Hello
I have a list like this:
[name][course][date][result]
John Smith, Windows beginners, 01-01-2014, 10
John Smith, Windows advanced, 02-01-2014, 7
Jane Doe, Windows beginners, 01-01-2014, 5
Wanted:
A list that shows all the people that attended 2 courses and a sum of their results.
Following the example above:
John Smith, 17, (2 courses)
How can you add a custom field in designer? I have been tinkering but can't find it. If I place the cursor in a bottom row of the list, and in the ribbon I choose Options/Formula, I can enter an Xpath expression. But after clicking OK, nothing happens, nothing appears.
Is there a tutorial (for beginners) somewhere on how to add a custom field to a page?
Thank you!
D