[flexcoders] Re: Tilelist in Flex 2 - what to use instead of getItemAt()?
Try using an ArrayCollection for your data provider instead of a
simple array.
--- In flexcoders@yahoogroups.com, "erinwyher" <[EMAIL PROTECTED]> wrote:
>
> Thanks for the suggestion, but it doesn't work :(. Do you need the
> latest version of Flex 2 for that to work? I didn't install the latest
> upgrade (2.1 I believe).
>
> When I tried it, I got the following error.
>
> TypeError: Error #1006: value is not a function.
> at test/clickedList()
> at test/___Button1_click()
>
> Also, in the debugger, IList(myTiles.dataProvider) cannot be evaluated,
> and neither can IList(myTiles.dataProvider).getItemAt(any_number)
>
> Any more ideas? I really need help with this and I appreciate any
> suggestions! Thank you.
>
> -Erin
>
> --- In flexcoders@yahoogroups.com, "bhaq1972" wrote:
> >
> > the getItemAt() function is available but not like the flex 1.5 way.
> >
> > you can do the following
> >
> > import mx.collections.IList;
> >
> > public function clickedList():void {
> > //myTiles.getItemAt(1).testFunction();
> > IList(myTiles.dataProvider).getItemAt(1).testFunction();
> > etc
> >
> >
> >
> > --- In flexcoders@yahoogroups.com, "erinwyher" erinwyher@ wrote:
> > >
> > > In Flex 1.5, you use getItemAt() to call functions from the
> > children
> > > of the TileList, but that method no longer exists in F2. Any
> > > suggestions to do this?
> > >
> > > Here is some sample code:
> > >
> > > test.mxml:
> > >
> > > > > xmlns:mx="http://www.adobe.com/2006/mxml";
> > > xmlns:view="view.*"
> > > layout="absolute"
> > > creationComplete="doInit()">
> > >
> > >
> > >
> > >
> > >
> > > > itemRenderer="view.TestComponent"/>
> > >
> > >
> > >
> > > TestComponent.mxml
> > >
> > > http://www.adobe.com/2006/mxml"; width="40"
> > > height="30" backgroundColor="#FF3366">
> > >
> > >
> > >
> > >
> > >
> >
>
[flexcoders] Re: Scriptable data binding
Have a look at the BindingUtils in the flex docs. That will enable you to programatically bind properties in actionscript. Make sure the properties you're binding to in your model are marked [Bindable]. As for creating buttons in actionscript, you create them like any other object and use the container's addChild and/or addChildAt methods:
[flexcoders] Re: Scriptable data binding
I should also mention you're going to want to be careful with this, because if you're binding a lot of strings and then you change the model they're bound to you're going to take a big lump on performance when those strings change and every label in the application has to have it's label property refreshed.
[flexcoders] Re: flex authenticating and sessions...
What I do is this: authenticate the user's ID and password. If the credentials check out, I generate a UUID token which I then send back to the client. The database table logs the token, the user ID it belongs to, and a timestamp representing the last time the token was used. On subsequent calls to the server, the token is passed along as a parameter. Before filling a request, the server side components all pass the token they receive to a security component which validates the token against the database table, checks the timestamp is within a given timeout window, and updates the last-used timestamp if everything checks out. Everything goes over SSL. --- In flexcoders@yahoogroups.com, "ripe101" <[EMAIL PROTECTED]> wrote: > > Nick, > > Thanks for the reply... > One question, if you are using SSL, why are you also encrypting the data through the > application? > > I also saw mention in several presentations that Flex apps are being used by financial > institutions, so this must have been tackled already in an "enterprise" security setting. Is it > a full custom activity to implement strong security for flex applications? > > Thanks > JK > > > > > --- In flexcoders@yahoogroups.com, "Nick Collins" wrote: > > > > The way I have been doing it, while admittedly probably not best, is this: > > > > I have all my roles and user information in my database. When the user types > > in their username and password, it is encrypted, sent to the CFC which > > decrypts it, and runs a query against the database. If the authentication is > > successful, it ecrypts and returns the users data (name, role, etc.) to the > > flex frontend, which then decrypts it and displays the information they have > > access to. The roles table of my database has flags for different sections > > of the app, and it has to return a positive value to open up access to view, > > or to edit, that section. The encryption key for the AES encryption is > > stored in an external XML file and is read in when the app loads. > > Additionally, I send the data via SSL. > > > > Is it hacker-proof, probably not, but what is? It at least makes it enough > > of a pain that I haven't had any problems. > > > > On 4/2/07, ripe101 wrote: > > > > > > OK, I have only found several posts asking, and many answers that don't > > > seem to really > > > address the issue. > > > > > > How is user authentication and session management handled best in Flex? > > > Taking into > > > consideration the following: > > > > > > * All business logic is server side and available only to an authenticated > > > user (and only the > > > components they have access to). > > > * Cannot reverse engineer the flash file to gain access to the server > > > side. > > > * Each server side call must be authenticated. > > > * Preferably the main application is not downloaded until the user is > > > authenticated. > > > > > > I saw suggestions on authenticating the user and then storing the roles on > > > the client, this > > > seems very insecure, as the user could potentially write their own app and > > > stick roles in > > > that client side variable. > > > > > > I got the few books on Flex that are out there, but none of them really > > > cover this critical > > > issue. Maybe I'm missing something basic? > > > > > > Thanks > > > JK > > > > > > > > > > > >
[flexcoders] Re: rendering checkboxes with as3 instead of mxml?
--- In flexcoders@yahoogroups.com, "blc187" <[EMAIL PROTECTED]> wrote: > The problem comes in when I want to add functionality on toggle. > I can't type cbox.click = updateFld and I'm not sure what events I > can listen for on it. > > Little help on how to handle this? > Create an actionscript class that extends CheckBox, put your custom code in there, and then create instances of that class instead of programatically setting up checkboxes.
[flexcoders] Re:
--- In flexcoders@yahoogroups.com, "flexjeremy" <[EMAIL PROTECTED]> wrote: >One last thing if I > were getting a value out of the database is there a way to say that > item is selected? I've written a class that allows you to data-bind a combo similar to how you bind a text field.. You set the valueField propertie on an instance of this component to the field in the dataProvider that you're using as the "data" or key field, then you bind the bindableValue property to your dataModel in both directions. So, saw you have a form that you're using to track customer's addresses, and this form is backed by a customerAddress object with properties like "city", "state", and "zipCode". You also have an ArrayCollection with state names and abbreviations - states.stateName and states.stateCode.. You would set the combo's dataProvider to states, and it's labelField to stateName. For the custom properties, you set the valueField property to stateCode, and then two-way bind the bindableValue property to customerAddress.state. Any time the user selects a new state from the combo, the component will update the bindableValue property with the corresponding valueField value - data binding changes it in your model. When the model changes programmatically, eg from the result of a remoting call, data binding will update bindableValue from the model.. The propertyChange event is issued and caught by the component, and it calls code exactly like what's been posted to locate the item with the corresponding key. Code: http://www.adobe.com/2006/mxml"; change="onChange(event)" creationComplete="setup()">
[flexcoders] Re: Flex -> CFC access question
--- In flexcoders@yahoogroups.com, "Robert Chyko" <[EMAIL PROTECTED]> wrote: > > My Flex app is hitting a ColdFusion backend. If I call a function whose > access is set to "remote", everything works as expected. If that remote > function calls a "private" accessible function within the same .cfc > using the "this" keyword, it cannot find the function. If I don't use > the "this" keyword it works fine. Actually, your problem is not unique to accessing a method from Flex and it's got nothing to do with instantiation.. It's a scope issue. The scope names applied to the properties and methods of a cfc are confusing. Anything marked as public or remote will show in the "this" scope. Anything private is in the variables scope or the "no" scope (no prefix). So, if you're trying to call a private method using this.methodName() you will get an error because the UDF isn't defined in the public (this) scope.
[flexcoders] Re: Authentication - Kerberos
Java has a class for dealing with Kerberos - http://java.sun.com/j2se/1.4.2/docs/api/javax/security/auth/kerberos/package-summary.html Have a look at that, as it should be pretty straightforward to use it from CF. --- In flexcoders@yahoogroups.com, "mindmillmedia" <[EMAIL PROTECTED]> wrote: > > Has anyone had any experience authenticating via a Kerberos server in > a Flex application (with a Coldfusion MX7 Enterprise Backend)? It is > hard for me to even find examples of Coldfusion + Kerberos. I am on a > machine that is Kerberized and I also have mod_auth_kerb. > > I have one inefficient way that I can use now - but the response time > is horrendous. > > Any ideas? > > David >
[flexcoders] Constrain where a popup can be dragged?
Hello all. Is there a way to constrain where a user can drag a popup? I have a sort of MDW application which has the application's controls on the left, and the reports the user works with in popup windows on the right. I want to make it so the user cannot drag the reports on top of the navigation. Thanks!
