Passing variable to htp.p in a PL/SQL Dynamic Content - html

Question

I am trying to pass a value in a variable for validation based on a db column and a checkbox on the UI component.
NOTE: Max_Set is the variable holding the maximum number from the DB column which is to be validated against the numberOfChecked items. However, when i pass Max_Set to the htp.p script, i am unable to use the value in the variable.
select num into Max_Set from table where column_name = name;
htp.p('<script type="text/javascript">');
htp.p('function ValidateSelection1()
{
var checkboxes = document.getElementsByName("student");
var numberOfCheckedItems = 0;
var Max_num = Max_Set
for(var i = 0; i < checkboxes.length; i++)
{
if(checkboxes[i].checked)
numberOfCheckedItems++;
}
if(numberOfCheckedItems > Max_num)
{
alert("You cant select more than the required number for this SL Site!");
return false;
}
}');
htp.p('</script>');
How can I use the value from Max_Set into htp.p script without it being considered as a string?

Answer 1

In your pl/sql code, everything within the htp call is treated as a string. If you want to use variables that are declared in pl/sql, you can concatenate (||) to put it all together. I replaced the "Max_Set" with "l_max_set" to indicate that this is a local pl/sql variable and not a javascript variable and the initcap tends to make it look like javascript.
select num into l_max_set from table where column_name = name;
htp.p('<script type="text/javascript">');
htp.p('function ValidateSelection1()
{
var checkboxes = document.getElementsByName("student");
var numberOfCheckedItems = 0;
var Max_num = '||l_max_set||';
for(var i = 0; i < checkboxes.length; i++)
{
if(checkboxes[i].checked)
numberOfCheckedItems++;
}
if(numberOfCheckedItems > Max_num)
{
alert("You cant select more than the required number for this SL Site!");
return false;
}
}');
htp.p('</script>');