ChartBase change event bug?

From ChartBase 'change' event documentation: 'Dispatched when the selection changes in the chart.'
I have a LineChart.
First I click a chart item:
     1. the selectedIndex is set to 3
     2. the change event is dispatched
Then I click on an ampty chart area:
     1. the selectedIndex is set to -1
     2. the change event is NOT dispatched
Is this a bug?

I found out than the change event is dispatched after deselection only if I set:
myLineChart.selectionMode = 'multiple';
Isn't this a bug?

Similar Messages

Possible bug - Missing click event when handling change event

Using Flex 4.5 SDK, I have a spark ComboBox and a Button next to it for applying a filter according to ComboBox selection.
I listen to both the ComboBox's change event & the Button's click event (for different functions).
When I manually delete the ComboBox text value from its TextInput (i.e. changing selected index to -1) and immediately click on the Button,
the click event-handler function is not being called and only the ComboBox's change event-handler function is executed.
(Selecting a value from the ComboBox's list and clicking on the button triggers both methods on the right order.)
There's also a state definition for the module, but it isn't being changed during these operations...
Is this a bug or a correct behavior? Am I missing something here?
Any workaround suggestions?
(I thought of listening also to mouse-down or mouse-up on the button instead, but haven't tried it yet...)
*** UPDATE ***
When using the Button's mouseDown event the behavior is as expected, so there's a simple workaround.
However, it seems to me like there's a bug with the Button's click event listener or something...
*** UPDATE #2 ***
I created a test application for that and couldn't reproduce the problem.
Then I figured out the problem and solved it.
It's a bit emmbarrasing, but I actually disabled the button (enabled=false) as in a child method of the change handling code...
(If there is no value, don't allow applying the filter - It makes sense! )
Anyway... No issue after all.
However, I choose to leave this post (and not delete it) as an example of identifying and resolving a strange behavior in a complex application.

There's no need.
Please read the section UPDATE #2.

[svn:osmf:] 15527: Fix bug FM-696: Capability change events being dispatched after the trait to which they refer has been modified .

Revision: 15527
Revision: 15527
Author:   [email protected]
Date:     2010-04-16 17:21:06 -0700 (Fri, 16 Apr 2010)
Log Message:
Fix bug FM-696: Capability change events being dispatched after the trait to which they refer has been modified. Updated unit tests.
Ticket Links:
    http://bugs.adobe.com/jira/browse/FM-696
Modified Paths:
    osmf/trunk/framework/OSMF/org/osmf/media/MediaPlayer.as
    osmf/trunk/framework/OSMFTest/org/osmf/media/TestMediaPlayer.as

Major Update: The G-Keys can now be edited without recompiling by editing shell scripts at "/usr/share/g15daemon/macros/"
Each button has it's own script file named by it's label (e.g. to edit the functionality of G1, open the script named G1.) The button will try to execute the scripts as programs, so make sure they are executable (chmod +x) and as long as the name remains the same, if you want to replace the files with something different, know that the arguments currently given to the files ($1 and $2) are ($1)on/off and ($2)0-2 (where 0 is M1 and 2 is M3)
To download the updated sources, go here (only the g15daemon source/patch was updated). This thread's OP has been updated.
Last edited by rabcor (2015-02-12 04:46:48)

Type Coercion error when using Chart change event

After upgrading to the Flex Builder 3 December build. I get a
type coercion error whenever I subscribe to a chart "change" event.
I get this error even with the "Selecting chart items" code sample
in the Flex Help. Is this a known issue?
TypeError: Error #1034: Type Coercion failed: cannot convert
mx.charts.events::ChartItemEvent@7107b81 to
mx.events.IndexChangedEvent.
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at
mx.core::UIComponent/dispatchEvent()[E:\dev\flex_3_beta3\sdk\frameworks\projects\framewor k\src\mx\core\UIComponent.as:9041]
at
mx.charts.chartClasses::ChartBase/regionChangeHandler()[C:\Work\flex\dmv_automation\proje cts\datavisualisation\src\mx\charts\chartClasses\ChartBase.as:4393]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at
mx.core::UIComponent/dispatchEvent()[E:\dev\flex_3_beta3\sdk\frameworks\projects\framewor k\src\mx\core\UIComponent.as:9041]
at
mx.charts.chartClasses::ChartBase/dispatchRegionChange()[C:\Work\flex\dmv_automation\proj ects\datavisualisation\src\mx\charts\chartClasses\ChartBase.as:4624]
at
mx.charts.chartClasses::ChartBase/endTracking()[C:\Work\flex\dmv_automation\projects\data visualisation\src\mx\charts\chartClasses\ChartBase.as:4636]

swashbuck1r,
Thanks, it looks like somebody has moved the bug to the
charting components bug base and set the status to new, so it will
be investigated:
http://bugs.adobe.com/jira/browse/FLEXDMV-1648
Thanks again,
Peter

No Data Change event generated for a XControl in a Type Def.

Hello,
Maybe I am missing something but the Data Change event of a XControl is not called when the XControl is used in a Type Def. or Strictly Type Def. (see the attached file).
There may be some logics behind it but it eludes me. Any idea of why or any idea of a workaround still keeping the Type Def. ?
Best Regards.
Julian
Windows XP SP2 & Windows Vista 64 - LV 8.5 & LV 8.5.1
Attachments:
XControl No Data Change event.zip ‏45 KB

Hi TWGomez,
Thank you for addressing this issue. It must be a XControl because it carries many implemented functions/methods (though there is none in the provided example).
Also consider that the provided non-working example is in fact a reduction of my actual problem (in a 1000-VI large application) to the smallest relevant elements. In fact I use a typedef of a mix of a lot of different XControls and normal controls, some of them being typedef, strictly typedef or normal controls and other XControls of XControls (of XControls...) in a object oriented like approach...
Hi Prashant,
I use a typedef to propagate its modifications automatically everywhere it is used in the application (a lot of places). As you imply a XControl would do the same, though one would like to construct a simple typedef when no additional functionality is wanted.
The remark "XControl=typedef+block diagram" is actually very neat (never thought of it that way) because it provides a workaround by transforming every typedef into a XControl. Thanks very much, I will explore this solution.
One issue remains: All normal controls update their displayed value when inserted into a typedef but not XControls. Data change event is not triggered. I known that XControls have some limitations (no array of XControls) but I would say, like TWGomez, that this is a “bug” considering the expected functionality.

Double value change event if cursor is set busy (LV2009)

Hello everybody,
I just migrated from LV 8.0 to LV 2009 (on linux) and now got problems with a value change event. I want to send a command if a button is pressed and send another one if the button is released. After sending the command I need to wait for an acknowledge from the receiver and to avoid user interaction in between I lock the cursor with "set busy" VI until the acknowledge is received. To see, when the button is pressed or released, I use a value change event. Inside the event structure the cursor is set busy.
This worked reliable in LV 8.0 but not any more in LV 2009. The button's mechanical action is set to "switch until released" and if I press the button and keep it pressed it is reset to false automatically. The value change event is fired twice instead of only once (see attached vi) and "new value" is one time true and one time false. This doesn't happen if the mechanical action is set to "switch when pressed".
Does anybody have an explanation or a workaround for this behaviour? Am I doing something wrong or is this a bug in LV? For now I'll just keep the cursor unlocked.
Thanks for your help.
Attachments:
setMouseBusy_01.vi ‏11 KB

Hi ckis,
attached you'll find your modified example, it should do the trick now.
Regards,
Bernd
Attachments:
setMouseBusy_01.vi ‏9 KB

[Flex 4.5.1] How to prevent Radio Button from being selected when clicked on? No Changing Event?

I have a very common use case where you have a few radio buttons and only one can be selected at a time. Some of them are basic and on click should be selected right away, but other are more complex and open a pop up which requires some additional user selections after which the user selected OK or CANCEL for example and only after that the selection of the radio button should be applied programatically.
So to solve this issue I've come up with 2 workarounds:
1) make the entire group, that holds the radio button, act as a button with buttonMode="true" mouseChildren="false" and programatically change the radio button within it.
2) hold the current radio button selection in a variable and in the changeHandler of that radio button return the selection back to what was selected before. But this also causes a small flickering of the radio button which gets selected and deselected immediately after that.. not cool.
So my question is... is there something I am missing that could do the job without these workarounds... like a Changing event which I use for the ButtonBar but I can't find on the RadioButton or RadioButtonGroup... thanks!

Hi,thanks for the reply. Actually that was my third option, but not sure if it's very good also..
Here is a simple scenario:
User must select between 2 radio buttons:
1) no volume -> sets variable volume=0 and selects the radio button (that is the normal use case)
2) set volume -> opens up a pop up with a list that has a X button to close and 4 options: 25% volume, 50% volume, 75%, 100%
At this point the set volume radio button should not be selected and the user has 2 choices:
-> hit the X button to close - nothing changes and no volume radio button is still selected and volume is still = 0
-> hit one of the volume % buttons -> the set volume radio button gets selected and the variable volume=25/50/75/100 depending on the button selected by the user.
That's a pretty common scenario and it's bugging me that I can't easily alter the radio button selection logic since whenever I click it, it gets selected and I can't put a logic in between in a standard way. This should apply to any component with selection, just like ButtonBar has it with the Changing event.
So is there any other more convenient way to accomplish this scenario that you could recommend?
Thanks!

Contextual Event - "Currency Change Event" not raised?

Hey,
I am trying to raise contextual event on a table when I click on a row. The event type for a table is eventType="Currency Change Event" But is not working.
Here is the event in the PageDef file.
<events xmlns="http://xmlns.oracle.com/adfm/contextualEvent">
<event name="paramValueChangedEvent"
customPayLoad="${bindings.PolicyId.inputValue}"
eventType="Currency Change Event"/>
</events>
After that I want to raise custom method:
<methodAction id="testEvent" InstanceName="myBean.dataProvider"
DataControl="myBean" RequiresUpdateModel="true"
Action="invokeMethod" MethodName="testEvent"
IsViewObjectMethod="false"/>
Here is the event map:
<eventMap xmlns="http://xmlns.oracle.com/adfm/contextualEvent">
<event name="paramValueChangedEvent">
<producer region="*">
<consumer region="" handler="testEvent" handleCondition=""/>
</producer>
</event>
</eventMap>
When I raise the event programmatically, then the event is raised and my function is called.
Here is the code. I call this function on a custom selection listener of the table.
public void riseCurrencyChangeEvent(String treeID, String nodeID,
String attributeValuedPassedName) {
DCBindingContainer bc = ADFFacesUtils.getDCBindingContainer();
FacesCtrlHierBinding tbl =
(FacesCtrlHierBinding)bc.findCtrlBinding(treeID);
FacesCtrlHierNodeBinding node =
(FacesCtrlHierNodeBinding)bc.findCtrlBinding(nodeID);
EventDispatcher dispatcher = bc.getEventDispatcher();
node = (FacesCtrlHierNodeBinding)tbl.getRootNodeBinding();
dispatcher.queueEvent(node.getEventProducer(),
node.getCurrentRow().getAttribute(attributeValuedPassedName));
bc.getEventDispatcher().processContextualEvents();
My idea is not to call custom method after clicking on a table row, but I want to raise declaratively the event because I will need so generics.

Hi,
there is a bug 10045872 filed for this. The bug is scheduled for fixing in PS4 (11.1.1.5) I'll work on a manual - though code centric - alternative for the time being and publish it on ADF Code Corner when done.
Frank

How to handle tab change event in UI shell main area

Hi,
I have two tabs(two taskflows) in UI shell main area. one is department tab and another is employee tab. My department tab shows employees department wise. On employee tab I have emplyee table which shows employees jobwise. This employee table has the functionality of adding new record to employee vo as well.
Now i follow these steps.
1. by defualt department tab is open.
2. by clickinng on Tasks menu link i open Employee tab in to main area. Now i have both tabs in main area.
3. at Employee tab I search all employees job = accountant. It shows the search result well.
4. Now i add a new record to it and without saving/deleting this record i move to department tab.
5. at Department tab i search employees where department =20, here no relation b/w job and department.
6. Now i return to employee tab. my newly added record got disappeared. It is there but does not show in table.
How to resolve it??
I have one solution in my mind while changing the tab i can prompt to user "you can not leave the newly added record..either save it or delete it". But how to catch tab change event here? where i can write code to prompt msg to user?
Pls help.
Edited by: 900997 on May 6, 2012 4:10 AM

With apologies for the slow reply, I'm currently travelling.
Two things to note:
1) The af:document uncommittedDataWarning flag was designed to stop users navigating away from half entered records. More about this flag can be found here:
http://docs.oracle.com/cd/E23943_01/web.1111/b31973/af_orgpage.htm#CACDDDFH (see point 4)
http://www.oracle.com/technetwork/developer-tools/adf/unsaveddatawarning-096556.html
....please note our documentation from time to time spells this flag wrong with only one "t" in the word committed, so if you're attempting a bulk search check for this (and I'll raise document bugs to get this fixed in the future).
2) On addressing the ADF UI Shell, if you're switching between "pages" in the UI Shell, as separate to switching between dynamic tabs within a single page using the UI Shell, the UI Shell will actually restart the currently running task flow in the page you're returning too. You can verify this by implementing an initializer on your task flow with a log message, and watching when the initializer is called.
In addressing your last question, at this stage I think you need to assess my first answer then come back if you think you sill need to execute the code on the tab click. I also need to know are you talking about the primary level of tabs that represent each page in the UI Shell, or are you referring to the dynamic tabs within a single UI Shell page that hold your task flows?
CM.

Dynamic Change event getting error with cascading LOV's

Hi all,
In my application (v4.0.0), I have two sets of cascading drop-down select lists, these each make up a date (year, month, day) plus a time value (not cascading).
I also have a dynamic action that gets the hours difference between the two dates set above. This fires on the change event.
When I change, say the month drop-down, the day list is refreshed. But before it is refreshed, it looks to be emptied and the change event fires. I then get an error from the dynamic action because the day value passed to the query is empty (confirmed when looking at POST data).
Can anyone think of a workaround idea for this? e.g. a way to set the dynamic action to conditional?
Thanks!

Hi Peter
Thanks for the tip, I have tried this and it has helped, although not solved the problem. I was originally getting two errors appear ("AJAX call returned server error ORA-01843: not a valid month for Set Value.") and this has removed one of them...
When looking in Firebug, it seems to me that although the dynamic actions (cascading update + set value) are running one before the other, the values aren't updated in order. e.g. the cascading update is not applied before the set value action is run.
Could this be a bug with dynamic actions?

[svn:osmf:] 14474: Adding a 'dispatchInitialChangeEvent' parameter to the ' watch' method in order to allow the initial change event from being dispatched, continued.

Revision: 14474
Revision: 14474
Author:   [email protected]
Date:     2010-02-28 23:53:31 -0800 (Sun, 28 Feb 2010)
Log Message:
Adding a 'dispatchInitialChangeEvent' parameter to the 'watch' method in order to allow the initial change event from being dispatched, continued.
Modified Paths:
    osmf/trunk/framework/OSMF/org/osmf/metadata/MetadataWatcher.as

*Feedback*
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We can complain about Apple's business decisions, but these discussions are user to user talk about possible solutions.
Here are the places to report bugs:
Get an account at
http://developer.apple.com/ then submit a bug report to http://bugreporter.apple.com/
Once on the bugreporter page,
   -- click on New icon
   -- See if you need to attach a log file or log files, clicking on Show instructions for gathering logs. Scroll down to find the area or application that matches the problem.
   -- etc.

[svn:fx-trunk] 12078: Fix for change events in Slider and ScrollBar.

Revision: 12078
Revision: 12078
Author:   [email protected]
Date:     2009-11-21 00:14:46 -0800 (Sat, 21 Nov 2009)
Log Message:
Fix for change events in Slider and ScrollBar. They now dispatch change events as before, whenever the user alters the value. In addition, changeStart and changeEnd events will be dispatched at the start and end of a user interaction or animation.
TrackBase.as - Added metadata for changeStart/End events. Dispatch change, changeStart/End events when appropriate.
Slider.as - Dispatch change, changeStart/End events when appropriate.
ScrollBar.as - Dispatch the appropriate events. Note that changeStart/End will not dispatch when shift-clicking on a non-animating ScrollBar. Renamed animatingSinglePage to animatingOnce to better reflect its function. Refactored some method calls to the new private stopAnimation(), which is more consistent with Slider. Refactored the button handlers to make stepping more readable. Added a setValue call in animationEndHandler where we were ending up off the snapInterval when shift-clicking.
Updated FlexEvent, ScrollBarTestScript and VideoPlayer to handle the new events.
QE notes: Update Slider and ScrollBar tests
Doc notes: No
Bugs: SDK-24264
Reviewer: Ryan
Tests run: checkintests
Is noteworthy for integration: No
Ticket Links:
    http://bugs.adobe.com/jira/browse/SDK-24264
Modified Paths:
    flex/sdk/trunk/frameworks/projects/framework/src/mx/events/FlexEvent.as
    flex/sdk/trunk/frameworks/projects/spark/src/spark/components/VideoPlayer.as
    flex/sdk/trunk/frameworks/projects/spark/src/spark/components/supportClasses/ScrollBar.as
    flex/sdk/trunk/frameworks/projects/spark/src/spark/components/supportClasses/Slider.as
    flex/sdk/trunk/frameworks/projects/spark/src/spark/components/supportClasses/TrackBase.as
    flex/sdk/trunk/frameworks/tests/basicTests/spark/scripts/ScrollBarTestScript.mxml

[svn:osmf:] 14758: Fix FM-556: When MediaPlayer enters error state, capabilities should be set to false, and capability change events should be dispatched.

Revision: 14758
Revision: 14758
Author:   [email protected]
Date:     2010-03-15 12:27:47 -0700 (Mon, 15 Mar 2010)
Log Message:
Fix FM-556: When MediaPlayer enters error state, capabilities should be set to false, and capability change events should be dispatched. Also fixed typo in one of the capability change event names.
Ticket Links:
    http://bugs.adobe.com/jira/browse/FM-556
Modified Paths:
    osmf/trunk/framework/OSMF/org/osmf/events/MediaPlayerCapabilityChangeEvent.as
    osmf/trunk/framework/OSMF/org/osmf/media/MediaPlayer.as
    osmf/trunk/framework/OSMF/org/osmf/net/NetStreamLoadTrait.as
    osmf/trunk/framework/OSMFTest/org/osmf/media/TestMediaPlayer.as

Well, I can tell you that this kind of error is not OS related, but rather a HW thing. It happens where there is a general detection of something going wrong. Sometimes it can happen randomly and might not be an indication of a problem. But sometimes it can be caused by things that are improperly functioning within the system like bad capacitors.
Unfortunately I don't really know what to do about such things except give you machine a proper inspection. But if things are working fine, and continue to do so, I wouldn't worry about it. If it becomes a regular occurance, then I'd worry.

[svn:osmf:] 17497: Fix FM-933: ProxyMetadata doesn' t dispatch change events for its initially set inner metadata.

Revision: 17497
Revision: 17497
Author:   [email protected]
Date:     2010-08-27 09:58:09 -0700 (Fri, 27 Aug 2010)
Log Message:
Fix FM-933: ProxyMetadata doesn't dispatch change events for its initially set inner metadata.
Ticket Links:
    http://bugs.adobe.com/jira/browse/FM-933
Modified Paths:
    osmf/trunk/framework/OSMF/org/osmf/elements/LoadFromDocumentElement.as
    osmf/trunk/framework/OSMF/org/osmf/elements/ProxyElement.as
    osmf/trunk/framework/OSMF/org/osmf/elements/proxyClasses/ProxyMetadata.as
    osmf/trunk/framework/OSMFTest/org/osmf/elements/TestProxyElement.as

PDA build error when using a 'value change' event on two controls

I get a build error when I use a 'value change' event on controls of a different type or even a different numeric representation. I'm using LV 7.1 PDA with no other modules installed. Attached is a picture of the entire code and the error message.
Try to take over the world!
Attachments:
PDA Error.jpg ‏48 KB

Hi,
I verified the error that you are seeing. It appears to be a bug hence I have reported it to our developers. Hopefully this bug would be fixed in the next relaese of the PDA module.
Thank you for pointing this to us. It is through feedback that we can make LabVIEW PDA module even better.
Regards,
Ankita A.
National Instruments

ChartBase change event bug?

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