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I could be wrong, but it looks as if you are trying to access system information about the computer, you just want to do this in C#, am I right? If so there is an article on the WMI (Windows Management Interface) that will show you how to do this. I know this isn't the exact answer to your question, but it should hopefully help. Interrogating Systems with WMI
HTH
Nick Parker
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Thank you for your reply,
You're right in gussing I want to access system information. I want to get the number of CPU on the machine, can I do that using WMI?
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Hello,
I have a problem, i work with web pages, i want to fill labels in one webForm from the information of TextBox in another webForm , how can I do it?
thanks, sharon.
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sharon wrote:
I have a problem, i work with web pages, i want to fill labels in one webForm from the information of TextBox in another webForm , how can I do it?
Usually you would store the data in a session variable if you are not calling the second form from the first and there would possibly be other pages interacted with between them. You could pass the values directly if you did call the second form from the first.
Rocky Moore
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I'm doing a dead-simple text binding:
this._ctlTitle.DataBindings.Add( "Text", this._movie, "Title2" );
This populates the control just fine. But when I change the text in the control, the binding doesn't seem to care. If I get the binding from the DataBindings collection and look at it in the debugger, the private field, "modified", is false. If I set it to true in the debugger and call the PropertyManager method EndCurrentEdit, I see the new value persisted to the data source.
So how do I get that modified field set to true?
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Hey all,
I'm working with the DirectX 9 library, specifically the Managed DirectX part. I'm trying to avoid using their GraphicsForm class as the main render target and such, but I am having a problem with making my Windows Form tell me when it is idle. So here's my question:
How can I have a System.Windows.Forms.Form object call a function when it is idle? The GraphicsForm class has a nice message handler for doing that, but I need to do it using the regular forms. Any way to do it would be much appreciated. Thanks!
Andy Luedke
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Use the Application.Idle event.
It looks like you're a beta tester for DX9 (since I don't see it listed any where for download); MS should have a private forum setup for you to use for asking questions relating to it.
James
Simplicity Rules!
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Just like the MFC source code
I'm amumu, and you?
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Yes, you need to use Anakrino
You can download in here
htpp://www.saurik.com
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Rama Krishna wrote:
Yes, you need to use Anakrino
What does Anakrino do?
Disassemble?
Nish
Regards,
Nish
Native CPian.
Born and brought up on CP.
With the CP blood in him.
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Nish - Native CPian wrote:
What does Anakrino do?
Disassemble?
Use it and see
I use it so often that I don't see MSDN docs anymore. I can't survive without it.
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Rama Krishna wrote:
Use it and see
I use it so often that I don't see MSDN docs anymore. I can't survive without it.
Hello Rama
It is an interesting tool indeed. But I really don;t undersyand why you say that it is a replacement for MSDN 
Nish
p.s. pardon the typo errors please. I cant be bothered correcting them 
Regards,
Nish
Native CPian.
Born and brought up on CP.
With the CP blood in him.
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Nish - Native CPian wrote:
But I really don;t undersyand why you say that it is a replacement for MSDN
I only rarely look at docs for a description of what a class/method/property does anymore. I just see Anakrino. This was the way i did with MFC and esp. ATL.
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If you want to get real down and dirty; you can look at the source to Rotor which is the Shared Source version of .NET meant for FreeBSD.
The source for .NET on Windows machines IS different; though differences aren't pointed out.
James
Simplicity Rules!
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hello,
to get information from the dll ie. the methods,types, parameters i use Reflection. at certain times i have to delete this dll which is usually not a problem. the problem is once i've reloaded a dll and performed some reflection on it, that when i go to delete the dll using FileInfo.Delete() i get an Access is Denied exception. so its as if the dll is still being used or a thread that's still alive or.... this one's got me stumped. maybe there's a better way of reflecting the information from the dll or something.
here's the code starting with the Reflection: pretty straight forward. so i get the dll pass it into an Assembly and there you go. for what i need to do i think its about the easiest least overhead way.
string tempPath = Path.GetTempPath();//Gets the path to the MS tempdir
string strMSTempPath = tempPath.Replace(@"\", @"\\");
string strTempName = strNameSpace + ".dll";
Assembly ass = Assembly.LoadFrom(strMSTempPath + strTempName);
string strObject = strNameSpace + "." + strServiceName;
Type typeDynProxy = ass.GetType(strObject);
MethodInfo[] methodArray = typeDynProxy.GetMethods(BindingFlags.Public|BindingFlags.Instance);
this is how i delete the dll from the directory. nothing fancy.
string tempPath = Path.GetTempPath();
string strTempName = tempDeleteDLL + ".dll";
FileInfo fileInfo = new FileInfo(tempPath + strTempName);
fileInfo.Delete();
throws the Exeption as soon as it executes Delete():
"Access to the Path C:\..\..\ is denied."
normally i can delete the dll. just not after i run the Reflection code above.
any ideas or help would be great.
thanks
Orion
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The problem is that once an assembly is loaded into an AppDomain the assembly isn't unloaded until the AppDomain is unloaded.
An AppDomain is a basic unit of execution; its similar to a process in Win32; but in .NET a single process can host multiple AppDomains.
So what you need to do is create a new AppDomain, then load the assembly into that; the tricky part is you can't have any reference of that assembly in your current AppDomain, otherwise the assembly gets loaded into it too.
I don't have any code laying around for that; but it is something I plan on looking into when I get back from my little vacation
James
Simplicity Rules!
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Thanks James, you guys and this site rules..!!
i figured it was a deeper problem. so bear with me i just need to get this straight before i dive in here. its the reference part that's got me. of course  )) if i get this figured out i'll send you the code.
outside of the dll issue, where does the one AppDomain start and end? if i understand it right an application running is made up of many AppDomains (ie. WinForms, Projects..), but the AppDomains are referencing each other within a singular process. OR, is an Application all being combined into a singular AppDomain regardless of whether i create a New AppDomain or not?
the way i have it right now i've got a Windows.Form which is referencing a separate class which obviously is doing all the work, and that's all part of the main App running. so, and correct me if i'm wrong, by your explanation, that class and everything it does gets added to the "Calling" AppDomain (WinForm), and by that logic all WinForms/Components what ever, ends up being combined into a singular AppDomain. Do i have that right?? Or do they remain separate at least to some degree.
so i'm wondering to what degree i need to keep this New AppDomain "isolated".
in the problem i'm having i'm not instantiating the dll or invoking methods, classes or anything like that. i purely need some info from it (it will be later but by that pt i won't have to worry about deleting it).
hope i made sense here.. ))
Thanks.
Orion
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Check out my latest column on AppDomains and dynamic loading:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dncscol/html/csharp05162002.asp
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Thanks Eric, I will..
Orion
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How to add image besides each item in ComboBox?
And how to load 2 columns from a table (id and name for example) as one item in ComboBox? (id will not show,Name shows there, but after select, pass id as parameter)
Thanks.
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Hi,
I've seen a few Server/Client programs here. Many of the server programs that can handle many connections at the same use asynchronous calls. I just can't figure out why this approach is popular in C#. Why most people use it instead of threads? Any advantages? If I want to write a ftp server that
can take control of each connection(e.g. D/L speed control, kill connection on user's demand), are asynchronous calls recommended in this case?
Is the underlying mechanism of asychronous calls also use threading things?
Thanks in advance
A beginner
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When there are too many connections, there are too many threads and if each connection requires moderate to heavy processing, you'll bring the machine down in no time
Nish
Regards,
Nish
Native CPian.
Born and brought up on CP.
With the CP blood in him.
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The "NT family" of Windows (ie NT, Win2K, WinXP) supports a feature known as "I/O completion ports". In this feature, the O/S calls back to the user code when an I/O operation completes. In .NET, the built-in async functions use this support.
That means you can be waiting for 100 different read operations to finish using completion ports without a lot of overhead, where if you used threads, you'd need to have 100 of them running at the same time, and that takes a lot more resources.
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Eric Gunnerson (msft) wrote:
In .NET, the built-in async functions use this support.
Wow! That's cool info Eric Gunnerson. Thanks for that. It amazes me also to see you spot just the right threads here on CP.
Thanks, once again,
Nish
Regards,
Nish
Native CPian.
Born and brought up on CP.
With the CP blood in him.
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