Flex :: Flash Builder - Data Provider Not Working If XML Has Single Node Value Or Less
May 20, 2010
i get this error when i retrieve an XML that only has 1 node (no repeating nodes) and i try to store in an ArrayCollection. -When I have MORE than 1 "name" nodes...i do NOT get an error. My test show that XMLListCollection does NOT work either.
TypeError: Error #1034: Type Coercion failed: cannot convert "XXXXXX" to mx.collections.ArrayCollection.
this error occurs as the line of code:
myList= e.result.list.name;
Why can't ArrayCollection work with a single node? I'm using this ArrayCollection as a dataprovider for a Component -is there an alternative I can use that will take BOTH single and repeating nodes as well as work as a dataprovider?
code:
[Bindable]
private var myList:ArrayCollection= new ArrayCollection();
private function getList(e:Event):void{
var getStudyLoungesService:HTTPService = new HTTPService();
I have a Flex tree with an ArrayCollection as data provider. The ArrayCollection is composed by objects linked eachother by the "children" field (that is an Array containing other children objects)
From a video on AdobeTV, I tried to play with example empWeb (LiveCycle Data Services).In Flex Builder 3 (FB3) everything works fine. When I tried this on Flash Builder 4.0 Beta (FB4) it doesn't work. When I replaced original xmlns declarations (2009, spark, halo)with declarations from FB3 (2006) it works. Could you explain why?I'm using the default SDKs (Flex 3.2 for FB3 and Flex 4.0 for FB4). I investigated this (please see 3 source code examples). Source #1 works OK in FB3 and FB4, Source #2 gives a FB4 compilation error message: [code]
I have a dataProvider and there is an object in the dataProvider. I want to know if there is a way to see if you can check to see if part of the object exists. So lets say I have an object with usernames and passwords and I want to add a username to that dataProvider
I am trying to drag and drop hierarchical data in the same advanced data grid, and I would like the data provider to updated when the ADG is updated. (I want to be able to save and load this tree, so it is important that drags and drops are saved.)
[URL]
The sample app has an ADG showing hierarchical data as well as flat data. The first column of each datagrid shows the rowindex of the underlying data.
If you rearrange the items on the left ADG, the row indexes become unordered. If you click traceTree you see that the data provider is not in order.
On the other hand if you do the same on the right, the row numbers stay ordered even when the objects move around and if you click traceFlat, the data provider is in the order shown on ADG
My goal is to have the data provider order match the ADG order for the left grid which is displaying hierarchical data.
I have a radio button group within a data grid, whenever I attempt to change the selected radio button the web page crashes. Below is how I put together the radio button in the data grid.
I want to display the same data in a chart and a data grid. I want to use the same data provider for both of them to reduce the amount of SQL queries.How do I transform the database structure into the chart structure and into the table structure using ActionScript?*
I have a datagrid that uses an array of objects as the data provider. The objects are essentially key/value pairs:
{ foo:"something"} { bar:"hello"} { caca:"lorem"}
The datagrid has 2 columns. The first column is the key and the second column is the value. Right now my grid looks like:
My dataFormatter function makes sure that depending on the column (i.e. the dataField value) the correct key or value gets printed out. This works fine for displaying. However, as soon as I try and edit the value field it essentially adds a new value into the object with a key of '1'. For example, if I edit the {caca:"lorem"} object it will then contain the value {caca:"lorem",1:"new value"}.
Is there any possible way I can set the DataGridColumn so that when I edit a value it will update the value associated with the key rather than inserting a new value? I've tried using a custom item editor but it still does the insert. It seems like I need to be able to update the 'dataField' with the actual key value but I'm not sure how to do that.
I have a Flex tree with an ArrayCollection as data provider. The collection holds an array of CategoryVO objects. Each object can have another array of CategoryVO objects inside it's "child" attribute. This way the tree displays the data correctly. Now I want to get the parent of a specific item, e.g. tree.selectedItem. Using XML as data provider the item parent is avaiable thorugh the parent() method. But I can't convert my data to XML. How can I get an item's parent? Perphaps using the tree's dataDescriptor?
Now I have added my tree just below the list and I have saved counting from 10 to 19 in one.xml, 20 to 29 in two.xml and so on in different XML file. I have no clue how to connect the XML containing counting from 10 to 19 as the single node in tree at the selection of label one in list
I have a situation where I have a List showing a queue of Upload Objects:
[Code]...
I would like to create three different views of the List: One showing All uploads in the queue Another showing only the Upload items with Upload.type == "Update" and another showing only the items with Upload.type == "Create". Another example of this would be on an email inbox, where we could filter "All, unread, or read". I realise I could just create three different lists, one for each view of the list (maybe I'm just being picky) but I was wondering: Is there is any easy way to conditionally select the items to display from a DataProvider based on a parameter (for example type =="Upload") so I don't have to juggle three separate ArrayCollections about?
How do I differentiate between a data provider update and a itemrender being recycled when using a custom itemrenderer in a DataGroup?I have overridden the set data function of the custom item renderer, but I have found that on making a change to the ArrayCollection used as the DataProvider some of the item renderers are not assigned the same object they had before the update. This has made it almost impossible for me to distinguish between a data update and an itemrender being recycled. Also, the data never seems to get set to a value = null, so that seems to be out as well.
I've just installed Flash builder on my machine, which went ahead and installed the debug version of Flash on my machine as well. It appears now that this has broken Flash in my browsers or at least the browsers have no idea where flash is located on my machine. When I open a browser and navigate to a Flash page I get the message,
"Alternate HTML content should be placed here. This content requires the Adobe Flash Player. Get Flash "
This is from Google chrome but FF is also effected.
Im using camera class in my mobile application and I used Camera.names to fill my list and i tried to pass the selected value to getcamera() method but its not working.Here s my code
I am trying to assign a value from my database to a variable inside my Flex application. So far I read up a few ideas and I have at the moment the following code using a PHP web service:
protected function btnSubmitUser_clickHandler(event:MouseEvent):void { username = txtUsername.text;
I'm using the data/services in Flash Builder 4 to access the php functions of a site within an Air based Crud, and figuring out the most efficient ways to work with the data objects that come back.
[Code]...
The data comes back as an associative array, which is fine if I want everything from it to be treated the same. But I'm not sure how I am supposed to pull a particular column from the array without having to go through a for loop to parse through it.. since right now the contact name would be at allContacts[i].name.
Basically I want to make a list of the names from the allContacts, so I want an array of allContacts[i].name to set as the data provider for a element. Is there any way to get that done without having to write a for loop to convert it into a new array or writing a new php function?
I have a SplitViewNavigator with two split views. In one of the views I have a list and in another one I have questions. User must solve the question and when user click send button, he will see another question.
But when user click to send button in one view, how can i know this in the other view? I'm a newbie in Flash Builder and I'm searching for this for hours.
In my Flex app I am using a repeater to show a report on my database data. On this report the user can "drill-down" on the data to show more detail. In order to make this easier on the eye I have a header label and then a datagrid within the repeater.Whilst this works perfectly, because the dataprovider for the datagrid comes from an array in the repeaters dataprovider, it is causing the following warning:Data binding will not be able to detect assignments to "report"The warning is for this line:
I am having trouble searching through a list component and/or dataprovider to see if an item already exists. Basically i am adding items to the list when a item is dragged on to the list. But i want to check to see if an item is already added so not to duplicate items. any ideas would be great.
As i understand datagrid only is used as a form to present the loaded data in.So when we add new row to component or try to modify the value in cell and save it (xml file), we won't see those changes in saved file. So can some one explain to me or direct me to tutorial on how to update data in dataprovider, and how to save it to xml file.
I have been trying to populate a tree control via an httpservice that uses php to talk to a database. The queries work fine and the data comes back in the following format from php: echo "<root>"; echo "<topic>"; echo "<sectioncode>$sectioncode</sectioncode>"; echo "<children>"; echo "<labtitle>$title</labtitle>"; echo "</children>"; echo "</lab>"; echo "</root>";
Flex can see this and interprets the heirarchy fine unless i try to format the resultformat in the httpservce (if i do that it goes a little nuts). The results from the php query to the db come back as an ArrayCollection with each containing a "root->topic->sectioncode->title" type of structure (which is what I want). When I go and try to use this Arraycollection as a dataprovider for a tree control, it doesn't work at all. When I use the arraycollection as the dataprovider I get [object,object] for every row in the tree and there is no parent/child structure.
Ideally I would like the title to be a child of the numbercode, but when i try and format the return from xml like that the number becomes and object without a value and the title becomes a child. I have a feeling that I am missing something in the php return to show the structure to flex more clearly and also something in the tree to implement it as the data provider better. Here is the code that I am using in the tree: <mx:Tree x="25" y="48" height="451" id="ilabtree" dataProvider="{labarray}" labelField="@title" width="152" textAlign="center"></mx:Tree>
I get no problems when the number of item returned is more than 1. But when it's only 1 item I get an error cannot convert XMLList to mx.collections.IList. I tried different solutions including trying to cast it as XMLListCollection but it still gives an error for single items. Does anyone know of a way to possibly solve this?
