[flexcoders] Re: Refreshing Datagrid from pop up window
ive checked the contents returned and they are exactly the same as the
data that populates the grid when the application loads however the only
difference between the two is that the first call to update the grid on
application load has this line
dataProvider = new ArrayCollection ( ArrayUtil.toArray(evt.result) ); //
same as: evt.result.toString();
please look at the code below the first function populates the
datagrid on the first run
while the second function returns the results of the added item.
private function resultHandler(evt:ResultEvent):void
{
dataProvider = new ArrayCollection (
ArrayUtil.toArray(evt.result) ); // same as:evt.result.toString();
}
public function sendResultHandler(evt:ResultEvent):void
{
dataProvider.addItem(ArrayUtil.toArray(evt.result));
dataProvider.refresh();
}
the thing is if i change the second function to:
public function sendResultHandler(evt:ResultEvent):void
{
dataProvider = new ArrayCollection (
ArrayUtil.toArray(evt.result) );
dataProvider.addItem(ArrayUtil.toArray(evt.result));
dataProvider.refresh();
}
it actually populates the datagrid with the last added item however in
the process(as i said earlier) it also wipes everything off the array
collection becuase of the first line in that function.
what i dont understand is the blank row that appears...sorry if my
explenation is a bit confusing im still new to this as wel
Re: [flexcoders] Re: Refreshing Datagrid from pop up window
That's certainly interesting. I would try and debug the result of:
ArrayUtil.toArray(evt.result));
To make sure the data is the correct type, and columns named correctly. Just a
stab in the dark. I know the technique does work as I use it in my app - but
you might just need to check your return values and make sure they are what you
expect.
Cheers,
Adam
- Original Message -
From: munene_uk
To: flexcoders@yahoogroups.com
Sent: Sunday, February 11, 2007 4:44 AM
Subject: [flexcoders] Re: Refreshing Datagrid from pop up window
well im back with another problem...
i followed your example
private function sendResultHandler(evt:ResultEvent):void
{
dataProvider.addItem(ArrayUtil.toArray(evt.result));
dataProvider.refresh();
}
however all it does is add a blank result to the datagrid but once i refresh
using the browser the newly updated row appears
interstingly i tried this:
private function sendResultHandler(evt:ResultEvent):void
{
dataProvider = new ArrayCollection ( ArrayUtil.toArray(evt.result) );
dataProvider.addItem(ArrayUtil.toArray(evt.result));
dataProvider.refresh();
}
obviously this completely wipes the data currently displayed on the datagrid
but this acutally displays the newly updated item.
this is how i've declared my data provider
[Bindable]
public var dataProvider:ArrayCollection = new ArrayCollection();
any ideas? anyone?
[flexcoders] Re: Refreshing Datagrid from pop up window
well im back with another problem...
i followed your example
private function sendResultHandler(evt:ResultEvent):void
{
dataProvider.addItem(ArrayUtil.toArray(evt.result));
dataProvider.refresh();
}
however all it does is add a blank result to the datagrid but once i
refresh using the browser the newly updated row appears
interstingly i tried this:
private function sendResultHandler(evt:ResultEvent):void
{
dataProvider = new ArrayCollection ( ArrayUtil.toArray(evt.result) );
dataProvider.addItem(ArrayUtil.toArray(evt.result));
dataProvider.refresh();
}
obviously this completely wipes the data currently displayed on the
datagrid but this acutally displays the newly updated item.
this is how i've declared my data provider
[Bindable]
public var dataProvider:ArrayCollection = new ArrayCollection();
any ideas? anyone?
Re: [flexcoders] Re: Refreshing Datagrid from pop up window
I'm a beginner myself as well, so I don't really know - maybe someone else can elaborate. I liked it simply because it is quite fast and easy to use, and I guess it must have been one of the first samples I looked at. :) Adam - Original Message - From: munene_uk To: flexcoders@yahoogroups.com Sent: Tuesday, February 06, 2007 4:49 AM Subject: [flexcoders] Re: Refreshing Datagrid from pop up window what can i say..thank you so much that has really helped understand what im doing...could i ask what is the advantage of using remoting connection over remote object...the reason im asking is because i was using remoting connection before.
[flexcoders] Re: Refreshing Datagrid from pop up window
what can i say..thank you so much that has really helped understand what im doing...could i ask what is the advantage of using remoting connection over remote object...the reason im asking is because i was using remoting connection before.
Re: [flexcoders] Re: Refreshing Datagrid from pop up window
OK, so this is similar to what I have, however I think you might be using the
RemoteObject component, while I'm using the RemotingConnection class. This is
how it would work using RemotingConnection.
public var dataProvider:ArrayCollection = new ArrayCollection();
public function onAddStudent(result:Array):void
{
if (!result) return;
dataProvider.addItem(result);
dataProvider.refresh();
}
You can see it's quite simple. The dataProvider ArrayCollection can be (should
be) bound to a datagrid.
If you are using something similar to this
(http://www.sephiroth.it/tutorials/flashPHP/flex_remoteobject/page004.php) then
your code might look like this:
public var dataProvider:ArrayCollection = new ArrayCollection();
public function onAddStudent(evt:ResultEvent):void
{
if (!evt.result) return;
dataProvider.addItem(ArrayUtil.toArray(evt.result));
dataProvider.refresh();
}
With my PHP script, what I actually do is:
- validate/format data
- insert into database
- select inserted rows from database
- format data
- return data to flex
Hope this helps
Adam
- Original Message -
From: munene_uk
To: flexcoders@yahoogroups.com
Sent: Monday, February 05, 2007 11:18 PM
Subject: [flexcoders] Re: Refreshing Datagrid from pop up window
--- In flexcoders@yahoogroups.com, "Adam Royle" <[EMAIL PROTECTED]> wrote:
>
> Not sure whether you want actionscript, or just a "how to", but I
have done it in my app like this.
>
> On update I send the data much like you have, and get the same data
returned from amfphp. Then I just do an .addItem() call with the new
data on the ArrayCollection that is binded to my datagrid, and then
a .refresh() on my dataprovider.
>
> Doing it this way has its benefits:
>
> - only partial updates, so don't have to get all data back.
> - inserting return data (instead of directly from form) means you
can have some validation and formatting on the server
>
> But it also has it's downfalls:
>
> - will not get new (or remove deleted) data that was updated
outside of the current flex app
>
> Hope this helps.
>
> Cheers,
> Adam
>
> - Original Message -
> From: munene_uk
> To: flexcoders@yahoogroups.com
> Sent: Monday, February 05, 2007 3:14 AM
> Subject: [flexcoders] Refreshing Datagrid from pop up window
>
>
> I have a datagrid that retrieves user detials from a database
using AMFPHP 1.9. Within the same application, i also have an option
for adding new users to the database via a custom pop window form.
How can i get the datagrid to automatically update once i have sent
the new users details to the database. I'm not using FDS because im
not too sure whether its needed for such a task.
>
>
> this is the code that sends the user details once you click "save"
>
> private function addStudent(details:Array):void
> {
>
> myservice.getOperation('addStudent').send(details);
> PopUpManager.removePopUp(this);
> }
>
> I would i deally like to also make a call to the main
application in order to refresh the datagrid.
>
>
> So in short... how can i update the datagrid in my main
application automatically from the pop up window?
>
Thanks Adam this is pretty much what i want to do...is there any
chance you could show me an example from your code where the methods
addItem() and refresh() are called. I assume your using amfphp 1.9.
is the data being retrieved from php or are you just relaying the
data that wa input in flex. this is important for me to know because
my php includes some validation on server side.
[flexcoders] Re: Refreshing Datagrid from pop up window
--- In flexcoders@yahoogroups.com, "Adam Royle" <[EMAIL PROTECTED]> wrote:
>
> Not sure whether you want actionscript, or just a "how to", but I
have done it in my app like this.
>
> On update I send the data much like you have, and get the same data
returned from amfphp. Then I just do an .addItem() call with the new
data on the ArrayCollection that is binded to my datagrid, and then
a .refresh() on my dataprovider.
>
> Doing it this way has its benefits:
>
> - only partial updates, so don't have to get all data back.
> - inserting return data (instead of directly from form) means you
can have some validation and formatting on the server
>
> But it also has it's downfalls:
>
> - will not get new (or remove deleted) data that was updated
outside of the current flex app
>
> Hope this helps.
>
> Cheers,
> Adam
>
> - Original Message -
> From: munene_uk
> To: flexcoders@yahoogroups.com
> Sent: Monday, February 05, 2007 3:14 AM
> Subject: [flexcoders] Refreshing Datagrid from pop up window
>
>
> I have a datagrid that retrieves user detials from a database
using AMFPHP 1.9. Within the same application, i also have an option
for adding new users to the database via a custom pop window form.
How can i get the datagrid to automatically update once i have sent
the new users details to the database. I'm not using FDS because im
not too sure whether its needed for such a task.
>
>
> this is the code that sends the user details once you click "save"
>
> private function addStudent(details:Array):void
> {
>
> myservice.getOperation('addStudent').send(details);
> PopUpManager.removePopUp(this);
> }
>
> I would i deally like to also make a call to the main
application in order to refresh the datagrid.
>
>
> So in short... how can i update the datagrid in my main
application automatically from the pop up window?
>
Thanks Adam this is pretty much what i want to do...is there any
chance you could show me an example from your code where the methods
addItem() and refresh() are called. I assume your using amfphp 1.9.
is the data being retrieved from php or are you just relaying the
data that wa input in flex. this is important for me to know because
my php includes some validation on server side.
