c# - Disable a command from code -

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i have command want disable depending on logged user role, there way "block" command , make not trigger code ?

<dxmvvm:eventtocommand x:name="ev_comm" passeventargstocommand="true" command="{binding editcommand}" eventname="mousedoubleclick" markroutedeventsashandled="true">

something this:

myviewmodel = (myviewmodel)datacontext;  a.editcommand.disable;

thanks


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