Re: [Flashcoders] Object repository and instancing a object
Pascal FODOR wrote: Humm, looks like this is getting away from the question ;-) The problem with: if ( className != ) return false; instance = new className( valueObject ); return instance; Is that className is a string not a reference so new className() won't work. He you tried eval(className) as you suggested? Nah, I hacked it to together with a switch/case-block. Works fine. I dropped my Artificial Life idea and just implementated the A* Path finding algorithm in a isometric game field. :-) Works nice and easy. Yours, Weyert de Boer ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] Object repository and instancing a object
Hello Alan, You initialize a TileFactory; the TileFactory loads this XML; then if I call TileFactory.getTile(uniqueName), it scans the XML for the matching tile entry and draws the tile properties from that. Build and assist values for the tile, and return it, and you're all set -- without having to worry about instantiating classes from a string. Yes, this sounds like a better idea. Thanks. I have to admit that the current code is one big hack. Coming from Java, I was used to having a lot more freedom to instantiate classes dynamically, with Class.forName, but Flash is more friendly to other approches. Same here ;=) ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
[Flashcoders] Caret position coords
Is there a decent way of getting the _x / _y position of a caret in a text box? Somehow compare the x/y of the textfield with the caret index..? Have a hard time getting an exact value from this. - Andreas ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] Caret position coords
Easy... get the x,y in characters of the memo function getCharacterPosition( aMemo: TMemo ): TPoint begin Result.X := LongRec( SendMessage( aMemo.Handle, EM_GETSEL, 0, 0 ) ).Hi; Result.Y := SendMessage( aMemo.Handle, EM_LINEFROMCHAR, Result.X, 0 ); Result.X := Result.X - SendMessage(aMemo.Handle, EM_LINEINDEX, -1, 0); return Result; end; and get the x,y in pixels of the memo function getCharPositionInPixels( aMemo: TMemo ): TPoint var result: TPoint; begin result := aMemo.Perform( EM_POSFROMCHAR, WPARAM(@result), aMemo.SelStart); return result; end Not sure if the code is error free, though but are these api messages ;-) Yours, Weyert de Boer ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] Caret position coords
Ooh, this is the flashcoders mailing list. This code is useless! sorry. ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] Caret position coords
To answer the original question - there is no direct way to do this, although you can use the text-extent to get the x offset of the caret fairly easily in a single line textfield. On Jan 2, 2006, at 9:47 AM, Andreas Rønning wrote: Is there a decent way of getting the _x / _y position of a caret in a text box? Somehow compare the x/y of the textfield with the caret index..? Have a hard time getting an exact value from this. - Andreas ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
RE: [Flashcoders] Flash Player 8.5 - Illegal Operation caused by ?
Firefox 1.0.6 also reports many syntax errors: Error: syntax error Source File: http://www.ericd.net/new_css/sections/aspcomments/aspcomments.asp?blogid=113621728008762265count=1 Line: 1 Source Code: !DOCTYPE HTML PUBLIC -//W3C//DTD HTML 4.01 Transitional//EN Error: syntax error Source File: http://www.ericd.net/new_css/sections/aspcomments/aspcomments.asp?blogid=113597757803253823count=1 Line: 1 Source Code: !DOCTYPE HTML PUBLIC -//W3C//DTD HTML 4.01 Transitional//EN .. etc. Derek Vadneau -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Adrian Lynch Sent: Monday, January 02, 2006 12:06 PM To: Flashcoders mailing list Subject: RE: [Flashcoders] Flash Player 8.5 - Illegal Operation caused by ? Not sure about the Flash, but that page is full of JS errors on IE6. Ade ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] Flash Player 8.5 - Illegal Operation caused by ?
Not quite sure what those errors are yet, but I am more concerned with Flash barfing. edolecki On 1/2/06, Derek Vadneau [EMAIL PROTECTED] wrote: Firefox 1.0.6 also reports many syntax errors: Error: syntax error Source File: http://www.ericd.net/new_css/sections/aspcomments/aspcomments.asp?blogid=113621728008762265count=1 Line: 1 Source Code: !DOCTYPE HTML PUBLIC -//W3C//DTD HTML 4.01 Transitional//EN Error: syntax error Source File: http://www.ericd.net/new_css/sections/aspcomments/aspcomments.asp?blogid=113597757803253823count=1 Line: 1 Source Code: !DOCTYPE HTML PUBLIC -//W3C//DTD HTML 4.01 Transitional//EN .. etc. Derek Vadneau -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Adrian Lynch Sent: Monday, January 02, 2006 12:06 PM To: Flashcoders mailing list Subject: RE: [Flashcoders] Flash Player 8.5 - Illegal Operation caused by ? Not sure about the Flash, but that page is full of JS errors on IE6. Ade ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] Caret position coords
i remember doing this a few years ago, using — a loop (filling the textfield) and autoSize=true to determine if there was a line break (you could determine this in other ways) — and if _height old_height in the loop, do — letterCurrentY += LINE_HEIGHT then use getTextExtent() to get _x. i remember there was some margins and stuff inside the text field to take into account, but it worked. the problem is it can be hard to find out the constant LINE_HEIGHT. good luck, kalle On 1/2/06, Michael Bedar [EMAIL PROTECTED] wrote: To answer the original question - there is no direct way to do this, although you can use the text-extent to get the x offset of the caret fairly easily in a single line textfield. On Jan 2, 2006, at 9:47 AM, Andreas Rønning wrote: Is there a decent way of getting the _x / _y position of a caret in a text box? Somehow compare the x/y of the textfield with the caret index..? Have a hard time getting an exact value from this. - Andreas ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders -- inlovewith.com inlovewith ltd. kalle thyselius linnégatan 76, stockholm, sweden + 46 707 602 600 inlovewith you ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] Caret position coords
Whoa - dude, is that MFC or something? Alias On 1/2/06, Weyert de Boer [EMAIL PROTECTED] wrote: Easy... get the x,y in characters of the memo function getCharacterPosition( aMemo: TMemo ): TPoint begin Result.X := LongRec( SendMessage( aMemo.Handle, EM_GETSEL, 0, 0 ) ).Hi; Result.Y := SendMessage( aMemo.Handle, EM_LINEFROMCHAR, Result.X, 0 ); Result.X := Result.X - SendMessage(aMemo.Handle, EM_LINEINDEX, -1, 0); return Result; end; and get the x,y in pixels of the memo function getCharPositionInPixels( aMemo: TMemo ): TPoint var result: TPoint; begin result := aMemo.Perform( EM_POSFROMCHAR, WPARAM(@result), aMemo.SelStart); return result; end Not sure if the code is error free, though but are these api messages ;-) Yours, Weyert de Boer ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] Object repository and instancing a object
You guys know that you can instantiate classes dynamically (sort of) in
Flash, right?
class ClassFactory {
public static function getClass(name:String, args:Object):Object {
return new Function(eval(name))(args ? args : []);
}
}
/* USAGE
* //can be any referenced class
* var myClass = ClassFactory.getClass(org.flashcodersny.style.GradientFill,
args);
*/
As long as the class you're trying to instantiate exists in the _global
namespace, the above will work. To make sure it exists, just say its name:
class DeclareClassNames {
function DeclareClassNames() {
org.myClass1;
org.myClass2;
//and so on...
}
}
There have been a few threads on this subject recently...
Jim Kremens
On 1/2/06, Weyert de Boer [EMAIL PROTECTED] wrote:
Hello Alan,
You initialize a TileFactory; the TileFactory loads this XML; then if
I call TileFactory.getTile(uniqueName), it scans the XML for the
matching tile entry and draws the tile properties from that. Build
and assist values for the tile, and return it, and you're all set --
without having to worry about instantiating classes from a string.
Yes, this sounds like a better idea. Thanks. I have to admit that the
current code is one big hack.
Coming from Java, I was used to having a lot more freedom to
instantiate classes dynamically, with Class.forName, but Flash is more
friendly to other approches.
Same here ;=)
___
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http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
--
Jim Kremens
___
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Re: [Flashcoders] dataProvider questions
A dataProvider is a getter/setter property. It is typically an Array, but
can be an Object. Array's have their prototype changed when you use the v2
component framework. They have methods added to them, and these methods
make up the DataProvider API. This API is used to add data to the array,
and broadcast changes so components who use the dataProvider know what to do
when changes occur.
DataProviders are created to allow many different Views to show and operate
on data in the dataProvider.
Example:
a = [one, two, three];
my_list.dataProvider = a;
Your List on the stage called my_list will now show the 3 items in the
list.
If you threw that at a DataGrid, and the DataGrid was editable, you could
actually edit the items in the array. Additionally, those changes would be
broadcast to any other View that used a as the dataProvider. You cannot do
this with normal arrays, since doing this:
a.push(four);
Does nothing other than add data. This, however:
a.addItem(four);
Broacasts an event using EventDispatcher so all UIComponents who implement
the DataProvider API know what to do.
If you want to create compoenents that utilize the DataProvider, you have 2
chocies:
- implement a getter/setter property of dataProvider, and register for a
modelChanged event. When that occurs, redraw your component. Optionally,
you can support DataProvider API methods via proxy. Example:
public function addItemAt(index:Number, o:Object):Void
{
dataProvider.addItemAt(index, o);
}
The API is discussed heavily in the updated MX 2004 (7.2) documentation.
- The 2nd, and best way, is to utilize DataSelector. DataSelector is a
mixin, but I highly suggest you instead create an abstract base class
(meaning only created for the sake of extending it), use the DataSelector
mixin on the base class, and then extend the base class. The reason for
this is 2 fold: first, you have a LOT less code in your extended class since
the DataSelector mixin adds A LOT; second, you can listen for modelChanged
without using hacks.
DataSelector will do a bunch of things. Mainly:
- give your component dataProvider powers
- your component automatically implements the DataProvider API
- you get properties like selectedItem, selectedIndex, etc.
For more info, check out:
http://www.jessewarden.com/archives/2005/06/dataselector_da.html
http://www.jessewarden.com/archives/2005/10/using_dataselec.html
http://www.jessewarden.com/archives/2004/07/how_to_get_data.html
- Original Message -
From: Rich Rodecker [EMAIL PROTECTED]
To: Flashcoders mailing list flashcoders@chattyfig.figleaf.com
Sent: Monday, January 02, 2006 4:55 PM
Subject: [Flashcoders] dataProvider questions
I'm having a little trouble with dataProviders. I'm trying to search around
for info but I'm getting a little confused. I'm going to try and ask some
q's... if anyone can help me out, that would be great. I used to work with
it back in flash mx, but it looks like its changed a lot.
First, does anyone know of anyplace I can get some good solid info on
DataProvider? the documentation in mx04 doesnt really do it for me.
I am creating a custom component, and would like it to be data-aware. Looks
like I need to create a dataProvider property in my components class,
right? Now, how do I go about binding the dataProvider property to a
separate Model class (I want to bind it to a property of ModelLocator in
ARP, if anyone is familiar) -- am I actaully talking about two different
things here?. I would also like to be able to set the dataProvider from an
xml object too (in other instances of the component).
___
Flashcoders mailing list
Flashcoders@chattyfig.figleaf.com
http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
___
Flashcoders mailing list
Flashcoders@chattyfig.figleaf.com
http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] dataProvider questions
Sorry G, missed your 2nd question.
Unfortunately, an Array is the ONLY thing you can bind to using a
ModelLcoator approach (al la Cairngorm/ARP). So, this is technically the
de-facto way to do binding in Flash.
- Original Message -
From: JesterXL [EMAIL PROTECTED]
To: Flashcoders mailing list flashcoders@chattyfig.figleaf.com
Sent: Monday, January 02, 2006 5:08 PM
Subject: Re: [Flashcoders] dataProvider questions
A dataProvider is a getter/setter property. It is typically an Array, but
can be an Object. Array's have their prototype changed when you use the v2
component framework. They have methods added to them, and these methods
make up the DataProvider API. This API is used to add data to the array,
and broadcast changes so components who use the dataProvider know what to do
when changes occur.
DataProviders are created to allow many different Views to show and operate
on data in the dataProvider.
Example:
a = [one, two, three];
my_list.dataProvider = a;
Your List on the stage called my_list will now show the 3 items in the
list.
If you threw that at a DataGrid, and the DataGrid was editable, you could
actually edit the items in the array. Additionally, those changes would be
broadcast to any other View that used a as the dataProvider. You cannot do
this with normal arrays, since doing this:
a.push(four);
Does nothing other than add data. This, however:
a.addItem(four);
Broacasts an event using EventDispatcher so all UIComponents who implement
the DataProvider API know what to do.
If you want to create compoenents that utilize the DataProvider, you have 2
chocies:
- implement a getter/setter property of dataProvider, and register for a
modelChanged event. When that occurs, redraw your component. Optionally,
you can support DataProvider API methods via proxy. Example:
public function addItemAt(index:Number, o:Object):Void
{
dataProvider.addItemAt(index, o);
}
The API is discussed heavily in the updated MX 2004 (7.2) documentation.
- The 2nd, and best way, is to utilize DataSelector. DataSelector is a
mixin, but I highly suggest you instead create an abstract base class
(meaning only created for the sake of extending it), use the DataSelector
mixin on the base class, and then extend the base class. The reason for
this is 2 fold: first, you have a LOT less code in your extended class since
the DataSelector mixin adds A LOT; second, you can listen for modelChanged
without using hacks.
DataSelector will do a bunch of things. Mainly:
- give your component dataProvider powers
- your component automatically implements the DataProvider API
- you get properties like selectedItem, selectedIndex, etc.
For more info, check out:
http://www.jessewarden.com/archives/2005/06/dataselector_da.html
http://www.jessewarden.com/archives/2005/10/using_dataselec.html
http://www.jessewarden.com/archives/2004/07/how_to_get_data.html
- Original Message -
From: Rich Rodecker [EMAIL PROTECTED]
To: Flashcoders mailing list flashcoders@chattyfig.figleaf.com
Sent: Monday, January 02, 2006 4:55 PM
Subject: [Flashcoders] dataProvider questions
I'm having a little trouble with dataProviders. I'm trying to search around
for info but I'm getting a little confused. I'm going to try and ask some
q's... if anyone can help me out, that would be great. I used to work with
it back in flash mx, but it looks like its changed a lot.
First, does anyone know of anyplace I can get some good solid info on
DataProvider? the documentation in mx04 doesnt really do it for me.
I am creating a custom component, and would like it to be data-aware. Looks
like I need to create a dataProvider property in my components class,
right? Now, how do I go about binding the dataProvider property to a
separate Model class (I want to bind it to a property of ModelLocator in
ARP, if anyone is familiar) -- am I actaully talking about two different
things here?. I would also like to be able to set the dataProvider from an
xml object too (in other instances of the component).
___
Flashcoders mailing list
Flashcoders@chattyfig.figleaf.com
http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
___
Flashcoders mailing list
Flashcoders@chattyfig.figleaf.com
http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
___
Flashcoders mailing list
Flashcoders@chattyfig.figleaf.com
http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] dataProvider questions
thanks for all that info.
so, I can't bind to a recordset? that kinda sucks. I guess i'd need to
convert the recordset or xml into an array of objects, then set that as the
dp for the component, right?
Side question..whats up with the Binding classes in the flash help? would
they be of any use here? I looked for them in the mx.data.binding package
but didnt see the actualy class files in there.
On 1/2/06, JesterXL [EMAIL PROTECTED] wrote:
Sorry G, missed your 2nd question.
Unfortunately, an Array is the ONLY thing you can bind to using a
ModelLcoator approach (al la Cairngorm/ARP). So, this is technically the
de-facto way to do binding in Flash.
- Original Message -
From: JesterXL [EMAIL PROTECTED]
To: Flashcoders mailing list flashcoders@chattyfig.figleaf.com
Sent: Monday, January 02, 2006 5:08 PM
Subject: Re: [Flashcoders] dataProvider questions
A dataProvider is a getter/setter property. It is typically an Array, but
can be an Object. Array's have their prototype changed when you use the
v2
component framework. They have methods added to them, and these methods
make up the DataProvider API. This API is used to add data to the array,
and broadcast changes so components who use the dataProvider know what to
do
when changes occur.
DataProviders are created to allow many different Views to show and
operate
on data in the dataProvider.
Example:
a = [one, two, three];
my_list.dataProvider = a;
Your List on the stage called my_list will now show the 3 items in the
list.
If you threw that at a DataGrid, and the DataGrid was editable, you could
actually edit the items in the array. Additionally, those changes would
be
broadcast to any other View that used a as the dataProvider. You cannot
do
this with normal arrays, since doing this:
a.push(four);
Does nothing other than add data. This, however:
a.addItem(four);
Broacasts an event using EventDispatcher so all UIComponents who implement
the DataProvider API know what to do.
If you want to create compoenents that utilize the DataProvider, you have
2
chocies:
- implement a getter/setter property of dataProvider, and register for a
modelChanged event. When that occurs, redraw your component. Optionally,
you can support DataProvider API methods via proxy. Example:
public function addItemAt(index:Number, o:Object):Void
{
dataProvider.addItemAt(index, o);
}
The API is discussed heavily in the updated MX 2004 (7.2) documentation.
- The 2nd, and best way, is to utilize DataSelector. DataSelector is a
mixin, but I highly suggest you instead create an abstract base class
(meaning only created for the sake of extending it), use the DataSelector
mixin on the base class, and then extend the base class. The reason for
this is 2 fold: first, you have a LOT less code in your extended class
since
the DataSelector mixin adds A LOT; second, you can listen for modelChanged
without using hacks.
DataSelector will do a bunch of things. Mainly:
- give your component dataProvider powers
- your component automatically implements the DataProvider API
- you get properties like selectedItem, selectedIndex, etc.
For more info, check out:
http://www.jessewarden.com/archives/2005/06/dataselector_da.html
http://www.jessewarden.com/archives/2005/10/using_dataselec.html
http://www.jessewarden.com/archives/2004/07/how_to_get_data.html
- Original Message -
From: Rich Rodecker [EMAIL PROTECTED]
To: Flashcoders mailing list flashcoders@chattyfig.figleaf.com
Sent: Monday, January 02, 2006 4:55 PM
Subject: [Flashcoders] dataProvider questions
I'm having a little trouble with dataProviders. I'm trying to search
around
for info but I'm getting a little confused. I'm going to try and ask some
q's... if anyone can help me out, that would be great. I used to work
with
it back in flash mx, but it looks like its changed a lot.
First, does anyone know of anyplace I can get some good solid info on
DataProvider? the documentation in mx04 doesnt really do it for me.
I am creating a custom component, and would like it to be
data-aware. Looks
like I need to create a dataProvider property in my components class,
right? Now, how do I go about binding the dataProvider property to a
separate Model class (I want to bind it to a property of ModelLocator in
ARP, if anyone is familiar) -- am I actaully talking about two different
things here?. I would also like to be able to set the dataProvider from an
xml object too (in other instances of the component).
___
Flashcoders mailing list
Flashcoders@chattyfig.figleaf.com
http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
___
Flashcoders mailing list
Flashcoders@chattyfig.figleaf.com
http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
___
Flashcoders mailing
Re: [Flashcoders] dataProvider questions
Well, some things can, sure. A RecordSet follows a subset of the
DataProvider API. If you look in mx.remoting.RecordSet, you can see he
dispatchers modelChanged, and that's really all you need for dataProviders
to work with the v2 components.
All of the binding stuff comes with the remoting classes:
MX 2004
http://download.macromedia.com/pub/flashremoting/mx2004/components/actionscript_2.0/flashremoting_comp_sourcecode.zip
Flash 8
http://www.macromedia.com/software/flashremoting/downloads/components/
I never used them, nor saw many people talk about them, but hey... it's says
Binding so maybe it works, right? Good luck.
- Original Message -
From: Rich Rodecker [EMAIL PROTECTED]
To: Flashcoders mailing list flashcoders@chattyfig.figleaf.com
Sent: Monday, January 02, 2006 7:24 PM
Subject: Re: [Flashcoders] dataProvider questions
thanks for all that info.
so, I can't bind to a recordset? that kinda sucks. I guess i'd need to
convert the recordset or xml into an array of objects, then set that as the
dp for the component, right?
Side question..whats up with the Binding classes in the flash help? would
they be of any use here? I looked for them in the mx.data.binding package
but didnt see the actualy class files in there.
On 1/2/06, JesterXL [EMAIL PROTECTED] wrote:
Sorry G, missed your 2nd question.
Unfortunately, an Array is the ONLY thing you can bind to using a
ModelLcoator approach (al la Cairngorm/ARP). So, this is technically the
de-facto way to do binding in Flash.
- Original Message -
From: JesterXL [EMAIL PROTECTED]
To: Flashcoders mailing list flashcoders@chattyfig.figleaf.com
Sent: Monday, January 02, 2006 5:08 PM
Subject: Re: [Flashcoders] dataProvider questions
A dataProvider is a getter/setter property. It is typically an Array, but
can be an Object. Array's have their prototype changed when you use the
v2
component framework. They have methods added to them, and these methods
make up the DataProvider API. This API is used to add data to the array,
and broadcast changes so components who use the dataProvider know what to
do
when changes occur.
DataProviders are created to allow many different Views to show and
operate
on data in the dataProvider.
Example:
a = [one, two, three];
my_list.dataProvider = a;
Your List on the stage called my_list will now show the 3 items in the
list.
If you threw that at a DataGrid, and the DataGrid was editable, you could
actually edit the items in the array. Additionally, those changes would
be
broadcast to any other View that used a as the dataProvider. You cannot
do
this with normal arrays, since doing this:
a.push(four);
Does nothing other than add data. This, however:
a.addItem(four);
Broacasts an event using EventDispatcher so all UIComponents who implement
the DataProvider API know what to do.
If you want to create compoenents that utilize the DataProvider, you have
2
chocies:
- implement a getter/setter property of dataProvider, and register for a
modelChanged event. When that occurs, redraw your component. Optionally,
you can support DataProvider API methods via proxy. Example:
public function addItemAt(index:Number, o:Object):Void
{
dataProvider.addItemAt(index, o);
}
The API is discussed heavily in the updated MX 2004 (7.2) documentation.
- The 2nd, and best way, is to utilize DataSelector. DataSelector is a
mixin, but I highly suggest you instead create an abstract base class
(meaning only created for the sake of extending it), use the DataSelector
mixin on the base class, and then extend the base class. The reason for
this is 2 fold: first, you have a LOT less code in your extended class
since
the DataSelector mixin adds A LOT; second, you can listen for modelChanged
without using hacks.
DataSelector will do a bunch of things. Mainly:
- give your component dataProvider powers
- your component automatically implements the DataProvider API
- you get properties like selectedItem, selectedIndex, etc.
For more info, check out:
http://www.jessewarden.com/archives/2005/06/dataselector_da.html
http://www.jessewarden.com/archives/2005/10/using_dataselec.html
http://www.jessewarden.com/archives/2004/07/how_to_get_data.html
- Original Message -
From: Rich Rodecker [EMAIL PROTECTED]
To: Flashcoders mailing list flashcoders@chattyfig.figleaf.com
Sent: Monday, January 02, 2006 4:55 PM
Subject: [Flashcoders] dataProvider questions
I'm having a little trouble with dataProviders. I'm trying to search
around
for info but I'm getting a little confused. I'm going to try and ask some
q's... if anyone can help me out, that would be great. I used to work
with
it back in flash mx, but it looks like its changed a lot.
First, does anyone know of anyplace I can get some good solid info on
DataProvider? the documentation in mx04 doesnt really do it for me.
I am creating a custom component, and would like
