How to read Web UI context attribute value with type

Hi,

I am trying to retreive context attribute value with type. I have a date field I would like to retreive to check if it is equal to SY-DATUM but I cannot find a function that let me do that. I first tried to use the get_property_as_string, but the format is dd.mm.yyyy and is not compliant with SY-DATUM type.

Is there anyway to retreive values from context with original type ?

Thanks in advance for your help.

Thibault