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I have a remoting app that works fine when executed from a local hard drive, but will give "This assembly does not allow partially trusted callers" exception when executed from a network drive. The remoting app is used for transfering files. The code for server, shared assembly, and client:
<br />
<br />
using System;<br />
using System.Collections;<br />
using System.Collections.Generic;<br />
using System.Text;<br />
using System.Runtime.Remoting;<br />
using System.Runtime.Remoting.Channels;<br />
using System.Runtime.Remoting.Channels.Http;<br />
using System.IO;<br />
<br />
namespace RemotingTest<br />
{<br />
class Program<br />
{<br />
static void Main(string[] args)<br />
{<br />
IDictionary properties = new Hashtable();<br />
<br />
SoapClientFormatterSinkProvider clientSinkProvider = new SoapClientFormatterSinkProvider();<br />
SoapServerFormatterSinkProvider serverSinkProvider = new SoapServerFormatterSinkProvider();<br />
<br />
serverSinkProvider.TypeFilterLevel =<br />
System.Runtime.Serialization.Formatters.TypeFilterLevel.Full;<br />
<br />
properties["name"] = "";<br />
properties["port"] = 0;<br />
properties["typeFilterLevel"] = "Full";<br />
<br />
HttpChannel commChannel = new HttpChannel(properties, clientSinkProvider, serverSinkProvider);<br />
<br />
ChannelServices.RegisterChannel(commChannel, false);<br />
<br />
RemotingConfiguration.RegisterWellKnownClientType(<br />
typeof(ServerInterface),<br />
"http://igor.no-ip.ca:1024/Server");
<br />
ServerInterface server = new ServerInterface();<br />
<br />
string text = "";<br />
<br />
while((text = Console.ReadLine()) != "Quit")<br />
{<br />
Console.WriteLine(server.ShowText("testing string"));<br />
Console.WriteLine(server.ShowFileInfo(text).Name);<br />
}<br />
<br />
Console.Read();<br />
}<br />
}<br />
}<br />
<br />
<br />
<br />
<br />
using System;<br />
using System.Collections.Generic;<br />
using System.Text;<br />
using System.IO;<br />
<br />
namespace RemotingTest<br />
{<br />
public class ServerInterface: MarshalByRefObject<br />
{<br />
public FileInfo ShowFileInfo(string filename)<br />
{<br />
Console.WriteLine("Filename " + filename + " requested");<br />
<br />
return new FileInfo(filename);<br />
}<br />
<br />
public string ShowText(string text)<br />
{<br />
Console.WriteLine(text);<br />
<br />
return "\"" + text + "\" show on the server.";<br />
}<br />
}<br />
}<br />
<br />
<br />
<br />
<br />
using System;<br />
using System.Collections;<br />
using System.Collections.Generic;<br />
using System.Text;<br />
using System.Runtime.Remoting;<br />
using System.Runtime.Remoting.Channels;<br />
using System.Runtime.Remoting.Channels.Http;<br />
<br />
namespace RemotingTest<br />
{<br />
class Program<br />
{<br />
static void Main(string[] args)<br />
{<br />
IDictionary properties = new Hashtable();<br />
<br />
SoapServerFormatterSinkProvider serverSinkProvider = new SoapServerFormatterSinkProvider();<br />
<br />
serverSinkProvider.TypeFilterLevel =<br />
System.Runtime.Serialization.Formatters.TypeFilterLevel.Full;<br />
<br />
properties["name"] = "";<br />
properties["port"] = 1024;<br />
properties["typeFilterLevel"] = "Full";<br />
properties["machineName"] = "igor.no-ip.ca";
<br />
HttpChannel commChannel = new HttpChannel(properties, null, serverSinkProvider);<br />
<br />
ChannelServices.RegisterChannel(commChannel, false);<br />
<br />
RemotingConfiguration.RegisterWellKnownServiceType(<br />
typeof(ServerInterface),<br />
"Server", WellKnownObjectMode.SingleCall);<br />
<br />
Console.Read();<br />
}<br />
}<br />
}<br />
Please help.
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If you want your application to allow partially trusted callers, go into AssemblyInfo.cs (typically auto-generated in the Properties folder of your solution) and add the following line:
[assembly: System.Security.AllowPartiallyTrustedCallers]
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hey all, i'm sure this is a dumb question:
but...
How do I create / access / modify properties that are available to all classes of my solution?
iow, I have a main namespace, and multiple forms that are all separate classes/.dlls.
I need to beable to access the properties of the main form throughout the rest of the application, regardless of whether or not the sub classes are instaniated yet.
So..
ClassA(mainFrm) calls ClassB(subUsrCrtl1) which does some work then calls ClassC(subUsrCtrl2) which displays extended info from the work done in ClassB. Then ClassA can call ClassD(E,F,G,etc)(subUsrCrtl3(,4,5,6,etc)) who make other information available based on the work done in ClassB. Many of the classes that are available are not used everytime, so they aren't instantiated yet.
I need to beable to retrieve data from the work that is completed in ClassB and use that data throughout all available classes.
Currently I'm only able to access that data in a class to class relationship where I end up with either old or null values becuase i'm having to instantiate the required class again from the current class...(i.e. ClassA calls ClassD, ClassD needs data from ClassB, so ClassD instantiates new ClassB but that returns null data...)
hope this make sense, cause i'm lost....
ehlp.... wait i can't even spell help...
string Beautiful;
Beautiful = "ignorant";
label1.Text = "The world is full of " + Beautiful +" people.";
Why is common sense such an un-common comodity?
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If you want values to be used across different instances it is better to make those properties as static members of the class and access them from the class scope.
A better approach would be to take out the information you want to make available across the application and put them into one class. Make a static instance of that class to use across the other classes.
--------------------------------------------------
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Ok, I know that this is something stupid... but I'm trying to write my first project in C#. Unfortunately I have only VS 2005 (my friend is using Express Ed).
The lab machine that project must work on have .NET 1.1
Is there any way to set VS to compile my project with .NET 1.1
I want to be sure that what I'm using will be working on machine with .NET 1.1 and without .NET 2.0
Please give some help about that, If this is stupis question then fill free to write that (along with explanation).
I need to finish the project fast... thats way I can't afford to search this information or to actually test my app on machine with .NET 1.1
Thanks for any help
best regards,
Slawek
PS. link to MSDN page will be great 
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http://msdn.microsoft.com/vstudio/downloads/tools/msbee/default.aspx
string Beautiful;
Beautiful = "ignorant";
label1.Text = "The world is full of " + Beautiful +" people.";
Why is common sense such an un-common comodity?
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Im trying to read out an xml file which has several files inside like this:
<File Name="Luc.JPG" Src="50000000.000"><br />
- <MetaInfo><br />
<MetaKey Name="vti_modifiedby" Value="SR|SCALEHOSTING\scale" /><br />
<MetaKey Name="vti_filesize" Value="IR|384548" /><br />
<MetaKey Name="vti_timecreated" Value="TR|30 Jun 2006 16:30:19 -0000" /><br />
<MetaKey Name="vti_lastheight" Value="IX|1200" /><br />
<MetaKey Name="vti_timelastmodified" Value="TR|30 Jun 2006 16:30:19 -0000" /><br />
<MetaKey Name="vti_lastwidth" Value="IX|1600" /><br />
<MetaKey Name="vti_author" Value="SR|SCALEHOSTING\scale" /><br />
<MetaKey Name="vti_sourcecontrolversion" Value="SR|V1" /><br />
<MetaKey Name="vti_sourcecontrolcookie" Value="SR|fp_internal" /><br />
</MetaInfo><br />
</File>
I have tryed several examples but i simply cant figure it out,
any help appriciated.
Scale.
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You are going to have to be more specific as to what your problem is
only two letters away from being an asset
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Ill try i have a file manifest.xml,
its filled with file entry's an example of a file entry:
<file name="Luc.JPG" src="50000000.000">
- <metainfo>
<metakey name="vti_modifiedby" value="SR|SCALEHOSTING\scale">
<metakey name="vti_filesize" value="IR|384548">
<metakey name="vti_timecreated" value="TR|30 Jun 2006 16:30:19 -0000">
<metakey name="vti_lastheight" value="IX|1200">
<metakey name="vti_timelastmodified" value="TR|30 Jun 2006 16:30:19 -0000">
<metakey name="vti_lastwidth" value="IX|1600">
<metakey name="vti_author" value="SR|SCALEHOSTING\scale">
<metakey name="vti_sourcecontrolversion" value="SR|V1">
<metakey name="vti_sourcecontrolcookie" value="SR|fp_internal">
On disk i have a 500000000.000 file which i need to rename into luc.jpg (the rest aint that important).
But i cant figure out how to read out all the specif lines with
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Scalee wrote: I hope this is beter explained
No
only two letters away from being an asset
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The most simple way i can put it would be:
I have an XML file with allot of lines:
<file name="Luc.JPG" src="50000000.000"> but difference source and file names.
Also allot of other crap.
Now i need to read out that XML file and get all lines that start with
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hi,
i have a read write communication form one port of my pc to another working fine, but i can't send spacial characters like é#§èçà i get a ? on the received side.
does anybody know what i should add to my project?
thx
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Hello
If you are using byte arrays to comunicate with your post, then it should work fine, and the interpretaion is the responsibility of the recipient.
If you are using strings to transfer data to/from your port, then check the Encoding of your string.
One last note... Are you sing .Net 2.0 framework?
Regards ![Rose | [Rose]](https://codeproject.freetls.fastly.net/script/Forums/Images/rose.gif)
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yes i am and i use textbox.text = port.readline() function
so were should i check the encoding?
thx
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Hello
Try this conversion. It's not the best practice but fever got my mind blind. I can't really think of something better at the moment.
textbox.Text = Encoding.UTF32.GetString(Encoding.UTF32.GetBytes(port.ReadLine()));
If it doesn't work, try using other encodings provided in the Encoding class.
Regards
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to bad  non of the encodings work, perhaps i should encode the sended text?
but i'm not sure how i convert the txtbox string to a byte[] or char[]
so i can use: port.writeline(encoding.utf32.getbyte(textbox.text))
thx anyway 
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Hello
To send encoded bytes array...
byte[] MyBuffer = Encoding.UTF8.GetBytes(textBox1.Text);
MyPort.Write(MyBuffer, 0, MyBuffer.Length);
...and reverse the process on the other side.
Regards
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lo, thx for the tip,
but i dont know how to reverse it :s
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no need to bother i found the solution :
public Form1()
{
InitializeComponent();
port.Encoding = System.Text.Encoding.UTF8;
}
and it works!
thx for all the help :p now i can start with databases
grz
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I would just like to run my model past the forum and get some comments, hopefully even start a discussion. Convention tells me that I should not catch exceptions unless absolutely necessary, to recover from something, or to add more information. However, I don't like to have too much diversity and permutations of try-catch blocks etc.
An example is a recent project, with a UI and a class library. The class library exposes two methods used by the UI, and a custom exception class (UpdateException). The library performs database updates that must be rolled back if any is not successfull. Deep inside my classes, I only catch one exception, which masks a real cause of failure, and rethrow adding a description. In the actual update public method though, I catch all exceptions because any exception should cause a rollback. I then throw my UpdateException for the client to catch.
In this way, my client can maintain normal operation after an UpdateException, maybe even try the update again, but respond differently, if at all, to all other exceptions.
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You might want to look at the Enterprise Library Exception Handling Block. Using this will provide consistent handling and give you the ability to easily configure and log exceptions, without changing your code.
only two letters away from being an asset
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I have an am thanks, but I was thinking in a more general manner. I consider some applications a bit small for all that, but then maybe I should put so much thought into their error handling, no?
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How large must an application be before defensive, secure programming techniques are utilized?
only two letters away from being an asset
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Ouch, you are right. Maybe I shouldn't have added the last bit; it was late and I was tired.
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