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SystemInformation has some information,but not OS version.If you didn't find it,you can use win32 API,GetVersion
Mazy
"And the carpet needs a haircut, and the spotlight looks like a prison break
And the telephone's out of cigarettes, and the balcony is on the make
And the piano has been drinking, the piano has been drinking...not me...not me-Tom Waits
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Hi,
thanks a lot. Environment was the correct answer. MSDN didn't spit it our and I'm really getting tired of the huge MSDN Lib where you just can't find anything ;(.
Once more, thanks for the sound advice.
Matthias
In theory, there is no difference between theory and practice. In practice, however, there is.
(unknown author)
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Hi,
How can I call my existing MFC based Dll (developed in VC 6) functions/ classes from ATL Web service/ Managed C++ Web service?
Atin.
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:-OI need to make the datetimepicker control in my project be flatten, but I don't know how to do it. Pls help me find the solution or give me the address to find this! Thanks in advance ![Rose | [Rose]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/rose.gif)
ChanPhuong
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Can anybody tell me how to find out if a Culture got by CultureInfo.CurrentCulture has Right-To-Left or Left-To-Right
reading order?
I just can't find a member for that purpose...
Thanx
John
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I'm working on a distributed application, and I would like to only have the WinUI on the client machine, and keep DataAccess, BusinessRules, BusinessFacade and so forth, on a server. Is this posible? If so, how? Does anyone know of any articles related to this?
this program will be used from anywhere between three and three hundred people at a time.
excuse any typing mistakes, its 4am 
~Dan
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Dan Smith wrote:
Is this posible?
Yes
Dan Smith wrote:
If so, how?
There are several different ways of doing this and what you use depends on your requirements.
The easiest way is to expose a webservice on your server and have the WinUI use it. There is a section on webservices which may enlighten you on how to create them, if you're using VS.NET they're easy to use as well (right click on the WinUI project and choose Add Web Reference, then point the mini-browser to your deployed web service).
By default web services are stateless, but it should be possible to use the ASP.NET Session stuff to persist bits and pieces.
Your next option is to use Remoting. Remoting is a bit harder to put together and use, but it is more powerful as well. Nish wrote a good article on the basics of remoting. http://www.codeproject.com/csharp/absoluteremoting.asp[^] You may also want to check out the sample chapter from Ingo Rammer's book for a bit more indepth look Advanced .NET Remoting[^].
Good luck,
James
- out of order -
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Start with building a ASP.NET Web Service. This class will be your Facade, and will invoke your business rules, and data access layers. If your architecture supports .NET code on both client and server, you can pass managed DataSets across the boundry, which will make both sides easier to write. From what I understand, you UI will be a System.Windows.Forms application. You add a web-reference to your ASP.NET Web Service to that project, and invoking methods on the facade will be a breeze.
For example, the UI want's to start with a list of customers. It calls a method on the facade: GetCustomerList( string territory ) which returns a DataSet. Behind the facade, you've got business rules that check if the user is authorized for that territory, etc. Once validated, a data access layer pulls a limited set of fields needed for this list out of the databse, limited to the specified territory, and returns it as a DataSet. This list might have just Customer Name, City, State, ZIP and ID.
Back on the client, you can drop that dataset write into a grid control to format, scroll, etc. Without round-tripping, you can sort of any of the fields. Once the user selects a customer, you call another facade method: GetCustomerDetails( string customerID ) which also returns a DataSet. If changes are made, call facade method UpdateCustomerDetails( DataSet details ).
Hope that gets you started...
Burt Harris
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Burt Harris (msft) wrote:
From what I understand, you UI will be a System.Windows.Forms application. You add a web-reference to your ASP.NET Web Service to that project, and invoking methods on the facade will be a breeze.
Absolutely, here is a plug for my most recent article that cover how to do this: Cross Language Web Service Implementation[^], which includes a Windows Forms Web Service consumer application.
Nick Parker
Not everything that can be counted counts, and not everything that counts can be counted. - Albert Einstein
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I have a MSI installer for my system. It's running smoothly on several machines, but in one specific machine, it isn't working. The MSI installs several ServicedComponents with custom install actions. Some of the ServicedComponents call COM components and apparently everything is fine and registered ok. But in this specific machine, the installer starts and goes until it shows the following error:
Install Error: Failed to generate type library 'c:\program files\crivo\drivers\bin\DriverBalanceamento.tlb'
for 'DriverBalanceamento, Version=1.0.1069.31940, Culture=neutral, PublicKeyToken=b8bf1c10d7a7a24d'.
Install Error: There is no MTS object context
I see dumb people
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For future reference, if someone have the problem:
What I needed to do to solve it was:
(the order HAS to be this: )
1. uninstall the .MSI
2. uninstall the .NET framework
3. reinstall the .NET framework
4. apply .NET framework SP2 (don't know if it's required, but I did this way just to be safe)
5. reinstall the .MSI
The tricky part was (1) to uninstall the .MSI, since it was giving the same message when uninstalling. So, the solution was to use a .MSI without the custom actions which install the COM+ components, mantaining the MSI version number and product code. Use this MSI to remove the faulty application. The rest seems necessary to rebuild the GAC again.
I see dumb people
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After install .Net framework, the programme also can't run right( mfc70.dll is not include in framework ). is that other components need install?
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I hope you don't believe MFC has anything to do with the .NET run-time.
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I'm trying to get my hands on the beta2 version of the .NET Compact Framework. Unfourtunatly, it is only available with VS.NET 2003 (VS.NET 2002 will not support smart device extentions).
You'd think after spending about $1000 for MSDN Subscription Professional edition, I could at least get a copy of VS.NET 2003 beta. For some reason, MS chose to only make it available to Universal subscribers, not fair! When I signed up for MSDN Pro, I was told I would get access to all beta versions of operating systems, sdks and visual studio.net.
If anyone can comprehend MS's thought process, please help me out.
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$$$$$ is all that matters to M$. And Bill needs some more since he keeps givig BIG$ away to organizations and nations that don't want it....
R
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And giving away BIG$ is a fantastic tax write-off.
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Hi!
There is a need to create a custom run-time form designer under .NET. It
should be pretty similar to the Visual Studio's own designer. Is there any
control providing such functionality? (I tried to pull out smth from Visual
Studio -- no luck).
Could somebody help me?
Thanks!
Regards,
John Wood
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Let's say I have 3 classes.
Class 1 needs to create an instance of Class 2 or Class 3 depending on some evaluation. All three classes reside within the same assembly.
When Activator.CreateInstance() is called does the loaded type get re-jitted even though the caller is in fact the same assembly and has already been jitted?
Just wondering
Any thoughts on this would be appreciated!!!
Jarrod
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JarrodM wrote:
When Activator.CreateInstance() is called does the loaded type get re-jitted even though the caller is in fact the same assembly and has already been jitted?
Unless you run the ngen utility on your assembly, JITting takes place on a method by method basis. So the JIT should only occur once per method.
James
- out of order -
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So each time I call a method for the first time on one of these classes newly instantiated by reflection it will JIT?
Jarrod
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Sorry, I meant to add that bit in but forgot 
This part is tricky for me to word so please accept my apologies before hand.
JITting occurs when one of a few things happen: A method is being run for the first time, the underlying IL of an already JITted method has changed, or in certain circumstances the native code produced by ngen will be ignored (ASP.NET is one case). There are also some Debug/Profiling methods that will perfrom a re-JIT.
Unless you are causing the JIT by running ngen, the native code generated will be tossed out after the Assembly has been unloaded. The native code generated is also AppDomain specific, so if you have two AppDomains each loading the same assembly then each method will be JITted once for each AppDomain.
Now in your case, the JIT will only occur the first time each method is used, regardless of whether the object using that method is created by Reflection or regular code.
James
- out of order -
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I have a strange problem with a custom control (derives from System.Windows.Control). I've added code to the protected OnKeyDown and OnKeyUp methods of my control to handle up/down/left/right keypresses.
The keys work great most of the time. The one case where they do not work is when my control is used with the System.Windows.Forms.ListBox control. The listbox kills the focus on my control, preventing any keypress events from fireing. Sometimes the listbox takes the focus itself, sometimes not.
Any ideas on what the deal is?  Thanks.
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