CSharp WITH?

as I understood you are asking about like is there anything if we want to use object as long time and we can access it with just .
is it your question ?

What WITH does in Delphi is provides a shortcut way of referencing the Object in the With Object do bit. The advantage is that a clutch of 

Object.PropertyA:=x;

Object.MethodA(Param1,Param2...)

y:=Object.PropertyB;

can be replaced with 

with Object do

begin

   PropertyA:=x;

   MethodA(Param1,Param2...);

  y:=PropertyB;

end;

This makes for more compact code that is also less liable to error.