I have a List, and I have an ArrayCollection.
The ArrayCollection is something like:
<mx:ArrayCollection id="arrColl">
<mx:source>
<mx:Array>
[Code]....
I need the List to only display the scores of the student.
Something like:
<s:List dataprovider="arrColl[Student A]"/>
or:
<s:List dataprovider="arrColl.Student A."/>
Somewhere a get data to a 2 dimensional array. Is there any clever way to transform the array to a datagrid dataprovider without make a "for" loop?
View 1 RepliesI'm using a List which I need to be empty at the start. I'm adding items to it as needed by clicking a button. Since it's empty, I haven't added a dataProvider property
<s:List id="thelist" itemRenderer="listIR" />
To add an item, I'm adding it to the dataProvider directly
thelist.dataProvider.addItem()
but when I do that, it gives me this error
#1009: Cannot access a property or method of a null object reference.
Also I have a debugging Alert in the listIR itemRenderer itself and I see that when the list is created, I get that alert twice as if 2 itemRenderers were created, even though the list is supposed to be empty at the start.
How do I start with an empty dataProvider and add items smoothly to it?
I'm building a kind of dynamic level generator, at the moment I have it draw a grid of alternating coloured squares/plots (for visual debug), currently set at 1 pixel which I then scale up so they are easier to see. I make a list of all these open 'plots' in an array(maybe a dictionary would be better?)... Next I draw a random selection of roads on top of my grid in another sprite. Ranging in width from 2 to 8 plots. First drawing all the horizontal, and then the vertical ones. Now I'm wondering what would be the best way of finding all the plots/pixels that these roads occupy?I thought perhaps I could draw the roads into bitmap data, and then find the x,y values of all the black pixels? something like:
PHP Code:
var bData:BitmapData = new BitmapData(roads.width, roads.height, false);
bData.draw(roads)
[code]........
I'm trying to make an array and list it's elements in a text box.
Code:
tabs = new Array();
tabs[0] = "jerseys";
tabs[1] = "tshirts";
[code]....
In Flex I can create an ItemRenderer to represent each item in the Lists DataProvider but how do I access the instance of the ItemRenderer via the DataProviders Object? Something like myList.getItemRenderer(dp.getItemAt(10));
View 2 RepliesThe code below sets up a List object in the main controller class that uses a custom cell renderer (CustomListCell class). the CustomListCell class creates a Button object for the cell that will be used to delete itself from the List's DataProvider. How can I properly access the parent List object from its custom cell renderer?
//Controller Class
private function createList():void {
provider = new DataProvider(data);
list = new List();
list.width = 200;
list.height = 400;
[Code] .....
Is there a way so that every time the list is changed (data add, data deleted, etc.), the list will re-update or "refresh?"
View 2 RepliesI have a component that contains a list that implements a custom renderer. I use this component as a tooltip, keeping one in memory and just altering the databindings as necessary.
Something like this where TTComponent is a class that extends Canvas:
<s:TTComponent>
<s:BorderContainer>
<s:List id='lstItems' dataProvider="{data.Items}" width="50%" borderVisible="false" contentBackgroundColor="#222222">
[Code]....
Now, what happens is when data containing many items is set to tt.data, the list resizes itself larger and displays fine. However, after this, if data containing few items is set to tt.data, the component momentarily displays larger than it needs to be, then resizes itself smaller.
What I'd like to do is have the component resize itself before it displays, so I don't see the resize on screen.
I have a list (LIST#1) of artists:
2Pac
Adele
Amerie
Beyonce
Jason Aldean
Shakira
The Trews
I also have a list (LIST#2) that has the values #,A-Z - how would I create an alphabet jump? So If a user clicked on "A" in LIST#2 that would automatically scroll to "Adele" at the top of LIST#1 - not filter so he/she could scroll up to view 2Pac or down to view The Tews if they were not in the view yet. Its a standard Flex Spark List with an ArrayCollection as the dataProvider - the artist field is called: "title" along with a unique id field that is not visible to the user.
private function alphabet_listChange(evt:IndexChangeEvent) : void {
var letter:String;
letter = evt.currentTarget.selectedItems[0].toString();
trace(currentDictionary[letter]);
ui_lstLibraryList.ensureIndexIsVisible(currentDictionary[letter]);
[Code] ......
I have some xml, I want to give it to a List dataprovider, but based on an attribute match.
My Xml
<components>
<rows name="general">
<objects name="Start" image16="startflag16" image32="startflag32" class="someclass">
[Code].....
And I am trying to do something like below, If I remove (@name=="general") from below line it gives me all property
listView.dataProvider=list_components.rows(@name=="general").objects.property;
But it gives me error, so basically I want to get all property based on rows attribute name matching general
I have this error. I am very very new to the Flex world. I have this function which returns an ArrayList.
public function createDataProvider():ArrayList {
....
return new ArrayList(imgArray);
}
Later, I use it here:
<s:List id="pubmapList" dragEnabled="false" dropEnabled="false" dragMoveEnabled="false" dataProvider="{createDataProvider}">
Here, I got an error saying: implicit coercion of a value of type to an unrelated type mx.collections.ilist. I thought the IList implementation includes ArrayList.
In flex 4.5, I have an application that has a BorderContainer that loads a spark list (mxml style - _myList and the borderContainer is stored in a library outside of the parent application) that loads an arrayCollection with an itemRenderer (I should note said itemRenderer is not an inline renderer - on selection of an item in the list, the itemRenderer expands, loads a particular control within the item renderer based on data passed from the selected item in the list) and allows the user to perform a search. This works all well and good on startup/load, until I try to change the dataProvider for the list (my app allows users to switch data sources which then creates a new dataProvider with new variables). I have tried:
[Code]...
Objective:I would like to pass Skins to an itemRenderer (which is a Button) of a List, and be able to skin every button in that List.This is what I have:
List:
<s:List itemRenderer="renderers.ItemRenderer" dataProvider="{collectionWorkspace}" />
ArrayCollection:
<s:ArrayCollection id="collectionWorkspace">
<comp:Layout1 />[code]...
I get an error (fixed for clarification):Error: Skin for Application....Button1 cannot be found.
I have a simple list and a background refresh protocol.When the list is scrolled down, the refresh scrolls it back to the top. I want to stop this.I have tried catching the COLLECTION_CHANGE event and validateNow(); // try to get the component to reset to the new datalist.ensureIndexIsVisible(previousIndex); // actually, I search for the previous data id in the IList, but that's not importantThis fails because the list resets itself after the change).I hate to use a Timer, ENTER_FRAME, or callLater(), but I cannot seem to figure out a way.The only other alternatives I can see is sub-classing the List so it can catch the dataProviderChanged event the DataGroup in the skin is throwing.
View 4 Replieswhat I need to do is combine 5 arrays with 5 individual strings (which have come from a JSON webservice) into one single list item in FlashBuilder Burrito. [code]I've pulled these out successfully and each one traces in the debugger, although as I need them all in the same list I'm struggling to establish them as a dataprovider together.If I push the strings and arrays together it is impossible to read properly, as the main Titles are at a different level to any descriptors for the products which are in the arrays.
View 1 RepliesI have a Spark List container whose dataProvider is bound to a result set coming back from a RemoteObject call. Pretty standard stuff.
<s:List id="list" dataProvider="{model.stuff}" width="100%" height="100%"
selectedIndex="@{selectedSlider.value}"
itemRenderer="{stuffRenderer}">
</s:List>
The selectedIndex is associated with an HSlider, but that is not the problem. My issue is that I would like to automatically select a certain "preferred" element from the list (only initially...to guide the user).
I tried to do that in a creationComplete event but my data hadn't shown up yet...setting selectedIndex didn't work..
I'm trying to update a List component pushing new items inside his DataProvider object.
I've tried with a:
MY_LIST.invalidateList();
MY_LIST.validateNow();
but the list doesn't change, anyone has some suggestions?
I have used a method to shuffle a part of a Array, but i noticed that it does not work very well.When i run this method I sometimes get empty array values.So if you would try the example below and test it out some times you would get a right result but sometimes a wrong result.For example when i run this i get in my trace output:
a,b,c,d,g,,e,f (here after the g it goes wrong)
a,b,c,f,g,d,e (here it goes right)
a,b,c,d,,g,f,e (here it goes wrong)[code]...
I'm trying to get the a List component to display an array. This is what I have:
Listname.dataprovider = new DataProvider(arrayName);
This works well at populating the labels of the list. But once I click the item on the list. I get a null error because the data isn't there.
Is it possible for the array to fill in the data and the labels?
what the differences or similarities are between these and if there is some actionscript tool to convert back and forth between these types.
the data i'm getting is coming in from mysql in the form of name,job
joe, doctor
moe, lawyer
etc...
I need to convert this to dataProvider and then also to Json for some graphing program that can read json or xml.
Have a quick question, have a xml file like that:
[Code]....
I'm using the xml connector to retrieve the results then bound the items array to the dataprovider No problem to access the items but my question is how to access to var1 and var2 in actionscript. Could i bound it to a var?
I have an array collection as the dataprovider to a datagrid. When I change a value in the arraycollection, a particular row gets updated in the datagrid. I want to get the index of that particular row. How do I get it?
View 1 RepliesI am using a Repeater in an Accordian which does not appear to see a single element in userArray. If I add another entry to userArray then the Repeater works fine.
private function currUsersServiceHandler(event:ResultEvent):void{
if (event.result.currentUsers != null)
{
if (event.result.currentUsers.user is ArrayCollection) // if more than one elements are present
{
[code]....
Edit:There is another thing I have just noticed i.e. that the accordian does show a single tab (when Array has a single element) but it's not labeled with the first name which I am setting. If I enter another user, two tabs appear and both are labeled with names I am setting. The first tab appears labeled too then.
When a user selects a category from the first drop down box then i want the 2nd drop down to be updated based on the selection of the first drop down. I have created multiple ArrayCollections whose names are set to the "data" values of the first drop down, for instance:
[Bindable]
public var countries:ArrayCollection = new ArrayCollection([
{label:"USA",data:"USA"},
[code].....
I am trying to play movie clips from an array. I can do this using randObj[1] but would like to use a variable randObj[i] to play the movie clips. I do not want to use root. I think something is wrong with the syntax i am using because randObj[i] comes back undefined when i trace it. Here is the code i am using
Code:
i=0;
var randObj:Array = new Array("obj1", "obj2", "obj3");
[code]......
I have an array named "lagers1" when I trace lagers1[0] I get: lagers1[0]= _level0.firth_l0
Now I want to decide if "firth" is in the name of "_level0.firth_l0". I have tried with slice but all the time it shows undefined. Is there a way to get a part of an arraymname in a variable?
I want to create one array based on another, but only using part of the data. Here's my first array:
Code:
var dropzoneArray = new Array();
dropzoneArray.push("disease0", "image0.jpg");
[code].....
I'll start by posting my code then explain what I want it to achieve.
[Code]...
What I am attempting and failing to do after much trial and error is to have a random ingredient from the ingredientList array pushed into the previewIngredients array making sure the new value going in is not already in the preview ingredients array. If the same value is there I want it to keep choosing an ingredient from the list array until it finds a value thats not in the preview array then push that one in there. It feels like I'm getting close but obviously I'm either going about it the wrong way or just missing a little somthing somthing out.
I am currently storing the items of this array as a variable. thats cool, but what I want to do is remove the b so I get 1 2 3 4 5 6 7 8 9 10 instead of b1 b2 b3 b4 etc.
Code:
buttonArray = [Enter_me.b1, Enter_me.b2, Enter_me.b3, Enter_me.b4, Enter_me.b5, Enter_me.
