Oh, okay. So what you do is examine the SortedColumns collection of the band and for each column in the collection check the IsGroupByColumn property. The columns in the collection are in order of how they are sorted/grouped.

Hi,

There are some columns dragged and dropped to the group box by mouse (e.g. 3 columns as in the image), what we want is to retrieve these columns which is grouped by, and the more exact info we want is the sequence of grouped columns, e.g. in the image, how to retrieve the last/deepest group clomun in code? (here we can see the column address, but how to get it in the code.)

Thanks.