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">
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I am trying to turn labels red when they can no longer be added to a list because of size requirements. The renderer works but Flex creates a separate component. I can't think of any good way to get that value to the new component.[code]
View 1 RepliesI'm trying to remove the tooltip from the checkbox inside an inline itemrenderer in a datagrid but I still get the tooltip box but with nothing in it. I want the tooltip box removed completely.[code]
View 2 RepliesI use a spark List with a custom item renderer and an ArrayCollection for dataProvider.
The ItemRenderer looks something like
<mx:TextInput id="txtValue1" text="{data.myFirstValue}"/>
<mx:TextInput id="txtValue2" text="{data.mySecondValue}"/>
However, even though I change the text in txtValue1 or txtValue2, those are not actually changed in the object inside the ArrayCollection.
myFirstValue and mySecondValue are decorated with the [Bindable] tag.
My understanding is that if the text property is set to be bound a certain property, the changes should be automatically applied.
So the HACK (or so I think) that I use is to listen to the focusOut event of each textbox, and access the parent data provider and set the the values manually.
I have a datgrid with two inline item renderers. The dataprovider for my DG is a nested object (objects within objects within objects i.e 3-layered). Main Object - 1st Level
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I use 2 item renderers (one for each datagrid column) which loops thro the 2nd level object1 and 2 respectively (the 2nd level object is a dynamic array of objects, in that the number of objects within keep changing). Within the item renderer I loop thro the 2nd level object using a foreach and then display the data. The data is a linkbutton, which when clicked , calls a remote object function to delete the data from the database
now on the result event of the remote object function call, i call the function to repopulate the DG, so that the updated data is displayed. When i click on the linkbutton in the first row, the backend works perfectly fine (the data gets deleted from the database and the refreshed data is sent back), but for some reason, the deleted data suddenly appears in the 2nd row. When i delete it from the second row, it appears on the 3rd row (nothing happens in the backend since the data is already deleted).. and so on, till it appears on the last row and then the DG looks exactly the way it shld have looked after the first delete.
This is just the beginning. The second item renderer also displays a linkbutton, which when clicked, displays that data in the previous column (the one where this data can be deleted). When i click on 1st row, the data gets added in the previous column of the second row. and so on.. Basically, my DG is acting really weird. I overrided the set data function in the item renderer to refrsh the data and called its invalidateDisplayList. I also call the Datagrid's invalidateDisplayList function after each refresh. The behavior remains the same.
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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"/>
<mx:DataGridColumn headerText="Column 2" dataField="firstname,lastname" itemRenderer="renderers.FirstNameLastName"/>
so that both values get passed to the itemrenderer, is this possible?
I have to put 2 numeric stepper components in one column of a datagrid. I suppose I need to write my own item renederer code for that. How to write a code for putting 2 numeric stepper components in one coulmn of datagrid.
The 2 numeric steppers would work as time (Hour and Min) components. I cannot use readily availabel time components, and hence have to write something of the above for my own time component.
Getting error while run the checkBox item renderer in advanced datagrid with out data.
Error: Cannot access a property or method of a null object reference.
Code:
public function set listData(value:BaseListData):void {
_listData=value;
_dataGrid=value.owner as AdvancedDataGrid;
_dataField=(value as AdvancedDataGridListData).dataField;
}
Here value is coming null, so I am getting above exception.
I've a custom itemRenderer for my datagrid. To set the actual data I use the following method:
override public function set data(side:Object):void{
...
}
As soon as I use this function the cell doesn't show up any item Editor anymore. Why is that? When I remove this function the itemEditor is working but with the wrong initialization data.
In datagrid i shows number of checkbox for example 20 checkboz ,in 20 checkbox if i select any 15 checkboxs then remining checkboxs will be disable (enabled="false" But 15 selected checkbox accessable ?
How can i do that . i tried
<mx:DataGrid id="dg" width="100%" height="100%" rowCount="5"
dataProvider="{dp}">
<mx:columns>[code]...
Is there a way to make the default item renderer in a Datagrid look like a text input field?
I just want to tell the user, that he can change the value of this cell.
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;
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<mx:itemRenderer>
<mx:Component>
<mx:Canvas>
[code]......
I am using this example from [URL]...I have a datagrid and trying to dynamically add button to one of datagrid column. But I want this Button as an ItemRenderer to be written in ActionScript and not MXML.
View 2 RepliesIn this app that has an inline item editor, if you click on a location cell then press tab, the value in the location cell is wiped out.
focusOut doesn't work, nor could I get this to work in DataGrid itemEditEnding etc.
See this Flex forums post, because posting code here rots:[URL]
I have a Datagroup with a custom item renderer the momment I bind it to XML from an http service it stops working.
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I'd like to have an overlay that draws lines between selected items in different Flex 4 List controls.
The problem is I can't figure out how to access the x, y coordinates of the list's item renderers.
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 ?
View 1 RepliesHow 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:
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I have an mx:tree with with TreeItemRenderer as below.
Parent1 (Delete | Rename)
Child1
Child2
Parent2 (Delete | Rename)
Child3
Child4
Delete and Rename are link buttons
Now when i click Rename a popUp should be shown like
OldName : Parent1(Text Input showning present Name)
Enter New Name: Parent1NewName(Text Input for entering New name)
OK | CANCEL Buttons
Afetr Entering the new name,click OK,popup should be closed and need to get the value in the treeItemRenderer.
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.
Is it a bad idea to inject data into an itemrenderer. The reason I ask this is because the state of each item is dependent on different changing data sources. So the original data is used to just display a new item, but there could be two to three other data collections that would be needed to determine the item's behavior. Is there a better way to do this? Should I be creating a custom DataGroup with the other data sources as properties on this custom container and then reference the data sources from the itemrenderer to the parent?
View 1 RepliesIm trying to create a loop of items like this...
for each (var btn:Object in ViewButtonData)
{
// build element[cocde]..........
I would like to pass in current HBox to the 'HoverTab' function. Is there a way to do that?
How to style parts of the tooltip e.g. bold? I'm generating a tooltip in an itemrenderer for an datagrid, displaying the column name and then the value: I want to display the value bold...
public override function set data(value:Object):void
{
var dg:DataGrid = this.listData.owner as DataGrid;[code].....
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">
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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]......
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.
View 1 RepliesWithin 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.
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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?
View 3 RepliesI 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].............
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.
View 1 Replies