Hello, I have implemented my first FLEX page! But I am having performance problems when my AdvancedDataGrid contains a larger number of rows and columns.
I am trying to generate some sort of Gantt Chart, with the difference that the cells are drawn vertically. Each cell contains a dynamic number of buttons. And each buttons have a dynamic height representing some data (like a bar chart). Each button links to a different URL to drill down the data (in a separate page). This also means that the rows height is dynamic. My first (naive) implementation used an itemRenderer implemented in MXML with a VBox and some dynamically generated Buttons. It works great with few rows and columns. But with real data (~ 20 rows and ~ 50 columns) the whole page is too slow. In average, there is about 200 buttons to be generated. Many cells are empty, while some contains one or more buttons. I read the canvas should be avoided (http://blogs.adobe.com/aharui/2007/03/thinking_about_item_renderers_1.html). What should I do in my case? Do I need to manually draw some rectangles and catch click events? Thanks, Thierry
