Introduction - If you have any usage issues, please Google them yourself
		 
SomethingSelected now the value of the DataGrid to bind to a selected state. Select a line of value somethingSelected into true, then all the labels have enabled =  (somethingSelected)  label will be activated, all the labels have enabled =  (! SomethingSelected)  button will be disabled. Bingding label does not necessarily must be a variable source. It can be an expression