flash data integration: hi everybody...
does anyone know how to do this ????

i am binding an xml connector with a textarea component and a combobox
component...
when an item in combobox changes the value changes in the textarea....

the general syntax to make a databinding using actionscript is this
---------------------------------------------
new mx.data.binding.Binding({component:, property:"", event:[""]},
{component:, property:""}, {cls:mx.data.formatters.Custom,
settings:{classname:"", classname_class:}});
--------------------------------------------

now the sample schema for the the xml connector is :

xml connector name: my_xml
results ; XML
----newdata : Object
--------data : Array
------------[n] : Object
------------a : String
------------b : String

so the syntax i need are :
1.binding between the my_xml array and the combo box (my_combo) dataprovider
2.binding between the my_xml--> a:String and the textarea (my_txt) text
3.binding between the index of the xml connector (my_xml) and the
selectedindex of the combobox (my_combo)


anyone can solve this problem ??????????????????

what, no one is replying for this ???

Here is something that might help with #3. (It's probably more than you need,
but it's what I have handy.)

On a stage with a datagrid (dg), a dataset (ds) and 6 textinputs (tb0 - tb5)...

The data provider for dg is bound to the data provider for ds.

Each instance of the text input (will be) bound to a different item in the
dataset.
If you change a (bound) cell in the datagrid, the corresponding text input
changes, and vice versa.


The following actionscript (dynamically) binds the textinputs to ds.

//---------------

import mx.data.binding.Binding;
import mx.data.binding.EndPoint;
import mx.data.components.DataSet;
//
var boundElementName = "name"; // name of the ds element to bind to the text
boxes
var loop = 6; // number of items to put in the data grid (the text boxes are
static) - what? I was lazy
for (var ndx = 0; ndx < loop; ndx++)
{
//
// set the end points for the binding that moves data from the dataset to the
text boxes
var src = new EndPoint ();
var dest = new EndPoint ();
src.component = ds;
src.property = "items";
src.event = "modelChanged";
src.location = {path:["[n]", boundElementName], indices:[{constant:ndx}]};
dest.component = _root["tb" + ndx];
dest.property = "text";
new Binding (src, dest);
//
//set the end points for the binding that moves the data from the text boxes
to the dataset
// (note the different event)
src = new EndPoint ();
dest = new EndPoint ();
src.component = _root["tb" + ndx];
src.property = "text";
src.event = "change";
dest.location = {path:["[n]", boundElementName], indices:[{constant:ndx}]};
dest.component = ds;
dest.property = "items";
new Binding (src, dest);
}
//
// fill the data set with junk
for (var ndx = 0; ndx < loop; ndx++)
{
var to = new Object ();
to.name = "name" + ndx;
to.stuff = "timer: " + getTimer ();
to.number = ndx;
ds.addItem (to);
}
//
// this code is just to make the datagrid sync with the changes to the text
boxes.
// - the data set is already changing, but the changes will not show in the
datagrid without a little "help"
//
tbChangeObject = new Object ();
tbChangeObject.focusOut = function (eventObject)
{
ds.refreshDestinations ();
};
for (var ndx = 0; ndx < loop; ndx++)
{
_root["tb" + ndx].addEventListener ("focusOut", tbChangeObject);
}

//---------------

Hope this helps.

Hi GeoffEly,
that's great....amazing.......it works....

but a small doubt....
whether is it possible to give dynamic value in the constant property

src.location = {path:["[n]", boundElementName], indices:[{constant:ndx}]};

here you had specified ndx, instead of ndx, I want to specify the
selectedIndex property of my combo box.....

is this possible..????

Please help

the tutorial you are looking for is the Bike tutorial, at
http://www.macromedia.com/devnet/flash/articles/xmlconnector.html

it shows steps to bind the description (text) field component and loader
component to the selected results of a combo box.

I have a related issue that might be in the area of what you are doing....i
have successfully created a similar app as the bike one, which walks through
images upon selection of a combo box value.

this is all fine, but what i really want to do is pass a variable to the movie
, such as "clipNumber" with a value, and have the selected description and
image change based on that information.

So right now, with the combo box providing the value, I have the "Index for
image" in the Component Inspector binding for the set to
selectbox_cb:selectedindex

How might one use a variable here? I have tried several formats (), {}, or on
its own, but to no avail. I want it to work off something like "Index for
image" being clipNumber

Scott B

Hi Scott,
the bike tutorial is done using binding panel in the component inspector...
okay, i had asked how to bind the data in actionscript without using binding
panel....

okay, for your problem, check the dataholder component, you can get what you
want.....

bye