System.Windows.Forms.VisualStyles Error.

[tongueless]

Whenever I have "using System.Windows.Forms.VisualStyles" in any
project, VS2005 tells me that "'VisualStyles' does not exist in the
namespace 'System.Windows.Forms.' Any idea what this might be? Thanks.

[tongueless]

Is is possible that .net 2.0 isn't being used? In Eclipse you can pick
which version of Java you want to compile in. Does VS2005 have an
option like this? Thanks.

to********@gmail.com wrote:

Whenever I have "using System.Windows.Forms.VisualStyles" in any
project, VS2005 tells me that "'VisualStyles' does not exist in the
namespace 'System.Windows.Forms.' Any idea what this might be? Thanks.

[Claes Bergefall]

<to********@gmail.com> wrote in message
news:11**********************@c74g2000cwc.googlegr oups.com...

Is is possible that .net 2.0 isn't being used? In Eclipse you can pick
which version of Java you want to compile in. Does VS2005 have an
option like this? Thanks.
No it doesn't. VS 2005 uses .NET 2.0

to********@gmail.com wrote:

Whenever I have "using System.Windows.Forms.VisualStyles" in any
project, VS2005 tells me that "'VisualStyles' does not exist in the
namespace 'System.Windows.Forms.' Any idea what this might be? Thanks.

The problem is exactly what the compiler tells you. VisualStyles does not
exist in System.Windows.Forms. I checked the docs for both 1.1 and 2.0 and
there is no VisualStyles thing anywhere. Where did you find this class (or
whatever it is)?
/claes

[Marc Gravell]

Yes there is; it's a namespace, not a class, and is in 2.0 of
system.windows.forms.dll;

So: there are a few questions:
1: does the project reference windows forms?
2: if it does, does it reference version 2.0?
3: what is the exact line of code that is failing

[Ian Semmel]

Is the next version of VS going to break all existing code ?

Marc Gravell wrote:

Yes there is; it's a namespace, not a class, and is in 2.0 of
system.windows.forms.dll;

So: there are a few questions:
1: does the project reference windows forms?
2: if it does, does it reference version 2.0?
3: what is the exact line of code that is failing

[tongueless]

I removed all the references and added them again. That seems to have
taken care of the VisualStyles error. But now I get this:
http://upload.enetation.co.uk/uploads/0030770376.jpg

I think I'm just tired now and I should just recheck my code with a
clear head. But if you have any suggestions, or know what these new
errors are, please don't hesitate to say. Thanks.
Marc Gravell wrote:

Yes there is; it's a namespace, not a class, and is in 2.0 of
system.windows.forms.dll;

So: there are a few questions:
1: does the project reference windows forms?
2: if it does, does it reference version 2.0?
3: what is the exact line of code that is failing

[Marc Gravell]

Erm... /probably/ no? (not normally, at least... a few rare exceptions)

The new classes and namespaces are precisely that: new. Hence "all existing
code" won't be using them, so most things should compile and run just fine.
If you don't want 'em, don't use 'em. Of course, it will be tricky to
support a single product in 1.1 and 2.0 flavours without /seriously/
fragmenting the code base (or limiting yourself to the 1.1 classes, which
would be a pity), but that's just life.

Did I misunderstand the question?

Marc

[Marc Gravell]

OK; "3" is the clue; I think you have (in the solution) references to both
1.1 and 2.0 versions of windows forms, or perhaps beta and release v2 forms.
"1" and "2" suggest that the code with Main() is referencing 1.1 (normally
this error is because somebody creates a local class called Application, but
the namespace suggests that this isn't the case here).

Very curious that VisualStyles now works, but EnableVisualStyles doesn't; is
this all in the same assembly?

Marc