How to clear data string on cRead multi

Hi i was wondering if anyone knows how to clear the data from ncRead multi? I'm using PCI-CAN Frame API and when I use the ncRead multi VI it reads thru all of my received data frames and I'm getting overlapping data until it is cleared from my indicator. Attahced is my VI:
Attachments:
Application Part Number level suffix.vi ‏152 KB

See the "Receive" example which ships with NI-CAN 2.4 or later. It uses a different but better way to print the Frame strings to UI.
DirkW

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How to clear data in Table Control.

hi! all
How to clear the data in table control.
i have a Table control which displays column A data from the previous screen and allows to enter column B and column C and i have a button CLEAR, when i click CLEAR button the Data displaying in table control has to be cleared. how to do it.
Regards,
Nagulan

Hi,
Loop over the internal table of table control & clear data from table control.
loop at tctab.
clear tctab.
modify tctab.
endloop.
Best regards,
Prashant

How to clear data from XY graph for another trial

I have a XY graph of motor counts versus intensity. I used shift registers for building Array VI. After terminating the program once using stop terminal. And I cleared the graph. When I start taking measurement second time, same data repeats before the first one. So how can clear it. Please reply
Solved!
Go to Solution.

That's one very quick way of doing it : initialize your shift registers.
What happens in your VI is that after the VI stops (when you clic the stop button) the data that is in the shift registers (your X and Y arrays) stays in memory, so if you run again the VI it will add data into those arrays.
To initialize your shift registers you need to connect en empty array to them before the while loop. Like this :
hope this helps
When my feet touch the ground each morning the devil thinks "bloody hell... He's up again!"

Urgent : How to clear data in Buffer ?

HI Experts,
I have a problem in executing fox formula.
After execution the formula reads some records but not changing / generating any. I think, The data it is reading is in buffer.
How can i CLEAR the data in Buffer, if there is any data stored in it ?
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R.

Hi Rohit,
The function is getting executed from which place? web/gui, folder/bps0.
The buffer is cleared as soon as you exit the transaction/session.
Also, what's the need for clearing buffer, what's the issue that you are facing.
thanks
Message was edited by: Anand Jain

How to clear data from Table-Control

Hi all,
I am working on table control. I have some data on the table control.
When I press the 'Cancel' button, I require that the table-control should be cleared.
I tried using REFRESH CONTROL TC01 USING SCREEN 1001. But, the data doesn't get cleared.
Please advise.
Regards,
Saurabh Buksh.

hi
good
try this example
REPORT demo_dynpro_tabcont_loop_at.
CONTROLS flights TYPE TABLEVIEW USING SCREEN 100.
DATA: cols LIKE LINE OF flights-cols,
      lines TYPE i.
DATA: ok_code TYPE sy-ucomm,
      save_ok TYPE sy-ucomm.
DATA: itab TYPE TABLE OF demo_conn.
      TABLES demo_conn.
SELECT * FROM spfli INTO CORRESPONDING FIELDS OF TABLE itab.
LOOP AT flights-cols INTO cols WHERE index GT 2.
cols-screen-input = '0'.
MODIFY flights-cols FROM cols INDEX sy-tabix.
ENDLOOP.
CALL SCREEN 100.
MODULE status_0100 OUTPUT.
SET PF-STATUS 'SCREEN_100'.
DESCRIBE TABLE itab LINES lines.
flights-lines = lines.
ENDMODULE.
MODULE cancel INPUT.
LEAVE PROGRAM.
ENDMODULE.
MODULE read_table_control INPUT.
MODIFY itab FROM demo_conn INDEX flights-current_line.
ENDMODULE.
MODULE user_command_0100 INPUT.
save_ok = ok_code.
CLEAR ok_code.
CASE save_ok.
    WHEN 'TOGGLE'.
      LOOP AT flights-cols INTO cols WHERE index GT 2.
        IF cols-screen-input = '0'.
          cols-screen-input = '1'.
        ELSEIF cols-screen-input = '1'.
          cols-screen-input = '0'.
        ENDIF.
        MODIFY flights-cols FROM cols INDEX sy-tabix.
      ENDLOOP.
    WHEN 'SORT_UP'.
      READ TABLE flights-cols INTO cols WITH KEY selected = 'X'.
      IF sy-subrc = 0.
        SORT itab STABLE BY (cols-screen-name+10) ASCENDING.
        cols-selected = ' '.
        MODIFY flights-cols FROM cols INDEX sy-tabix.
      ENDIF.
    WHEN 'SORT_DOWN'.
      READ TABLE flights-cols INTO cols WITH KEY selected = 'X'.
      IF sy-subrc = 0.
        SORT itab STABLE BY (cols-screen-name+10) DESCENDING.
        cols-selected = ' '.
        MODIFY flights-cols FROM cols INDEX sy-tabix.
      ENDIF.
    WHEN 'DELETE'.
      READ TABLE flights-cols INTO cols
                              WITH KEY screen-input = '1'.
      IF sy-subrc = 0.
        LOOP AT itab INTO demo_conn WHERE mark = 'X'.
          DELETE itab.
        ENDLOOP.
      ENDIF.
ENDCASE.
ENDMODULE.
thanks
mrutyun^

How to clear data on ENTER from keyboard?

I have an editable ALV .
When I input the material number and press ENTER button on keyboard, it populates some more fields in the row.
using
CALL METHOD lo_grid->register_edit_event
      EXPORTING
        i_event_id = cl_gui_alv_grid=>mc_evt_enter.
I am able to trigger this in the event data_changed.
Now:;
I clear the material number and press ENTER again - it does not wipe out the fields that are filled in as above.
[This however works fine in debug mode..]
How to resolve this:
Here is my code:
In top-of-page event:
CALL METHOD lo_grid->register_edit_event
      EXPORTING
        i_event_id = cl_gui_alv_grid=>mc_evt_enter.
Then in
*       METHOD data_changed                                           *
METHOD data_changed.
    PERFORM d0100_event_data_changed USING er_data_changed
                                           e_onf4
                                           e_onf4_before
                                           e_onf4_after.
ENDMETHOD.                    "data_changed
FORM d0100_event_data_changed USING er_data_changed TYPE REF
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                                          e_onf4        TYPE char1
                                          e_onf4_before TYPE char1
                                          e_onf4_after TYPE char1.
                                                            "#EC *
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when 'MATNR'.
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endif.
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            CALL METHOD lo_grid->set_delta_cells
              EXPORTING
                it_delta_cells = lt_delta_cells
                i_modified      = 'X'
                i_frontend_only = l_frontend_only.
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Edited by: Julius Bussche on Jan 26, 2009 9:34 AM
Code tags added.

I found a work around for this - when MATNR is initial, I did a clear in the alv output table for that row and then did a refresh_table_display.
it worked.
I am leaving this open for sometime to see if any better solutions can be proposed..

How to clear data on only one member

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How to insert data to the specified row column of the multi column list box

Hi All
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stnno   stnname......................
s1           stn1
s2            stn2
s3             stn3
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stnno      sysdatetime       data
s1             12am                   1
s2              12am                   4
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s1                   ...................
s2                 ........................
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One more thing...how to insert data into the specified field row or column of a multi column list box?
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hi
i want to know,,can u say ur need clearly...and i attached two image u see that one
Indrajit
| [email protected] | [email protected] .
Attachments:
station.JPG ‏35 KB
station2.JPG ‏79 KB

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Ganesh-Babu-N-R wrote:
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How to clear the data in my page after user enter submit button

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Hi Nazeer,
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How to clear data string on cRead multi

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