test1 = new test1();
]]
/mx:Script
mx:Label fontWeight=bold text=1. Which layer(s) of the OSI
Reference Model provide(s) for internetwork connectivity? /
mx:RadioButtonGroup id=group1 /
mx:RadioButton paddingLeft=10 groupName=group1 label=Data
Link value=0 selected=true /
mx:RadioButton paddingLeft=10 groupName=group1
label=Physical value=0 /
mx:RadioButton paddingLeft=10 groupName=group1
label=Session value=0 /
mx:RadioButton paddingLeft=10 groupName=group1
label=Network value=1 /
mx:RadioButton paddingLeft=10 groupName=group1
label=Presentation value=0 /
mx:Button label=Next
click=testMod.checkSingle(group1.selectedValue) /
/mx:VBox
--
*From*: Michael Wills mich...@mawills.com
*Sent*: Monday, March
Re: [flexcoders] Moving a viewStack through actionscript
Hi Wally, sorry I missed the hierarchy there. You have checkSingle on
the module and not the Viewstack. In that case, you should be able to do
parent.parent.checkSingle and leave out the cast as test1. So
public var testMod:Object = parent.parent;
The last one failed because it was trying to convert a viewstack into a
test1 which of course isn't a viewstack. But I'm not sure about this one
because the parent.parent is a module. You could also forgo using the
testMod variable and in your click declaration instead of
click=testMod.checkSingle(group1.selectedValue)
use
click=parent.parent.checkSingle(group1.selectedValue) /
Hopefully that'll work for you.
If you have a little time to invest, and if you may be doing more Flex
apps in the future, even though this one is not going to be a full-on
huge app, I'd learn about dispatching custom events. It's not that
complicated but it takes some time to understand. It would save some of
the hassle you're trying to do of course at the expense of a new and
different kind of hassle. :-)
Michael
Wally Kolcz wrote:
Wow...its a 'simple' one time create app.
All I want to do is when the user selects an answer on the
question1.mxml component, they can click a button, pass the value of
the radio button to the test1 module's checkSingle() method and then
move to the next question in the test1 module's stack.
When I changed the function call on the button of question1.mxml to
test1(parent).checkSingle(group1.selectedValue); mx:Button
label=Next click=test1(parent).checkSingle(group1.selectedValue) /
I get this error:
TypeError: Error #1034: Type Coercion failed: cannot convert
mx.containers::viewst...@6563ae1 to com.ipexpert.tests.test1.
at
com.ipexpert.questions.q1::question1/___question1_Button1_click()[D:\wkolcz\My
Documents\Flex Builder
3\IPExpertBrainBuster\src\com\ipexpert\questions\q1\question1.mxml:21]
Here is checkSingle() and nextQuestionPlease()
public function checkSingle(answer:Object):void {
if (answer !=0) {
Application.application.score += 1;
}
currentQuestion += 1;
nextQuestionPlease();
}
public function nextQuestionPlease():void {
questionsVS.selectedIndex=currentQuestion;
}
*From*: Michael Wills mich...@mawills.com
*Sent*: Monday, March 09, 2009 11:44 AM
*To*: flexcoders@yahoogroups.com
*Subject*: Re: [flexcoders] Moving a viewStack through actionscript
If I am understanding your code correctly, you actually want to call
test1(parent).checkSingle instead of testMod. The reason is because you
are instantiating a brand new, and unrelated, test1 component with
public var testMod:test1 = new test1();
You might be able to do
public var testMod:test1 = test1(parent);
casting the variable to the type test1.
If it's a simple app you are working on, you can do this kind of tightly
coupled design. By that I mean, your question1 component knows about
your test1 component. If it's a more complex app though, you may want to
look at decoupling your app. Otherwise this app will quickly become
inflexible and harder to maintain as it grows.
In this case, you could set up your question components to dispatch an
event that your test1 then listens to. That way question1 doesn't have
to be directly connected to parent.
I hope that makes sense!
Michael
Wally Kolcz wrote:
When I added the click=nextQuestion() it was triggered off the
selecting of a radio button and not the button. Here all the code I
have. It is telling me that the viewStack doesn't exist when I believe
it should.
test1.mxml
?xml version=1.0 encoding=utf-8?
mx:Module xmlns:mx=http://www.adobe.com/2006/mxml
http://www.adobe.com/2006/mxml layout=vertical
width=100% height=98%
xmlns:questions=com.ipexpert.questions.q1.*
creationComplete=initApp()
mx:Script
![CDATA[
import mx.core.Application;
public var testID:int = 1;
public var currentQuestion:int = 0;
public function initApp():void {
}
public function checkSingle(answer:Object):void {
if (answer !=0) {
Application.application.score += 1;
}
currentQuestion += 1;
nextQuestionPlease();
}
public function nextQuestionPlease():void {
}
]]
/mx:Script
mx:ViewStack id=questionsVS width=98% height=100%
paddingLeft=10
questions:question1 /
questions:question2 /
questions:question3 /
questions:question4 /
/mx:ViewStack
/mx:Module
question1.mxml
?xml version=1.0 encoding=utf-8?
mx:VBox xmlns:mx=http://www.adobe.com/2006/mxml
http://www.adobe.com/2006/mxml width=98%
height=98%
mx:Script
![CDATA[
import com.ipexpert.tests.test1;
public var testMod:test1 = new test1();
]]
/mx:Script
mx:Label fontWeight=bold text=1. Which layer(s) of the OSI
Reference Model provide(s) for internetwork connectivity? /
mx:RadioButtonGroup id=group1
RE: [flexcoders] Moving a viewStack through actionscript
, I'd learn about dispatching custom events. It's not that complicated but it takes some time to understand. Raising some events from the question components strikes me as being a whole lot easier than dealing with addressing all the different objects through the heirarchy! But then when I first started out with flex I didn't know that and tried to do pretty well the same sort of thing. You could probably google and read enough on custom events to do what you need in an hour or two, you'd more than likely spend much more time trying to work out your current problems than that, I'd guess. Hth -Original Message- From: flexcoders@yahoogroups.com [mailto:flexcod...@yahoogroups.com] On Behalf Of Michael Wills Sent: 09 March 2009 22:20 To: flexcoders@yahoogroups.com Subject: Re: [flexcoders] Moving a viewStack through actionscript Hi Wally, sorry I missed the hierarchy there. You have checkSingle on the module and not the Viewstack. In that case, you should be able to do parent.parent.checkSingle and leave out the cast as test1. So public var testMod:Object = parent.parent; The last one failed because it was trying to convert a viewstack into a test1 which of course isn't a viewstack. But I'm not sure about this one because the parent.parent is a module. You could also forgo using the testMod variable and in your click declaration instead of click=testMod.checkSingle(group1.selectedValue) use click=parent.parent.checkSingle(group1.selectedValue) / Hopefully that'll work for you. If you have a little time to invest, and if you may be doing more Flex apps in the future, even though this one is not going to be a full-on huge app, I'd learn about dispatching custom events. It's not that complicated but it takes some time to understand. It would save some of the hassle you're trying to do of course at the expense of a new and different kind of hassle. :-) Michael Wally Kolcz wrote: Wow...its a 'simple' one time create app. All I want to do is when the user selects an answer on the question1.mxml component, they can click a button, pass the value of the radio button to the test1 module's checkSingle() method and then move to the next question in the test1 module's stack. __ This communication is from Primal Pictures Ltd., a company registered in England and Wales with registration No. 02622298 and registered office: 4th Floor, Tennyson House, 159-165 Great Portland Street, London, W1W 5PA, UK. VAT registration No. 648874577. This e-mail is confidential and may be privileged. It may be read, copied and used only by the intended recipient. If you have received it in error, please contact the sender immediately by return e-mail or by telephoning +44(0)20 7637 1010. Please then delete the e-mail and do not disclose its contents to any person. This email has been scanned for Primal Pictures by the MessageLabs Email Security System. __
