Actionscript 3 :: Flex - Simulating A Click On A Button Inside An Item Renderer Of A Data Grid?
Sep 20, 2010
I'm using a data grid with an item renderer that creates a toggle button. The idea is to have a list of items and only allow one to be selected and pre-select one at start.I've got the single button selection working, meaning that when I click on on toggle button, the others are deselected.My problem is to create a way of pre-selecting an element of the data grid or simulate a click on a row and selecting the corresponding toggle button.If I use the datagrid.selectedIndex the result is a selection but the toggle button doesn't get selected.Here is the code exampleIn this example I am using the array value "selected" to define selected button, not my favourite solution but the one that worked first.The array collection:
public static const ValuesList : ArrayCollection = new ArrayCollection(
[
{ID:0, Name:"One", selected:false},
[code].....
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Feb 3, 2012
I'm currently working with the OLAPDataGrid component and got stuck at a relatively simple task: I want to style the last row of the grid differently from the rest, so my cell item renderer needs to know whether he's rendering the last row with content in the overall grid, including those rows currently not rendered because they are outside the visible grid space. AdvancedGridListData's rowIndex property only gets me the row index of the renderer relative to the range of visible grid rows, i.e. when I scroll down the grid, a data item with an index greater than 0 gets the rpw index = 0.
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Jun 1, 2010
I have an Item Renderer having HBox. Now I want to add child in that HBox from my application file using addChild method. Any way around for the same. I am not able to access the properties of HBox inside the item renderer.
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Aug 4, 2009
In my project i used one select all button for select all checkbox at click event . But i used datagrid ,iteam renderer within checkbox so no id of checkbox then how to select/unselect all checkbox ?
<mx:DataGrid id=newdatagrid>
<mx:columns>
<mx:DataGridColumn headerText="1" rendererIsEditor="true"
[Code]....
how can i implement select/unselect all button for checkbox?
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Nov 9, 2009
I have a page (below) that has a datagrid that lists "item"'s returned from an XML file (below) and when it loads it created a page in the viewstack for each item it finds (working) it also renders a page (below) inside each panel but i am having issues passing the data. Each page renders and loads but with the FIRST result of the XML data instead of each page having its own data they all have the same as the first page.
HomePage.mxml
<?xml version="1.0" encoding="utf-8"?>
<mx:Canvas xmlns:mx="http://www.adobe.com/2006/mxml"
width="100%" height="100%"
[Code].....
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Feb 25, 2009
I have a page (below) that has a datagrid that lists "item"'s returned from an XML file (below) and when it loads it created a page in the viewstack for each item it finds (working) it also renders a page (below) inside each panel but i am having issues passing the data. Each page renders and loads but with the FIRST result of the XML data instead of each page having its own data they all have the same as the first page.
HomePage.mxml
<?xml version="1.0" encoding="utf-8"?>
<mx:Canvas xmlns:mx="http://www.adobe.com/2006/mxml"
width="100%" height="100%"
[code]....
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Jul 7, 2010
I'm attempting to add an image to a datagrid item render dynamically in flex. Here is my DataGrid code The value of "str" in the getImagePath function is correct.
[Code]....
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Jun 10, 2011
I'm creating a mobile app in which I need to show a calendar with months at the top. The months are part of a component that extends from SkinnableDataContainer (and has some custom scrolling/behaviour - which is why I did'nt use a spark list). I need the months to be shown as a 'trapezium' shaped tab and so I'm using a png image as a mask in the item renderer for the component.
When the mask is not applied, it all works well - the months render, the list/data container selection works when I click on a month and so on.When the mask is applied, it renders well, scrolling and everything else seems to work well - but when I click on a month, nothing happens visually. And from the trace statements in my code, it appears list item selection is not changing. Looks like mouse clicks are not working.
Code:
public class TopCalendarMonthRenderer extends LabelItemRenderer {
[Embed(source="/assets/trapezium_alpha.png")]
private static var TrapeziumMask:Class;
private static var trapeziumMaskInstance:BitmapAsset;
[code]...
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Mar 4, 2011
<mx:itemRenderer>
<mx:Component>
<mx:Canvas>
[code]......
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Aug 8, 2011
Is there a way to apply a renderer to a grid in a way so that it doesn't modify the values in the data provider? I have a datagrid and on one of its columns I have a customer renderer which overrides the set data function and converts the number value in the dataprovider to a word. My problem is that when I sort the grid by that column it sorts by the new value, whereas I want it to sort by the old value that was originally in the dataprovider. Here is my renderer:
[Code]...
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Jun 22, 2010
I have a Data Grid with automacticly genorated columns, i now need to add data items into a spesific row / column of this grid e.g. col 2 row 3. It dosnt have a data provider at the moment as i wish to be very selective about which data goes where.
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Sep 8, 2010
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[Code]...
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Sep 24, 2009
I have a mx:Grid component in my flex application. But I would like to resize it by clicking and dragging in the border. This component doesn't allow doing that.I want to put a panel in each gridItem of this Grid component and resize it.
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Nov 24, 2009
I'd like to have an overlay that draws lines between selected items in different Flex 4 List controls.
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Jul 20, 2010
my renderer contains a canvas in it, i add some title-window, every time i see my tree previously added Title-Windows are visible, i want to access each n every item in tree and remove previosly added all windows from the rendere. how access all the item renderer in AS3 ?
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Nov 29, 2010
How do I wordwrap in a spark list w/ an itemrenderer? This posting at[URL] works 100% but when I try to set a separate item renderer, I can't get the word wrapping...instead, I get an ugly horizontal scroll bar. HEre is my mxml:
[Code].....
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May 9, 2011
I have an mx:tree with with TreeItemRenderer as below.
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Child1
Child2
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Child3
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I have the logic to rename the Parent1 in TreeItemRenderer and also I m able to get the Parent1 in the popup OldName TextInput.But after entering the new name i m not able to get that new name in the TreeItemRenderer.
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Jun 16, 2011
I use a spark List with a custom item renderer and an ArrayCollection for dataProvider.
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Aug 5, 2011
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Dec 7, 2011
ow do you display HTML formatted text in a Spark custom item renderer (Actionscript)?
Sample Code:
The html content in item.post_content displays as plain text in the IconItemRenderer messageFunction snippet below (which is just the default generated code for Icon Item renderer):
<s:itemRenderer>
<fx:Component>
<s:IconItemRenderer iconField="iconField"
iconWidth="64" iconHeight="64" labelField="post_title" messageFunction="getPost">
[code]...
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Jul 25, 2009
I have made the following item renderer in mxml, but when I use it in a list for some reason I can not select it. Am I doing something wrong?
<mx:HBox xmlns:mx="http://www.adobe.com/2006/mxml"
horizontalScrollPolicy="off">
<mx:Script>
[code]......
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Aug 15, 2009
I have a HorizontalList that is resized at runtime. The problem is that the items are not adjusting their height to the height of the HorizontalList. I use an item renderer (vBox) which has its height set to 100%. But the items always stay at their initial size.
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Sep 1, 2009
Within a DataGrid, I have a DataGridColumn that uses a custom component as the item renderer. Within the component, I have an ArrayCollection that stores a set of value objects. My problem is that I cannot access the ArrayCollection values from outside of the item renderer component. Does anyone know how it would be possible to do this? I have posted a code snippet below.
<mx:Script>
<![CDATA[
// Cannot access arrFiles from here.
[code].....
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Oct 20, 2009
I have a List and the item renderer displays an image. Whenever you scroll the list, and the item renderer refreshes, it redownloads the image. Causing there to always be a delay. Is there some way of caching it so it doesn't have to redownload every time causing a delay in showing the image every time you scroll the list?
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Apr 30, 2010
I'm trying to create a Flex DataGrid where the firstname and lastname are shown under each other, but in the DataGridColumn
Ideally I would want to do something like
<mx:columns>
<mx:DataGridColumn headerText="Column 2" dataField="time"/>
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Jun 17, 2010
I have a Renderer:
<?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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Oct 26, 2010
I have a Flex Spark List (well it's a Tree to be precise but it renders as a list) and as I'm scrolling through it I want to provide information about the item that is currently at the top of the list in context to the viewport. So this could be the 100th item in the list depending on how far you've scrolled down.
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Feb 27, 2011
I have a problem in my datagrid itemeditor This is my data grid component
<mx:DataGrid id="lessonPlanDataGrid" x="10" y="10" dataProvider="{studentLessonPlanArray}" height="271" width="270" editable="true">
[Code]...
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May 30, 2011
Is there a way to prevent recycling of item rendered with Spark components on Flex 4.5 ? It might sound ridiculous, but actually this would do the trick until i understand a bit more the rendering life-cycle
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Nov 28, 2011
I've been playing around with renderers the last few days for a mobile application. I'm creating a gridlike renderer that has columns that is light weight for a mobile app. It is a bit of a poor man's datagrid. The layout is fine. The question I have is controlling the height of each row in the list.
When measure() is called, I set the measuredHeight to:
measuredHeight = getElementPreferredHeight(ld) + verticalPadding;
Where vertical padding is:
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When I debug on the desktop, the measuredHeight is set to 12 and on the device (Motorola Atrix), it is set to 12. But when layoutContents is called, the unscaledHeight is a number much larger than my measuredHeight value (44 on the device, 66 when running on the desktop), resulting in more vertical whitespace surrounding each item than I care to have. How do I control that row height? I happen to be using a Datagroup for this particular example but in some playing around I did with just a simple list, I had the same issue. Somewhere the system is overriding my measuredHeight with some other value.
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