Input field validation in web dynpro abap

[Former Member]

Hi....i have a input field in a view, which is bound with dictionary object of char type ,through context.for this input field, i have to allow the end users to enter the numeric and float values only,but in my condition it accepting everything and returns runtime error.for this how to validate inputs other than numerics.

Thanks & regards,

pavan maganti.

[ajoy_chakraborty · Accepted solution]

  DATA lo_nd_itab2 TYPE REF TO if_wd_context_node.
  DATA lo_el_itab2 TYPE REF TO if_wd_context_element.
  DATA ls_itab2 TYPE wd_this->element_itab2.
  DATA lv_non_numeric TYPE wd_this->element_itab2-non_numeric.
*     get message manager
  DATA lo_api_controller     TYPE REF TO if_wd_controller.
  DATA lo_message_manager    TYPE REF TO if_wd_message_manager.

* navigate from <CONTEXT> to <ITAB2> via lead selection
  lo_nd_itab2 = wd_context->get_child_node( name = wd_this->wdctx_itab2 ).

* get element via lead selection
  lo_el_itab2 = lo_nd_itab2->get_element( ).
* get single attribute
  lo_el_itab2->get_attribute(
    EXPORTING
      name =  `NON_NUMERIC`
    IMPORTING
      value = lv_non_numeric ).


  IF lv_non_numeric CO '1234567890'.
    lo_api_controller ?= wd_this->wd_get_api( ).

    CALL METHOD lo_api_controller->get_message_manager
      RECEIVING
        message_manager = lo_message_manager.

*     report message
    CALL METHOD lo_message_manager->report_success
      EXPORTING
        message_text = 'All numeric'.
  ELSE.
    lo_api_controller ?= wd_this->wd_get_api( ).

    CALL METHOD lo_api_controller->get_message_manager
      RECEIVING
        message_manager = lo_message_manager.

* report message
    CALL METHOD lo_message_manager->report_warning
      EXPORTING
        message_text = 'Contains characters'.
  ENDIF.

[Former Member]

Hi,

Please try with this code and see whether it solves your purpose:

IF ur_attribute CO '0123456789'.

then set the value for your element.

Thank you.

[Former Member]

Hi,

Assign your datatype of the field as numc.so that you can enter only numbers.