How-to: Matrix
Example 1
Task
We have the concepts of books and buyers defined. A price is defined for each book and buyer.
CLASS Book 'Book';
name 'Name' = DATA ISTRING[50] (Book) IN id;
CLASS Customer 'Customer';
name 'Name' = DATA ISTRING[50] (Customer) IN id;
price 'Price' = DATA NUMERIC[14,2] (Book, Customer);
We need to create a form with a single table where rows will contain books and columns will contain buyers. Each cell should have a price for its book and buyer.