Re: [flexcoders] FilterFunction creating duplicate items in the list
Hi Srinivas,
I tried using creating a different data provider from the roomlist and
applying filter functions on that.
And then assigning the filtered dataprovider to the roomlist. But still I
am seeing the issue.
Can you provide some code snippets for what you mean?
Thanks,
Rohit
On Mon, Jun 1, 2009 at 8:12 AM, Srinivas Sandur Madhu Murthy
s.m.srini...@gmail.com wrote:
Longtime back I did face similar issue. I probably believe, you have binded
the array collection with data grid or list directly applying filter on
this binded array collection. If it is true, then trying not binding them
using {}, use flags and commitProperties() method and apply filter
function if not applied already on collection then assign dataProvider for
grid/list. Probably this might remove or resolve duplication problem.
Srinivas
On May 31, 2009, at 12:16 PM, Rohit Sharma wrote:
Hi All,
I am stuck up with this problem. Please provide some insight into
it.
I have a list component which shows all the game rooms currently
existing. As soon as some property of the room changes,
I update the corresponding item in the dataprovider using setItemAt. (I
typecast dataprovider as Arraycollection).
Recently I added some filters to the room list using
filterfunction. As soon as I start applying filters, I see few items getting
duplicated in the list. Some items exist with old values as well as new
values.
I also tried making the filtering and updating actions mutually
exclusive using flags hoping that two different actions taking
place on the same data might cause duplication of items. But the
duplication is still taking place.
In fact I tried using itemUpdate() also in place of setItemAt but the
problem still persists.
I have also tried modifying only the source array during updates because
the filtering takes place only on the ArrayCollection and
not on the source array but this also failed.
Any inputs will be appreciated.
Thanks,
Rohit
[flexcoders] FilterFunction creating duplicate items in the list
Hi All, I am stuck up with this problem. Please provide some insight into it. I have a list component which shows all the game rooms currently existing. As soon as some property of the room changes, I update the corresponding item in the dataprovider using setItemAt. (I typecast dataprovider as Arraycollection). Recently I added some filters to the room list using filterfunction. As soon as I start applying filters, I see few items getting duplicated in the list. Some items exist with old values as well as new values. I also tried making the filtering and updating actions mutually exclusive using flags hoping that two different actions taking place on the same data might cause duplication of items. But the duplication is still taking place. In fact I tried using itemUpdate() also in place of setItemAt but the problem still persists. I have also tried modifying only the source array during updates because the filtering takes place only on the ArrayCollection and not on the source array but this also failed. Any inputs will be appreciated. Thanks, Rohit
Re: [flexcoders] FilterFunction creating duplicate items in the list
Longtime back I did face similar issue. I probably believe, you have
binded the array collection with data grid or list directly applying
filter on this binded array collection. If it is true, then trying not
binding them using {}, use flags and commitProperties() method and
apply filter function if not applied already on collection then
assign dataProvider for grid/list. Probably this might remove or
resolve duplication problem.
Srinivas
On May 31, 2009, at 12:16 PM, Rohit Sharma wrote:
Hi All,
I am stuck up with this problem. Please provide some insight
into it.
I have a list component which shows all the game rooms currently
existing. As soon as some property of the room changes,
I update the corresponding item in the dataprovider using setItemAt.
(I typecast dataprovider as Arraycollection).
Recently I added some filters to the room list using
filterfunction. As soon as I start applying filters, I see few items
getting
duplicated in the list. Some items exist with old values as well as
new values.
I also tried making the filtering and updating actions
mutually exclusive using flags hoping that two different actions
taking
place on the same data might cause duplication of items. But the
duplication is still taking place.
In fact I tried using itemUpdate() also in place of setItemAt
but the problem still persists.
I have also tried modifying only the source array during updates
because the filtering takes place only on the ArrayCollection and
not on the source array but this also failed.
Any inputs will be appreciated.
Thanks,
Rohit
[flexcoders] FilterFunction
You need to check into a number of things...
ArrayCollection:
http://livedocs.adobe.com/flex/3/langref/mx/collections/ArrayCollection.\
html
You need to know how to filter your data. Here you will find info
regarding FilterFunction.
CheckBox:
http://livedocs.adobe.com/flex/3/langref/mx/controls/CheckBox.html
This will show you some of the events that the checkbox generates
including the change event.
String: http://livedocs.adobe.com/flex/3/langref/String.html
This will show you a few ways of doing string searches including
indexOf().
As a quick and dirty example:
?xml version=1.0 encoding=utf-8?
mx:Application xmlns:mx=http://www.adobe.com/2006/mxml;
layout=vertical
initialize=onInit()
mx:Script
![CDATA[
import mx.collections.ArrayCollection;
[Bindable] private var IPAddresses:ArrayCollection;
private function onInit():void
{
IPAddresses = new ArrayCollection([
{IP:192.168.1.1},
{IP:192.168.1.2},
{IP:192.168.1.3},
{IP:192.168.1.4},
{IP:192.168.1.5},
{IP:192.168.2.1},
{IP:192.168.2.2},
{IP:192.168.2.3},
{IP:192.168.2.4},
{IP:192.168.2.5}
]);
}
private function checkBoxChanged():void
{
if(IPCheckBox.selected)
{
IPAddresses.filterFunction = IPFilter;
}
else
{
IPAddresses.filterFunction = null;
}
IPAddresses.refresh();
}
private function IPFilter(item:Object):Boolean
{
var isMatch:Boolean = false;
if((item.IP as String).indexOf(IPTextInput.text) -1)
{
isMatch = true;
}
return isMatch;
}
]]
/mx:Script
mx:HBox
mx:CheckBox id=IPCheckBox label=IP address
change=checkBoxChanged()/
mx:TextInput id=IPTextInput /
/mx:HBox
mx:DataGrid id=IPDataGrid dataProvider={IPAddresses}
rowCount={IPAddresses.length}
mx:columns
mx:DataGridColumn headerText=IP dataField=IP/
/mx:columns
/mx:DataGrid
/mx:Application
If there is anything about this you don't understand, please don't
hesitate to ask.
HTH.
Steve
--- In flexcoders@yahoogroups.com, diana_usim diana_u...@... wrote:
hye
i've got a problem to build my checkbox.i have a checkbox with label
IP address and a text input beside it.
i want to be able to input any IP address and when i click the
checkbox button it will filter the datagrid according to IP address
input earlier.it like a combination of 'search' and checkbox.but i don't
know how to do this.
can you show me how to work on this one??i'm ready to learn form the
expert!!
[flexcoders] filterFunction and selecting a Date Range
Hi everyone, just thought I would run this by you.
With the help of others on this list, we were able to find a way to sort
dates returned from a database in a hacked sort of way. What I need to now
is to be able to select a range, so this date and this date. Perhaps I¹m
over simplifying this, but I can¹t get modifications of the below to
function:
...
private function processFilter(item:Object):Boolean {return
item.Date_Collected dfconv.format(getdate.text).toString();
item.Date_Collected dfconv.format(getdateEnd.text).toString();
}
It¹s not throwing an error and only half works because it is stopping at the
first part. Any date ... Works. I can¹t seem to define the however.
Any hints greatly welcomed. Thanks,
--
Blair
From: Tim Hoff [EMAIL PROTECTED]
Reply-To: flexcoders@yahoogroups.com
Date: Sat, 25 Oct 2008 01:28:37 -
To: flexcoders@yahoogroups.com
Subject: [flexcoders] Re: Help: filterFunction and Dates
See how messy this gets; when dates are represented as strings. Look
into AMFPHP serialization/deserialization. If you get back a date,
instead of a sting, you don't have to jump through these hoops. I only
say this because the amount of time it takes to setup the integration is
sometimes less than the time it takes to hack the application into
submission. :)
Glad that you have a working solution.
-TH
Re: [flexcoders] filterFunction and selecting a Date Range
Yup, that was a totally newbie question...
private function processFilter(item:Object):Boolean {return
item.Date_Collected dfconv.format(getdate.text).toString()
item.Date_Collected dfconv.format(getdateEnd.text).toString();
}
For future newbie¹s :)
--
Blair
From: Blair Cox [EMAIL PROTECTED]
Reply-To: flexcoders@yahoogroups.com
Date: Mon, 27 Oct 2008 10:58:54 -0300
To: flexcoders@yahoogroups.com
Conversation: filterFunction and selecting a Date Range
Subject: [flexcoders] filterFunction and selecting a Date Range
Hi everyone, just thought I would run this by you.
With the help of others on this list, we were able to find a way to sort
dates returned from a database in a hacked sort of way. What I need to now
is to be able to select a range, so this date and this date. Perhaps I¹m
over simplifying this, but I can¹t get modifications of the below to
function:
...
private function processFilter(item:Object):Boolean {return
item.Date_Collected dfconv.format(getdate.text).toString();
item.Date_Collected dfconv.format(getdateEnd.text).toString();
}
It¹s not throwing an error and only half works because it is stopping at the
first part. Any date ... Works. I can¹t seem to define the however.
Any hints greatly welcomed. Thanks,
--
Blair
[flexcoders] filterFunction Tilelist effects
Hi, I have created a tilelist component, displaying a grid of products. This is then filtered by the user, using a combobox or typing a search string into a text input box. All works fine up 2 now :) Can anybody give me any tips on how the fade out and re-ordering of the tilelist is achieved when items are removed from the list by the filter. This effect is used in the FlexStore app on the Adobe site. I have currently tried using an itemsChangeEffect on the tilelist but it does nothing. Any help would be greatly appreciated. Thanks Mart
Re: [flexcoders] filterFunction Tilelist effect
Didn't test this, but try setting the show and hide effects for the items. -- Haykel Ben Jemia Allmas Web RIA Development http://www.allmas-tn.com On Wed, Sep 17, 2008 at 9:27 PM, mjharvey1979 [EMAIL PROTECTED]wrote: Hi, I have created a tilelist component, displaying a grid of products. This is then filtered by the user, using a combobox or typing a search string into a text input box. All works fine up 2 now :) Can anybody give me any tips on how the fade out and re-ordering of the tilelist is achieved when items are removed from the list by the filter. This effect is used in the FlexStore app on the Adobe site. I have currently tried using an itemsChangeEffect on the tilelist but it does nothing. Any help would be greatly appreciated. Thanks Mart
Re: [flexcoders] FilterFunction is throwing an error #1069
Hi,
I came across this error not long ago, and when I search about it I
found something like this is logged in the Flex issue tracker (Jira)
The work round provided is something like:
Before you call the filter function on the dataprovider for the Combo
box, set the selected index for the combo box to -1 (neagtive 1)
HTH
David
On Tue, Jul 29, 2008 at 6:23 PM, jitendra jain
[EMAIL PROTECTED] wrote:
Hi friends,
My code is as follows
public function setVisitor():void{
if(frm_visitType.selectedItem == E){
visitorList= ObjectUtil.copy(model.visitorList)
as ICollectionView;
visitorList.filterFunction =
filterExisitingVisitorCode;
visitorList.refresh();
}else{
visitorList=
ObjectUtil.copy(model.visitorList) as ICollectionView;
visitorList.filterFunction =
filterNewVisitorCode;
visitorList.refresh();
}
}
}
}
public function filterExisitingVisitorCode(item :
Object):Boolean{
return (item.visitorType==Exisitng)
}
public function filterNewVisitorCode(item : Object):Boolean{
return (item.visitorType==New)
}
When there is no New Visitor it throws this error.
ReferenceError: Error #1069: Property data not found on User and there is no
default value.
at mx.controls::ComboBase/get value()
at mx.controls::ComboBase/setSelectedItem()
at mx.controls::ComboBase/set selectedItem()
at mx.controls::ComboBox/set selectedItem()
at mx.controls::ComboBase/updateDisplayList()
at mx.controls::ComboBox/updateDisplayList()
Thanks,
with Regards,
Jitendra Jain
Software Engineer
91-9979960798
[flexcoders] FilterFunction is throwing an error #1069
Hi friends,
My code is as follows
public function setVisitor():void{
if(frm_visitType.selectedItem == E){
visitorList= ObjectUtil.copy(model.visitorList) as
ICollectionView;
visitorList.filterFunction =
filterExisitingVisitorCode;
visitorList.refresh();
}else{
visitorList= ObjectUtil.copy(model.visitorList)
as ICollectionView;
visitorList.filterFunction = filterNewVisitorCode;
visitorList.refresh();
}
}
}
}
public function filterExisitingVisitorCode(item :
Object):Boolean{
return (item.visitorType==Exisitng)
}
public function filterNewVisitorCode(item : Object):Boolean{
return (item.visitorType==New)
}
When there is no New Visitor it throws this error.
ReferenceError: Error #1069: Property data not found on User and there is no
default value.
at mx.controls::ComboBase/get value()
at mx.controls::ComboBase/setSelectedItem()
at mx.controls::ComboBase/set selectedItem()
at mx.controls::ComboBox/set selectedItem()
at mx.controls::ComboBase/updateDisplayList()
at mx.controls::ComboBox/updateDisplayList()
Thanks,
with Regards,
Jitendra Jain
Software Engineer
91-9979960798
[flexcoders] FilterFunction is throwing an error #1069
Hi friends,
My code is as follows
public function setVisitor():void{
if(frm_visitType.selectedItem == E){
visitorList= ObjectUtil.copy(model.visitorList) as
ICollectionView;
visitorList.filterFunction =
filterExisitingVisitorCode;
visitorList.refresh();
}else{
visitorList= ObjectUtil.copy(model.visitorList)
as ICollectionView;
visitorList.filterFunction = filterNewVisitorCode;
visitorList.refresh();
}
}
}
}
public function filterExisitingVisitorCode(item :
Object):Boolean{
return (item.visitorType==Exisitng)
}
public function filterNewVisitorCode(item : Object):Boolean{
return (item.visitorType==New)
}
When there is no New Visitor it throws this error.
ReferenceError: Error #1069: Property data not found on User and there is no
default value.
at mx.controls::ComboBase/get value()
at mx.controls::ComboBase/setSelectedItem()
at mx.controls::ComboBase/set selectedItem()
at mx.controls::ComboBox/set selectedItem()
at mx.controls::ComboBase/updateDisplayList()
at mx.controls::ComboBox/updateDisplayList()
Thanks,
with Regards,
Jitendra Jain
Software Engineer
91-9979960798
[flexcoders] filterFunction problems being had
Okay, I'm working on a filter function to sort through information in an
ArrayCollection which is filled by the results of a select statement to
a database. The actual functionaility is modified ever so slightly from
the source I found here:
http://www.franto.com/blog2/wp-content/uploads/examples/filterfunction/s\
rcview/
This is what I have:
private function filterProducts():void
{
model.prodMaintData.filterFunction = sortProducts;
model.prodMaintData.refresh();
}
private function sortProducts(item:Object):Boolean
{
var value:String;
var col:String = this.cmbColumns.selectedItem.data as String;
searchBy = this.txtDescription.text;
searchBy = searchBy.toLowerCase();
if (searchBy != )
{
if (col != any)
{
value = item[col]; //Why is value NOT getting set
equal to this?
value = value.toLowerCase(); //Error happens here
because value is still null for some reason
if (value.indexOf(searchBy) = 0)
{
return true;
}
}
else
{
for (var o:String in item)
{
value = item[o];
value = value.toLowerCase();
if (value.indexOf(searchBy) = 0)
{
return true;
}
}
}
}
else
{
return true;
}
return false;
}
Now, as seen by my comments, I keep getting an error because the value
variable is null for some reason, even when lines were changed around
from what was originally from the sample. I don't know if this has
anything to do with it, but despite the fact that my comboBox is
populated by an ArrayCollection that was declared and filled manually in
the code:
columnArray = new ArrayCollection();
columnArray.addItem({data:'any', label:'Any'});
columnArray.addItem({data:'productID', label:'Product ID'});
columnArray.addItem({data:'productName', label:'Product
Name'});
columnArray.addItem({data:'print', label:'Print'});
columnArray.addItem({data:'barcode', label:'Barcode'});
columnArray.addItem({data:'vendor', label:'Vendor'});
columnArray.addItem({data:'status', label:'Status'});
The ArrayCollection which populates the dataGrid, the one I'm trying to
sort through, is instantiated and populated automatically again from a
database table. I don't see the reason why the value variable should be
null and causing the error. Thanks in advance.
Brian Ross Edwards
[flexcoders] filterFunction for Array problem
I've got an Array of class objects (a class Circle with a property percentage) coming in. I've got 4 Numeric steppers that are supposed to control each Circle's percentage -- trouble is each of the 4 circles has it's own type - so one stepper controls one circle type, etc. How can I best bind the stepper to the correct circle? If I use the filter function, it return an array - do I do the filter function and return the first Circle returned (there will be only one -- and in doing this will the binding still work for live data binding? Or do I just do the extra code up top that when these are loaded in I make sure they're always in the proper order and have the steppers just bind via Circles[0] -- positioning?
Re: [flexcoders] filterFunction for Array problem
Seems like 'some' is more what I want...? On Apr 21, 2008, at 3:19 PM, grimmwerks wrote: I've got an Array of class objects (a class Circle with a property percentage) coming in. I've got 4 Numeric steppers that are supposed to control each Circle's percentage -- trouble is each of the 4 circles has it's own type - so one stepper controls one circle type, etc. How can I best bind the stepper to the correct circle? If I use the filter function, it return an array - do I do the filter function and return the first Circle returned (there will be only one -- and in doing this will the binding still work for live data binding? Or do I just do the extra code up top that when these are loaded in I make sure they're always in the proper order and have the steppers just bind via Circles[0] -- positioning? -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.comYahoo ! Groups Links
[flexcoders] filterFunction - blows up when item field blank
I've been using this code below for a long time...but don't fully
understand how it works:) It does work great, as long as both title
and docNumber are not null. But it blows up if docNumber is null.
1) Can someone explain in words what indexOf does? Obviously it
compares the two and spits out a number, but I just don't fully grasp
what is going on. Why use it instead of just == ?
2) The OR || isn't clicking either. Would I add !item.docNumber.length
as another || to prevent the error when docNumber is blank? I want it
to filter on one or more columns in the dataProvider, but not blow up
if any one of them are blank. If one is blank, it should still filter
on the others.
public function processFilter(item:Object):Boolean
{
var result:Boolean=false;
// If no filter text, or a match, then true
if (!item.title.length
|| item.title.toUpperCase().indexOf(term.text.toUpperCase()) = 0
||item.docNumber.toUpperCase().indexOf(term.text.toUpperCase()) = 0
)
result=true;
return result;
}
Thanks for the added insight into this borrowed code.:)
Don
Re: [flexcoders] filterFunction - blows up when item field blank
1) Can someone explain in words what indexOf does? Obviously it
compares the two and spits out a number, but I just don't fully grasp
what is going on. Why use it instead of just == ?
- String.indexOf returns -1 if the specified sequence is not found in
the target string (the one you are calling the method on) and returns
the zero based index of the position within the target string if it is
found. You would use indexOf if you were interested in substring
(partial) matches. i.e. so your grid shows all titles with ch in them
without requiring the title to BE ch.
The problem you are having is that the filter calls methods on both
title and docNumber without first checking if they are null. So, if
either is null you are going to get exceptions.
I would probably re-write that as something like: Note... this code may
not compile, but should be close :)
public function processFilter(item:Object):Boolean
{
var result:Boolean=false;
//make sure there is a search term
if(term.text != null term.text.length 0)
{
//get the search term as upper case
var searchTerm:String = term.text.toUpperCase();
//check against the title
if(item.title != null item.title.length 0)
{
result = (item.title.toUpperCase().indexOf(searchTerm) != -1);
}
//no need to check doc number if title already matched or if there is no
docNumber
if(result == false item.docNumber != null item.docNumber.length 0)
{
result = (item.docNumber.toUpperCase().indexOf(searchTerm) != -1);
}
}
return result;
}
Though I may use RegExp and String.search() instead of indexOf... Check out this
page
http://livedocs.adobe.com/flex/3/html/help.html?content=09_Working_with_Strings_09.html
for more info on string searches.
hth
Scott
Scott Melby
Founder, Fast Lane Software LLC
http://www.fastlanesw.com
http://blog.fastlanesw.com
Don Kerr wrote:
I've been using this code below for a long time...but don't fully
understand how it works:) It does work great, as long as both title
and docNumber are not null. But it blows up if docNumber is null.
1) Can someone explain in words what indexOf does? Obviously it
compares the two and spits out a number, but I just don't fully grasp
what is going on. Why use it instead of just == ?
2) The OR || isn't clicking either. Would I add !item.docNumber.length
as another || to prevent the error when docNumber is blank? I want it
to filter on one or more columns in the dataProvider, but not blow up
if any one of them are blank. If one is blank, it should still filter
on the others.
public function processFilter(item:Object):Boolean
{
var result:Boolean=false;
// If no filter text, or a match, then true
if (!item.title.length
|| item.title.toUpperCase().indexOf(term.text.toUpperCase()) = 0
||item.docNumber.toUpperCase().indexOf(term.text.toUpperCase()) = 0
)
result=true;
return result;
}
Thanks for the added insight into this borrowed code.:)
Don
RE: [flexcoders] filterFunction on ArrayCollection
When does startFIlter get called? Can you post the entire call stack
with the error? startFilter may be called before the result from the
HTTPService. Add trace statements to startFilter and the result handler
and see which one gets called first.
From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of Ary
Sent: Sunday, August 26, 2007 3:07 PM
To: flexcoders@yahoogroups.com
Subject: RE: [flexcoders] filterFunction on ArrayCollection
Hi Alex, thx for replying, yes i thought so too...but
if it is...it won't work on local either..but it works
on localhost...
here's the code
private function startFilter(toFilter:String):void {
categoryString=toFilter;
tabSwitch(toFilter);
playlist=userRequest.lastResult.videolink.video
playlist.filterFunction=processFilter;
playlist.refresh();
dgUserRequest.selectedIndex=0;
}
private function processFilter(item:Object):Boolean
{
var result:Boolean=false;
if (!item.videocategory.length ||
item.videocategory.toUpperCase().indexOf(categoryString)
= 0){
result=true;
}
return result;
}
and here is the httpservice, trigerred on
creationComplete app. userRequest.send();
mx:HTTPService id=userRequest url=_fxrequest.php
useProxy=false method=POST
result=playlist=userRequest.lastResult.videolink.video
thanks!
ary
--- Alex Harui [EMAIL PROTECTED] mailto:aharui%40adobe.com wrote:
please post some code. Sounds like you might be
filtering before the
results come back from the server.
__
Need a vacation? Get great deals
to amazing places on Yahoo! Travel.
http://travel.yahoo.com/ http://travel.yahoo.com/
RE: [flexcoders] filterFunction on ArrayCollection
Yes, i called a php file who generate data from mysql strange ..cause it works fine on my localhost but not when i upload it to server. --- Alex Harui [EMAIL PROTECTED] wrote: Are you filtering when the result event comes back from the webservice? From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Ary Sent: Thursday, August 23, 2007 10:05 AM To: flexcoders@yahoogroups.com Subject: [flexcoders] filterFunction on ArrayCollection Hi, i have a weird problem with filter function on arraycollection, i have generated an array from a database (webservice). first, no filter attached then several button who filter based on a field data, in local machine it works fine..all the filter condition work. but when i upload it i got this error when trying to filter the data TypeError: Error #1009: Cannot access a property or method of a null object reference. i know this because the array has not been populated..but how come it works on my local machine? and can somebody told me how to detect the array is ready for filtering?or some solution... thank you ary __ Fussy? Opinionated? Impossible to please? Perfect. Join Yahoo!'s user panel and lay it on us. http://surveylink.yahoo.com/gmrs/yahoo_panel_invite.asp?a=7 http://surveylink.yahoo.com/gmrs/yahoo_panel_invite.asp?a=7 Got a little couch potato? Check out fun summer activities for kids. http://search.yahoo.com/search?fr=oni_on_mailp=summer+activities+for+kidscs=bz
RE: [flexcoders] filterFunction on ArrayCollection
please post some code. Sounds like you might be filtering before the results come back from the server. From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Ary Sent: Sunday, August 26, 2007 9:00 AM To: flexcoders@yahoogroups.com Subject: RE: [flexcoders] filterFunction on ArrayCollection Yes, i called a php file who generate data from mysql strange ..cause it works fine on my localhost but not when i upload it to server. --- Alex Harui [EMAIL PROTECTED] mailto:aharui%40adobe.com wrote: Are you filtering when the result event comes back from the webservice? From: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com [mailto:flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com ] On Behalf Of Ary Sent: Thursday, August 23, 2007 10:05 AM To: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com Subject: [flexcoders] filterFunction on ArrayCollection Hi, i have a weird problem with filter function on arraycollection, i have generated an array from a database (webservice). first, no filter attached then several button who filter based on a field data, in local machine it works fine..all the filter condition work. but when i upload it i got this error when trying to filter the data TypeError: Error #1009: Cannot access a property or method of a null object reference. i know this because the array has not been populated..but how come it works on my local machine? and can somebody told me how to detect the array is ready for filtering?or some solution... thank you ary __ Fussy? Opinionated? Impossible to please? Perfect. Join Yahoo!'s user panel and lay it on us. http://surveylink.yahoo.com/gmrs/yahoo_panel_invite.asp?a=7 http://surveylink.yahoo.com/gmrs/yahoo_panel_invite.asp?a=7 http://surveylink.yahoo.com/gmrs/yahoo_panel_invite.asp?a=7 http://surveylink.yahoo.com/gmrs/yahoo_panel_invite.asp?a=7 __ Got a little couch potato? Check out fun summer activities for kids. http://search.yahoo.com/search?fr=oni_on_mailp=summer+activities+for+ki dscs=bz http://search.yahoo.com/search?fr=oni_on_mailp=summer+activities+for+k idscs=bz
RE: [flexcoders] filterFunction on ArrayCollection
Hi Alex, thx for replying, yes i thought so too...but
if it is...it won't work on local either..but it works
on localhost...
here's the code
private function startFilter(toFilter:String):void {
categoryString=toFilter;
tabSwitch(toFilter);
playlist=userRequest.lastResult.videolink.video
playlist.filterFunction=processFilter;
playlist.refresh();
dgUserRequest.selectedIndex=0;
}
private function processFilter(item:Object):Boolean
{
var result:Boolean=false;
if (!item.videocategory.length ||
item.videocategory.toUpperCase().indexOf(categoryString)
= 0){
result=true;
}
return result;
}
and here is the httpservice, trigerred on
creationComplete app. userRequest.send();
mx:HTTPService id=userRequest url=_fxrequest.php
useProxy=false method=POST
result=playlist=userRequest.lastResult.videolink.video
thanks!
ary
--- Alex Harui [EMAIL PROTECTED] wrote:
please post some code. Sounds like you might be
filtering before the
results come back from the server.
Need a vacation? Get great deals
to amazing places on Yahoo! Travel.
http://travel.yahoo.com/
RE: [flexcoders] filterFunction on ArrayCollection
Works local but not on server often indicates a security issue. Are
you sure you are getting your data?
Also, this is probably not the best thing:
playlist=userRequest.lastResult.videolink.video
Use a result handler function to assign the event.result(don't use
lastResult, it is intended for binding espressions) to a local variable.
The result handler will also let you verify that/when your data result
is returned.
Tracy
From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of Ary
Sent: Sunday, August 26, 2007 6:07 PM
To: flexcoders@yahoogroups.com
Subject: RE: [flexcoders] filterFunction on ArrayCollection
Hi Alex, thx for replying, yes i thought so too...but
if it is...it won't work on local either..but it works
on localhost...
here's the code
private function startFilter(toFilter:String):void {
categoryString=toFilter;
tabSwitch(toFilter);
playlist=userRequest.lastResult.videolink.video
playlist.filterFunction=processFilter;
playlist.refresh();
dgUserRequest.selectedIndex=0;
}
private function processFilter(item:Object):Boolean
{
var result:Boolean=false;
if (!item.videocategory.length ||
item.videocategory.toUpperCase().indexOf(categoryString)
= 0){
result=true;
}
return result;
}
and here is the httpservice, trigerred on
creationComplete app. userRequest.send();
mx:HTTPService id=userRequest url=_fxrequest.php
useProxy=false method=POST
result=playlist=userRequest.lastResult.videolink.video
thanks!
ary
--- Alex Harui [EMAIL PROTECTED] mailto:aharui%40adobe.com wrote:
please post some code. Sounds like you might be
filtering before the
results come back from the server.
__
Need a vacation? Get great deals
to amazing places on Yahoo! Travel.
http://travel.yahoo.com/ http://travel.yahoo.com/
Re: [flexcoders] filterFunction on ArrayCollection
make sure you have a crossdomain.xml file on ur server
On 8/26/07, Tracy Spratt [EMAIL PROTECTED] wrote:
Works local but not on server often indicates a security issue. Are
you sure you are getting your data?
Also, this is probably not the best thing:
playlist=userRequest.lastResult.videolink.video
Use a result handler function to assign the event.result(don't use
lastResult, it is intended for binding espressions) to a local variable.
The result handler will also let you verify that/when your data result is
returned.
Tracy
--
*From:* flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] *On
Behalf Of *Ary
*Sent:* Sunday, August 26, 2007 6:07 PM
*To:* flexcoders@yahoogroups.com
*Subject:* RE: [flexcoders] filterFunction on ArrayCollection
Hi Alex, thx for replying, yes i thought so too...but
if it is...it won't work on local either..but it works
on localhost...
here's the code
private function startFilter(toFilter:String):void {
categoryString=toFilter;
tabSwitch(toFilter);
playlist=userRequest.lastResult.videolink.video
playlist.filterFunction=processFilter;
playlist.refresh();
dgUserRequest.selectedIndex=0;
}
private function processFilter(item:Object):Boolean
{
var result:Boolean=false;
if (!item.videocategory.length ||
item.videocategory.toUpperCase().indexOf(categoryString)
= 0){
result=true;
}
return result;
}
and here is the httpservice, trigerred on
creationComplete app. userRequest.send();
mx:HTTPService id=userRequest url=_fxrequest.php
useProxy=false method=POST
result=playlist=userRequest.lastResult.videolink.video
thanks!
ary
--- Alex Harui [EMAIL PROTECTED] aharui%40adobe.com wrote:
please post some code. Sounds like you might be
filtering before the
results come back from the server.
__
Need a vacation? Get great deals
to amazing places on Yahoo! Travel.
http://travel.yahoo.com/
--
Arpit Mathur
Lead Software Engineer,
Comcast Interactive Media
---
post your flex tips on
http://flextips.corank.com
Re: [flexcoders] filterFunction on ArrayCollection
Hi Guys, make sure you have a crossdomain. xml file on ur server could you explain me more details on this? :)thank you Also, this is probably not the best thing: playlist=userReques t.lastResult. videolink. video yes im getting my data, since at first its not filtered and it return all the data, errors came when i try to filter it, ok i will try to use result handler function to assign the event..thx tracy --- Arpit Mathur [EMAIL PROTECTED] wrote: make sure you have a crossdomain.xml file on ur server On 8/26/07, Tracy Spratt [EMAIL PROTECTED] wrote: Works local but not on server often indicates a security issue. Are you sure you are getting your data? Also, this is probably not the best thing: playlist=userRequest.lastResult.videolink.video Use a result handler function to assign the event.result(don't use lastResult, it is intended for binding espressions) to a local variable. The result handler will also let you verify that/when your data result is returned. Tracy Moody friends. Drama queens. Your life? Nope! - their life, your story. Play Sims Stories at Yahoo! Games. http://sims.yahoo.com/
[flexcoders] filterFunction issue with shared array collection in model / shared list
I have a shared arraycollection of value objects. Singeton, only one instance of this array collection. Dfferent views (in a tab navigator) are generated using this shared array collection but each view filters the data in a datagrid list with different criteria. So.. in each view i utilized the filterFunction to correctly filter the array collection and only display what i needed into my datagrid. That works great. However, when i set the filter function and refresh the arrayCollection all my other views (tab windows) change as well because they are all databound to the shared array collection... This does make sense... but not what i want. Maybe i need to put the filter on the datagrid for each view, not the array collection. Am i going about this wrong? I'm a newbie cairngorm and i believe this is an issue that others would run into.
RE: [flexcoders] filterFunction issue with shared array collection in model / shared list
create another arraycollection and assign its source to the other arraycollection's source From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of scott_flex Sent: Monday, March 26, 2007 8:11 AM To: flexcoders@yahoogroups.com Subject: [flexcoders] filterFunction issue with shared array collection in model / shared list I have a shared arraycollection of value objects. Singeton, only one instance of this array collection. Dfferent views (in a tab navigator) are generated using this shared array collection but each view filters the data in a datagrid list with different criteria. So.. in each view i utilized the filterFunction to correctly filter the array collection and only display what i needed into my datagrid. That works great. However, when i set the filter function and refresh the arrayCollection all my other views (tab windows) change as well because they are all databound to the shared array collection... This does make sense... but not what i want. Maybe i need to put the filter on the datagrid for each view, not the array collection. Am i going about this wrong? I'm a newbie cairngorm and i believe this is an issue that others would run into.
RE: [flexcoders] filterFunction issue with shared array collection in model / shared list
Take a look at the ListCollectionView class - you can pass your 'master' ArrayCollection into its constructor (because ArrayCollection implements IList). You can then set filter options on your ListCollectionView without affecting the 'master'. So you'd probably want to create a ListCollectionView for each of your individual views: http://livedocs.adobe.com/flex/2/langref/mx/collections/ListCollectionVi ew.html You can use a ListCollectionView as a dataProvider for your datagrid controls because it implements the required interfaces (just like ArrayCollection). The ListCollectionView will also listen for changes to the underlying 'master' list and update accordingly. From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of scott_flex Sent: Monday, March 26, 2007 4:11 PM To: flexcoders@yahoogroups.com Subject: [flexcoders] filterFunction issue with shared array collection in model / shared list I have a shared arraycollection of value objects. Singeton, only one instance of this array collection. Dfferent views (in a tab navigator) are generated using this shared array collection but each view filters the data in a datagrid list with different criteria. So.. in each view i utilized the filterFunction to correctly filter the array collection and only display what i needed into my datagrid. That works great. However, when i set the filter function and refresh the arrayCollection all my other views (tab windows) change as well because they are all databound to the shared array collection... This does make sense... but not what i want. Maybe i need to put the filter on the datagrid for each view, not the array collection. Am i going about this wrong? I'm a newbie cairngorm and i believe this is an issue that others would run into.
[flexcoders] filterFunction and List selection problem
I have a List with an ArrayCollection as the data provider. When I set a filter function on the collection, a strange thing happens: When clicking on a list item, the list elements re-arrange themselves in a strange way. The item selection occurs, but the selected item moves to another list position. When no filter function is set on the list, this does not occur. Any help or suggestions as why this is happening, would be appreciated. Thanks, - -Frank
[flexcoders] Filterfunction on a XMLListCollection is misbehaving
Here is the deal... I have an XMLListCollection as a dataProvider for a dataGrid, so that I can use custom sort and filterfunctions. My application provides for editing selected items (=rows) in the Grid, and when an edit is done, I update the Grid, by setting values of the selectedItem, e.g. myGrid.selectedItem.dataField = newValue; This works fine, if I have no filterFunction defined for the XMLListCollection. The updates happen inplace, the Grid is updated and the selectedItem (=row) is still highlighted, i.e. selected. The moment, I specify a filterFunction (one that returns true for all records, mind you), any update to a field in the current selectedItem will resort the Grid (no sort object specified, and the dataGrid column sort is set to false), and the item is always sorted second last in the grid. At the same time the selectedItem property is lost (set to null). I know how to disable and enableAutoUpdate (to avoid loosing the selectedItem), but it still does not explain, why the grid data gets resorted Any insight from the pros? Thanks Iko
[flexcoders] filterFunction
Hi All, Can some one help me in filterFunction method of listcollectionView or Array Collection .. I am looking for some examples on the same which will help . I am a bit confused in this I want to filter some records in array collection and can we use this method for this... Thanks Kumar - Heres a new way to find what you're looking for - Yahoo! Answers
Re: [flexcoders] filterFunction
I have what I call filter functions that will find items and remove them or if not found add them.. not sure what you are meaning by filter... On 2/9/07, kumarpal jain [EMAIL PROTECTED] wrote: Hi All, Can some one help me in filterFunction method of listcollectionView or Array Collection .. I am looking for some examples on the same which will help . I am a bit confused in this I want to filter some records in array collection and can we use this method for this... Thanks Kumar -- Here's a new way to find what you're looking for - Yahoo! Answershttp://us.rd.yahoo.com/mail/in/yanswers/*http://in.answers.yahoo.com/ -- http://indeegrumpee.spaces.live.com/
[flexcoders] filterFunction between ViewStack MXML components
Hi!
I was just wondering is it possible to make a filterfunction work between
ViewStack
components. What i mean is i'm calling the HTTP service in my main.mxml but
showing
the results in MovieView.mxml passing the data works fine. But i can't figure
out where i
should write the filter function:
// Filter function
public function movieFilter(item:Object):Boolean
{
var result:Boolean=false;
if (!item.title.length
|| item.title.toUpperCase().indexOf(filterInput.text.toUpperCase())
= 0)
if (!item.genres.length
||
item.genres.toUpperCase().indexOf(genresInput.selectedItem.data.toUpperCase
()) = 0)
result=true;
return result;
}
and where i should put:
movieCollection.filterFunction=movieFilter;
From the beginning i had all that in my Main.mxml and it worked fine. Can
somebody help
me, if you even get what i mean ?
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