Wow, Many thanks everyone! This is really useful information, I can certainly use this information in all my code and it makes some key things clear for me.
be well, Hoyt --- In [email protected], "Gordon Smith" <[EMAIL PROTECTED]> wrote: > > Thanks. I also forgot > > > > o is Foo // type-checking > > > > Gordon Smith > > > > ________________________________ > > From: [email protected] [mailto:[EMAIL PROTECTED] On > Behalf Of Rick Winscot > Sent: Wednesday, April 23, 2008 3:44 PM > To: [email protected] > Subject: RE: [flexcoders] Re: how do I loop thru dynamically created UI > components? > > > > Arrrr... ye forgot - > > > > o as Foo //latent type casting > > > > > > Rick Winscot > > > > > > From: [email protected] [mailto:[EMAIL PROTECTED] On > Behalf Of Gordon Smith > Sent: Wednesday, April 23, 2008 4:23 PM > To: [email protected] > Subject: RE: [flexcoders] Re: how do I loop thru dynamically created UI > components? > > > > When you cast like this > > > > var foo:Foo = Foo(whatever); > > > > the syntax looks like a constructor-without-the-'new', but it actually > has nothing to do with a constructor. The name of a class can be used in > various unrelated ways: > > > > new Foo() // constructs an instance of Foo > > > > Foo(o) // casts o to type Foo > > > > o = Foo // sets o to a reference to class Foo > > > > Gordon Smith > > Adobe Flex SDK Team > > > > ________________________________ > > From: [email protected] [mailto:[EMAIL PROTECTED] On > Behalf Of hoytlee2000 > Sent: Wednesday, April 23, 2008 1:31 AM > To: [email protected] > Subject: [flexcoders] Re: how do I loop thru dynamically created UI > components? > > > > Hello Lee, > > Thanks! that typecasting line worked perfectly! > > It's interesting I tried to import just the HBox specifically and I > still got the error message > in the IDE as: > > Implicit coercion of a value with static type > flash.display:DisplayObject to a possibly > unrelated type mx.containers:HBox. > > If I read the line correctly, I can TypeCast a Display Object by using > the constructor of the > UIComponent? > > Thanks, > hoyt > > --- In [email protected] <mailto:flexcoders%40yahoogroups.com> > , Lee <callistachan@> wrote: > > > > > > hmm that's odd... i'm coding a project right now and that's what i > use... but i don't > import everything (*)... hehe > > anyway, if you want typecasting, i usually do something like this: > > > > var str:String = > TextInput(HBox(vbox.getChildAt(i)).getChildAt(1)).text; > > > > let me know if it's not still working and i'll try to figure it out :) > > > > -Lee > > > > ----- Original Message ---- > > From: hoytlee2000 <hoytlee2000@> > > To: [email protected] <mailto:flexcoders%40yahoogroups.com> > > Sent: Wednesday, April 23, 2008 3:04:29 PM > > Subject: [flexcoders] Re: how do I loop thru dynamically created UI > components? > > > > Hello Lee, > > > > Yes I did, if you mean by using the statement > > > > import mx.containers.*; > > > > I think the problem is that the getChildAt() method returns a > DisplayObject, but I don't > > know how to cast it as an HBox or any other UIComponent. The > DisplayObject doesn't > > even have a getChildAt() method. > > > > If I could figure out how to cast the returned DisplayObject as a > particular UI component > > that would be great. Thanks. > > > > be well, > > Hoyt > > > > --- In [email protected] > <mailto:flexcoders%40yahoogroups.com> , Lee <callistachan@> wrote: > > > > > > did you import them? > > > > > > ----- Original Message ---- > > > From: hoytlee2000 <hoytlee2000@> > > > To: [email protected] <mailto:flexcoders%40yahoogroups.com> > > > > Sent: Tuesday, April 22, 2008 6:38:47 AM > > > Subject: [flexcoders] Re: how do I loop thru dynamically created UI > components? > > > > > > Unfortunately it didn't work, I get an error saying I am trying to > > > implicitly coerce a type not defined in Display Object. > > > > > > be well, > > > hoyt > > > > > > --- In [email protected] > <mailto:flexcoders%40yahoogroups.com> , Lee <callistachan@> wrote: > > > > > > > > Hi, I replied below =) > > > > > > > > -- Lee > > > > > > > > ----- Original Message ---- > > > > From: hoytlee2000 <hoytlee2000@> > > > > To: [email protected] > <mailto:flexcoders%40yahoogroups.com> > > > > Sent: Monday, April 21, 2008 5:21:13 PM > > > > Subject: [flexcoders] how do I loop thru dynamically created UI > > > components? > > > > > > > > Hello, > > > > > > > > I've created a button to let users add text input fields to the > app > > > so they can add additional information. That works fine, however I > am > > > at a > > > > lost on how to loop thru the newly added fields to get the input > so > > > I can send it to a php script to store in a sqlite database. I > > > thought I could > > > > iterate through the container using the numchild attr of the > > > enclosing container, but it returns a DisplayObject and that's where > I > > > get stuck. > > > > > > > > I don't know how to access the individual attrs (such as the .text > > > property) of the DisplayObject. I have the label and textinput > > > components > > > > wrapped in a hbox for formatting purposes. > > > > > > > > Also I noticed that when I try to set the id attr of the textfield > > > explicitly the getName method returns something entirely differemt > > > (see output > > > > after code below). > > > > > > > > Any help, tips, or web link would be appreciated. I'm stumped. > > > > > > > > Thanks, > > > > Hoyt > > > > > > > > my code: > > > > > > > > <?xml version="1.0" encoding="utf-8"?> > > > > <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml > <http://www.adobe.com/2006/mxml> " > > > layout="absolute"> > > > > <mx:Script> > > > > <![CDATA[ > > > > import mx.controls.Label; > > > > > > > > private var numCount:int = 0; > > > > > > > > // this adds text input fields, it also adds an hbox > > > for formating > > > > private function addField():void { > > > > var newHbox:HBox = new HBox(); > > > > var newLabel:Label = new Label(); > > > > var newTextInput:TextInput = new TextInput(); > > > > > > > > numCount = numCount + 1; > > > > debugField.text = numCount + "\n"; > > > > > > > > newLabel.text = "Field " + numCount; > > > > newLabel.width = 50; > > > > newTextInput.width = 400; > > > > > > > > newHbox.id = "bbox" + numCount; > > > > debugField.text += newHbox.id + "\n"; > > > > > > > > newHbox.addChild(newLabel); > > > > newHbox.addChild(newTextInput); > > > > > > > > vbox.addChild(newHbox); > > > > } > > > > > > > > // I use this function to test output and this is > > > where I need help. I want to > > > > // iterate through all the text input fields and read > > > the user input > > > > private function getInfo():void { > > > > var i:int = 0; > > > > for (i = 0; i < vbox.numChildren ; i++) { > > > > var tmpName:String = "hbox" + i; > > > > var tmpObj:DisplayObject = vbox.getChildAt(i); > > > > -------- > > > > try something like this instead of the previous line (although > this > > > is kinda longer than typecasting directly) > > > > > > > > var tmpObj:HBox = vbox.getChildAt(i); > > > > var tmpTxt:TextInput = tmpObj.getChildAt(1);//because the text > input > > > is the 2nd child you added > > > > var str:String = tmpTxt.text; > > > > -------- > > > > debugField.text += "Index is: " + i + "\n"; > > > > debugField.text += tmpObj.toString() + "\n"; > > > > > > > } > > > > } > > > > > > > > ]]> > > > > </mx:Script> > > > > <mx:Panel id="myPanel" x="460" y="10" width="513" height="297" > > > layout="absolute"> > > > > <mx:VBox id="vbox" x="10" y="10" height="237" width="473"> > > > > <mx:HBox id="hbox0" width="528" backgroundColor="#0A7C55"> > > > > <mx:Label text="Url" width="49" color="#FFFFFF" > > > textAlign="center" height="20"/> > > > > <mx:TextInput width="412"/> > > > > </mx:HBox> > > > > </mx:VBox> > > > > </mx:Panel> > > > > > > > > <mx:TextArea x="44" y="162" height="145" id="debugField" > > > wordWrap="true" width="408"/> > > > > > > > > <mx:Button x="44" y="315" label="GetInfo" click="getInfo();"/> > > > > > > > > </mx:Application> > > > > > > > > > > > > This is the printout I get from the code: > > > > > > > > Index is: 0 > > > > sandbox0.myPanel.vbox.hbox0 > > > > Index is: 1 > > > > sandbox0.myPanel.vbox.HBox89 > > > > Index is: 2 > > > > sandbox0.myPanel.vbox.HBox96 > > > > Index is: 3 > > > > sandbox0.myPanel.vbox.HBox104 > > > > > > > > why is the id of the added HBox's Hbox89, HBox96, and HBox104? > > > instead of Hbox1, Hbox2, Hbox3? > > > > > > > > > > > > ------------------------------------ > > > > > > > > -- > > > > Flexcoders Mailing List > > > > FAQ: > http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt > <http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt> > > > > Search Archives: > > > http://www.mail-archive.com/flexcoders%40yahoogroups.comYahoo > <http://www.mail-archive.com/flexcoders%40yahoogroups.comYahoo> ! Groups > > > Links > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > __________________________________________________________ > > > > Be a better friend, newshound, and > > > > know-it-all with Yahoo! Mobile. Try it now. > > > http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ > <http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ> > > > > > > > > > > > > > > > > ------------------------------------ > > > > > > -- > > > Flexcoders Mailing List > > > FAQ: > http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt > <http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt> > > > Search Archives: http://www.mail- > archive.com/flexcoders%40yahoogroups.comYahoo! > > Groups Links > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > __________________________________________________________ > > > Be a better friend, newshound, and > > > know-it-all with Yahoo! Mobile. Try it now. > > http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ > <http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ> > > > > > > > > > > > > > ------------------------------------ > > > > -- > > Flexcoders Mailing List > > FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt > <http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt> > > Search Archives: > http://www.mail-archive.com/flexcoders%40yahoogroups.comYahoo > <http://www.mail-archive.com/flexcoders%40yahoogroups.comYahoo> ! > Groups Links > > > > > > > > > > > > > > > > > > > > > __________________________________________________________ > > Be a better friend, newshound, and > > know-it-all with Yahoo! Mobile. Try it now. > http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ > <http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ> > > >
