Hi Christian Ducourtieux,
This is possible, however, you would have to do this manually. You can find the date time format strings that you can use as mask here
. However, there is no day-month culture specific predefined pattern for this. What I would recommend is to create a mask based on the culture of the masked control.
Regarding the numeric mask control, it will still use the current culture and get the decimal symbol from it. If you want to have a modified decimal symbol, you can create your own culture and change it from the NumberFormat property of the culture.
the Telerik team
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