Conversion Question: C# -> C++ CLI

[karch]

I am beginning to write my first applications with C++/CLI and was wondering
if someone could demonstrate the proper way to convert a sample piece of
code. I just need some help understanding the new syntax for handles and
iterating, etc. Thanks in advance for the help.

SoapFormatter formatter = new SoapFormatter();
byte[] buffer = new byte[dept.Capacity];
MemoryStream stream = new MemoryStream(buffer);

foreach (object o in dept) {
formatter.Serialize(stream, o);
}

[Tomas Restrepo \(MVP\)]

Karch,

I am beginning to write my first applications with C++/CLI and was
wondering if someone could demonstrate the proper way to convert a sample
piece of code. I just need some help understanding the new syntax for
handles and iterating, etc. Thanks in advance for the help.

SoapFormatter formatter = new SoapFormatter();
byte[] buffer = new byte[dept.Capacity];
MemoryStream stream = new MemoryStream(buffer);

foreach (object o in dept) {
formatter.Serialize(stream, o);
}

[not tested]

SoapFormatter^ formatter = gcnew SoapFormatter();
array<Byte>^ buffer = gcnew array<Byte>(dept.Capacity);
MemoryStream^ stream = gcnew MemoryStream(buffer);

for each (Object^ o in dept) {
formatter->Serialize(stream, o);
}
--
Tomas Restrepo
to****@mvps.org
http://www.winterdom.com/

[karch]

Excellent! Worked perfectly, and I'm understanding how the new syntax works
(I think). One more question (I was experimenting while I waited for your
answer).

In this case, dept is an ArrayList:

formatter->Serialize(stream, dept);

but how do I cast dept to an Object^ (which is what the method is
expecting)? This is valid in C#, but having a problem in C++/CLI.

Thanks again.

"Tomas Restrepo (MVP)" <to****@mvps.org> wrote in message
news:eM**************@TK2MSFTNGP12.phx.gbl...

Karch,

I am beginning to write my first applications with C++/CLI and was
wondering if someone could demonstrate the proper way to convert a sample
piece of code. I just need some help understanding the new syntax for
handles and iterating, etc. Thanks in advance for the help.

SoapFormatter formatter = new SoapFormatter();
byte[] buffer = new byte[dept.Capacity];
MemoryStream stream = new MemoryStream(buffer);

foreach (object o in dept) {
formatter.Serialize(stream, o);
}

[not tested]

SoapFormatter^ formatter = gcnew SoapFormatter();
array<Byte>^ buffer = gcnew array<Byte>(dept.Capacity);
MemoryStream^ stream = gcnew MemoryStream(buffer);

for each (Object^ o in dept) {
formatter->Serialize(stream, o);
}
--
Tomas Restrepo
to****@mvps.org
http://www.winterdom.com/

[Tomas Restrepo \(MVP\)]

Karch,

Excellent! Worked perfectly, and I'm understanding how the new syntax
works (I think). One more question (I was experimenting while I waited for
your answer).

In this case, dept is an ArrayList:

formatter->Serialize(stream, dept);

but how do I cast dept to an Object^ (which is what the method is
expecting)? This is valid in C#, but having a problem in C++/CLI.

You shouldn't need to cast, since all objects have an implicit cast to
Object^.
What specific error are you getting?
--
Tomas Restrepo
to****@mvps.org
http://www.winterdom.com/

[karch]

"Cannot convert parameter 2 from 'System::Collections::ArrayList' to
'System::Object^'"

"Tomas Restrepo (MVP)" <to****@mvps.org> wrote in message
news:uF**************@TK2MSFTNGP12.phx.gbl...

Karch,

Excellent! Worked perfectly, and I'm understanding how the new syntax
works (I think). One more question (I was experimenting while I waited
for your answer).

In this case, dept is an ArrayList:

formatter->Serialize(stream, dept);

but how do I cast dept to an Object^ (which is what the method is
expecting)? This is valid in C#, but having a problem in C++/CLI.

You shouldn't need to cast, since all objects have an implicit cast to
Object^.
What specific error are you getting?
--
Tomas Restrepo
to****@mvps.org
http://www.winterdom.com/

[Marcus Heege]

I assume you have done something like this:

ArrayList al;
al.Add(1);
....

gcnew SoapFormatter()->Serialize(al);

This needs some explanation, since you have used a special C++/CLI feature
here: implicitly dereferenced variables. Read my post on the thread "using
C# when adding new feature" from yesterday for more details.

Marcus Heege
www.heege.net
"karch" <no****@spamu.com> wrote in message
news:uf*************@TK2MSFTNGP10.phx.gbl...

"Cannot convert parameter 2 from 'System::Collections::ArrayList' to
'System::Object^'"

"Tomas Restrepo (MVP)" <to****@mvps.org> wrote in message
news:uF**************@TK2MSFTNGP12.phx.gbl...

Karch,

Excellent! Worked perfectly, and I'm understanding how the new syntax
works (I think). One more question (I was experimenting while I waited
for your answer).

In this case, dept is an ArrayList:

formatter->Serialize(stream, dept);

but how do I cast dept to an Object^ (which is what the method is
expecting)? This is valid in C#, but having a problem in C++/CLI.

You shouldn't need to cast, since all objects have an implicit cast to
Object^.
What specific error are you getting?
--
Tomas Restrepo
to****@mvps.org
http://www.winterdom.com/

[David Anton]

If you're doing much conversion from C# to C++/CLI, download the demo of our
C# to C++ converter (www.tangiblesoftwaresolutions.com).

--
David Anton
www.tangiblesoftwaresolutions.com
Instant C#: VB.NET to C# Converter
Instant VB: C# to VB.NET Converter
Instant C++: C# to C++ Converter
Instant J#: VB.NET to J# Converter

"karch" wrote:

I am beginning to write my first applications with C++/CLI and was wondering
if someone could demonstrate the proper way to convert a sample piece of
code. I just need some help understanding the new syntax for handles and
iterating, etc. Thanks in advance for the help.

SoapFormatter formatter = new SoapFormatter();
byte[] buffer = new byte[dept.Capacity];
MemoryStream stream = new MemoryStream(buffer);

foreach (object o in dept) {
formatter.Serialize(stream, o);
}