Flex :: Select Tree Node Right After The DataProvider Is Been Assigned / Updated / Replace?
Jan 26, 2011
i have a Flex tree control and im trying to select a tree node 3 levels down right after the dataProvider is assigned with a collection object like the following.basically treeItem1, treeItem2, treeItem3 are the nodes in the tree and treeitem3 is a child of treeItem2 which is a child of treeItem1. Assume these treeItem(1,2,3) are referenced correctly from the collection items.
my problem is that if i wait for the whole component to load completely then select the nodes, it open/select/scrolltoIndex correctly. However, if i were to select the node right after the dataProvider is assigned, then it doesn't even open or select (basically the this.treeService.selectedItem is always null).
this.treeService.dataProvider = oPricingHelper.getCurrentPricingSercicesTreeSource();
this.treeService.expandItem(treeItem1, true);
this.treeService.expandItem(treeItem2, true);
this.treeService.selectedItem = treeItem3;
this.treeService.scrollToIndex(this.treeService.selectedIndex);
View 2 Replies
Similar Posts:
Jan 18, 2011
I have a tree im my mxml that uses a XMLListCollection as dataProvider. Itīs XML is like:
<list>
<conta nome="Plano de Contas" id="1">
<conta nome="Creditos" id="2" />
<conta nome="Vendas" id="4" />
[code]....
How can I make the node for, say, id==4 visible AND selected?
View 2 Replies
Jan 2, 2011
I have a Spark List container whose dataProvider is bound to a result set coming back from a RemoteObject call. Pretty standard stuff.
<s:List id="list" dataProvider="{model.stuff}" width="100%" height="100%"
selectedIndex="@{selectedSlider.value}"
itemRenderer="{stuffRenderer}">
</s:List>
The selectedIndex is associated with an HSlider, but that is not the problem. My issue is that I would like to automatically select a certain "preferred" element from the list (only initially...to guide the user).
I tried to do that in a creationComplete event but my data hadn't shown up yet...setting selectedIndex didn't work..
View 3 Replies
Feb 23, 2010
I've got a couple trees that I allow a user to drag and drop from one to another, works great except one apparent limitation. I'm picking up where they drop it in the list and adding it to the dataProvider manually. The user can drop it everywhere except after the last child of any particular node it seems, since it reads that position as being between the node and it's next sibling.
It seems the best way to deal with this is to add something like a dummy leaf so the user has something to drop the item in front of. I don't want this leaf in the dataProvider, so is it possible to add a leaf (or a folder) to the tree without adding it to the dataProvider?
View 2 Replies
Oct 26, 2010
I'm using a flex combobox component in Flex builder 3 with sdk 3.4 and I'm trying to use it to expand and select the tree node that the user selected in the combobox component on the change event. However, I'm getting an error when I go to assign the combobox seletedItem to the tree selectedItem. Can you please help? What am I doing wrong?
[Code]...
View 1 Replies
Aug 1, 2011
If i want check parent node checkbox means below childerns checkbox will select automatic .[code]...
View 2 Replies
Jan 14, 2010
I have an AdvancedDataGrid tree with a ArrayCollection as its dataprovider. Now, for instance, i drag a leaf from one node to another node. To catch the event I'm adding a Listener to dragComplete.
[Code]...
My Problem: I want to know the new node where the leaf was dropped. Actually i would have expected that in the event there is a property like dropParent. This is not the case.
View 1 Replies
Feb 22, 2010
i am working on an aplication using flex,adobe air...i have a datagrid with a XML as my dataprovider...during the execution of program my XML is updated....after XMl is updated and saved my datagrid should also get update..I have used Dataprovidername.refresh() method but it is not working.
View 4 Replies
Sep 18, 2009
public function fileBrowse():void {
var success:Boolean = fileRef.browse();
}
[code].....
View 2 Replies
Feb 11, 2010
I'm trying to set a combobox's dataprovider.I have 2 comboboxes: cb_div and cb_stores.For cb_div, I get to set the data provider correctly with an XML file.Cb_stores' dataprovider is to be set depending on the selected item of cb_div.First, here are my XML files.Data provider for cb_div:
<?xml version="1.0" encoding="UTF-8"?>
<divisions>
<division id="Japan">Japan</division>
[code].....
View 1 Replies
Feb 16, 2010
I have a Datagrid thats being populated by different Arrays... (headers/columns change for the same DataGrid)... I would like to Select a Column of the Datagrid after it was generated by the Dataprovider and Bold it, and place it as the 'last column"
This is what I have.... and throwing an error:
private function populateGrid(evt:Object):void {
dg.dataProvider = evt as Array;
if (dg.columns.length > 0) {
for (var i:int = 0; i < dg.columns.length; i++) {
if (dg.columns[i].dataField == '_user_total') {
DataGridColumn((dg.columns[i].dataField)).setStyle('fontWeight', 'bold');
}}}}
This way I would like to have One Datagrid (for different Arrays) )without having the Columns fixed and declared (like in MXML), but dynamic, and would like a 'specific' column to be Bolded, and placed as the last column, in this example, the column with dataField _user_total.
View 1 Replies
Sep 10, 2009
[Bindable]
private var company:XML =
<list>
[Code]....
The Particular code adds a new node to the operations, but i want to add a node any item i select.
View 2 Replies
Sep 6, 2010
i have a tree of nodes that i dont want some type of nodes to appear in the tree, i can check the data on tree item renderer for each specific node type, so i have one type that i dont want it to be shown as tree node, like it doesn't exist.
if(this.data.type == TypeEnum.id){
this.visible=false;
this.height = 0;
}
else {
View 1 Replies
May 22, 2009
I have a Tree object in my Flex code. It's width is 100%, and it is contained by a Panel with width=200. I am using a custom itemrenderer that extends TreeItemRenderer.I need the text in each node to word wrap if it's too big (as happens often). I have triedlabel.wordWrap = true;
View 5 Replies
Nov 17, 2010
I want to add an indicator on a tree node icon , meaning , for example like in eclipse when there is an error the icon get a special small indicator on the regular icon. how can i do that?
View 1 Replies
Feb 11, 2011
I have a tree with nodes , and a delete button , first user select the node and click this delete button , I want this node to be removed from the tree , Its not XML , every node in tree is of type Object
{label:'folder',children:[{label:'file1'}]}
I tried delete myTree.selectedItem (but compiler wont let me do it) also tried myTree.selectedItem = null (just unselects the item)and also how can I access reference to parent object of myTree.selectedItem ?
View 3 Replies
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)" />
View 1 Replies
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?
View 1 Replies
Feb 16, 2011
I have inherited a Flex air project and have not worked with trees before. The tree is displaying an xml file hierarchically. The user can make a change to the data. I need to save the data of the entire tree to a file.I can save the currently selected item to a file, no problem. But I need to save all the data from the root of the tree, forward.I would think I could make a copy of the tree, and set the selected item of my new tree to root, or something. Sort of like this pseudo code:
var treeToSave:Tree = new Tree (editedTree);
treeToSave.selectedIndex = 0;
// now save treeToSave to file...
This creates a compile error, but hopefully you can see what I'm trying to do.
View 1 Replies
Apr 18, 2011
I need to have link buttons at end of each parent node as shown below:
-->(Parent)IBM Machines (rename | delete | disable)
Child 1 Child 2 Child 3
-->(Parent)Sony ( rename | delete | disable)
Child 1 Child 2 Child 3
Rename ,delete and disable are supposed to be link buttons. I have tried with label function and other methods also but not able get the exact requirement.
View 2 Replies
Jun 24, 2009
I have a partially populated Tree component and I have to invoke a remote service when User expand (not when he select) a node to retrieve it's leafs. How I know witch node have bee selected.
I'm using Flex 3.3.
View 1 Replies
Dec 27, 2010
The tree should have a minimum row count of 4 and a maximum of 10 (beyond which it should display the scroll bars). So, I have a tree with rowCount="4" and I want rowCount to change up to "10" depending on the currently expanded nodes. In debug I can see two of the tree's properties which I could use[code]...
But these are not accessible from outside so I can't find a way to understand if the tree is expanded or not.
View 1 Replies
May 26, 2011
I want to have a tree node renderer which act as follow :Clicking on it change the node height.I have tried as follow : to create a custom class derived from UIComponentand then insert it inside the tree node renderer, but because of some reason it doesn't work as I expected.Here's the code :
package
{
import flash.display.Sprite;
[code].....
View 1 Replies
May 20, 2010
I have a Flex tree with an ArrayCollection as data provider. The ArrayCollection is composed by objects linked eachother by the "children" field (that is an Array containing other children objects)
[Code]...
View 1 Replies
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.
View 2 Replies
May 28, 2011
I am looking for the function or event, which is called when tree node is expanded/colapsed inside Tree object in Flex 4.5.
View 1 Replies
Sep 22, 2010
I'm working on a tree component using a XMLLIST as a data provider.
<list>
<menuItem label="Home" menuItemId="1" >
<menuItem label="Info 1" menuItemId ="4"></menuItem>
[Code]....
I need to select a nested node by the property 'menuItemId' without knowing the index.For example, select the item with the menuItemId 4.
View 2 Replies
Dec 19, 2009
i have an xml like this one, How can i change the values of the nodes <adposx> and <adposy> of the node array "YAYA" .I did that :
this.Pages.page.adverts[1].adposx= newvalue;
this.Pages.page.adverts[1].adposY= newvalue;
but it dont work
[Code].....
View 2 Replies
Oct 11, 2005
I want to basically copy an xml object I have created, take the children from a specified node and make a new xml object from them and put this new xml into the tree component. Can you see what is wrong with this?
[Code]...
View 8 Replies
Oct 6, 2010
I know I can use the XMLdocument class and go back tothe old way of doing thinsg. So I have an AS3 Air app which is successfully reading and writing to an XML file. Now I want to replace an attribute or an entire node if that's easier but I can't figure out how to target it. So the XML starts with an empty node:
[code]....
What I want to know is how to target the status node (or any other node for that matter) so that I can replace it or it's attribute. So, let's say I have a bunch of these guest nodes and I want to change the status for the first one, how do I do that using the new syntax.
View 3 Replies
