Flex :: Navigate Within An ItemRenderer?

May 11, 2011

How can we navigate within an itemRenderer? For example, in Views we use the View.navigator (ViewNavigator) to push and pop views, there is no such feature in ItemRenderer.

Navigation within a View (Easy)

<s:View>
<s:HGroup >
<s:Button label="Questionnaire" click="navigator.pushView(view.QuestionnaireCategory1View)"/>
</s:HGroup>

Navigation within a Item Renderer (Impossible?)

<?xml version="1.0" encoding="utf-8"?>
<s:ItemRenderer xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"

[code]...

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i have a problem using the itemRenderer functionality. When using an ArrayCollection the visible Data in the DataGrid using the itemRenderer will be rendered just fine. But if i start scrolling the entries are repeating in the cells using the renderer. The cells are not filled with date according to the id. What mistake i'm doing here.

I read a lot of the explainations like:

[URL]

here is the code for the set data function (itemRenderer is extending HBox):

override public function set data(value:Object):void {
_data = value;
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[code]....

Flex :: Itemrenderer - Referencing And Setting A Single Item Renderer Instance In A Flex Tree At Runtime?

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Anyone know how to change a single instance of an item renderer for a Flex tree item at runtime? To reiterate, I'm not trying to change the entire tree's item renderer like this:tree.itemRenderer = new ClassFactory(ItemRenderer2);I'm trying to change the item renderer of a single tree item like this (the following code does not work):tree.selectedItem.itemRenderer = new ClassFactory(ItemRenderer2);To put it more simply, does anyone know how to reference an instance of an item renderer and set it to a new item renderer class? I've tried using the Tree's itemToItemRenderer() method with no success.

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I want to create a list of progress bars and update the list accordingly.I have group data in an Array as

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The values in the array object indicate name of group,minimum,maximum and current value for the group (to be used in progressbar).I used the list with "mx.controls.ProgressBar" as itemRenderer as

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I have a List which has TextInput as itemRenderers for all its items. Upon application launch the items are rendered in the TextInputs correctly. The data is being populated from an Array of Objects.

What I want is, after the data has been populated in the ItemRenderers, I want to have an additional item renderer (TextInput of course)...so that if the user wants to enter another item, he can put it in the additional textInput.

And I also want to add the additional itemRenderer each time the user has added a new item and taps ENTER on the newly added item.

Below is my itemRenderer, there is the clearTxt_enterHandler handler..but I wonder how to add another itemRenderer upon "Enter".

<?xml version="1.0" encoding="utf-8"?>
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[Code].....

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I'm developing a flex mobile app. I've declared a Titlewindow which contains the alert message following the example of "TourdeFlex". And I failed to navigate to a new View after clicking YES button.

<fx:Script>
<![CDATA[
protected function some_handler():void
{

[code]....

This code can be successfully compiled but it was wrong during runtime:Error #1009: Cannot access a property or method of a null object reference.

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Is it possible to put an itemrenderer on the DataGrid itself rather than a datagridcolumn? I could only find examples for datagridcolumn. I want a generic itemrenderer on all the items in a datagrid...

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i used iteamreander in datagrid . if i select checkbox in grid automatically select another checkbox why? plz explain My xml data is more then 50 records.

<mx:DataGrid change="calculate()" id="calamount" x="0" y="3" width="327"
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[code]....

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I have an AC with several questions and assoicated answers. These must be shown in a DG, and the idea is that the rows and colums of the DG are bound to the AC. For example, if the answer to question1 is Yes, the Yes-button must be true, and both the others must be false (as in normal radiobuttongroup behaviour). But when I change a button by clicking it, the actions datafield of the AC should change accordingly. Am I clear enough here?

It is ment for dynamic questionnaires.

<?xml version = "1.0"?>
<mx:Application xmlns:mx = "http://www.adobe.com/2006/mxml">
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[Code].....

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I have this DataGrid:

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<mx:columns>
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[code].....

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[Bindable]public var headingData1:Object = new Object();

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[Code]....

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I have a custom item renderer which I use for my DataGrid. The DataGrid has specified selectionColor, rollOverColor and themeColor. The Problem is that the custom item renderer, does ignore those colors, and doesn't give any Feedback...

I tried to add the lines:
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I have a advanceddatagrid that has around 15 columns. Some are string, some are numbers. I have shown 4 columns below. The number columns have formatting done for zero precision and 2 digits precision. The itemRenderer is just to show Blue Color if the number is +ve and Red Color if the number is -ve. It looks something like below

<mx:columns>
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[Code] ....

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Is it possible to use a renderer for for a treecolumn in an advanceddatagrid and still keep the hierarchal functionality? If I use a renderer provider I lose the the arrow for the tree dropdown. I want to keep the tree functionality and change the display of the column.(and not just the folder image)

<mx:AdvancedDataGridRendererProvider column="{titleCol}" depth="1"
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[code].....

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[code].....

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Which parameter should I put not to automatically resize an Image that is put on an ItemRenderer?

Ex (in which the image gets resized):

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[Code].....

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I have a Flex list and a custom ItemRenderer. I'd like to be able to have some items in the list use a different ItemRenderer (say, depending on the class of the item). Is this possible?

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I have created a custom ComboCheck which extends the spark DropDownList that is a DropDownList of checkboxes. Inside of my itemRenderer I have the code:

[Bindable]override public function set data (value:Object):void {
if (value!=null) {
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[Code].....

This will also not cause the dropdownlist to reset to scrollPosition 0

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I have a XML structure like:

<Main>
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[code].....

Actionscript :: Use Itemrenderer In Bar Charts In Flex?

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I need to use the item renderer in Barchart. but there is no itemRenderer property in barChart.

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have an advanced datagrid with a simple custom mxadvanceddatagriditemrenderer. I want the renderer to only display an image when the row is hovered or selected. Right now I am doing that by using the excludeFrom="normal" tag on my image.

It works fine (minus the selected state, it disappears when selected) when I have the states hovered and normal defined. When I try to define a selected state, upon row click I get the following error:

RangeError: Index 0 is out of range.
at spark.components::Group/checkForRangeError()[E:dev4.xframeworksprojectssparksrcsparkcomponentsGroup.as:1106]
at spark.components::Group/setElementIndex()[E:dev4.xframeworksprojectssparksrcsparkcomponentsGroup.as:1265]

[code]....

Actionscript 3 :: Flex DropDownList ItemRenderer Probably A Bug

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I am trying to make a simple change on look of Flex 4.5 Spark DropDownLis trough extending it's item renderer, anyway even a just shiny new item renderer bring me as result a items which labels is blanks. If i remove the renderer everything is fine, but with it - the items is blank white.

[Code]...

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I have a bunch of dynamic validators that I create in my application.I have an mxml which contains a s:DataGroup.The DataGroup contains an itemRenderer. In this itemRenderer, I have a combobox which I want to validate.I perform the validation like this ont the creationComplete of the itemRenderer:[code]Of course, when I do this, the itemrenderer is recycling, and the validator appears in places in which i do not want it to.

Flex - AdvancedDataGrid ItemRenderer Ignored W/HierarchicalData?

Jun 13, 2011

I am using an AdvancedDataGrid with some hierarchical data. In the first column, I want to indicate whether or not the "name" field is editable by graying out the text for the "name" property of my objects. It's very odd, but when I set the AdvancedDataGridColumn's dataField property to "name", and have it in the first column, it seems to completely ignore my inline ItemRenderer. If I change the dataField property to something else, or change the column ordering so the Name column isn't first, everything suddenly works.

Let me know if any more code would help, but here is the simple ItemRenderer I'm trying to use in the first column:

[Code]...

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