Hello Stef,
thank you for your reply but your examples does not match my criteria at all. Your example CSV data in your example report only consists of 3 columns. I deliberately added my class definition to my initial question. My records consist of 4 columns.
Maybe my english wording is not good enough. I try to explain my requirements again with more details. My customers are theaters. They play each event (maybe show is a better word for it?) multiple times over many month. For example "Event 1" will be played multiple times in September, October and November... Now take a look at chart.jpg, please. The chart depict how many orders, which are placed in September, are for the "Event 1" played in Sept/Oct/Nov/Dec/Jan/Feb. Furthermore the chart depicts how many orders a placed in October for the shows in Oct/Nov/Dec/Jan/Feb/Mar/April and so on.
Is it not clear what chart.jpg depicts? Is it possible to create such a chart with the column diagram by using the grouping feature?
Best Regards from Germany,
Tobias
