Actionscript :: DataGrid: Update Each Row DataProvider Is Changed?
Mar 24, 2010
In a DataGrid, how can I force data() of all itemRenderers on visible rows to be called when I've made an update to the dataProvider.I'n the following the Grid isn't updated after pressing doSomething. If I have a large list the update is done when scrolling down and then back up again, or in the case of the TreeGrid i open/close a node.
<?xml version="1.0" ?>
<mx:VBox
xmlns:mx="http://www.adobe.com/2006/mxml"[code].....
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Dec 26, 2010
I have two dataProvider's for one DropDownList. The following code can be compiled and run.
<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
[code].....
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Jan 10, 2011
I'm implementing some kind of combobox control (by extending spark.components.supportClasses.DropDownListBase)
Now, inside this control; I need to know:
If the dataprovider is changed/assigned. (which I can do... the first approach below works); if any item in the dataprovider collection has changed.
I tried 2 methods that did not do the trick...
1ST APPROACH:
2ND APPROACH:
UPDATE: Edited above.. The first approach lets me know if the dataprovider is changed but not if any item is updated in the dataprovider collection. The second approach does not work at all..
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Feb 14, 2010
I've added an eventListener to the COLLECTION_CHANGE event that is fired when the grid is finished resorting the items in its dataProvider, after the user clicks on a column header:MyType (myDataGrid.dataProvider).addEventListener(CollectionEvent.COLLECTION_CHANGE,onDataGridResort);
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Oct 15, 2011
I have two datagrids:
- Division
- Members
Both have single columns. Selecting one item from Divsions datagrid should display members of that Division in the Members datagrid. But following code has some problem and Members of a particular division do not show up when respective Divsion is clicked.
Following are some snippets of the related code. Hope someone can spot an error in it.
[Code]..
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Feb 6, 2011
I have a tree with a dataprovider that is an XMLListCollection. The source of the dataprovider is the result of a HTTPService:
Code:
<s:HTTPService id="xmlService" showBusyCursor="true" result="handlexmlResult(event)" resultFormat="e4x" fault="xmlService_faultHandler(event)"/>
[code]....
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Dec 16, 2009
i have the following code:
<mx:Repeater id="user" dataProvider="{data}">
<mx:VBox styleName="repeaterVBox">
<mx:Text text="{user.currentItem.a}. {user.currentItem.b}"
[Code]....
the dataProvider 'data' updated itself every 3 seconds, so every 3 seconds that is a flicker of some sort, i see for a really short time an empty area and then it gets redrawn again. is there a way to make the update somewhat faster ?
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Jun 10, 2010
I have a class Grid which produces a graph paper like grid on in the drawing area. I then have 5 other classes for different shapes to draw with; Line, Polygon, Ellipse, Curve, Arc Now, these 5 classes use an instance of Grid because Grid has a resolution and a scale. Inside Grid I have:
public function set resolution(x:Number):void {
_gap = (modBy10(x) / 10);
_scale = (modBy10(x) / (this.resolution * _scale));
[code]....
I'm just lost for a solution on how to update every instance of my 5 drawing classes when Grid is changed.For instance, Polygon is made up of multiple instances of Line, Line(length, angle) where "length" is in either in, ft, cm, or m. If the user wishes to change the scale from say 10ft per 100px resolution to 20ft per 80px.. Is there an easier way than re-drawing every Line inside Polygon?
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Jan 14, 2011
I've succesfully loaded and parsed this XML file, using XMLParser and AS2:
<Resources>
<item author="Julian" date="28/12/2010" time="01:18" id="876" like="8" dislike="5">
<Text>Sample paragraph</Text>
</item>
[code].....
Now, what I need, is to increase and store the "like" and "dislike" values with the click of a button, but I don't know how to modify and store them in the existing nodes (eg., without adding new ones).Do I need to use PHP, or can AS2 handle it by itself?
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May 18, 2004
I have 2 textfields...They have to be related to each other so when I change the data in one of them, the other changes too (not identically... calculations and stuff) And when I change the second one the, first one has to change accordingly... like a 2-way thing Has that something to do with listeners mby?
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Feb 3, 2011
Is there a way so that every time the list is changed (data add, data deleted, etc.), the list will re-update or "refresh?"
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Jun 30, 2011
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.
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Dec 4, 2009
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?
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Nov 11, 2011
I have a Datagrid with an ArrayCollection as DataProvider, the arrayCollection is partially generated by a remoteObject call, the dataprovider seems to works at least until I try to edit the field...By the RemoteObject I only receive an ArrayCollection with the field ip, but the datagrid looks for the fields ip, check and save...If I add/edit this new field it works, but only under particular condition
The DataGrid:
<s:DataGrid id="datagrid" left="10" right="10" top="136"
dataProvider="{listaIPCheck}" bottom="10" requestedRowCount="4">
<s:columns>[code].....
This code always work in the 3 points, so at the end of the call the ArrayCollection is always filled with the new values, but the datagrid refresh the items only in point #1 and #2.
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Mar 20, 2009
What should I be using to pull information from either DataGrid or DataProvider Cells. I guess itemToLabel(), or getEditingData() doesnt work any more.
[Code]...
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Feb 22, 2010
i am working on an aplication using flex,adobe air...i have a datagrid with a XML as my dataprovider...during the execution of program my XML is updated....after XMl is updated and saved my datagrid should also get update..I have used Dataprovidername.refresh() method but it is not working.
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Sep 9, 2010
I'm trying to get this code working:
<mx:DataGrid x="359" y="221" width="623" height="176">
<mx:dataProvider>
<fx:Object name="Garbage Collection" code="7777" hours="2"/>
<fx:Object name="Road Repair" code="8888" hours="6"/>
<fx:Object name="Lawn Maintenance" code="9999" hours="12"/>
[Code] .....
I even don't have the header text in my columns.
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Mar 13, 2011
There are several ArrayCollections and DataGrid in my application. Number of ArrayCollections determined by the input data. How to create own dataprovider for each DataGrid column?
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Dec 10, 2011
I create a DataGrid to display a XML file and I have used XMLListCollection before. But when I modified the XML file, the DataGrid does NOT refresh itself automatically. I googled for this problem and found these links: refresh flex dataGrid
[Code]...
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Oct 11, 2010
I have an editable grid and would like to update values based on the edited cell and I am doing this in the itemEditEndHandler such that when they finish editing a cell I update other cells that are dependent on it. the only problem is in the itemEditEndHandler the new value has not registered yet. If I try and get the value of the cell i find that its still giving me the old value and not the new value that I have entered.
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Feb 7, 2010
I have a main datagrid, and want to launch a window with another datagrid in it, bringing in a different dataprovider. However, when I do this it acts funnny, brings in some default datagrid information and then gives me an error when I try to set the dataprovider:"multiple initializers for property dataprovider. (note: 'dataprovider' is the default property of mx.controls.datagrid)"
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Mar 11, 2010
Im working at a DataGrid which has a custom itemRenderer with a checkbox and a Label inside. Im struggling adding the the values from a xml to the wright label dynamically... how can I make the connection from the datagrid's dataProvider (a xml doc) to the label and the checkbox? My itemRenderer loks a following:
<mx:Component id="ChoiceRenderer">
<mx:HBox width="100%" height="100%" horizontalAlign="center" verticalAlign="middle" horizontalScrollPolicy="off">
<mx:CheckBox/>[code].....
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Jul 19, 2010
i have a method with brings data of particular table, as given my parameter to that method,
now i want to fetch data from corresponding table and it too list, and send back flex and form dynamically Grid & add dataprovider dynamically as for its corresponded table colomns in flex side ?
Remote objec(java class)
public List<List<String>> getMasterTableData(String name)
{
String designMaster = "tbl_design_master"+name;
[Code]....
Now i want this create a Datagrid in flex dynamically by using its design & master data table in action script i done everyting , my dataGrid had formed as for his master design,but data is not showing ?
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Aug 9, 2011
My Flex datagrid automatically scrolls to the top when I update the dataProvider (ArrayCollection). I do not want this to happen, but I still want all of the objects to update. I am developing a semi-real time dashboard for a customer's management system, that will update often. If it scrolls to the top every time it updates, it will be very difficult and frustrating to use.I've attempted to use the following techniques to prevent this, none have worked.
dataProvider = updatedDataProvider;
dataProvider.updateItem(dataProvider);
dataProvider.source = updatedDataProvider.source;
dataProvider.updateItem(dataProvider);
I've attempted to dispatch a mouse event to hold the vertical scrollbar in place, I've attempted to lock the vertical scrollbar position value in place (saving and reassigning)..
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Oct 26, 2011
I need to display DropDownLists in a column of a DataGrid in my Flex application. Here is what I am doing:
First, I have a item renderer function that creates a custom item renderer, and passes it a property that is an IList that will be used as the dataProvider of the dropDownList:
private function rendererFunction(item:Object):ClassFactory {
var itemRenderer:ClassFactory = new ClassFactory(AudActionDropDownIR);
itemRenderer.properties = {AudActionData: AudActionData};
[Code]....
First, how can I call the init function when the renderer is created? Second, when I set the column's itemRendererFunction="rendererFunction", the app will not launch, a white screen comes up. But when I set itemRenderer="components.AudActionDropDownIR", the app will launch, but of course there is no data in the dropdown list.
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Aug 26, 2009
I have a flex datagrid. it is bound to an array collection. if the user sorts on column X it works fine. then, if the user causes the array collection to change, the datagrid forgets that it was sorted on column X.what do I need to do to preserve this sort preference so that the new array data will appear sorted by column X?
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Feb 16, 2011
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?
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Oct 12, 2008
I have a datagrid component and each time I update it, The scroller goes to the top, and doesn't stay in the same place it was before the update.
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Dec 18, 2011
I'm creating Datagrid dynamically and giving each row's first column a custom checkbox cellrenderer as noted here: [URL]. I have added an ITEM_CLICK event listener to the datagrid as such:
Code: datagrid.addEventListener(ListEvent.ITEM_CLICK, ToggleCheckBox); However, for the life of me I cannot figure out A) how to target the CheckBox specifically, B) how to toggle its' selected value, and C) how to finally update the datagrid view to reflect the toggled option.
Code:
private function ToggleCheckBox(e:ListEvent) {
// do some magic
}
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Feb 25, 2011
I want to update a single cell value in a datagrid, is this possible?here is the code from adobe for replaceItemAt example:
my_dg.setSize(140, 100);my_dg.move(10, 40);replace_button.move(10, 10);// Set up sample data.var myDP_array:Array = new Array();myDP_array.push({name:"Clark", score:3135});myDP_array.push({name:"Bruce",
[Code]....
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