Change the value of a field in a form when the form is displayed

Question

Hello
I have a report which has a link to a form for updating the records. I have used a link to the form from report which displays the the record to be updated i.e it gets default values from the report. I need to change one of these values at the time of displaying the form. The set_value in the 'before displaying the page' section doesn't change the vaue displayed in the form. I tried in other 'Advanced pl/sql' sections provided but didn't succeed.
Thank you
Jayasree

Answer 1

hi,
let's call the new value u want to set "NewValue"
insert this code in the before displayin' the page
htp.p('<script language="Javascript1.1">
function defaultValue(fieldname)
var thefield;
for( var v=0; v < document.forms[0].elements.length; v++)
// get the right field
if (document.forms[0].elements[v].name.indexOf(fieldname) >= 0 )
thefield = document.forms[0].elements[v];
                    thefield.value='''||NewValue||''';
break;
</script>');
in the after displaying the page section call the function above with the appropriate field:
htp.p('<script language=javascript1.1>
defaultValue(''Field_Name'');
</script>');
where Field_name is the name of the field u want to change the value!
Mohamed