Currently, when we create a Grid Application that contains master/detail in the grid, then the record detail will be loaded right after the master record is loaded, too. This causes the page is loaded very slow, moreover if I have thousand records in the detail table (even if the detail record of each master only three - five records).
To fix this problem, then detail records should be loaded only when user needs it. The question is, can you fix this by adding AJAX functionality for displaying the detail record? In other words, the detail record should be loaded only when user click on the (+) button/icon.