Get value of a selected row in a TableView

Question

Hi all.
I'm very new to BSP-Extensions and don't know how to get the values of a selected row in a tableview. I've written a simple bsp with a tableview and a button (both htmlb). I want to get the selected values (as a workarea of tab or cell values) of the tableview at the moment where a user hits the button. I have thought that i could use the method GET_CELL_VALUE but it never works.
Here are my type definitions:
TYPES t_scarr TYPE TABLE OF scarr.
Here are my page attributes:
DATA pa_str_scarr TYPE scarr.
DATA pa_tab_scarr TYPE t_scarr
Here is the layout coding:
<htmlb:content design           = "design2003"
               controlRendering = "SAP" >
  <htmlb:document>
    <htmlb:documentHead>
    </htmlb:documentHead>
    <htmlb:documentBody>
      <htmlb:form>
        <htmlb:tableView id             = "tableview_scarr"
                         table          = "<%= pa_tab_scarr %>"
                         headerText     = "Table SCARR"
                         headerVisible  = "TRUE"
                         width          = "100%"
                         selectionMode  = "SINGLESELECT"
                         onRowSelection = "select" >
        </htmlb:tableView>
        <htmlb:button id      = "button_go"
                      text    = "Go"
                      onClick = "button_go" />
      </htmlb:form>
    </htmlb:documentBody>
  </htmlb:document>
</htmlb:content>
Here is the coding of OnInitialization:
SELECT * FROM scarr INTO TABLE pa_tab_scarr.
And this is my OnInputProcessing:
DATA: event TYPE REF TO cl_htmlb_event,
      tv TYPE REF TO cl_htmlb_tableview,
      table_event TYPE REF TO cl_htmlb_event_tableview,
      selected_row_index TYPE selectedrow-index,
      cell_value TYPE string.
IF event_id = 'htmlb'.
  event = cl_htmlb_manager=>get_event( runtime->server->request ).
  CASE event->server_event.
    WHEN 'button_go'.
      tv ?= cl_htmlb_manager=>get_data( request = request
                                        name    = 'tableView'
                                        id      = 'tableview_scarr' ).
      IF tv IS NOT INITIAL.
        table_event = tv->data.
        selected_row_index = table_event->selectedrowindex.
        cell_value = table_event->get_cell_value(
            row_index    = selected_row_index
            column_index = 1 ).
      ENDIF.
  ENDCASE.
ENDIF.
What is wrong and what is the best way to get the selected data at this moment?

Answer 1

In your code....
change
     <htmlb:button id      = "button_go"
                      text    = "Go"
                      onClick = "button_go" />
to
     <htmlb:button id      = "button_go"
                      text    = "Go"
                      onClick = "onInputProcessing" />
Also you are not getting the <b>selectedRowIndextable</b>.That might also be the problem...
<b><i>Do reward each useful answer..!</i></b>
Thanks,
Tatvagna.