You seem to know almost nothing about inheritance and object oriented programming. That's why you understand neither the compiler error nor the very good answers you already received.
So, I'll talk to you as to an absolute beginner:
The
Home class
is located in two files: Home.cs and Home.Designer.cs.
In Home.cs you must have a line like this:
public partial class Home : SomeClass
This means that your
Home class
is derived from
SomeClass
.
Now,
SomeClass
is
IDisposable
, i.e. it implements the
IDisposable interface
, i.e it has the
Dispose
method. If it has the
Dispose
method, you may
override
it.
But the issue is that in Home.Designer.cs file, the same line of code (the
class
definition) is only:
public partial class Home
without the
: SomeClass
part it really requires.
So, to be short: Add it there! (You shouldn't have deleted it in the first place)