Failing to update my Data

Question

Hello guys

I'm a novice C# developer

I'm having a problem adding data in the database.

I'm sending code to be helped finding out where I have made a mistake 

Answer 1

'this' is Pointer not operator ..

by operator overloading mechanism you can overload operators only not the pointers


Here is list of operator that is over loadable ...

+	-	*	/	%	^	&	|	~
!	,	=	<	>	<=	>=	++	--
<<	>>	==	!=	&&	||	+=	-=	/=
%=	^=	&=	|=	*=	<<=	>>=	[]	()
->	->*	new	new[]	delete	delete[]