Hwo do I instrantiate a object

[Sparmar2000]

Hi,
This might sound like a unusual question, but I would like to be able to
read a string from a XML stream and use this string at runtime to be able to
instantiate a 'new' object.

For example:
dim strObj as string = "ObjectA" 'This will be read from XML file
dim obj as new ObjectA 'Next time it could be ObjectB so I need to 'new
ObjectB'

Any help will be great.
Thanks in advance.

Regards.

[Jon Skeet [C# MVP]]

Sparmar2000 <Sp*********@discussions.microsoft.com> wrote:

This might sound like a unusual question, but I would like to be able to
read a string from a XML stream and use this string at runtime to be able to
instantiate a 'new' object.

For example:
dim strObj as string = "ObjectA" 'This will be read from XML file
dim obj as new ObjectA 'Next time it could be ObjectB so I need to 'new
ObjectB'

Have a look at Activator.CreateInstance and Type.GetType. You could
also use an XmlSerializer to make life easier for yourself :)

--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too

[Sparmar2000]

Jon,
Thaks a lot for your quick response. I am familier with CreateInstance, and
also GetType, but can you please point me in the right direction with
XMLSerializer - perhaps with an example.

Thanks in advance.
Regards
Suresh

P.S. I will look on the web for example and papers on the subject as well as
soon as I have finished this post.
"Jon Skeet [C# MVP]" wrote:

Sparmar2000 <Sp*********@discussions.microsoft.com> wrote:

This might sound like a unusual question, but I would like to be able to
read a string from a XML stream and use this string at runtime to be able to
instantiate a 'new' object.

For example:
dim strObj as string = "ObjectA" 'This will be read from XML file
dim obj as new ObjectA 'Next time it could be ObjectB so I need to 'new
ObjectB'

Have a look at Activator.CreateInstance and Type.GetType. You could
also use an XmlSerializer to make life easier for yourself :)

--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too

[Jon Skeet [C# MVP]]

Sparmar2000 <Sp*********@discussions.microsoft.com> wrote:

Thaks a lot for your quick response. I am familier with CreateInstance, and
also GetType, but can you please point me in the right direction with
XMLSerializer - perhaps with an example.
Well, the best thing to do is look in MSDN for an example. To be
honest, I hadn't used XmlSerializer before last week, but it seems to
be pretty easy to do. If you look at the examples in the XmlSerializer
constructor page, and the Serialize/Deserialize methods, it should make
it reasonably clear. Let me know if there's anything in particular you
don't understand.
P.S. I will look on the web for example and papers on the subject as well as
soon as I have finished this post.

Goodo :)

--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too

[Sparmar2000]

Jon,
Just had a look at examples after searching the web - and you are right, it
seems pretty stright forward and clear.

Thanks a lot for your help.
Regards.
Suresh....

"Jon Skeet [C# MVP]" wrote:

Sparmar2000 <Sp*********@discussions.microsoft.com> wrote:

Thaks a lot for your quick response. I am familier with CreateInstance, and
also GetType, but can you please point me in the right direction with
XMLSerializer - perhaps with an example.

Well, the best thing to do is look in MSDN for an example. To be
honest, I hadn't used XmlSerializer before last week, but it seems to
be pretty easy to do. If you look at the examples in the XmlSerializer
constructor page, and the Serialize/Deserialize methods, it should make
it reasonably clear. Let me know if there's anything in particular you
don't understand.

P.S. I will look on the web for example and papers on the subject as well as
soon as I have finished this post.

Goodo :)

--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too