Getting a total or sum of numbers

Question

I have a MD from. In the detail form, I have a field for numbers. When there are multiple rows in the detail form, how do I add or get the sum of all the numbers. I need this total to appear in the Master form in a "Total Amount" field. I think it has something to do with the Data Value type in the edit form, and writing an expression or sql for that. Don't know much about writing code.

Answer 1

Hi,
You can do this using javascript.
Say you have an MD form on dept and emp and you want show the sum of the salary in the master block in a column
called 'SUM'
1) Write a 'onchange' javascript event for the detail salary column like this
var l_val = 0;
var l_index = 0;
for(i=0;i<document.forms[0].length;i++)
l_name = document.forms[0].elements.name;
l_index = l_name.indexOf('MDFORM_0605210238.DETAIL_BLOCK.SAL');
if (parseInt(l_index) != -1)
alert(document.forms[0].elements[i].value);
if (document.forms[0].elements[i].value != 0)
l_val = l_val+parseInt(document.forms[0].elements[i].value);
for(i=0;i<document.forms[0].length;i++)
if (document.forms[0].elements[i].name ==
'MDFORM_0605210238.MASTER_BLOCK.SUM.01')
document.forms[0].elements[i].value =
l_val;
This code assumes that the salaray column has a default value '0'.
The above code is a just a sample to illustrate. The column names referred here are from my portal.
You should replace with your code to suit your requirements. To get the names of column look at the source of the
runtime form.
Thanks,
Sharmila