Hello,
I need to highlight some calendar selected dates with red colour and some with grey. Could you please advise how it's easier to do with radcalendar?
RadCalendar does not support the described scenario out-of-the-box. I suggest that you create a Custom Visual state inside of SelectionStates VisualGroup of CalendarButtonStyle. After that you can use an attached property with desired logic to control the newly created VisualState.
I've attached a sample solution demonstrating the above approach.
Hope it helps.
Regards,
Masha
Telerik
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