Flex :: Programmatically Enter Edit Mode In Tree Control Inside Application
Jan 17, 2010
I have a Tree Control inside my Flex Application which I want to edit on a doubleclick on a tree item. I found the properties doubleClickEnabled= "true", doubleClick="startEditMode()", and editable="true". With these functions I can detect a double click and I can change the editable property to true based on a double click. The problem is that after I double clicked on a Item i have to click once more to really enter the edit mode. That doesn't seem to be intuitive at all..
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Apr 9, 2012
I am in the middle of creating a website using Flash CS5. I opened up my .Fla file one day to continue my work but I am no unable to access buttons and movie clips. When creating movie clips or buttons I am unable to get inside them, when I hover my mouse over them there is a white hand icon which never used to be there it was always just a normal mouse icon. I double click to enter inside the buttons/movie clips but nothing happens. This happens to existing movie clips and buttons on the page and even when I create new ones. I really don't wanna have to start this website again.
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Feb 17, 2011
I would like to know the correct way to close an AIR application programmatically. In my Spark WindowedApplication I have:this.addEventListener( Event.CLOSING, shutdownApp );and of course an implementation of the shutdownApp method (which basically tidies up temporary files).his works fine for the top-right close button of the window. However I also have functionality which needs to shutdown the application. Within the code I have called:NativeApplication.nativeApplication.exit();However this doesn't trigger the Event.CLOSING method, and so my temporary files are not cleared up. Should I not be calling nativeApplication.exit ? If so, what should I call instead? I'd rather not have to call my shutdownApp method before the NativeApplication.exit() as this doesn't feel quite so elegant.
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Aug 22, 2009
on advancedDataGridControl in flex3 , how to do the following:
1. Add Columns at runtime ( programmatically )
2. Specify the column grouping ( programmatically )
3. set method to be used to show summary row ( programmatically)
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Oct 29, 2009
I've reviewed all the documentation and Google results surrounding this and I think I have everything setup correctly. My problem is that the symbol is not appearing in my app. I have a MovieClip symbol that I've embedded to my Flex Component. I need to create a new Image control for each item from my dataProvider and assign this embedded symbol as the Image's source. I thought it was simple but apparently not.
Here's a stub of the code:
[Embed(source="../assets/assetLib.swf", symbol="StarMC")]
private var StarClass:Class;
protected function rebuildChildren():void {
iterator.seek( CursorBookmark.FIRST );
while ( !iterator.afterLast ) {
child = new Image();
var asset:MovieClipAsset = new StarClass() as MovieClipAsset;
(child as Image).source = asset;
}}
I know the child is being created because I can draw a shape and and that appears.
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Aug 20, 2010
I am currently developing a dynamic LineChart in FLEX 4.I am implementing a Tree control next to my LineChart, which will filter the LineChart dataprovider and lineseries. The tree control has several branches and ultimately 5 children (leaf nodes) at the bottom of the last branch.I need the leaf node/children to be displayed as checkboxes inside the tree control.As I understand,this will require overrides in the TreeItemRenderer class.This is where I am a little confused on how to implement that.Currently I can distinguish between leaf and branches using this code, in my main MXML component.I added this because it may be helpful to some beginning FLEXdevelopers, such as myself, who cannot easily find this functionality documented well:
private function treeClick(e:ListEvent):void {
_selectedItem = Tree(e.currentTarget).selectedItem;
if(mainTree.dataDescriptor.isBranch(_selectedItem)) {[code].....
I am looking at the TreeItemRenderer override class from the following example here: In the example, they override the "createChildden" super function to add checkboxes to the tree control.My question is, can I override the createChildren function directly in my MXML component, and not have to use an entire class file to override this functionality? Must I re-invent the wheel to do this?Also, how can I distinguish that my treeItem is a leaf node and not a parent, in the override function? I only want to add checkboxes to the leaf nodes, how can I differentiate? The following example adds checkboxes to all branches and leaf nodes, but I want to add checkboxes only to leaf node/children. How would you approach that?
override protected function createChildren( ): void
{
super.createChildren( );[code]............
Here is my tree tag:
<mx:Tree id="mainTree" dataProvider="{treeData}" itemRenderer="TreeCheckBoxItemRenderer" labelField="@label" showRoot="false" width="100%" height="100%" itemClick="treeClick(event)" />
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Apr 9, 2012
Im trying to populate a tree control with an external xml file brought in via arraycollection but i need to group the xml data to display in the tree Okay my external xml file is called parts.xml and it looks like this:
[Code]...
additionally what i intend is for the user to have huge tree of parts and they select a node at the partnumber level and drag an drop it on to a datagrid where all the other tags of the part gets displayed.
Ive tried and tried many things without any luck. even now im thinking maybe if i looped through the array-collection and created a new array just for the tree to get it to display the way i need it, then when the user dragged and drop a part onto the grid i would have code that would look for that part number in the original arraycollection and add it to a new array just for the datagrid... i still dont know how i would create that new array for the tree!! cause the xml data is grouped by partgroup and then grouped again by parttype before you get the individual part numbers
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Jan 20, 2010
I'm doing a drag and drop operation on a tree using some help from Adobe's quick Starts:[URL]
The code suggested is roughly this:
var dropTarget:Tree = Tree(evt.currentTarget);
var i:int = dropTarget.calculateDropIndex(evt);
myTree.selectedIndex = i;
[Code].....
EDIT: I forgot to post that my current workaround is setting the selectedIndex = -1 after I get my node:XML. I'm afraid that if something bogs on the processor the user may see it select then deselect.
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Mar 9, 2010
I have a tree control and I want to give the user the ability that he can move up and down the element he just selected with a up and a downbutton. The tree gets generated from XML. I managed to insert the selected item a second time at a other place, with the following code:
var parentXML:XML = XML(containerTree.selectedItem).parent();
var upperItem:XML = topContainer.source[containerTree.selectedIndex-1];
parentXML.insertChildBefore(upperItem,XML(containerTree.selectedItem));
but then I have the item there twice in the List. How can I remove to reinsert it?
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Jan 27, 2010
I have a Tree Control on which I let user add some nodes. When a node gets added I want to let the user edit the added control right away. How do I get the itemEditorInstance of a just added xml node?
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Jul 14, 2010
Does anyone know of a way to specify different vertical gaps between siblings in a Tree? I want to child nodes spaced tighter together (maybe 10px) while the top level parents remain spaced further apart (20px). Essentially, I need to change the gap dynamically based upon the depth of the node, but I'm not sure if the Tree class (or the List class, which Tree extends) offers this type of functionality.
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Aug 8, 2010
I am having some trouble with the flex Tree control.I have a control in my system and of course it is data driven.I have a group which shows a folder icon and that's fine but it also shows an expand icon when the item has no children.I don't what it to show the expand icon when the group has no children but I do want to show the folder icon, because it is different entities in my system.
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Sep 24, 2010
I've created an mxml page that displays a tree control, however the data is only being displayed as branches. Even items that are leaves are being displayed as branches.
<mx:Script>
<![CDATA[
import mx.collections.ArrayCollection;
public function init():void {
var item:Object;
var array:Array = new Array();
[Code] .....
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Mar 21, 2010
I have a flex application and have embedded a flash (SWF) file into it using <mx:SWFLoader>. There is an "Exit" button on the Flash file. I want to be able to handle the button click event on the flex application.
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Apr 15, 2010
I have an Image control in my Flex application:
<mx:Image id="img" source="@Embed('img.png')"
percentHeight="100" percentWidth="100" />
Because the image is scaled, there are a lot of scaling artifacts. Can I change the image to use a different type of filtering?
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Oct 12, 2010
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Dec 20, 2011
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Nov 4, 2009
I'm using a tree control that I want to customize. The data items in the tree's dataProvider have a property name that should be used for labeling the node, and a property type that should be used to select one of several embedded images for use as an icon. The simplest way to do this is by using the labelField and iconFunction properties.
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class DirectoryItemRenderer extends TreeItemRenderer
{
[Embed("assets/directory/DefaultIcon.png")]
private static var _DEFAULT_ICON:Class;
[Code]....
This code has no effect whatsoever, icon and label in the tree control remain at their defaults. Using trace(), I verified that my code is actually executed.
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Dec 9, 2009
just 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].....
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Mar 4, 2010
I'm trying to modifty the Flex Tree control to allow a user to select multiple items by just clicking each of the desired elements (ie I don't want them to have to press Ctrl or Shift). If the user clicks a selected item a 2nd time, it will deselect it.
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Oct 27, 2011
I'm building an AIR app using Actionscript and I want to programmatically insert a piece of text into a .webarchive file. The problem is that every time I insert the text, the file somehow gets corrupted. The code I'm using looks like this:
[Code]...
I'm guessing the problem has to do with the encoding of the .webarchive file.
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Oct 12, 2009
I 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].......
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Feb 2, 2010
I'm trying to populate a mx:tree component with values that I'm getting from BlazeDS. The returned data from BlazeDS is fine it's an ArrayCollection of Folder value objects.I've been instructed to use Cairngorm for this project. I'm pretty new to Flex and Cairngorm. According to the limited documentation that I've read online I should populate the model with data so I've stuck the array collection there.What I'm stuck with is trying to update the tree component. I feel that I need some way to notify the container component for the tree that the data (i.e. the subfolders) is available on the model. I was hoping that it would be possible to fire a function in the container component to add the subfolders as children of the selected node (I could chuck this on the model before the remote object call I guess) then fire tree.invalidateList() and tree.validateNow(). Any ideas?
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Apr 17, 2011
I want to store a filesystem tree into MongoDB within a Ruby application, so we are talking about json/bson representation of something like:
/
/foo
/foo/one
/foo/bar/two
/foo/bar/three
/four
my aim is to store it efficiently and to serve it via json to an Adobe Flex application which will display it in a Tree component. which is the best solution in your opinion? this document suggests some options. i'd like to go for something like the first pattern (keeping in mind the limit of 16Mb document size) with this format:
[Code]....
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Aug 29, 2011
I have a native (Obj-C, standard Xcode project) application and I'd like to integrate a partners iOS application (or specifically, it's functionality) into it as just another view in my application. The problem is that their application is a Flex/Air app. I really don't understand the Adobe compilation process on how it gets from a bunch of flex code down to an IPA. I don't see intermediate projects, shared objects, etc on the disk to produce that IPA. It looks like it doesn't rely on the Apple tool chain... as I understand it, you can produce the IPA on Windows as well. Is there any way to build that Flex app in such a way that I can import it into Xcode so I can link against it and use it as a library from within my application? While I specifically used iOS as an example since that is the most important platform, we'll want to apply this solution to our respective Android and Blackberry 6 apps as well.
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Sep 20, 2011
I have a transparent windows (skinnable). Inside, I'd like to preview some pdf file. BUT, in the only a black screen appear
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Jun 5, 2011
I'm trying to get my new character system working with my fairly simple physics system. I have code at the bottom of the page which demonstrates my collision function. The most important line, which I've bolded, is:
Code:
currentPlayer.y = hitBlock.y - ((hitBlock.height * 0.5) + (avatar.height * 0.5)) ;
I wrote this myself, all logic dictates that it should work. We start with the position of the centre of the block. We add half of it's height, to reach the top surface of the block. And then we add half the avatar's height, which should give the exact point to put him at so that his feet touch the top of the block. This code should be able to account for any arbitrary heights of block or avatar. But it's not working, my avatar is stuck just a little bit inside the block.As far as I'm aware, my math is perfect. So the only source of the problem I can think of is in the objects themselves. I'm not fully sure what the registration point is - logic would dictate that it's the recognised root point of the object, and when I tell an object to go to a coordinate, I would guess it's moved so that point rests exactly on the coords.I'm not entirely sure how to change it though.When I look at my movieclip in edit mode, it look like this.
The image has been downscaled so it's tricky to see the details, but I want to draw attention to the fact that there's three points of interest on it. Around the middle of the bounding box is a white circle,I think that's the registration point. A bit above that, on the figure's upper torso, is a crosshair. And to the topleft of the bounding box, just outside of it, is a second crosshair.What's also interesting is that when I deselect the movieclip, the white circle and the second crosshair (outside the BB) vanish. But the one on his chest stays put.If I move the movieclip, all three of the above things go with it. I can select the circle and drag it around, but not the crosshairs.my collision code:
Code:
//if main hits a block, then stop jumping
//this loop will check a hit test with any block
for(var i:int = 0;i < world.blockHolder.numChildren; i++)[code]............
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Nov 19, 2011
I'm trying to make a Flex Tree Component display the children of a sprite in a hierarchical way. Moreover, dragging the items on the FlexTree would resort and reparent the items. I have special Elements set as Folders. This would allow other elements to be added there as a children by dragging an element on the tree and dropping it there. I have a failed attempt which works, but breaks when I try to add folders. Basically, it fails at reparenting the items by dragging and resorting folders and that Does anyone know of a component or something which can do this, has anyone have created any of this or could anyone give me a clue?
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Aug 31, 2010
I am having the text, which i am able to enter text into it when I go to full screen Not able to enter
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Apr 3, 2009
I have a keyboard.enter working in my flash movie, meaning when i hit the ENTER key my listener function is fired. But when i switch to fullscreen mode the Keyboar.enter event is not captured by my listener anymore.
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