need a code for dynamic creation of context nodes and ui element

[Former Member]

i joined as a fresher  SAP ABAP WEBDYNPRO CONSULTant and working on Dynamic programming , in that i have to create UI elements dynamiclly , i have done it in two ways :

1) created dynamic table from node  which i created staticlly  by mehohod  cl_wd_dynamic_tool=>create_table_from_node .

2)n second way i am defining the both node and view dynamiclly but i am getting dump.

this is the code i am writing in wd do init.

method WDDOINIT .

  DATA: lv_root_node TYPE REF TO if_wd_context_node,
         lv_root_node_info TYPE REF TO if_wd_context_node_info,
        lv_node_info TYPE REF TO if_wd_context_node_info.

        lv_root_node_info = wd_context->get_node_info( ).

CALL METHOD lv_root_node_info->add_new_child_node

    EXPORTING

        name                         = 'FLIGHTS'

      is_mandatory                 = abap_false

      is_mandatory_selection       = abap_false

      is_multiple                  = abap_true

      is_multiple_selection        = abap_true

      is_initialize_lead_selection = abap_true

    RECEIVING

      child_node_info              = lv_node_info.



here i am filling the node .....*******      .

    data : itab TYPE TABLE OF sflight .

    select * from sflight INto TABLE itab .

    lv_root_node->get_child_node( name = 'FLIGHTS').

    lv_root_node->bind_table( itab  ).

This is the code i write in wddomodify .

DATA :lr_ui_root TYPE REF TO if_wd_view_element,

         lr_container TYPE REF TO cl_wd_uielement_container.

       CHECK first_time = abap_true.

     lr_ui_root = view->get_root_element( ).



     lr_container ?= lr_ui_root.



  cl_wd_matrix_layout=>new_matrix_layout( container = lr_container ).



  lr_container->set_width( value = '50%' ).

  lr_container->set_height( value = '50%' ).





"  Add UI elements to the container along with their layout properties



  data : lr_label_carrid type ref to cl_wd_label,

         lr_input_carrid type ref to cl_wd_input_field,

         lr_button TYPE ref to cl_wd_button,

          lr_table TYPE REF TO cl_wd_table .







  lr_input_carrid =   cl_wd_input_field=>new_input_field( bind_value = 'FLIGHTS.CARRID'

                                                          id         = 'INPUT_FIELD_CARRID' ).



  lr_label_carrid = cl_wd_label=>new_label(  id         = 'LABEL_CARRID'

                                             label_for  = 'INPUT_FIELD_CARRID'

                                             text       = 'Enter The carrier id' ).

  call METHOD  CL_WD_BUTTON=>NEW_BUTTON

  exporting

*                  BIND_DESIGN         =

*                  BIND_ENABLED        =

*                  BIND_IMAGE_FIRST    =

*                  BIND_IMAGE_SOURCE   =

*                  BIND_TEXT           =

*                  BIND_TEXT_DIRECTION =

*                  BIND_TOOLTIP        =

*                  BIND_VISIBLE        =

*                  BIND_WIDTH          =

*                  DESIGN              = E_DESIGN-STANDARD

                  ENABLED             = 'X'

*                  EXPLANATION         =

                  ID                  = 'BUTTON'

*                  IMAGE_FIRST         = ABAP_TRUE

*                  IMAGE_SOURCE        =

                   ON_ACTION           = 'GET_DETAILS'

                   TEXT                = 'GET_DATA'

*                  TEXT_DIRECTION      = E_TEXT_DIRECTION-INHERIT

*                  TOOLTIP             =

*                  VIEW                =

*                  VISIBLE             = E_VISIBLE-VISIBLE

*                  WIDTH               =

                RECEIVING

                  CONTROL             = lr_button .



  CALL METHOD CL_WD_TABLE=>NEW_TABLE

   EXPORTING

*      ACCESSIBILITY_DESCR           =

*      BIND_ACCESSIBILITY_DESCR      =

      BIND_DATA_SOURCE              = 'MAIN_VIEW.FLIGHTS'

      BIND_DESIGN                   = 'STANDARD'

*      BIND_EMPTY_TABLE_TEXT         =

      BIND_ENABLED                  =  'X'

*      BIND_FIRST_ACTUAL_ROW         =

*      BIND_FIRST_VISIBLE_ROW        =

*      BIND_FIRST_VISIBLE_SCROLL_COL =

*      BIND_FIXED_TABLE_LAYOUT       =

      BIND_FOOTER_VISIBLE           =  'X'

*      BIND_GRID_MODE                =

*      BIND_LEGEND_ID                =

*      BIND_READ_ONLY                =

*      BIND_ROW_COUNT                =

     BIND_ROW_SELECTABLE           = 'X'

*      BIND_SCROLLABLE_COL_COUNT     =

*      BIND_SELECTED_POPIN           =

*      BIND_SELECTION_MODE           =

*      BIND_TOOLTIP                  =

*      BIND_VISIBLE                  =

*      BIND_VISIBLE_ROW_COUNT        =

*      BIND_WIDTH                    =

*      DESIGN                        = E_DESIGN-STANDARD

*      EMPTY_TABLE_TEXT              =

*      ENABLED                       = ABAP_TRUE

*      FIRST_ACTUAL_ROW              =

*      FIRST_VISIBLE_ROW             =

*      FIRST_VISIBLE_SCROLL_COL      =

*      FIXED_TABLE_LAYOUT            =

*      FOOTER_VISIBLE                = ABAP_TRUE

*      GRID_MODE                     = E_GRID_MODE-BOTH

      ID                            = 'TABLE'

*      LEGEND_ID                     =

*     ON_FILTER                     = 'ON_FILTER'

      ON_LEAD_SELECT                = 'ON_LEAD_SELECT'

*      ON_SCROLL                     =

     ON_SORT                       = 'ON_SORT'

*      READ_ONLY                     =

*      ROW_COUNT                     = -1

*      ROW_SELECTABLE                = ABAP_TRUE

*      SCROLLABLE_COL_COUNT          = -1

*      SELECTED_POPIN                =

*      SELECTION_CHANGE_BEHAVIOUR    = E_SELECTION_CHANGE_BEHAVIOUR-AUTO

*      SELECTION_MODE                = E_SELECTION_MODE-AUTO

*      TOOLTIP                       =

*      VIEW                          =

*      VISIBLE                       = E_VISIBLE-VISIBLE

*      VISIBLE_ROW_COUNT             = 5

*      WIDTH                         =

    RECEIVING

      CONTROL                       = lr_table .




  LR_TABLE ?= view->get_element('TABLE').

  wd_this->table_control ?= LR_table->_method_handler .

  wd_this->table_control->set_key_attribute_name( 'CARRID').




  cl_wd_matrix_head_data=>new_matrix_head_data( element = lr_label_carrid ).

  cl_wd_matrix_data=>new_matrix_data( element = lr_input_carrid ).

  cl_wd_matrix_head_data=>new_matrix_data( element = lr_button ).

   cl_wd_matrix_head_data=>new_matrix_data( element = lr_table ).



  lr_container->add_child( the_child = lr_label_carrid ).

  lr_container->add_child( the_child = lr_input_carrid ).

  lr_container->add_child( the_child = lr_button ).

  lr_container->add_child( the_child = lr_table ).

endmethod.

but it is givinf dump i also implement action get_detail .

[Former Member]

Hi ,

Fallow the below steps....

Here student node is having firstname, lastname and dateofbirth attributes.

'YSTR_PERSON'  structure contains  3 fields, like firstname, lastname and dateofbirth

DATA: lr_node TYPE REF TO if_wd_context_node,

lr_node_info TYPE REF TO if_wd_context_node_info,

lr_child_node_info TYPE REF TO if_wd_context_node_info.

lr_node_info = wd_context->get_node_info( ).

lr_child_node_info = lr_node_info->add_new_child_node(

name = 'STUDENT'

is_singleton = abap_true

is_multiple = abap_false

is_mandatory = abap_true

static_element_type = 'YSTR_PERSON'

).

lr_node = wd_context->get_child_node( 'STUDENT' ).

DATA ls_data TYPE ystr_person.

ls_data-firstname = 'Antonia Maria'.

ls_data-lastname = 'Keller'.

ls_data-dateofbirth = '19800306'.

lr_node->bind_structure( EXPORTING new_item = ls_data ).

For Input field  fallow below code...

DATA

lr_input_field TYPE REF TO cl_wd_input_field. 

lr_input_field = cl_wd_input_field=>new_input_field(  

id = ’NAME’

bind_value = lv_bind_name).

Regards,

Venkat

[Former Member]

Hi,

Please follow the link

http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/10c837ab-d4c4-2d10-fca0-a1b6c09bc...

It contains the example where a context node and a table UI is created dynamically.

Hope it helps.

Regards,

Sayan