Capturing Enter key in ALV

Hi Experts,
Am using an editable alv. I want to perform some actions when Enter key is pressed.
I did this in DOMODIFY. But this makes the scroll bar in initial position. Kindly help me on this.
Regards,
Vijayakumar.

Hi vijayakumar,
You can refer this link for info about ENTER key event trigger. Could you please post what you want to perform when Enter key is pressed.
Link: [http://wiki.sdn.sap.com/wiki/display/ABAP/InteractiveEditableOOALVgridwithdynamicitab,FCATandENTERkeyeventtrigger]
Regards,
Anand G

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Capture ENTER event in alv

Hi friends ,
I want capture "enter " event whenever user presses enter at ALV fields .
Well i have used an event "handle data changed" but then it wont get triggered
Unless data in ALV field is changed .
Please suggest me how to capture event without data getting changed ,
As i want validate data , when user presses enter on alv fields .
Thanx in advance .

If you want to trigger PAI for Enter key even when no data is changed, then you need to set I_APPL_EVENTS flag when creating the alv grid.
create object alv_grid
exporting
i_parent = cust_ctrl
i_appl_events = 'X'.
But this may bring in more problems because you have to now call check_changed_Data in PAI which will trigger data_Changed, but there are workarounds.
Regards,
Rao A

How to handle 'ENTER' Key on ALV Editable Grid on sub screen (Tabstrips)

Hello Experts ,
I have 2 questions with ALV Editable grid;
please help me if you have answers.
I created ALV grid on one of sub screens on a Tab Strip,
As soon as user types one of the columns of the ALV grid and press u2018ENTERu2019 key, it has to return corresponding details for that line.
I tried to implement this logic in ALV grid event u2018handle_data_changedu2019, but ALV internal table is not getting populated with new entry entered in the grid. but u2018double_clicku2019 event working my purpose, but user might need enter key.
and I thought I would do implement that logic in PAI event of the sub screen, u2018ENTERu2019 key not getting trigger on PAI event of the screen until cursor is on grid.
Another question 2: How do I control and not to be deleted a line on the grid (based on validation), where do I validate and by pass the delete function for a particular line, or suggest me to gray out only one line on the grid .
I would like to have delete function to work as it is ,except for some validations..
Can I implement using PAI event of the sub screen or any by ALV event.
Please suggest me..
Edited by: Ravindranath Arusam on May 13, 2010 2:42 PM

In DATA_CHANGED event, you will get the modified row into the attribute MP_MOD_ROWS of the impoerting object ER_DATA_CHANGED. Since this MP_MOD_ROWS is the Object reference to Data, you need to have the field symbol to get the value.
FIELD-SYMBOLS: <lft_mod_output> TYPE t_t_output.
ASSIGN er_data_changed->mp_mod_rows->* TO <lft_mod_output>.
You can get the Value of the Cell by using the method GET_CELL_VALUE of the same ER_DATA_CHANGED object and use the method MODIFY_CELL To update the value back to ALV.
To Restrict the row deletion:
When the row is deleted it is being added to Attribute mt_deleted_rows of the object ER_DATA_CHANGED. You can put the data back to the table in the DATA_CHANGE_FINISHED event. Visit this post http://help-abap.blogspot.com/2008/10/alv-disable-delete-key-on-keyboard-in.html for more information.
Regards,
Naimesh Patel

Capturing Enter Key Press

Hi
Is there a way where we can capture the Enter Key press of the Keyboard and call an event on the Enter Key Press??
For fields such as input field there is onEnter field where an event can be called, but we have a requirement where in we need to call an event on click of enter key, irrespective of where the focus on the page is on.
Any inpus on this will be helpful.
Thanks & Regards,
Gayathri Shanbhag

Hi Gayathri,
See if the following link helps:
https://cw.sdn.sap.com/cw/docs/DOC-107045
Regards,
Himanshu

Capture ENTER key on numeric keypad

I have several chemistry tutorials where users type something and then have it evaluated by pressing the ENTER key. This works fine for the ENTER key on the main part of the keyboard, but does not work for the ENTER key for the numeric keypad on keyboards with the two ENTER keys. How do I capture the ENTER key on the numeric keypad? In other words, how do I do the equivalent of the following for that key?
if the key = RETURN then
Thanks

Try checking:
if _key.keyCode = 36 then ...

Capturing Enter key event from text box

In my application, there are a number of text boxes. I want to create a feature where an enter key even is seen and specific function executed depending on which text box was in focus when the enter key was pressed. Currently I am able to capture an enter key event on the whole page. How do I do that specifically for a text box?
This application is done in HTML, javascript and Adobe AIR.
Thanks
Binu
www.verseview.info

Hi
That's true that Flex4.5 SDK under Flash builder Burito doesn't listen Enter key in Text Area for KeyUp or KeyDown event.
Here I found a work around you can use.
Add an eventlistener to the component in actionscript and set the useCapture=true next to eventlistener function. Now you can listen enter key for KeyUp or KeyDown Event
Hope this helps
Rush-me

Capture enter key press in h:inputtext

hi,
i have a h:inputText component in my jsf page. i need to capture the enter key pressed for this component. how can this be done.
thanks in advance.

You can use Javascript for this. In the onkeypress event, check if the keycode is 13 (the enter key) and handle accordingly.
onkeypress="if (event.keyCode == 13) alert('Enter pressed!');"

Capture 'Enter' key event

Hi,
Is there any way we can capture the event when a user presses the enter key inside a text field?

Hi andrewquay
you can capture the enter key by adding the following code in the textfield's change event.
if(xfa.event.change == "\u000a")
xfa.host.messageBox("enter key is pressed");
mail: [email protected]

Capturing ENTER key in WD4A

Hi all,
I m getting an input from the user in an Inputfield. I also have a table with two columns.
The textfield is used to perform wildcard search (filter) for the table. That is, if i give a character like 'A', then the records which start with the character 'A' must be shown in the table when i press teh ENTER key..
I have got this outptu when i click a button. But i want to get the same output, when i give 'A' and press ENTER key..
How to acheive the same in WD4A?
Regards,
Shanthi

hi Shanthi,
for the corresponding Enter key , make a action say act in the EventPropery of the element.
in the Onactionact,method in the Methods tab , write the same piece of code , which u r writting in the Button
u wud be able to do it nw
regards,
amit

Problem capturing "Enter Key" within 2 paragraph in JSP

I create a textarea for customer to enter their data. Something the data contain 2 paragraph with Enter Key involve. Then, i store the data into my database. Once i re-display the data back to customer, the data never show in 2 paragraph ?
who know.... pls pls help..... in JSP how am i going to do, so that the data disply in 2 paragraph.

Are you displaying the data again in TextArea? If not then you need to take care of '\r\n'. Split the data for '\r\n' and display the data in two paragraphs.
String wholeData="Your_Paragraph1\r\nYour_Paragraph2";
StringTokenizer st = new StringTokenizer(wholeData,"\r\n");
while(st.hasMoreTokens()) our.print(st.nextToken()+" ");Hope this helps.
Sudha

Handling Enter Key in Editable ALV Grid using REUSE_ALV_GRID_DISPLAY

Hello All,
I have seen a number of threads on captioned issue and everyone of them say to create FCODE for Enter in the Screen's PF Status and then handle the event.
But the catch is when you hit Enter key in ALV Grid, it will not trigger any FCODE at all because the FCODE Enter you have created is for the screen and not for the GRID. Can anyone please let me know if SAP has given any standard utility in REUSE_ALV_GRID_DISPLAY FM for handling the Enter key event.
Thanks and regards,
Mahesh

Hi,
Set the PF-status for OK key and use the FCODE or u can usethe dynamic ok_code generated .
Also try 'ENTE' .
Hope thishelps.

Enter Key Event in Editable ALV Grid

Hi all,
I am trying to create and editable ALV grid using the REUSE ALV FM.
On the grid after changing a value, if I press enter key the pai is not triggered. I have tried the various example programs (BCALV*) but could not find anything relevant.
Basically I need similar functionality to normal module pool programming as in validations on screen done when enter key is pressed after screen entry.
Is it possible to capture the Enter keypress on the ALV grid?

Hello Preet
I can only tell you how I would solve this using the ALV grid control (CL_GUI_ALV_GRID) because I have abandoned using ALV function modules.
The problem with running through PAI is whether the focus (i.e. the cursor) is still on the control or already on the (surrounding) main program. If the control has the focus, you do not run through PAI.
I would add a "Refresh" button to the toolbar of the ALV list. Normally, this button is already there or you only have to make it visible.
When the user pushes this button you catch the corresponding user-command and call the CHECK_DATA_CHANGED method to see if values have been changed on the editable grid. If so, the previous method will fire event DATA_CHANGED.
Now, in the event handler method (e.g. HANDLE_DATA_CHANGED) you receive as input a data change object (CL_ALV_CHANGED_DATA_PROTOCOL). This object contains all changed values. These values you will need to make your checks.
I assume that the logic will be similar using ALV function modules.
Regards
Uwe

Handling 'enter key' event in alv using classes

Hello all,
 i have a scenario where i have a grid from which i have to select a row and press 'enter' key, then the row would be added to grid on top of it. we have developed this grids using control and classes.
 please any one tell me how would i get the enter key code.
Thanks,
krishnam raju N

HI Raju
just go through these
check the sample program.
BALV_POPUP_TO_SELECT
ENTER is nothing but selecting the record.

Re: ALV 'ENTER' key
and go through this code
constants :
C_PF_STATUS TYPE SLIS_FORMNAME VALUE 'F_SET_PF_STATUS'.
CALL FUNCTION 'REUSE_ALV_LIST_DISPLAY'
EXPORTING
I_CALLBACK_PROGRAM = V_REPID
I_CALLBACK_PF_STATUS_SET = C_PF_STATUS
I_CALLBACK_USER_COMMAND = P_USER_COMMAND IS_LAYOUT = WA_LAYOUT
IT_FIELDCAT = IT_FIELDCAT[]
IT_EXCLUDING = IT_EXTAB[]
IT_SORT = IT_SORT[]
TABLES
T_OUTTAB = P_ZBCAR50
EXCEPTIONS
PROGRAM_ERROR = 1
OTHERS = 2.
IF SY-SUBRC <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
2.
*& Form F_SET_PF_STATUS
Set PF_STATUS STANDARD modifying the standard toolbar
by excluding some buttons
-->P_IT_EXTAB -- TABLE OF EXCLUDING FUNCTIONS
FORM F_SET_PF_STATUS USING RT_EXTAB TYPE SLIS_T_EXTAB.
CLEAR : WA_EXTAB,
IT_EXTAB.
*--Set the Modified PF status for the ALV.
SET PF-STATUS 'STATUS_01' EXCLUDING RT_EXTAB.
ENDFORM. " SET_PF_STATUS
3.
*& Form f_user_command
Handle user action on ALV toolbar
FORM F_USER_COMMAND USING R_UCOMM LIKE SY-UCOMM
RS_SELFIELD TYPE SLIS_SELFIELD.
DATA : L_ANSWER TYPE C.
RS_SELFIELD-REFRESH = C_X.
IF R_UCOMM = 'ENTR'.
Do your processing here.
ENDIF
and go through these links
how to identify pressing ENTER on ALV
How to capture the event in ALV grid display?
Re: ALV-Grid: No reaction to Enter-Button

IF IT HELPS REWARD WITH POINTS
Regards Rk
Message was edited by:
 Rk Pasupuleti

Action for ENTER KEY is not working in alv grid output (Classical)

Hi Experts,
I have searched SDN around 8 hours and could not get any help on my below issue.
I am developing ALV report using function module (Classical ALV). ALV output has 4 input enable fields, if user enters data in any of those fields and clicks on enter button from key pad..the remaining fields needs to be filled automatically.
I am facing the issue with enter key, even if i press enter key in the output there is no action and hence no user command triggered. May be i am using wrong funcion code in wrong way.
Could any one tell me what function code can we assign for ENTER action in PF-STATUS?
Regards,
Murali Mohan

Hi
Try this simple code, it works fine:
TYPE-POOLS: SLIS.
DATA: BEGIN OF ITAB1 OCCURS 0,
       BUKRS LIKE T001-BUKRS,
       BUTXT LIKE T001-BUTXT,
      END OF ITAB1.
DATA: GT_FIELDCAT   TYPE SLIS_T_FIELDCAT_ALV,
      GT_REPID    LIKE SY-REPID.
START-OF-SELECTION.
SELECT BUKRS BUTXT INTO TABLE ITAB1
     FROM T001.
END-OF-SELECTION.
GT_REPID = SY-REPID.
CALL FUNCTION 'REUSE_ALV_FIELDCATALOG_MERGE'
    EXPORTING
      I_PROGRAM_NAME     = GT_REPID
      I_INTERNAL_TABNAME = 'ITAB1'
      I_INCLNAME         = GT_REPID
    CHANGING
      CT_FIELDCAT        = GT_FIELDCAT.
CALL FUNCTION 'REUSE_ALV_LIST_DISPLAY'
    EXPORTING
      I_CALLBACK_PROGRAM       = GT_REPID
      I_CALLBACK_PF_STATUS_SET = 'SET_PF_STATUS'
      I_CALLBACK_USER_COMMAND = 'USER_COMMAND'
      IT_FIELDCAT              = GT_FIELDCAT
    TABLES
      T_OUTTAB                 = ITAB1.
FORM USER_COMMAND USING R_UCOMM     LIKE SY-UCOMM
                      RS_SELFIELD TYPE SLIS_SELFIELD.
CASE R_UCOMM.
    WHEN 'ENTER'. MESSAGE I208(00) WITH 'Pressed ENTER key'.
    WHEN OTHERS.
ENDCASE.
ENDFORM.                    "USER_COMMAND
FORM SET_PF_STATUS USING RT_EXTAB TYPE SLIS_T_EXTAB.
SET PF-STATUS 'LIST_ALV' EXCLUDING RT_EXTAB.
ENDFORM.                    "SET_PF_STATUS
Max

How to capture the enter even in alv

hi, experts
my requirement is that:
i create an alv ,set it response to the enter even, if the content has changed, a class will be response it .
the code like below:
    CALL METHOD g_grid->register_edit_event
      EXPORTING
        i_event_id = cl_gui_alv_grid=>mc_evt_enter.
    CREATE OBJECT g_event_receiver.
    SET HANDLER g_event_receiver->handle_data_changed FOR g_grid.
but if the alv content has no changed, nothing will be happen, i want to do something such as popup a message even if the content has not changed and user press enter.
pls help me ,thanks

I don't think this is possible.
may be you can do is
during the enter key is pressed
    call method cl_gui_cfw=>set_new_ok_code
             exporting
                 new_code = 'DUMMY'.
and in the user command
if ok_code eq 'DUMMY'
    call method g_grid->check_changed_data
      importing
        e_valid = v_valid.
    if v_valid ne c_x.
      call function 'POPUP_TO_CONFIRM'
        exporting
          titlebar              = text-025
          text_question         = text-026
          text_button_1         = text-027
          text_button_2         = text-028
          display_cancel_button = ' '
        importing
          answer                = v_answer.
endif.
a®s
Edited by: a®s on Jul 2, 2008 10:37 AM

Capturing Enter key in ALV

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