RE: [flexcoders] Proper way to ensure components in a different state are created
If you use includeIn or excludeFrom, then itemCreationPolicy becomes available and you can set it to immediate - imageComponent includeIn=State 1 itemCreationPolicy=immediate id=imcomp / Then in code you could in imcomp.currentState = myDesiredState, even before State 1 has been used. Hope this helps, Derek From: flexcoders@yahoogroups.com [mailto:flexcod...@yahoogroups.com] On Behalf Of dorkie dork from dorktown Sent: Wednesday, September 01, 2010 5:15 AM To: flexcoders@yahoogroups.com Subject: [flexcoders] Proper way to ensure components in a different state are created When I try to access components that are in a different state on the line after I set the current state I get this error, TypeError: Error #1009: Cannot access a property or method of a null object reference. // code currentState = NOTES; noteComponent.text = value; // noteComponent exists in NOTES state and is not created yet I know this is because of the Flex invalidation cycle and I'm aware I could use databinding and I know I could use callLater. But if I needed to create the components immediately for only the state I'm going to how would I do that? Custom Component: Group states State 1 State 2 State 3 /states imageComponent includeIn=State 1/ videoComponent includeIn=State 2/ noteComponent includeIn=State 3/ /Group JP __ Information from ESET NOD32 Antivirus, version of virus signature database 5414 (20100901) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com image001.jpgimage002.jpg
Re: [flexcoders] Proper way to ensure components in a different state are created
Yeah, I created a test project and itemCreationPolicy immediate and deferred both work. But in my application only immediate works. It seems like currentState is deferring creating the components for some odd reason. On Wed, Sep 1, 2010 at 5:43 AM, f...@guitar-learning.com wrote: If you use includeIn or excludeFrom, then itemCreationPolicy becomes available and you can set it to “immediate” – imageComponent includeIn=State 1 itemCreationPolicy=immediate id=”imcomp” / Then in code you could in imcomp.currentState = “myDesiredState”, even before State 1 has been used. Hope this helps, Derek *From:* flexcoders@yahoogroups.com [mailto:flexcod...@yahoogroups.com] *On Behalf Of *dorkie dork from dorktown *Sent:* Wednesday, September 01, 2010 5:15 AM *To:* flexcoders@yahoogroups.com *Subject:* [flexcoders] Proper way to ensure components in a different state are created When I try to access components that are in a different state on the line after I set the current state I get this error, TypeError: Error #1009: Cannot access a property or method of a null object reference. // code currentState = NOTES; noteComponent.text = value; // noteComponent exists in NOTES state and is not created yet I know this is because of the Flex invalidation cycle and I'm aware I could use databinding and I know I could use callLater. But if I needed to create the components immediately for only the state I'm going to how would I do that? Custom Component: Group states State 1 State 2 State 3 /states imageComponent includeIn=State 1/ videoComponent includeIn=State 2/ noteComponent includeIn=State 3/ /Group JP __ Information from ESET NOD32 Antivirus, version of virus signature database 5414 (20100901) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com __ Information from ESET NOD32 Antivirus, version of virus signature database 5414 (20100901) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com
Re: [flexcoders] Proper way to ensure components in a different state are created
You could add a bindable var, e.g. noteText, and set the text property in
the mxml tag to {noteText}. Then you only have to assign the value to the
noteText variable.
Le 2010 9 1 10:48, dorkie dork from dorktown
dorkiedorkfromdorkt...@gmail.com a écrit :
When I try to access components that are in a different state on the
line after I set the current state I get this error,
TypeError: Error #1009: Cannot access a property or method of a null
object reference.
// code
currentState = NOTES;
noteComponent.text = value; // noteComponent exists in NOTES state and
is not created yet
I know this is because of the Flex invalidation cycle and I'm aware I
could use databinding and I know I could use callLater. But if I
needed to create the components immediately for only the state I'm
going to how would I do that?
Custom Component:
Group
states
State 1
State 2
State 3
/states
imageComponent includeIn=State 1/
videoComponent includeIn=State 2/
noteComponent includeIn=State 3/
/Group
JP
Re: [flexcoders] Proper way to ensure components in a different state are created
Thanks, I'll do that. My main quest was trying to find the equivalent of
createComponentFromDescriptors in Flex 4 spark components. If I find
anything I'll post back.
On Wed, Sep 1, 2010 at 6:19 PM, Haykel BEN JEMIA hayke...@gmail.com wrote:
You could add a bindable var, e.g. noteText, and set the text property in
the mxml tag to {noteText}. Then you only have to assign the value to the
noteText variable.
Le 2010 9 1 10:48, dorkie dork from dorktown
dorkiedorkfromdorkt...@gmail.com a écrit :
When I try to access components that are in a different state on the
line after I set the current state I get this error,
TypeError: Error #1009: Cannot access a property or method of a null
object reference.
// code
currentState = NOTES;
noteComponent.text = value; // noteComponent exists in NOTES state and
is not created yet
I know this is because of the Flex invalidation cycle and I'm aware I
could use databinding and I know I could use callLater. But if I
needed to create the components immediately for only the state I'm
going to how would I do that?
Custom Component:
Group
states
State 1
State 2
State 3
/states
imageComponent includeIn=State 1/
videoComponent includeIn=State 2/
noteComponent includeIn=State 3/
/Group
JP
Re: [flexcoders] Proper way to ensure components in a different state are created
Arggh I forgot I have to set certain components visible,
currentState = note;
source = note.text; // databinding
note.visible = true;
border.visible = true;
border.y = note.y;
border.width = note.width;
I think this is impossible in Flex 4. I'm think my only option is to set
every component creation policy to immediate.
On Wed, Sep 1, 2010 at 10:44 PM, dorkie dork from dorktown
dorkiedorkfromdorkt...@gmail.com wrote:
Thanks, I'll do that. My main quest was trying to find the equivalent of
createComponentFromDescriptors in Flex 4 spark components. If I find
anything I'll post back.
On Wed, Sep 1, 2010 at 6:19 PM, Haykel BEN JEMIA hayke...@gmail.comwrote:
You could add a bindable var, e.g. noteText, and set the text property in
the mxml tag to {noteText}. Then you only have to assign the value to the
noteText variable.
Le 2010 9 1 10:48, dorkie dork from dorktown
dorkiedorkfromdorkt...@gmail.com a écrit :
When I try to access components that are in a different state on the
line after I set the current state I get this error,
TypeError: Error #1009: Cannot access a property or method of a null
object reference.
// code
currentState = NOTES;
noteComponent.text = value; // noteComponent exists in NOTES state and
is not created yet
I know this is because of the Flex invalidation cycle and I'm aware I
could use databinding and I know I could use callLater. But if I
needed to create the components immediately for only the state I'm
going to how would I do that?
Custom Component:
Group
states
State 1
State 2
State 3
/states
imageComponent includeIn=State 1/
videoComponent includeIn=State 2/
noteComponent includeIn=State 3/
/Group
JP
