I am working on reporting stuff and I am planning to use extjs js as my GUI.
As extjs is cross browser and uses the AJAX, I want to exploit to make the reporting interface more interactive.
I am looking for two components which extjs does not have.
Here is what I am looking for
1.Column spanning for table headers so that I can have some column grouping as the tables are not always just a single column in reports and should be resizable
(Look for the table header pic)
2.Cross table like spread sheet component
Could any one point me is there any components like this. If not I like to build one or customize existing. Need some expert advice how difficult is this to do.