How to call javascript method action listener.

Similar Questions

• How to call a method defined in AM when I select a value in LOV

  Lets say there is a LOV. The scenario is as soon as I select a value in LOV, a method should be called I wrote in the AM. And the output of the method in an output text area.
  
  I am not able to understand how to call a method when the user selects a value from the LOV.
  
  
  This is wht I did. I had created the connection for the method. One replaced the property autosubmit to the LOV for real and in the properties of the output area, in partial submission trigger property, the ID of the LOV. But I don't have any place where I need to call the method. I'm also not able to remove a listener for action on the LOV
  

• question on "How to call a method once when starting the application"

  Hello everyone.
  
  I'm trying to implement that article "How to call a method once when you start the application" by Frank suggests.
  https://blogs.Oracle.com/jdevotnharvest/entry/how_to_invoke_a_method
  
  
  Suppose I want to have a single entry point, so in my login.jpsx I have the below:

  <f:view beforePhase="#{login.onBeforePhase}">

  In the 'onBeforePhase' method, I have to pass the phaseEvent, since the signature is as follows:

  public void onBeforePhase(PhaseEvent phaseEvent)

  But how do I know the phaseEvent during the call to the login.onBeforePhase? How the call should be?
  
  Thank you very much!
  
  
  PS. I use jDev 11.1.2.1.0

  You must not pass something to this method, this method is called before each Phase except view restoration
  Just write logic as Frank suggested to the phase in which you want the code to run. You can get the PhaseId analogues

  PhaseId.RENDER_RESPONSE

  public void onBeforePhase(PhaseEvent phaseEvent) {// from Frank's doc
   //render response is called on an initial page request
    if(phaseEvent.getPhaseId() == PhaseId.RENDER_RESPONSE){
  ... etc
  

• How to call a method defined in AppmoduleImpl using a groovy expression?

  Hi experts,
  
  With the help of jdev 11.1.1.5.0 - adfbc battery.
  
  I followed this post as the blogger says.
  How to call a method defined in AppmoduleImpl using a groovy expression?
  https://blogs.Oracle.com/ADF/entry/how_to_call_a_method
  
  While a button insert hit
  
  Suite error survey.
  

  java.sql.SQLException: ORA-20483: ADM-
  ORA-06512: at "RMSTD.FUNC_FIND_PLNT_DESC", line 22
  ORA-06512: at line 1
  
       at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:457)
       at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:405)
       at oracle.jdbc.driver.T4C8Oall.processError(T4C8Oall.java:889)
       at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:476)
       at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:204)
       at oracle.jdbc.driver.T4C8Oall.doOALL(T4C8Oall.java:540)

  It is my code for the function.

  CREATE OR REPLACE FUNCTION func_find_plnt_desc (
     p_bu        VARCHAR2,
     p_plnt_id   VARCHAR2,
     p_lang      NUMBER
  )
     RETURN VARCHAR2
  IS
     CURSOR cur_find_plant
     IS
        SELECT bup_name1, bup_name2
          FROM bus_unit_plants
         WHERE bup_bu = p_bu AND bup_plant_id = p_plnt_id;
  
     rec_find_plant   cur_find_plant%ROWTYPE;
  BEGIN
     OPEN cur_find_plant;
     FETCH cur_find_plant INTO rec_find_plant;
  --RAISE_APPLICATION_ERROR(-20999,P_BU||P_PLNT_ID);
     IF cur_find_plant%NOTFOUND
     THEN
  
        raise_application_error (-20483, 'ADM' || P_PLNT_ID ||'-'||P_BU);
        --NULL;
     END IF;
  
     CLOSE cur_find_plant;
  
     IF p_lang = 1 THEN
        RETURN (rec_find_plant.bup_name1);
     ELSIF p_lang = 2 THEN
        RETURN (rec_find_plant.bup_name2);
     END IF;
  END;
  /

  Reason behind:
  while hitting the insert means null from the value of the survey so error function.
  
  If am not hitting doesn't mean no problem. the function works correctly return description.
  
  can someone help me how to override?
  
  Published by: ADF7 on April 10, 2012 23:51

  ADF7,
  the subject of the post has nothing to do with the question (for as far as I see it).
  As you can see the error message clearly comes from the procedure pl/sql you call the application module, works of groovy appeal method.

  We cannot decide what makes your service if you pass null as a parameter. You can check the settings before you proceed to the procedure or write the procedure in how it treats null parameters.

  Timo

• How to call a method of the AM with parameters of Bean managed?

  Hello world
  
  I have a situation where I need to call the Managed bean (setDefaultSubInv) AM, under value changes Listner method. Here's what I do, I added the AM method on page links, and then at the bean call it
  
  Class [] paramTypes = {};
  Object [] params = {};
  invokeEL ("#{bindings.setDefaultSubInv.execute}", paramTypes, params);
  
  It works and be able to call this method, if there are no parameters. Say that I pass a parameter to setDefaultSubInv(String a) method AM, I tried to call it bean but raise an error
  
  The string available = 'test ';
  Class [] paramTypes = {String.class};
  Object [] params = {DISP};
  invokeEL ("#{bindings.setDefaultSubInv.execute}", paramTypes, params);
  
  I'm not sure this is the right way to call the method with parameters. Can anyone tell how to call a method of the AM with bean to manage settings
  
  Thank you
  San.

  Just do the following

  1. your method in the Client Interface.
  2 - Add to Page Def.
  3 - Customize your Script like below one to reach your goal.

  BindingContainer links = getBindings();
  OperationBinding operationBinding = bindings.getOperationBinding("GetUserRoles");
  operationBinding.getParamsMap () .put ("username", "oracle");
  operationBinding.getParamsMap () .put ("role", "F1211");
  operationBinding.getParamsMap () .put ("Connection", "JDBC");
  Object result = operationBinding.execute ();
  If (! operationBinding.getErrors () .isEmpty ()) {}
  Returns a null value.
  }
  Returns a null value.
  }

  I hope it helps you
  Thank you

• How to call a method of the Module of the Application of a class of ViewObjectImpl?

  Howdy,
  
  With the help of Studio Edition Version 11.1.1.3.0.
  
  I have a setup where a user between an element and a price. When the item and the price is committed, I want this event to then influence the price of his parents. My idea is to do a ViewRowImpl class and then call an AppModuleImpl class that is her parents and it affects their attributes.
  
  Question:
  
  (1) how to call a method on the Module of the Application of a class of ViewObjectImpl?

    public void setPrice(Number value)
    {
      setAttributeInternal(PRICE, value);
      
      DCBindingContainer bindings = (DCBindingContainer)BindingContext.getCurrent().getCurrentBindingsEntry();
      BindingContext bctx = bindings.getBindingContext();
      DCDataControl control = bctx.findDataControl("AppModuleDataControl");
      ApplicationModule am = (ApplicationModule ) control.getDataProvider();
      //uh now what??
      // am.getProperty("method call(getTipsNum())") ?
    }

  (2) when I set an attribute on a view through the AppModuleImpl object, I'll make an infinite loop in this way? that is the AppModuleImpl calls the ViewRowImpl class on a setAttribue (< name >, < value >)?
  
  Thank you guys.

  It's an interesting problem, I'll take a stab to solve here.

  First let's see I understand the data model:

  (a) there is a table called BOM with a self referencing FK creating a hierarchy of data
  (b) each record BOM is usually a child to another record BOM, so using your example, a van is composed of frames and tires - Let's say that this amounts to 3 records in the Schedule table.
  (c) check parent, truck, is the root of the hierarchy, and so the FK relationship sucks.
  (d) the price of a truck consists of its children. So if the frame costs $1,000 and tires $500, the pickup truck costs total $1,500.
  (e) a change in the price of any folder BOM, upwards or downwards must be propagated to its parent folder BOM. As an example, if the tires up to $600, the pickup truck is now $1600 ($1000 frame + tires $600).

  Does this sound right?

  Well, that I understand the data model, here's what I'd do build in what concerns objects ADF BC:

  (1) an entity BOM (EO) object - let's call this Bom
  (2) a BOM BOM EO association (representing the self referencing FK)-Let's call it BomBomFkAssoc
  (3) an object to view BOM (VO) based on the EO - let's call it BomView
  (4) BOM VO view link BOM VO based on EO of #2 association - call BomBomFkLink

  Next, we create the Java constructs:

  (5) #1 ensures that the EntityImpl has been created
  (6) #4 guarantees for the EO association that it generates the required Java accessors

  Now the additional code:

  (7) for the EntityImpl # 5, in the field of setter setPrice() something like the following:

  public Number setPrice(Number value) {
    Number diffPrice = value.minus(getPrice()); 
  
    setAttributeInternal(PRICE, value);
  
    BomImpl parentBom = getBom(); // from step #6, the EntityImpl should have an accessor method to it's parent BomImpl record
    Number parentDiffPrice = parentBom.getPrice().add(diffPrice);
    parentBom.setPrice(parentDiffPrice);
  }
  

  From a point of view JSF, now when I change a specific record of the Nomenclature in an edit form, a change for the price of registration for the Bill to submit time will automatically propagated to the top of the hierarchy of the BOM because the method setPrice() of the current OS of BOM will walk to the top of the hierarchy of the BOM to the parent following the call it is setPrice() method , which will be then walk to the next BOM record and so forth. At the time all BOM records with changes should be committed to the database.

  You don't need to test this in JSF, but simply the browser component of company on the Application template project Module.

  .... Of course... If I misunderstood your data model, it will be of no help whatsoever.

  CM.

• How to call javascript in an another QML

  Hello

  I have 2 file QML file qml 1A listview with ArrayDataModel as the source of data, when the user clicks on a line, it nav push another QML to change/remove, the arrayDataModel consist of a given amount of time, which 1 contains a qml file label to display the subtotal of all time values in the data model. I also have a javascript that will do a loop through the ArrayDataModel to update the label of the total time that I call the file onCreationCompleted 1 qml, all works well.

  However, when deleted, the listview will automatically update, now the problem is how can I trigger a refresh on qml file 1 in order to update this label.

  Here's the qml file 1

  import bb.cascades 1.0
  
  NavigationPane {
      id: navigationPane
      backButtonsVisible: false
      Page {
          titleBar: TitleBar {
              title: "Interval Timer"
          }
  
          content: Container {
              id: root
              background: Color.LightGray
  
              // Javascript definition
              function udpateTotalTimeLabel() {
                  var totalHour = 0, totalMinute = 0, totalSecond = 0;
                  var print = function(o) {
                      var str = '';
  
                      for (var p in o) {
                          if (typeof o[p] == 'string') {
                              str += p + ': ' + o[p] + '; 
  ';
                          } else {
                              str += p + ': { 
  ' + print(o[p]) + '}';
                          }
                      }
  
                      return str;
                  }
                  for (var i = 0; i < eventsModel.size(); i ++) {
                      var currentEvent = eventsModel.data([ i ]);
                      totalHour += parseInt(currentEvent["EventHour"]);
                      totalMinute += parseInt(currentEvent["EventMinute"]);
                      totalSecond += parseInt(currentEvent["EventSecond"]);
                  }
  
                  if (totalHour < 10) totalHour = "0"+ totalHour;
                  if (totalMinute < 10) totalMinute = "0" + totalMinute;
                  if (totalSecond < 10) totalSecond = "0" + totalSecond;
  
                  totalTimeLabel.text = totalHour + ":" + totalMinute + ":" + totalSecond;
              }
  ...
             Container { // Container for the total time
                  id: digitsContainer
                  preferredWidth: 780.0
                  background: Color.create(0.2, 0.2, 0.2)
                  bottomPadding: 50.0
                  layout: DockLayout {
                  }
  
                  verticalAlignment: VerticalAlignment.Center
                  horizontalAlignment: HorizontalAlignment.Center
                  topPadding: 50.0
                  topMargin: 0.0
                  Label {
                      id: totalTimeLabel
                      horizontalAlignment: HorizontalAlignment.Center
                      text: "88 : 88"
                      textStyle.fontSizeValue: 0.0
                      textStyle.lineHeight: 1.5
                      textStyle.textAlign: TextAlign.Center
  
                      topMargin: 0.0
                      verticalAlignment: VerticalAlignment.Center
                      // Apply a text style to create large, light gray text
                      textStyle {
                          base: SystemDefaults.TextStyles.BigText
                          color: Color.Green
                      }
                  } // end of total time container
              }
              Container { // Conatiner for the Go button
                  id: goButtonContainer
                  layout: StackLayout {
  .....                    onCreationCompleted: {
              root.udpateTotalTimeLabel();
              console.log("No of EventsModel: " + eventsModel.size());
              console.log("In sheet creationCompleted");
              mainObj.dataReady.connect(root.onDataReady);
          }
  

  Here's the qml file 2

  import bb.cascades 1.0
  import bb.system 1.0
  
  Page {
      titleBar: TitleBar {
          title: "Edit Event Detail"
      }
      property alias txtEventName: eventNameText
      property alias pickEventTime: eventTimePicker
      property int selectedIndex: 0
  
      // Javascript implementation
  
      content: Container {
          id: editEventPage
  
          Container {
              layout: StackLayout {
                  orientation: LayoutOrientation.TopToBottom
              }
              Container {
                  Container {
                      layout: StackLayout {
                          orientation: LayoutOrientation.LeftToRight
                      }
                      leftPadding: 20.0
                      topPadding: 50.0
                      bottomPadding: 50.0
                      Label {
                          text: "Event Name"
                          preferredWidth: 200.0
                      }
                      TextField {
                          id: eventNameText
                          hintText: "Enter Event Name"
                          preferredWidth: 500.0
                      }
                  }
                  Container {
                      layout: StackLayout {
                          orientation: LayoutOrientation.LeftToRight
                      }
                      leftPadding: 20.0
                      Label {
                          text: "Event Time"
                          preferredWidth: 200.0
                      }
                      DateTimePicker {
                          id: eventTimePicker
                          mode: DateTimePickerMode.Timer
                          minuteInterval: 1
                          preferredWidth: 500.0
  
                          onValueChanged: {
                          }
  
                      }
                  }
              }
          }
      }
      // Attached Objects
      attachedObjects: [
          SystemDialog {
              id: dialogConfirmDelete
              title: "Confirm Delete"
              body: "Do you really want to delete this event?"
              onFinished: {
                  if (dialogConfirmDelete.result == SystemUiResult.ConfirmButtonSelection) {
                      console.log("Commiting to delete " + selectedIndex);
                      eventsModel.removeAt(selectedIndex);
                      navigationPane.pop();
                  }
                  else {
                      return;
                  }
              }
          }
      ]
      // Context actions
      actions: [
          ActionItem {
              title: "Save"
              ActionBar.placement:ActionBarPlacement.OnBar
  
              onTriggered: {
  
              }
          },
          ActionItem {
              title: "Delete"
              ActionBar.placement:ActionBarPlacement.OnBar
  
              onTriggered: {
                  dialogConfirmDelete.show();
              }
          },
          ActionItem {
              title: "Cancel"
              ActionBar.placement: ActionBarPlacement.OnBar
  
              onTriggered: {
                  navigationPane.pop();
              }
          }
      ]
  }
  

  Thanks in advance

  NVMD, I solved it.

  QML 2 file-> refresh C++ function signal-> qml file 1 onDataReady call javascript to label fresh

• How to call javascript process?

  Hello!

  I have a button Delete which redirects to url:

  javascript:apex.confirm (htmldb_delete_message,'DELETE_CONFIRM_MSG');
  
  

  And a process that is placed after validation.

  How to call this process, I put the button to zero State and condition the type of request = Expression 1 and tried the two doDelete and confirmDelete in the expression field, but it does not work.

  How can I call the process?

  Hi EgaSega,

  Give you an example, try something like below

  (1) change your page

  Create the javascript function in the HTML header

  (2) of the button calls the javascript function

  action button: "URL redirect".

  Target URL: javascript:f_execProc();

  (3) modify your process

  In Conditions

  When you press the button: no condition button

  Condition type: request = Expression1

  Expression1: REMOVE

  Hope this helps you,

  Kind regards

  Jitendra

• How to call a method when it is clicked on selectBooleanCheckbox?

  Hello experts!

  I use Jdev 12.1.2 and I'm currently calling a method in a Bean managed using an af:button and works great:

  <af:button id="b1"
           icon="/images/icons/highlighted.png"
           actionListener="#{backingBeanScope.pppProjectsBean.toggleHighlighted}"
           text="#{sessionScope.highlighted_only ? 'Show All' : 'Show Highlighted Only'}"
           immediate="true"/>
  

  My requirement is to change the button for a selectBooleanCheckbox, but the attributeChangeListener method is not executed:

  <af:selectBooleanCheckbox text="Show Only Highlighted Projects"
     label=" id="sbc1"
     attributeChangeListener="#{backingBeanScope.pppProjectsBean.toggleHighlighted}"
     immediate="true">
  

  What are the 3 codes methods in the managed bean:

      private void toggleHighlighted() {
          <code tested and working fine>
      }
      //For the action listener of the button
  
      public void toggleHighlighted(ActionEvent actionEvent) {   
          toggleHighlighted();
      }
     //For the attribute change listener of the checkbox    
      public void toggleHighlighted(AttributeChangeEvent attributeChangeEvent) {
          toggleHighlighted();
      }
  

  Thanks in advance,
  Jose.

  Use valuechangeListener.

• How to run a method action by supporting the bean method?

  Hello..
  I´d would like to know how to perform an action of binding of a method of support in jdev 10.1.3 bean
  In the definition of a JSF Page page, I have a MethodAction created in AM
  On the same page, there is a button whose action property calling a method to support bean. What I have to do is to perform the action of the method in the method to support bean...
  is this possible?
  Willian

  http://download.Oracle.com/docs/HTML/B25947_01/web_adv005.htm#CACDJCFE

  Shows you how to generate the code to call a method related to a bean of support.

• How to call this method?

  I wrote this method earlier, but I do not remember how to call it. Can someone help me?

  public class PostReview extends Thread {
      String _url = new String();
  
      public void Submit(String _url) {
          ConnectionFactory connFact = new ConnectionFactory();
          ConnectionDescriptor connDesc;
          connDesc = connFact.getConnection(_url);
          if (connDesc != null) {
              HttpConnection httpConn;
              httpConn = (HttpConnection)connDesc.getConnection();
              try {
                  final int iResponseCode = httpConn.getResponseCode();
                  UiApplication.getUiApplication().invokeLater(new Runnable()
                  {
                  public void run() {
                      //Dialog.alert("Response code: " + Integer.toString(iResponseCode));
                  }
                  });
              } catch (IOException e) {
                  Dialog.alert("Caught IOException: " + e.getMessage());
              }
          }
      }
  }
  

  You can simply call News PostReview.Submit (url). But why the class extends Thread If you aren't actually create or who runs an instance of thread?

• AM how to call the methods of class Impl EO

  Hello world

  I try to display database data in a table, and I need to add a transitional and calculated attribute.

  So I created an EO, I added a transitional attribute, and now I need to create the method that calculates its value.

  I created this method of AOS.

  Back to EO Impl class, I want to call this method in the Get accessor of my transitional attribute.

  To call this AM method in the EO Impl category, I have to get the AM, and I don't know how to do it. Because I'm used to getting the pageContext controller AM.

  I googled and found that I don't need to create the method in the AM, I found that I just have to code directly in the Get accessor.

  But again, to calculate my transitional attribute, I have need for some queries and for that I need OADBTransaction, which means once again, I need to get the AM in the Impl EO class.

  I'm confused, I don't know how to do, if anyone can help please

  Thank you

  Kind regards

  Afaf

  If you derive the value based on the query, it would be better to do it in a single query.

  If you can stick the main request and the subquery (s) here, I take a look.

  If this is not possible using the query, you can get the oaDBTransaction like below in the VO RowImpl.

  Import oracle.apps.fnd.framework.OAApplicationModule;

          OAApplicationModule appModule = (OAApplicationModule)this.getApplicationModule();
          appModule.getOADBTransaction()
  

  See you soon

  AJ

• How to call a method abstract in Java

  Hi all

  I am new to Java, and have been learning. I have a question here. I came across the following Java class and trying to understand but got confused how he is able to call an abstract method. Here's the code I'm referring to:

  package sampleapps.gui;

  Javax.swing import. *;

  import java.awt.*. *;

  public class InnerClassAnimationExample {}

  int x = 70, y = 70;

  Public Shared Sub main (String [] args) {}

  InnerClassAnimationExample innerClassAnimationExample = new InnerClassAnimationExample();

  innerClassAnimationExample.go ();

  }

  public void getCurrentCard {}

  JFrame frame = new JFrame();

  frame.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE);

  NewMyDrawPanel drawPanel = new NewMyDrawPanel();

  frame.getContentPane () .add (drawPanel);

  frame.setSize (300, 300);

  frame.setVisible (true);

  for (int i = 0; i < 500; i ++) {}

  x ++ ;

  y ++ ;

  drawPanel.repaint ();

  try {}

  Thread.Sleep (50);

  } catch (Exception e) {}

  e.printStackTrace ();

  }

  }

  }

  class NewMyDrawPanel extends JPanel {

  {} public void paintComponent (Graphics g)

  Graphics2D g2d = (Graphics2D) g;

  Red int = (int) (Math. random() * 255);

  int green = (int) (Math.Random () * 255);

  Blue int = (int) (Math. random() * 255);

  Color startColor = new color (red, green, blue);

  Red = (int) (Math. random () * 255);

  Green = (int) (Math.Random () * 255);

  Blue = (int) (Math.Random () * 255);

  Color endColor = new color (red, green, blue);

  GradientPaint gradient = new GradientPaint (7070, startColor, 150 150, endColor); We can also use colors straight as Color.RED, Color.BLUE

  GradientPaint gradient = new GradientPaint (7070, startColor, 150 150, endColor);

  g2d.setColor (Color.White);

  g2d.fillRect (0, 0, this.getWidth (), this.getHeight ());

  g2d.setPaint (gradient);

  g2d.fillOval (x, y, 40, 40);

  }

  }

  }

  For example, in the code above, there are an internal NewMyDrawPanel class that has a method paintComponent (Graphics g). I've highlighted the 2 lines of code above.

  Line 1 : Graphics2D g2d = (Graphics2D) g;

  Line 2 : g2d.fillOval(x,y,40,40);

  
  

  I understand that we are casting type reference to Graphics2D g reference g2d and we call the method fillOval() on g2d. I do not see a method of fillOval() in the Graphics2D class but it's there in the Graphics class and Filloval()) method is an abstract method.

  So my question is:

  1. If we are not able to instantiate an abstract class (Graphics2D Graphics classes) and how are we able to access the abstract method fillOval()

  2. Secondly, given that the fillOval() method is an abstract method, it has no implementation for the method. However, when I call the method fillOval() on Graphics2D reference, I was able to draw and fill in an oval of the specified coordinates. Then, where the actual implementation code would be?

  Could you please, somebody explain how this happened? Pls help.

  Thanks in advance.

  Mahesh Reddy Y V wrote:

  1. If we are not able to instantiate an abstract class (Graphics2D Graphics classes) and how are we able to access the abstract method fillOval()

  2. Secondly, given that the fillOval() method is an abstract method, it has no implementation for the method. However, when I call the method fillOval() on Graphics2D reference, I was able to draw and fill in an oval of the specified coordinates. Then, where the actual implementation code would be?

  The point of having the Graphics class declaring fillOval() summary, is that we can have confidence that all the graph goes instantiable subclass is an implementation of this method. You as the user of this unknown implementer of graphics have no need of care including probably several classes in this legacy hirarchie did the implementation. You just trust in the fact that it must be there, because the java compiler takes care of this.

  Good bye

  DPT

• How to call a method public applicationModuleIMPL bean managed

  Hi all
  
  How can I call a method public amimpl in my bean managed
  
  my version of jdev is 11.1.1.2.0
  
  Thanks in adv

  Please see the developer's guide:
  http://download.Oracle.com/docs/CD/E12839_01/Web.1111/b31974/bcservices.htm#sm0212
  First, the method must be exposed in the interface of the client of the AOS.

  (The link is 11g dev guide).

• How to call a method of itemRenderer

  Hello

  I need to call a method when the click on an HBox in DataGrid. However, when I try to call the method on click Control HBox property, an error appears stating "call to a goToAlertTab possibly undefined method." I duly defined this method within the tag < mx:Script >. Here is the code example. Is someone can you please tell me what is the problem?

  < mx:DataGridColumn headerText = "Alerts" dataField = "alert" >
  < mx:itemRenderer >
  < mx:Component >
  < mx:HBox horizontalGap = "2" horizontalAlign = "center" click = "goToAlertTab ()" >
  < mx:Canvas height = "100%" backgroundColor = "Red" alpha = "0.8".
  Width = "{Data.Alert.Critical}" toolTip = "{" criticism:'+ data.alert.critical "}" > "
  < mx:Label text = "" / >
  < / mx:Canvas >
  < mx:Canvas height = "100%" backgroundColor = "0xff6600" width = "{data.alert.error}" toolTip = "{'Error:'+ data .alert .error}" > "
  < mx:Label text = "" / >
  < / mx:Canvas >
  
  < mx:Canvas height = "100%" backgroundColor = "Yellow" alpha = "0.8".
  Width = "{Data.Alert.Warning}" toolTip = "{'Warning:'+ data .alert .warning}" > "
  < mx:Label text = "" / >
  < / mx:Canvas >
  
  < / mx:HBox >
  < / mx:Component >
  < / mx:itemRenderer >
  < / mx:DataGridColumn >

  It is obvious that it is very difficult to go throw your hierarhy to change tab, event dispatching easier.

  It http://www.adobe.com/devnet/flex/articles/itemrenderers_pt1.html is a good example on the distribution of the itemRenderer events handling them.

  Can be also useful that you can use to navigate through the application. Read the docs to learn more about them.