Hence, I Could under no circumstances update the CanExecute on my command because I had been often telling it to update a completely new reference of that command. @Jenix In that circumstance, it's a method rather then a property. You would reference it somewhere else like var someString = Foo.HelloWorld(); https://propertyingurugram.in/new-gurgaon-the-most-promising-micro-market-of-the-millennium-city/