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I am developing a "smart program" of sorts in the sense that there are many client programs and one server. At the moment, the clients are communicating with the server using a NetworkStream. My goal in this software is to have multiple "module pairs" residing on the server that the clients can choose to run at their discretion.
This is the way that I have the framework for this suite set out right now:
- Client opens communication with server using NetworkStream
- Client requests a list of all installed modules on the server
- Client chooses a module to run. At this time the server launches its own executable for that module (i.e. something that would interface with the hardware sitting on the server to take test data). Additionally, the server sends the client an executable (down the NetworkStream) that it can use to view that data.
An example of this would be a module pair that displays outside temperature. The server would have the thermometer hooked into a port, and the server half of this module pair would just take readings every so often. The client half of this module pair would display the temperature reading and various options, and it would communicate with the server half of the module pair. I imagine that it would display a form to accomplish this, and I would like to have that form as a MDI child of the main application window.
I already have a method for the client and server halves of the module pair to communicate, so this does not concern me at the moment. However, I've detailed it here if it helps or if it piques your curiosity.  The client and server (applications) expose a class conforming to the Stream interface, but this class just tags the communication with an ID and sends it across the common NetworkStream. The receiver reads the ID and forwards the data packet to the correct Stream. In other words, it's just like the client and server module halves have their own dedicated Stream, but in reality it's all being sent through one already established NetworkStream.
Ok, so now my actual question. I *don't* know how to get the client module half from the server's repository to the client itself. My original plan called for simply sending the executable itself and launching it client-side, but this doesn't take into account things like dependencies. Is there any way for me to transport a fully self-contained assembly to the client for it to execute? Am I making things overly complicated? Perhaps there's a much better way to do this that I'm not thinking of.
I'm using Visual Studio .NET (.NET 1.0). Any help or suggestions in this matter would be greatly appreciated. Thanks!
~ Levi
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LeviB wrote:
Is there any way for me to transport a fully self-contained assembly to the client for it to execute?
Hi,
Why not prepare ZIP archives on the server which contain all the neccessary modules for running the "client half" on the client, and send them instead? Just unzip on the client to a folder per "client module half" and run.
Does this make sense in your project?
Btw, I really liked your app description
Regards,
Serge (Logic Software, Easy Projects .NET site)
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Yeah, I thought about just zipping it up and letting it go, but that would require the people who write the modules to make a list of all necessary assemblies beforehand. I was looking for something more along the lines of the server determining which files are required at runtime, then sending the entire dependency tree down the stream until the client can reconstruct everything.
Thanks for the response! 
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Hi again,
Have you found a solution yet? If not, there is one more hint:
Use Assembly.GetReferencedAssemblies() method for determining all the neccessary assemblies for your application. It returns an array of AssemblyNames.
Regards,
Serge (Logic Software, Easy Projects .NET site)
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Hi all,
is dynamic loading of appDomains also work in compact framework .net ?
I have run example in dynamic loading in .net framework,
but since compact framework dont have AppDomainSetup Class,
so what can I do ?
The code in dynamic loading in .net framework is in
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dncscol/html/csharp05162002.asp
but when the port the code to compact framework, the code doesn't work coz AppDomainSetup Class is missing in .net CF.
Can anyone point to sample code or articles on it ?
Thanks
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Can somebody point me on an info, how to integrate smart tags into a visual studio editor?
Thanks,
Boni
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Hi, this ia a simple question:
I want to popup a window (a Form derived class) and leave the Focus where it is. When I call "Show" on a Form with no parent, this Form gets the Focus and removes the Focus from the currently focussed Form, which results in the activ caption of my application becomming inactive. There is no problem, when the Form is a child window of some other Form or Control in my application, but then it is bound to the ClientRect of its parent. But I need it to show anywhere. The ToolTip class exactly behaves like I want my Form to behave, so there must be a way. I try to set the Focus back to where it was, but I cannot find out where it was and even if I could it makes the caption flicker.
Any Ideas?
Gerhard
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I’m dabbling with some of .Nets reflection features and am running into the following problem…
I have the following code,
Assembly myAssembly = AppDomain.CurrentDomain.Load("MyAssembly");<br />
<br />
Type myType = localDataAssm.GetType("MyNameSpace.MyType", true, true);<br />
<br />
Object myObjectInstance = Activator.CreateInstance(myType);<br />
<br />
myType.InvokeMember("MyProperty", System.Reflection.BindingFlags.SetProperty , null, myObjectInstance, new object[] {"blah"});
The InvokeMember step fails with “Member Not Found”, even though the said property does indeed exist.
This seems to be straight forward to me so what am I missing??
Woke up this morning...and got myself a blog
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Some things to check:
1) Is your property ReadOnly?
2) Is is private?
3) What does the QuckWatch window say when you open it for "myObjectInstance" ?
Regards,
Serge (Logic Software, Easy Projects .NET site)
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Hi Serge, thanks for replying. The property is not readonly or private, it looks like this...
public string MyProperty<br />
{<br />
get<br />
{<br />
return _myPropertyValue;<br />
}<br />
set<br />
{<br />
_myPropertyValue = value;<br />
}<br />
}
However, the quickwatch window gives me what I expect to see. All the fields and properties are initialized to null or 0 (strings and ints)
Woke up this morning...and got myself a blog
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Hi again,
Noticed one thing - you get a reference to the assembly to the var called "myAssembly" but you get a particular type with the following line (localDataAssm):
Type myType = localDataAssm.GetType("MyNameSpace.MyType”, true, true);
Object myObjectInstance = Activator.CreateInstance(myType);
I'll give an example on how I instantiate objects via Reflection:
<br />
' persistedType should be a full type name, e.g. "MyNamespace.MyClass"<br />
function myCreateObject(persistedType as string)<br />
return AppDomain.CurrentDomain.CreateInstanceAndUnwrap("HereGoesAssemblyFriendlyName", persistedType)<br />
end function<br />
Regards,
Serge (Logic Software, Easy Projects .NET site)
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Thanks Serge, I didn't know about that particular method. In any case, it turns out I wasn't casting my parameter to the correct type and that was the problem.
Thanks for your help Serge, I appreciate it
Woke up this morning...and got myself a blog
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I'm trying to use ExecuteCommand method of
System.ServiceProcess.ServiceController in my C# service controller app to
make a custom call to my service. I'm getting this exception and my service
never gets my custom message code? What's wrong?
Permissions?
Can ServiceControllerPermission  help somehow? I'm lost a little. 
Thanks a lot!
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I would like to use Reflection to retreve the method in the dll.
Is the compact framework support it?
Because it throw an exception of with this message:
"An unhandled exception of type 'System.NotSupportedException' occurred in mscorlib.dll
Additional information: NotSupportedException"
with executing this code:
// loading a assembly
Assembly assembly = Assembly.LoadFrom("\\Program Files\\addintest\\calculate.dll");
// Invoking a method which is called "sum"
"foreach (Type type in assembly.GetTypes ())
{
object ibaseObject = Activator.CreateInstance (type);
object[] arguments = new object [] {10, 17.11};
object result = type.InvokeMember ("sum",
BindingFlags.Default,
null,
ibaseObject,
arguments);
this.textBox1.Text = result.ToString();
}"
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Hi,
How do I get the installation path that the user selects while installing ?
If I had to copy a specific file from a folder in the local machine under the path where the application is installed , How do I do it ?(for eg : if I have a file named aaaa.dll which is tend to change frequently in the same folder as I have the setup.exe , if the installation path selected is C: and I have created 2 folders bin & data under it using File system editor in setup .How can I copy aaaa.dll to bin & data folder at runtime).
Thankx in advance
Priya
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You already asked this and it was answered. Please refer to your previous post for replies.
Microsoft MVP, Visual C#
My Articles
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Hi,
I recently encountered an installer which checks if the .NET Framework is installed on the target PC before installing the application itself. If the .NET Framework is not installed, it automatically installs the .NET Framework.
Any idea how this was done? I assume that the "Setup Project" was used for this because the application was created using MS Visual Studio .NET.
also:
How can I call a DOS command after the installer copies the files onto the installation directory?
For example:
After copying the files ("Copying Files: 100%"), can I call the executable "CABARC.exe" to extract some Cabinet (*.cab) files which were copied on the installation directory?
Thanks and God Bless.
Rafferty 
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No, VS.NET's setup project does not do this. You have to use a bootstrapper (an executable that performs certain checks - like checking for a particular version of the .NET Framework - before starting another setup, like the Windows Installer package created by VS.NET).
Microsoft does already have a solution for this. Read Creating a Single Setup Project to Install a .NET Framework Application and Dotnetfx.exe[^] in the .NET Developers Guide for more information.
There are also a couple bootstrappers that users have written here on CodeProject. One in particular can also install other components like MDAC. Just trying searching CodeProject if you're interested.
Microsoft MVP, Visual C#
My Articles
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Can you give me more information about this bootstrapper?
From what I understood, the bootstrapper is the Setup.exe included (when you build the Setup Project) along with the ProjectSetup.msi. And that the bootstrapper is configured by modifying the Settings.ini correct? 
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Yes, it's all discussed in the link I gave you. It's pretty straight forward.
Microsoft MVP, Visual C#
My Articles
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For .NET Remoting in .NET 1.1, there were some changes made that could lead to the problems you're seeing. Read Automatic Deserialization in .NET Remoting[^] for more information.
Also, while it's typically not needed, you may need to add a URL membership condition (use -url for caspol.exe, or select Url in the drop-down if using the Microsoft .NET Framework Configuration MMC snap-in) with the necessary permissions.
If either possibility does not prove effective, please provide the exception type and message, otherwise it's practically impossible to accurately determine the problem.
Microsoft MVP, Visual C#
My Articles
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I have a COM component that exposes a collection class. When I try to iterate the collection via interop using the c#.net code below, I get "QI for IEnumVARIANT failed on the unmanaged server." on the foreach line. Is my code correct? It compiles without problems but fails at runtime. The result count returned, however is correct.
ZyDocuments ZyDocs; // IEnumerable
ZyDocs = ZySearch.GetResults();
TextBox1.Text = "Result count: " + ZyDocs.Count;
foreach( ZyDocument z in ZyDocs)
ResultList.Items.Add( z.FileName );
Any ideas what this error means?
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