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MVC BSP input field - Demonstrate how to retrieve a value entered into text input field


Below is the basic code for allowing users to input text onto a html page and retrieve what they have entered
using HTMLB and MVC techniques.

Display input field and retrieve value entered

Layout
------
The code below is HTMLB.
            <htmlb:inputField id            = "fieldId"
                        invalid        = "true"
                        value          = "<%=stuid%>"
                        required       = "true"/>



DO_REQUEST method (within controller class)
-----------------
  DATA: data_input TYPE REF TO cl_htmlb_inputfield,
        ld_fieldid  TYPE zstudtls-stuid.

  data_input ?= cl_htmlb_manager=>get_data( request = runtime->server->request
                                      name    = 'inputfield'
                                      id      = 'fieldId' ).
  IF data_input IS NOT INITIAL.
    ld_fieldid = data_input->value.
  ENDIF.

Display input field and retrieve value entered - Probably a better way
of doing it but documented second to highlight the difference

Layout
------
The code below is pure HTML and not HTMLB so you will need to remove the
htmlb code that SAP insert automatically.

                    <htmlb:content design="design2003">
                    <htmlb:page title = " ">
                    <htmlb:form> 

<html>
<page>
<FORM NAME="formlist">
<table border="0" cellpadding="0" cellspacing="0">
<tr>
    <td align="RIGHT">
        <INPUT TYPE="TEXT" NAME="gd_keywords" VALUE="gd_keywords" size=60>
        <INPUT type="submit" name="OnInputProcessing(search)">
    </td>
</tr></table>
</FORM>
</page>
</html>

OnInputProcessing
-----------------
case event_id.   "declared in page attributes as type STRING
  when 'search'.
*   Sets value of parameter ready for next screen
*   gd_keywords needs to declared as type STRING within page attributes
    navigation->set_parameter( name  = 'gd_keywords' ).

*   If you create page 'courses.htm' with a field called keywords within
*   page attributes then the value entered in this page will be passed
*   through.
    navigation->goto_page('courses.htm').
endcase.