Hi

I want to use a calendar that allows the user to pick several dates by clicking on them. 

My question is, how can I change the background colour of the days the user clics on, when using an UltraMonthViewMulti ? (Although I've never used an UltraMonthViewMulti control yet).

For instance, if the user clics on the 10th, I want to set the background colour of the 10th to red. If he then clicks on the 22nd, I want to change the 22nd also to red but maintaining the colour red on the 10th. 

Also, once he has "marked" several days in red, how can I iterate through the days to check which ones are red?

Thank you