Structure RadGridView

[Ala eddine]

Hi,

I'm working on a radgridview to show 1 million rows using WCF RIA Services ;
for the moment I page the data in a radgridview ;


I have to create a generic model of a radgridview  
that expose the months in the columns , the numbers in the rows and the expenses in the cells (as values)
(for one number we have an expense by month )
i didn't found how to add  dynamically a column taking the month in the header and values in specific cells.


Number |   Month 1      |   Month 2        |        Month 3 | ........
--------------------------------------------------------------------------------
542111  |  13.2             |  3                   |                 32 | ........
658711  |   10.75          |  21                 |                 10 | ........
632911  |  5                  |   9.5               |                7.8 | ........
987321  |   0                 |   20                |              15.9 | ........


Any ideas ? thank you :)