I have a list with time related data. the item renderers display this time. I would like to make the item renderers refresh their state/labels upon the tick of a timer.
to which event should I add a listener within the renderer, and how do I trigger such event from the list?
I have used states in my application.The thing is I have made the first item in my list to be selected. so I gave like this,
if(itemIndex == 0)
this.currentState="selected";
this works fine.The problem is when other item is selected the first item does not change its state,it remains in the selected state until its clicked.My code looks like this,
<s:BorderContainer id="outerCont" width="275" height="100" borderVisible="false"
backgroundColor.normal="#3D3C3C" backgroundAlpha.selected="0.1"
backgroundColor.selected="{data.color}">
My states are like this,
<s:states>
<s:State name="normal" />
<s:State name="hovered" />[code]........
How can I use multiple item renderers in mx:Tree depending on item's depth/level in tree?For example. For the first level items I want to use label with button and for second level items combobox
View 2 RepliesI have an item renderer that checks an external source for display information. If that information changes, I want to force all item renderer instances to check it.
What's the best way for force all the item renderers in a list or grid to either commitProperties or execute some other method?
I've read that resetting the grid.itemRenderer property will make them all initialize. I've also received the suggestion to iterate recursively through all the grid's children and call invalidateProperties on all the UIComponents I find.
Can i use creation complete in item renderers, i have a data grid and i have kept every single cell as an item renderer. is it a good practice to use creation complete here. I fear events might fire up at wrong instances.
View 2 RepliesI have a custom item renderer which displays a different gif in the row depending on data value from the data object. When i set the image source url using the absolute path and not embedding it works fine however when i embed the images i find that when i scroll up and down the grid the images get messed up and sometimes sit on top of each other. why embedding images in my hbox item renderer is causing so hassle;
code
public var equipment:Image;
public var compr_icons:Bitmap = new AssetManager.COMPUTER_ICON;
.. do some logic
equipment.addChild(compr_icons);
I've got a client who has a list of items on a Datagrid. When the row is clicked, it sends the user to another page with details of that item. The client wants the rows to act like HTML links, where the color is purple when the link has been previously visited and its normal color if the row hasn't been clicked in the past. I've accomplished this with item renderers and SharedObjects. The application loads the visited ids into an array on start and the item renderer colors the individual cells if that row had been visited.
The issue here is that the client also wants the text color in the rows to turn white when the user rolls over the row. Because the item renderer sets the color, it doesn't respond to the default stylesheet for the datagrid. I can make it turn white on rollover of an individual cell, but we need the whole row to do it. Is there a way to trigger a function in all the item renderers in the row, or is there a better way to accomplish this?
I have data ItemRenderers with DataGroup, but I have many items, and it seems to me that DataGroup create all of them not only those few displayed on users screen, which takes time and resources.
View 1 RepliesI'm trying to have multiple item renderers in a list, as I have several different types of objects that I want to display. I tried creating a new class that extends ListBase, and adding override public function createItemRenderer with my code within this function. I then instantiate the new class and give it my array of data as its dataProvider, but createItemRenderer is never called within my new class,
View 2 Replieswhile creating custom item renderers which interfaces we need to implement?
View 2 RepliesI have an item renderer for a list containing an image, label and a checkbox.These are visible depending on the dataProvider property of the list.E.g if an image is a premium image then display the premium label, if an image is a favourite then display a star etc.The problem is i have a massive if statement, and this doesn't seem good practice.
View 1 RepliesI have a List component using multiple item renderers determined by the itemRendererFunction. When I set the data the first time, it works as expected. Then, when I set the data a second time with new data, it doesn't call the itemRendererFunction and tries to reuse the current renderers even though they don't match the data.Once I scroll, the function is called and the correct renderers are used. I tried calling invalidateDisplayList and such prior to setting the data, but that didn't fix the problem.
View 3 RepliesYou can hook into the creation of Flex 4 item renderers easily enough (through itemRenderer, or itemRendererFunction) allowing you to pull renderers from a custom object pool, but how would you put those renderers back into the pool?
I understand that layout virtualization does a form of object pooling, but I'd like a way to hook in to that. For example, when an itemRendererFunction has been assigned to a data group with a virtualized layout, item renderer construction is indeed deferred, but the instances are not re-used - I'd like to be able to intervene there, if possible.
But even in the case of normal virtualized renderers (where the instances are re-cycled) it would still be useful to be able to manage the pool manually. Pools could be shared between data groups, for example, to reduce the initial buffer required to populate each group.
Is there any way to know when Flex discards an item renderer instance? I have a sinking feeling that there is just no reliable way to tell - even though perhaps there should be.
I have a view component called viewBase where I defined a advanced datagrid with few item renderers for datagrid columns. Now I have a requirement where I need to use the same view viewBase component, but not required to use any item renderers.
how to override the itemrenderers which are declared in a view component?
This is a snippet of code in our custom item renderer which is in actionscript:
textCustomItemRendererTempForTab.tabEnabled=true;
textCustomItemRendererTempForTab.focusEnabled=true;
textCustomItemRendererTempForTab.setFocus();
Alert.show( "Without this alert focus goes to next grid " );
keyboardEvent.preventDefault();
keyboardEvent.stopImmediatePropagation();
keyboardEvent.stopPropagation();
Right now tab navigation works (on tab, focus goes to next editable cell) with the alert inserted in the code but I'm not sure why because I believe the alert in the code breaks the flow of event bubbling. However without the alert (which is what we are going for) the focus goes to the next grid in our UI.
You can see the attempts of trying to stop the event from going to other components. I have also tried to call preventDefault() and stopPropagation() on the datagrid when it receives a tab key event.
how to allow proper tab key navigation without an alert?
I have an AdvancedDataGrid. One of the columns in the grid displayed with help of custom render. During the application run, I set another custom render to the same column.When I scroll data in the grid (change values for the custom renders) they display new view correctly.I want that they dispaly new view automatically (when I set them): so I think I have to call them and tell tham to refresh rgeir views.
View 1 RepliesI have the list shown below:
<s:List id="list2" width="100%" height="100%" dataProvider="{ recordingsShown }"
itemRenderer="components.VideoItemRenderer2"
selectedIndex="0" visible="false">
[Code].....
Im really new to as3, and im just trying out some stuff, but i cant get a shape to refresh and change when i change its variable using a text field.If i change the text fields text before i test it, it works, but while its running it doesnt change it again.Btw, trying to change the stroke size.[code]i just want is so that when i change the strokeSize_txt text box, it will change the stroke for the shape.
View 2 RepliesHow would i know the item state, whether its open or closed through programming in flex.
I am using Accordian...
Here is the code on my buttons, which work fine.[code]....
How do I setup these buttons so that when button1 is clicked, and the button1 page is loaded, that the button stays in 'Over' state?
And just to elaborate, when button2 is clicked and loaded, I want button2 to be in 'Over' state while button1 goes back to normal.
So basically, how do I highlight the active menu item with my 'Over' state?
We have a requirement to show a list of appointment slots. So every hour of a schedule has a set of 10 min slots. The requirement is that if we click on a arrow button at the 8:00, 9:00 hour slot, the layout of the hour slots should change from a vertical list to a horizontal list.For this we modeled the system as follows:ScheduleComponent ->(contains) -> List (Hours of schedule)The HourViewComponent is an Item Renderer, that displays the 10 mins slots based on the available appointments by using a Slots List (list of slots in the 8:00 hour). For the Slots List we have a Slot View Component as an Item Renderer.Now the issue is that when we click on the 8:00 slot we are able to change the HourViewSlot from a VerticalState to a Horizontal state. But The container height is not collapsing in the minimized state. It occupies the same size as the vertical layout! We tried using variableRowHeight attribute.
View 1 RepliesIf I have several items that move across the screen but the user can click any of them at any time, how do I record the current position of any of the items item in order to use that data to change the position of the item after the user clicks?
This is what I am doing: I have 11 images that slide accross the screen. The user can click any of them at any time. When he clicks one I am scaling the image so it looks like it is comming forward (z axis) and then the rest of the images are scaled down so it looks like they are going back on z axis. So what I am trying to do is get the current position of the image when the user clicks the image so that I can use that to correctly estimate the scaling and moving of the image to make it look like it scales from the center and not from the top left corner. So if have a variable that gets the current position of the image being clicked I'm thinking I can change its position using something like: x = currentposition + -45;
I've got a whole bunch of data being displayed in different Labels, now I'm adding an edit state. I'd like all the labels to "transform" into TextInputs. I was just wondering if it possible to uses states to change
View 1 Repliesi am having trouble with xml. i am trying to work it so that if the variable that comes from the xml file changes to a certain number it will automatically change the movie clip i have on the movie. I have also attached the fla and xml file
View 1 RepliesI 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.
View 4 RepliesI have a button with a click event of "currentState='someState'". Is there a way to tell component to do some function like for example "Function()" when the state changes to "someState"? So execute a function when the state is changed.
View 1 RepliesIm attaching cards to stage in random positions using arrays. I'm having some coding issues randomizing so when I refresh the swf the cards numbers should change randomly but are not. This is my code:
var cardList:Array = new Array();
for (i=0; i<16; i++) {
cardList[i] = "card"+i;
}[code].....
I would like to change the state of a flex button component with actionscript (on the fly) to present it as mouse-down/mouse-over/mouse-up, in order to use the css skining with out the existence of the mouse cursor. I tried to do this with button.currentState but this doesn't work.
View 1 RepliesI'm just wonder if its possible to change States via a function in flex?
View 1 RepliesFollowing is a simplified version of my mxml:
[Code]...
"A term is undefined and has no properties..." which points me to the line this.parent.currentState='edit'.