Problems in capturing the button event

Hi
I have created a BSP page with some buttons on it.
I am trying to execute some code on click of the button, I am capturing the button in OnInput processing event using the following code
event_data = cl_htmlb_manager=>get_event( runtime->server->request ).
however the event_data is not getting populated with the button event and i am getting a null reference dump...
can you tell me if i need to anything else apart from adding the above code.
Thanks
Bharath Mohan B

Hi Bharrie,
the online documentation describes this very clearly. You access it by double-clicking on the BSP Extension element in the Tag Browser.
A brief snippet from the doco....
DATA: event TYPE REF TO CL_HTMLB_EVENT.
event = CL_HTMLB_MANAGER=>get_event( runtime->server->request ).
IF event->name = 'button' AND event->event_type = 'click'.
DATA: button_event TYPE REF TO CL_HTMLB_EVENT_BUTTON.
button_event ?= event.
ENDIF.
Cheers
Graham Robbo

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private function keyHandler(event:KeyboardEvent):void {
var ctrlPressed:Boolean = event.ctrlKey;
// If the user presses Ctrl + A, select all chart items.
if (ctrlPressed) {
var curKeyCode:int = event.keyCode;
if (curKeyCode == 65) { // 65 is the keycode value for 'a'
selectItems();
private function selectItems():void {
// Create an array of all the chart's series.
var allSeries:Array = myChart.series;
// Iterate over each series.
for (var i:int=0; i<allSeries.length; i++) {
var selectedData:Array = [];
// Iterate over the number of items in the series.
for (var j:int=0; j<expensesAC.length; j++) {
selectedData.push(j);
// Use the series' selectedIndices property to select all the
// chart items.
allSeries
.selectedIndices = selectedData;
]]>
</mx:Script>
<mx:Panel height="100%" width="100%">
<mx:PlotChart id="myChart"
height="207"
width="350"
showDataTips="true"
dataProvider="{expensesAC}"
selectionMode="multiple"
>
<mx:series>
<mx:PlotSeries id="series1"
xField="Expenses"
yField="Profit"
displayName="Expenses/Profit"
selectable="true"
/>
<mx:PlotSeries id="series2"
xField="Amount"
yField="Expenses"
displayName="Amount/Expenses"
selectable="true"
/>
<mx:PlotSeries id="series3"
xField="Profit"
yField="Amount"
displayName="Profit/Amount"
selectable="true"
/>
</mx:series>
</mx:PlotChart>
<mx:Legend dataProvider="{myChart}" width="200"/>
</mx:Panel>
</mx:Application>
This example won't work. nothing happen after pressing ctrl
+A .
can any body help me in that?
Thanks
sm

This line of your code:
allSeries.selectedIndices = selectedData;
should be this (that's what in the PDF):
allSeries.selectedIndices = selectedData;
Ya gotta copy the sample code correctly...
Also, nothing will happen from the keyboard until you click
somewhere on the chart.

Unable to capture button event in pageLayout Controller

Hi Guys,
I have the following layout
pageLayout
pageLayoutCO (controller)
----header (Region)
----------messageComponentLayout (Region)
-----------------MessageLovInpurt
-----------------MessageChoice(Item)
-----------------MessageTextInput
-----------------MessageLayout
----------HideShow (Region)
-----------------MessageLovInpurt(Item)
-----------------MessageChoice(Item)
-----------------MessageTextInput(Item)
-----------MessageComponentLayout (Region)
-----------------MessageLayout
------------------------SubmitButton(ID:SearchBtn)
------------------------SubmitButton(ID:ClearBtn, fires partial action named clear)
-----------header(Region)
I am not able to capture the event fired by the button ClearBtn in the controller of the pagelayout.....
The two methods I used as follows aren't worked:
if ("clear".equals(pageContext.getParameter(OAWebBeanConstants.EVENT_PARAM)))
if (pageContext.getParameter("ClearBtn") != null) {
what should i do in order to capture the button event in the pageLayout Controller
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Edited by: user8898100 on 2011-8-2 上午7:49

Mandy,
Its really strange that its not able to caputure the event in CO.
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Hi Gurus,
I am not able to capture the button event (of seeded controller) in extended controller.
I have written code in extended controller like below:
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Please help me in resolving the issue.
Thanks,
Srinivas
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Hi Bm,
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I have tried the same but no luck.
Please help in getting this resolved.
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Srinivas

Not able to capture button event in pageLayout Controller

Hi Guys,
I have the following layout
pageLayout ------------------------ pageLayoutCO (controller)
----messageComponentLayout (Region)
----------messageComponentText (item)
----------messageComponentText (item)
----------messageComponentText (item)
----------messageLayout (Region)
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I am not able to capture the event fired by the button BTN1 in the controller of the pagelayout..... but if i set a controller at the messageComponentLayout iam able to capture the event.
what should i do in order to capture the button event in the pageLayout Controller
Thanks in advance
Tom.

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--Mukul

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I have added a custom button on ALV toolbar of my web dynpro view. Now when user click that button, i want to implement the functionality...like onAction...How to do that...where do i need to write the code and how can i capture the button event...
pls suggest

Hi ,
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DATA: ui_sepa1                    TYPE REF TO cl_salv_wd_fe_separator.
DATA: sepa1                       TYPE REF TO cl_salv_wd_function.
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custom functional;ity
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Regards,
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Hi All
i m being required to capture a button event in train bean Navigation, i m doing customization in Iexpense Module,here in Create IExpenseReport i need to capture the events of Remove,Return etc.how is it possible any clue would be very helpful.
Thanx
Pratap

try this..
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"NavBar".equals(pageContext.getParameter(SOURCE_PARAM))
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int target = Integer.parseInt(pageContext.getParameter(VALUE_PARAM));
// We use the parameter "value" to tell use the number of
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String targetPage;
switch(target)
case 1: targetPage = "/oracle/apps/dem/employee/webui/EmpDescPG"; break;
case 2: targetPage = "/oracle/apps/dem/employee/webui/EmpAssignPG"; break;
case 3: targetPage = "/oracle/apps/dem/employee/webui/EmpReviewPG"; break;
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pageContext.setForwardURL("OA.jsp?page=" + targetPage,
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null,
pageParams,
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