Can't add to display list from a class

in my Main.as file, this works as expected:
var t:TextField = new TextField();
t.text = "hello in main";
addChild(t);
However, when I create an instance of a class, and I have
that same code in the constructor of that class, the text doesn't
show up. I am creating the text field variable at the class level,
not the contstructor level, so I think the variable should still
hang around.
Do I have to get an instance of the stage, or something?
thanks

I don't know anything about your application but there are at
least two ways to add an instance from within other class:
1. stage.addChild(t)
2. Instantiate the class that creates text field --> add
this instance to the display list of where you instantiated it
(given that you class that creates the text field is a display ob
ject too).
Sorry, I cannot be more specific unless I know more about
your architecture and logic.

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Problem adding to the display list from a class

If I try to convert as3 in an mxml file into a class file and
create an instance of the class, I am unable to add the instance to
the display list. The original mxml file is at the bottom of the
page. The modified mxml file and its associated class are below.
The problem is that I cannot use addChild(myComponent); So how to I
add the UIComponent to the Display list?
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="
http://www.adobe.com/2006/mxml"
layout="absolute" creationComplete="init()">
<mx:Script>
<![CDATA[
import LoadSwf
private var myLoader:LoadSwf
public function init():void{
myLoader=new LoadSwf()
]]>
</mx:Script>
</mx:Application>
Class:
package{
import flash.display.MovieClip;
import com.adobe.viewsource.ViewSource;
import flash.events.Event
import mx.core.UIComponent
import flash.display.Loader
import flash.events.TimerEvent;
import flash.events.StatusEvent
import flash.net.LocalConnection
import flash.net.URLRequest
import flash.net.URLVariables
import flash.utils.Timer;
public class LoadSwf{
private var request:URLRequest
private var loader:Loader = new Loader();
private var conn:LocalConnection = new LocalConnection();
private var myComponent:UIComponent=new UIComponent();
private var swfTimer:Timer;
private var myParameters:URLVariables ;
public function LoadSwf(){
request= new URLRequest("Login.swf");
myParameters= new URLVariables()
myParameters.loginID = "101";
myComponent.addChild(loader);
loader.contentLoaderInfo.addEventListener(Event.COMPLETE,
finishedLoading);
loader.load(request);
private function finishedLoading(e:Event):void{
//PROBLEM IN THE FOLLOWING LINE!!!!!!!
addChild(myComponent);
swfTimer = new Timer(10);
swfTimer.addEventListener(TimerEvent.TIMER,sendData);
swfTimer.start();
private function sendData(e:Event):void{
conn.addEventListener(StatusEvent.STATUS, onStatus);
conn.send("myConnection", "lcHandler",
myParameters.loginID);
private function onStatus(event:StatusEvent):void {
if (event.level=="status") {
trace("LocalConnection connected");
swfTimer.stop();
}else if (event.level=="error"){
trace("FAILED to connect")
}

"SiHoop" <[email protected]> wrote in
message
news:[email protected]...
> If I try to convert as3 in an mxml file into a class
file and create an
> instance of the class, I am unable to add the instance
to the display
> list. The
> original mxml file is at the bottom of the page. The
modified mxml file
> and its
> associated class are below. The problem is that I cannot
use
> addChild(myComponent); So how to I add the UIComponent
to the Display
> list?
>
> <?xml version="1.0" encoding="utf-8"?>
> <mx:Application xmlns:mx="
http://www.adobe.com/2006/mxml"
> layout="absolute"
> creationComplete="init()">
> <mx:Script>
> <![CDATA[
> import LoadSwf
> private var myLoader:LoadSwf
> public function init():void{
> myLoader=new LoadSwf()
> }
> ]]>
> </mx:Script>
> </mx:Application>
> Class:
> package{
> import flash.display.MovieClip;
> import com.adobe.viewsource.ViewSource;
> import flash.events.Event
> import mx.core.UIComponent
> import flash.display.Loader
> import flash.events.TimerEvent;
> import flash.events.StatusEvent
> import flash.net.LocalConnection
> import flash.net.URLRequest
> import flash.net.URLVariables
> import flash.utils.Timer;
> public class LoadSwf{
> private var request:URLRequest
> private var loader:Loader = new Loader();
> private var conn:LocalConnection = new
LocalConnection();
> private var myComponent:UIComponent=new UIComponent();
> private var swfTimer:Timer;
> private var myParameters:URLVariables ;
> public function LoadSwf(){
> request= new URLRequest("Login.swf");
> myParameters= new URLVariables()
> myParameters.loginID = "101";
> myComponent.addChild(loader);
>
loader.contentLoaderInfo.addEventListener(Event.COMPLETE,
> finishedLoading);
> loader.load(request);
> }
> private function finishedLoading(e:Event):void{
> //PROBLEM IN THE FOLLOWING LINE!!!!!!!
> addChild(myComponent);
You didn't add this component to the Application, so I
wouldn't expect to
see anything you add in this component in the Application.
HTH;
Amy

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Noobie question: How do I add something to the display list from a non-main class?

I know how to use addChild() within the main class to add
something to the stage display list and have it appear on the
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So for example say I want to add some text (myTextField) to
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Can you have two detail lists from the basic list at the same time?

Hi
Can you have two detail lists from the basic list at the same time?
If yes how and if no why?
Thanks
Venkat

No   ... it is not   possible   of   2 detail list at   one time   from the basic list ...
you can increament   the SY-LSIND .... But you can not   display both the windows   at single time ...
it is possible to display 2 Detail list in ALV   ...... from one basic list   using the Blocked list concept    .
Sample Program on BLOCK LISTS
Report   zblock_list
* Declarations for BLOCK ALV DISPLAY
*--type pools
TYPE-POOLS:slis.
DATA:x_layout TYPE slis_layout_alv,
t_field TYPE slis_t_fieldcat_alv,
*--field catalog
x_fldcat LIKE LINE OF t_field,
*--to hold all the events
t_events TYPE slis_t_event,
x_events TYPE slis_alv_event,
t_sort TYPE slis_t_sortinfo_alv,
x_sort LIKE LINE OF t_sort ,
*--Print Layout
x_print_layout TYPE slis_print_alv.
*----Macro to add field catalog.
*field "text "length "tech "COL_POS "DATATYPE "DDIC_OUTPUTLEN
DEFINE add_catalog.
clear x_fldcat.
x_fldcat-fieldname = &1.
x_fldcat-seltext_m = &2.
x_fldcat-outputlen = &3.
x_fldcat-tech = &4.
x_fldcat-col_pos = &5.
x_fldcat-no_zero = 'X'.
x_fldcat-ddictxt = 'M'.
x_fldcat-datatype = &6.
x_fldcat-ddic_outputlen = &7.
if &6 = 'N'.
x_fldcat-lzero = 'X'.
endif.
*--build field catalog
append x_fldcat to t_field.
END-OF-DEFINITION.
*----- data declerations.
data: v_repid like sy-repid.
data: begin of itab occurs 0,
matnr like mara-matnr,
ernam like mara-ernam,
meins like mara-meins,
end of itab.
data: begin of jtab occurs 0,
matnr like makt-matnr,
maktx like makt-maktx,
end of jtab.
select matnr ernam meins
up to 20 rows
from mara
into table itab.
select matnr maktx
up to 20 rows
from makt
into table jtab.
v_repid = sy-repid.
*DISPLAY alv
* Initialize Block
call function 'REUSE_ALV_BLOCK_LIST_INIT'
exporting
i_callback_program = v_repid.
*Block 1:
*INITIALIZE
refresh t_field. clear t_field.
refresh t_events.
*field "text "length "tech "COL_POS "DATATYPE "DDIC_OUTPUTLEN
add_catalog:
'MATNR' 'Material' '18' '' '1' 'C' '18',
'ERNAM' 'Created By' '12' '' '2' 'C' '12',
'MEINS' 'Unit' '5' '' '3' 'C' '3'.
*--build table for events.
x_events-form = 'TOP_OF_LIST1'.
x_events-name = slis_ev_top_of_list.
append x_events to t_events.
call function 'REUSE_ALV_BLOCK_LIST_APPEND'
exporting
is_layout = x_layout
it_fieldcat = t_field
i_tabname = 'ITAB'
it_events = t_events
it_sort = t_sort
tables
t_outtab = itab
exceptions
program_error = 1
maximum_of_appends_reached = 2
others = 3.
if sy-subrc <> 0.
message id sy-msgid type sy-msgty number sy-msgno
with sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
endif.
*--BLOCK 2(SUMMARY REPORT)
*INITIALIZE
refresh t_field. clear t_field.
refresh t_events.
*field "text "length "tech "COL_POS "DATATYPE "DDIC_OUTPUTLEN
add_catalog:
'MATNR' 'Material' '20' '' '1' 'C' '18',
'MAKTX' 'Description' '40' '' '2' 'C' '40'.
*--build table for events.
x_events-form = 'TOP_OF_LIST2'.
x_events-name = slis_ev_top_of_list.
append x_events to t_events.
* Append table block.
call function 'REUSE_ALV_BLOCK_LIST_APPEND'
exporting
is_layout = x_layout
it_fieldcat = t_field
i_tabname = 'JTAB'
it_events = t_events
tables
t_outtab = jtab
exceptions
program_error = 1
maximum_of_appends_reached = 2
others = 3.
if sy-subrc <> 0.
message id sy-msgid type sy-msgty number sy-msgno
with sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
endif.
*--CALL FM TO DISPLAY THE BLOCK REPORT.
call function 'REUSE_ALV_BLOCK_LIST_DISPLAY'
* exporting
* is_print = x_print_layout
exceptions
program_error = 1
others = 2.
if sy-subrc <> 0.
message id sy-msgid type sy-msgty number sy-msgno
with sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
endif.
form top_of_list1.
skip 1.
write: 10 'List 1',
/5 '--------------------'.
skip 1.
format reset.
endform.
form top_of_list2.
skip 1.
write: 10 'List 2',
/5 '--------------------'.
skip 1.
format reset.
endform.
reward points if it is usefull ....
Girish

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