I have this project for school where i have to populate a drop down list control from an xml file.I mange to do that for a label/text input control, but i can't seem to do that on a drop down.I get this error any time i tell him to "additem" with an xml query (not getting it with simple text):"#1009 Cannot access a property or method of a null object reference"[code]...
View 1 RepliesI am trying to implement a drag and drop function between a list control and a columnchart in Flex3. List items should, when dragged and dropped on the chart, be displayed raphically in the columnchart.Alas, dropping the listitems on the chart does not seem to result in a proper graph.Here my code till so far with regard to the drop part:
private function doDragDrop(event:DragEvent):void{
var ds:DragSource = event.dragSource;
var dropTarget:ChartBase=ChartBase(event.currentTarget);
[code]....
I'm dragging from a TileList to a custom component. I want to know what is being dragged before I accept it. How do I set the "format" that is used for "event.dragSource.formats" in the DragEvent?
Edit for clarification: When you set "dragEnabled=true" on the TileList, it takes care of the drag source stuff, but it uses "items" as the format for the DragEvent. I'm looking for a way to have the TileList use the correct format.
Flex 3 List control had a itemRollOver event. Flex 4 List doesn't have it. Is there an equivalent or a workaround for this issue?
View 2 RepliesI am trying to manipulate (move up and down, enable/disable and launch a form) child controls inside a panel control. However I am unable to get the id of the child control on which the click event occurs. To illustrate, I am trying to create similar functionality as is available. I am trying to create the up-down buttons that you see in the image at http:[url].......
View 2 RepliesI have a drop down list for selecting the titles for a person, I want to employ smooth drop down when i select the drop down menu.
View 1 RepliesIs there any dropdownlist for flex mobile , which can be used for free in commercial app and not paid one
View 1 RepliesI have a Spark List with a TileLayout. I want to enable moving itemRenderers around to be able to order items.
View 1 RepliesHow would I get a drop downlist to populate with check boxes. I am porting a c# project to flex, and I would like to imitate the functionality of their checkbox drop list.
View 2 RepliesI have a List with an item renderer and would like to enable drag-and-drop onto the items in the list, rather than adding the data to the list. Is it possible to find the item that is being hovered over when dragging?
View 1 RepliesI have set up some lists (<mx:List>) in Flex... I have drag and drop working fine, in that I can move elements easily from list to list. For some reason though, my DragInitiator and the currentTarget of my event are the same... even though I am obviously moving from list to list... Does anyone have an example of a function that I can call on my "dragComplete" event that will tell me the current target which will give me the id of the List object I am dropping on?This is my current function which is always returning true...
Code:
private function _dropped(e:DragEvent):void
{
[code].....
I'm trying to run a sqlite query in flex to count the total number of records I believe its working fine but I just can't figure out how to display the results - all I get back is [object Object].
private function overviewOne():void{
var stmt:SQLStatement = new SQLStatement();
stmt.sqlConnection = sqlConn;
stmt.text = "SELECT COUNT(user_id) FROM tbl_user WHERE status_status ='Away'";
[code]....
So how do I make a reference to the COUNT(user_id)?
(flash.data::SQLResult)#0
complete = true
data = (Array)#1
[code]....
When a combobox is elected in the flex app, there is a quick flicker, then the combobox needs to be selected again in order to get the dropdown to open. After that, the dropdown works as expected, but only while selecting the control subsequent times while on the form. Reloading the form requires the double selection again.
View 1 RepliesI just started using Flash Builder 4 (yesterday infact).
I have two lists and a canvas. When dropping a list item onto the canvas, i want to trace what item it is (the label and data) and which list it came from. From there, i want to add an image to the canvas according to the dropped item.
Here's my current code
private function componentDragEnterHandler(event:DragEvent):void {
DragManager.acceptDragDrop(Canvas(event.currentTarget));
DragManager.showFeedback( DragManager.COPY );
}
[Code].....
I'm using drag and drop on a DataGrid to reorder items. However, when the user holds down Ctrl he can initiate a drag Copy operation. How can I disable copying altogether? (not just cancel the drop, but also prevent Ctrl + drag from showing the (+) icon)
View 2 Replies[Code]...
1. If i select one and drop it to the next list, then i select two and drop. the value one must be replaced by two.
2. When i click on submit i need to get what value i have in the list.
3. I need to check whether its right or wrong.
I am having this very weird behavior with a mx:List control not scrolling properly.Here is a snippet:
<mx:List itemRenderer="customerRender" x="19" y="257" height="68" width="290" id="orderStatusHistoryList" color="#CCCCCC" rowHeight="35" ></mx:List>
The custom render creates a vBox that is 35 pixels high with some labels in it.Now, my dataProvider, set in the script block,is returning 3 items for the list (say item1, item2 and item3). Because of the height of the list control, only 2 are shown initially.Now for the weird part, when I scroll down the list to see the next item it is all messed up.
Initial display:
Item 1
Item 2
Display after clicking the scroll down button:
Item 2 (expected)
Item 1 (What the ?, this should be item 3)
Display after click the scroll down button one more time:
Item 1 (all wrong)
Now, if I increase the height of the list control,so it has enough room to display all three items, it displays fine.Also,I put a trace statement is the item render and flex is rendering all three items with the correct data.
I have a list in flex mobile project which contains multiple rows. I want to set color of specific rows based on some logic.
View 1 RepliesI'm building a mobile app, using spark list control. When user tap on a list item, i want it to navigate to that correspondence page
<s:List id="list" width="100%" height="100%" labelField=" label">
<s:dataProvider>
<s:ArrayList>
[Code].....
how do i code it so that when user tap on item label="Page One" it will navigate to PageOneView.mxml and if it tap on "Page Two" it will go to PageTwoView.mxml and so on.
I'm trying to implement drag and drop tabs in TabBar control, but I can't figure out the index of a tab to drop. I tried to use getObjectsUnderPoint() method but I need some implementation how to find a tab to drop.
View 1 RepliesI have a s:List where I've defined my own itemRenderer, and would like to insert a horizontal line separating items, similar to the way the mx:LinkBar works. I don't want to have a line at the top or bottom of the list, so I can't just include an upper or lower border in the itemRenderer. I was hoping the itemRenderer could be made aware of its index in the list, but I don't see how.
View 2 RepliesThe following code display a list of comments using List control. The item height set to a fixed value (150), so it seems working: if the content is too long, the scrollbar shows. However, what I really want is not to set the height but let it to change according to the content size. Is there any way to accomplish this?
<mx:List id="commentList" width="100%" dataProvider="{commentSet.commentArrayColl}" rowCount="{commentSet.commentArrayColl.length}" >
<mx:itemRenderer> <mx:Component>
<mx:VBox width="100%" height="150" >
<mx:Text text="{data.commentContent}" />
<mx:Text text="{data.username} ({data.modified})"/>
</mx:VBox> </mx:Component>
</mx:itemRenderer> </mx:List>
To be more clear, I don't want to set the itemRenderer's VBox height to "150" or any other fixed value - but it'll only show one line of the text if I don't do it. So I'm looking for a way out of this. (If the VBox is not inside the itemRenderer, it'll auto adjust height as Text field string length grows - that's what I want.)
How can I set the scroll position for a Spark List control?
View 1 RepliesI wish to have a standard row with string items except two items,no 1 there is a date field and I need a date selector for it.no 2 in another cell of the row I want to put a drop down list box containing text "40" and "20" or you can manually edit the cell so that it displays what ever input you decide (other than 40 and 20)
View 1 Repliesjust facing a difficulty with tree control drag drop..Suppose i have tree with drag-drop enabled.I want to which node(id) is droped inside which node. 1]if i drag "Cat1" node inside "Cat3",i want to identify ids of siblings of "cat1",and "cat3".2]in general i want to know the ids of current element being moved along withits new parent and new position and save these postions.3] Also "cat4" when moved outside "cat3",i want know its position and its siblings id.
<mx:XML id="treeDP">
<node label="Categories">
<node label="Cat1" id="1" isBranch="true"/>
[code].....
I created a list control at runtime as following:
[Code]....
//Where myDataArray is an ArrayCollection consisting of my Custom ValueObjects. When i execute the code it displays my list with custom item renderer, which is fine. But when bring my mouse over it, it doesn't give any colour highlight which means it is not selecting. Secondly, when i click on any of the list item, it doesn't dispatch any change event. I tried a lot but couldn't understand it.
Is it possible to make an item in a List control not selectable? If so, how would this be accomplished?
I've tried one thing so far. What I did was use a custom item renderer that checks for a value in the data property upon a FlexEvent.DATA_CHANGE event. If that value is not set, I tried setting the item renderer's selectable property to false. This, unfortunately, does not seem to work.
i have a spark List control. it has a dataProvider that shows reply from twitter search.i have created a function for change handler like this:
protected function list_changeHandler(event:IndexChangeEvent):void
{
ta.text = coverflow.selectedItem.title;
}
so, whenever i select each of the items in the List i will see the message(ta.text)but now, instead of me manually clicking the first time, i want it to automatically click/select the first item and see the first message(ta.text)how do i do it?
I have a list control and i want the user to be able to select many items at a time. Thus I want it to act that if the control key is pressed while he is clicking. Eg if he clicks on a selected row it should become unselected and if he clicks on a unselected row it should become selected.
View 1 RepliesI am trying to make a generic list control that has x buttons in it so that users can remove items from the list by clicking the x button. However, this list control needs to support item renderers while still standardizing the layout of items placed next to x buttons.
So I figure the best approach would be to extend the list control and use a renderer that draws the x button and combines that with what ever renderer the user supplies. Unfortunately I cannot figure out how to do that.
I tried overriding newInstance method from the IFactory interface and used that to create an HBox that contains my button and inserts the newInstance result from a user supplied renderer, however it wasn't complete. It displayed as I expected, but the mouse over effect only worked on the user supplied renderer portion and not the entire HBox that my custom renderer made.