Cell Binding/Table View Iterator

Hi Friends,
I am getting error while editing the particular cell of column table view. when I enter the changes, they are not updating in the cell.I used the following code.
method IF_HTMLB_TABLEVIEW_ITERATOR~GET_COLUMN_DEFINITIONS .
APPEND INITIAL LINE TO p_column_definitions ASSIGNING <def>.
<def>-COLUMNNAME = 'RELDATE'. <def>-EDIT = 'X'.
method IF_HTMLB_TABLEVIEW_ITERATOR~RENDER_ROW_START .
m_row_ref ?= p_row_data_ref.
endmethod.
method
IF_HTMLB_TABLEVIEW_ITERATOR~RENDER_CELL_START .
CASE p_column_key.
WHEN 'RELDATE'.
IF p_edit_mode IS NOT INITIAL.
DATA: Rdate TYPE STRING.
Rdate = m_row_ref->RELDATE.
p_replacement_bee = CL_HTMLB_INPUTFIELD=>FACTORY(
 id = p_cell_id
 value = Rdate
 type = 'DATE'
 VALUE = PCELL_BINDING
 showHelp = 'TRUE'
 encode = 'TRUE').
I am bit confused abt MVC.Please mail me the exact code changes to be done in MVC-Class controller.
Regards
CSM Reddy

Pls check the code, & mail me back in case of any errors.
method DO_HANDLE_EVENT .
DATA: itabtype type standard table of stdview1.
DATA: tv TYPE REF TO cl_htmlb_tableview.
tv ?= cl_htmlb_manager=>get_data(
 request = runtime->server->request
 name = 'tableView'
 id = 'stdview1' ).
IF tv IS NOT INITIAL.
 DATA: tv_data TYPE REF TO cl_htmlb_event_tableview.
 tv_data = tv->data.
 IF tv_data->prevselectedrowindex IS NOT INITIAL.
 FIELD-SYMBOLS: <row> like LINE OF ITABTYPE .
 READ TABLE ITABTYPE INDEX tv_data->prevselectedrowindex
 ASSIGNING <row>.
 DATA value TYPE string.
 value = tv_data->get_cell_id( row_index =
 tv_data->prevselectedrowindex
 column_index = '6' ).
 DATA: inputfield TYPE REF TO cl_htmlb_inputfield.
 inputfield ?= cl_htmlb_manager=>get_data(
 request = request
 name = 'DESCRIPTION'
 id = value ).
<row>-DESCRIPTION = inputfield->value.
ENDIF.
ENDIF.
Regards
CSM Reddy

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