How can I trap & display HTML syntax errors in mx:HTML at run time?

Question

I am loading HTML pages into an mx:HTML component in an AIR application. If the HTML contains errors, they show up in the trace window in debug mode.  I'd like to trap that information so I can tell the usere that there are errors (and what they are) in the production version of the application. How can I get at those errors?

Answer 1

I found it myself how to do it. The error says that it is not able to find the reference object i.e  it is asking us to refer to the table. The following piece of code will solve this problem. Have to implement this in WDDOMODIFYVIEW method of the view. This thing works comrades enjoy...
  DATA : lr_cmp_usage TYPE REF TO if_wd_component_usage,
         lr_if_controller  TYPE REF TO iwci_salv_wd_table,
         lr_cmdl   TYPE REF TO cl_salv_wd_config_table,
         lr_col    TYPE REF TO cl_salv_wd_column.
  DATA : node_year  TYPE REF TO if_wd_context_node,
         elem_year  TYPE REF TO if_wd_context_element,
         stru_year  TYPE if_alv_layout=>element_importing,
         item_year  LIKE stru_year-i_current_year,
         lf_string    TYPE char(x),
  DATA: lr_column TYPE REF TO cl_salv_wd_column.
  DATA: lr_column_header TYPE REF TO cl_salv_wd_column_header.
  DATA: lr_column_settings TYPE REF TO if_salv_wd_column_settings.
Get the entered value from the input field of the screen
node_year  = wd_context->get_child_node( name = 'IMPORTING_NODE' ).
elem_year  = node_year->get_element( ).
  elem_year->get_attribute(
   EXPORTING
    name = 'IMPORT_NODE-PARAMETER'
   IMPORTING
    value = L_IMPORT_PARAM ).
  WRITE L_IMPORT_PARAM TO lf_string.
Get the reference of the table
  lr_cmp_usage  =  wd_this->wd_cpuse_alv( ).
  IF lr_cmp_usage->has_active_component( ) IS INITIAL.
    lr_cmp_usage->create_component( ).
  ENDIF.
  lr_if_controller  = wd_this->wd_cpifc_alv( ).
  lr_column_settings = lr_if_controller->get_model( ).
get column by specifying column name.
  IF lr_column_settings IS BOUND.
    lr_column = lr_column_settings->get_column( 'COLUMN_NAME').
set Header Text as null
    lr_column_header = lr_column->get_header( ).
    lr_column_header->set_text( lf_string ).
endif.