ALV Button event handling

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 ,
write following to create button:
DATA: ui_btn1                     TYPE REF TO cl_salv_wd_fe_button.
DATA: ui_sepa1                    TYPE REF TO cl_salv_wd_fe_separator.
DATA: sepa1                       TYPE REF TO cl_salv_wd_function.
DATA: btn1                        TYPE REF TO cl_salv_wd_function.
data: lr_disp_button type ref to cl_salv_wd_fe_button.
data: lv_button_text type string.
CREATE OBJECT ui_btn1.
CREATE OBJECT ui_sepa1.
create object lr_disp_button.
/to create new buttons...
lv_button_text = 'Refresh Selection'.
lr_disp_button->set_text( lv_button_text ).
lr_disp_button->SET_IMAGE_SOURCE( 'ICON_DISPLAY' ).
btn1 = l_value->if_salv_wd_function_settings~create_function( id = 'LSBUTTON' ).
btn1->set_editor( lr_disp_button ).
IN methods tab of view declare:
ON_REFRESH     Event Handler     On refresh function pf ALV     ON_FUNCTION     INTERFACECONTROLLER     ALV
in method ON_REFRESH write below code:
DATA: temp TYPE string.
temp = r_param->id.
IF temp = 'LSBUTTON'.
custom functional;ity
endif.
where :
R_PARAM      Importing     1     IF_SALV_WD_TABLE_FUNCTION
This woudl solve ur purpose.
Regards,
Vishal.

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I did something similar but wasn't using a stored procedure. Couldn't you set a flag variable once you know you're not doing the insert and in the "before displaying the form" section put an IF to check if your flag was set, and if so do an HTP.Print('You are overpaid buddy!');
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<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Susan Miller ([email protected]):
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How to add a custom PL/SQL code for a button event handler

Hi All,
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Hi All,
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'Call' in PL/SQL button event handler

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Hello Antonnella,
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Hi,
You need to use event handler for this. Check if the below link gives some direction.
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Button Event Handler in a JList, Please help.

Hi everyone,
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Can anyone help me with this. Thanks.

A renderer is not a component, so you can't click on it. A renderer is just used to paint a representation of a component at a certain position in your JList.
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ALV GRID - EVENT HANDLING

Hi all,
Please let me know how to hanldle event handling , making a cell in editable mode ,double click and hotspot creation,colorign a single cell,calling a transatcion when clicked on hotspot in a alv grid display program (not using OO concepts).
Looikng forward for a positive response.
Reagrds,
Mohinder.

Hi,
You can create your own custom status and asign it to your
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http://www.geocities.com/mpioud/Z_DEMO_ALV_REFRESH_BUTTON.html
Reward Points if found helpfull..
Cheers,
Chandra Sekhar.

Reg ALV Hyperlink event handling in WDA

Hi,
I am using one ALV for Invoice in WDA. There in that ALV, column containing VBELN has been defined as Hyperlink. On clicking of VBELN, detail about that should be opened up as PDF.
So far, this is working. But, my problem is, if once VBELN has been selected, next clicking does not pass diff VBELN.
I need to know how can I handle clicking on diff VBELN in my Invoice ALV?
If there is anything like clear or refresh, that need to be invoked in Afteraction or Beforeaction or WdModifyView...?
Or is there a syntax like
wdContext.currentContextElement().setSpace(" ");
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Edited by: Kumar Saurav on Feb 5, 2010 8:55 AM

Hi Arjun,
I followed and implemented this line --
In the DISPLAYPDF method, create a parameter ln_vbeln ref to vbeln.
Now,
Now when you call this method in the ON_CLICK event handler (use the help of code wizard to call the method),
So, why should I call this method in ON_CLICK Event Handler?
In ON_CLICK Method, this is my code that is being generated using Wizard --
LO_EL_VBRKTAB_2->GET_ATTRIBUTE(
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And, DISPLAYPDF is a Method defined in ComponentController Method Tab. There, I am employing the logic to fetch the data using Wizard from diff nodes and processing those to give the output from Smartforms as PDF.
There, I've defined ln_vbeln, but, an error comes stating - ln_vbeln cannot be a table, a reference, a string, or contain any of these objects
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Thanks.
Kumar Saurav.

ALV Tree - Event Handler

Hi All,
I amd currently developing an ALV tree program to capture the hierarchy of functional location. I managed to display the hierarchy in ALV Tree using cl_gui_column_tree.
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*&      Form register_events
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--> p1        text
<-- p2        text
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Define the events which will be passed to the backend
DATA: lt_events TYPE cntl_simple_events,
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l_event-appl_event = 'X'.
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CALL METHOD gd_tree->set_registered_events
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      cntl_error                = 1
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IF sy-subrc <> 0.
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CREATE OBJECT l_event_receiver.
SET HANDLER l_event_receiver->handle_item_double_click FOR gd_tree.
ENDFORM.                    " register_events
CLASS lcl_tree_event_receiver DEFINITION.
PUBLIC SECTION.
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      FOR EVENT item_double_click OF cl_gui_alv_tree
      IMPORTING node_key
                fieldname.
ENDCLASS.                    "lcl_tree_event_receiver DEFINITION
CLASS lcl_tree_event_receiver IMPLEMENTATION.
METHOD handle_item_double_click.
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Determine which line is selected
    CALL METHOD gd_tree->get_selected_item
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ENDCLASS.                    "lcl_tree_event_receiver IMPLEMENTATION

Hello Goh
Based on your coding you are using CL_GUI_ALV_TREE instead of CL_GUI_COLUMN_TREE.
Calling method get_selected_item within your event handler method is unnecessary because these data are already provided by the event interface.
[code]METHOD handle_item_double_click.
DATA: lt_selected_nodes TYPE lvc_nkey,
lt_fieldname TYPE lvc_fname.
*$Comment: unnecessary because these data are already provided
by the event interface (IMPORTING nodekey fieldname).
Determine which line is selected
**CALL METHOD gd_tree->get_selected_item
**IMPORTING
**e_selected_node = lt_selected_nodes
**e_fieldname = lt_fieldname.
ENDMETHOD. "handle_item_double_click[/code]
The following sample is based in report BCALV_TREE_04 but can be simply applied to your application:
[code] METHOD handle_item_double_click.
define local data
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    FIELD-SYMBOLS:
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Call this method to get the values of the selected tree line
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       E_NODE_TEXT    =
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       ES_NODE_LAYOUT =
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        node_not_found = 1
        OTHERS         = 2.
    IF sy-subrc <> 0.
    MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
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    IF ( <ld_fld> IS ASSIGNED ).
... Call transaction with selected (item) value.
    ENDIF.
ENDMETHOD.                    "handle_item_double_click[/code]
The ASSIGN statement will work if no item of the hierarchy part is selected.
Regards
Uwe

Button event handler problem

Hello,
I need to add an Event handler to a button on my JSP page. The page refreshes very three seconds for other use.
First, I added the following segment to the page.
<head>
<title>Event handler test</title>
<script type="text/javascript">

</script>
<meta http-equiv="refresh" content="3">
</head>
<input type = "button" name = "add" value = "Add" onclick="funAdd()" />
Every time I clicked the Add button, the alert message appeared. It showed the expected result.
Then, I replaced alert("Your name is already in the list."); with
<%
JOptionPane.showMessageDialog(null, "Your name is already in the list.", "Error message", JOptionPane.ERROR_MESSAGE);
%>
in funAdd().
But, the error message showed automatically every three seconds when the page refreshed without clicking the Add button.
Does any one know the reason, and how to solve the problem?
Thanks in advance.
Dan

You said it yourself, you refresh your page each 3 seconds so each 3 seconds you do a request to your server where you show a messagedialog.

Is there a C# example of using the ExpressionEdit Control Custom Button Event Handler

TestStand 4.1
C# 2008
I have added the event handler to the ExpressionEdit events as I would any event handler:
exprEdit.ButtonClick += new NationalInstruments.TestStand.Interop.UI.Ax._ExpressionEditEvents_ButtonClickEventHandler(_ExpressionEditEvents_ButtonClickEvent);
Next, I create the Event Handler using the syntax
public void _ExpressionEditEvents_ButtonClickEvent(NationalInstruments.TestStand.Interop.UI.ExpressionEditButton btn)
I get the following error when I try to build:
Error 1 No overload for '_ExpressionEditEvents_ButtonClickEvent' matches delegate 'NationalInstruments.TestStand.Interop.UI.Ax._ExpressionEditEvents_ButtonClickEventHandler'
I assume this means that I don't have the correct parameters or types in my Event Handler declaration but it matches the Object Browser. Any ideas on what I am missing?
Solved!
Go to Solution.

Try removing the "Ax." from your namespace qualifier as I marked below. I think you want the one in just the UI namespace.
Edit: well not necessarily. Is your exprEdit variable declared as "NationalInstruments.TestStand.Interop.UI.Ax.AxExpressionEdit" or as "NationalInstruments.TestStand.Interop.UI.ExpressionEdit"?
If it is an AxExpressionEdit then I think you will want your event handler to look like this:
void exprEdit_ButtonClick(object sender, NationalInstruments.TestStand.Interop.UI.Ax._ExpressionEditEvents_ButtonClickEvent e)
-Jeff
skribling wrote:
TestStand 4.1
C# 2008
I have added the event handler to the ExpressionEdit events as I would any event handler:
exprEdit.ButtonClick += new NationalInstruments.TestStand.Interop.UI.Ax._ExpressionEditEvents_ButtonClickEventHandler(_ExpressionEditEvents_ButtonClickEvent);
Next, I create the Event Handler using the syntax
public void _ExpressionEditEvents_ButtonClickEvent(NationalInstruments.TestStand.Interop.UI.ExpressionEditButton btn)
I get the following error when I try to build:
Error 1 No overload for '_ExpressionEditEvents_ButtonClickEvent' matches delegate 'NationalInstruments.TestStand.Interop.UI.Ax._ExpressionEditEvents_ButtonClickEventHandler'
I assume this means that I don't have the correct parameters or types in my Event Handler declaration but it matches the Object Browser. Any ideas on what I am missing?
Message Edited by Jeff.A. on 06-11-2010 03:25 PM
Message Edited by Jeff.A. on 06-11-2010 03:28 PM

ALV Button event handling

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