Thanks for all help. I got this working. The problem was timing problem in the 3rd party dll's. AppA is starting appB in a sandbox and adds overhead (=> timing problem). Because of this timeing problem a exception was throwed before all dll:s were loaded. (difficult to give a precise explanation of a few short lines here)

Create a (console) "server" app in 4.0 that references the 3rd party assembly. Create a connection using "Named Pipes" from your 3.5 app (as "client") to the "server". Start the server and the client, and acccess the 4.0 assembly by the client thru the server. (Or: use message queues; a web service (on the same machine); etc.)

I think the most widely used point for these situation is what you have proposed as 3rd option. Simply Mock your hardware specific assemblies (I don't know how hard that is), this way on a laptop you can test only your code and in the mocks implement whatever functionality you need assuming that "the hardware" works ok. When running the tests on the actual device you can simply remove the mock assemblies and you can also run your tests.

Try to look at this LINQ to CSV library. I briefly explored it and seems it allows to get IEnumerable<T> from *.csv file and then use LINQ against it.

It's looks good, syntax errors aside (missing a closing bracket). Steve

marca292 wrote: number of bytes = ((number of bits)* 7) / 8 It should really be (note the plus sign) number of bytes = ((number of bits) + 7) / 8 to round up any odd bits to a byte boundary. Cheers, Peter Software rusts. Simon Stephenson, ca 1994.

Thanks!!

I use this solution, then it's working.

Have a look at the documentation for CultureInfo[^] and related classes.

I'm confused as to why you're using the UnmanagedFunctionPointerAttribute to get the dll function and then go through all that marshalling mess. Wasn't a simple DllImport enough?

marca292 wrote: are you stupid or? No, how about you? marca292 wrote: ou have no idea how big our application is and how it work. I did not say I did? marca292 wrote: The application stops working ~1/100 sleep resume tests. I have no idea what this is supposed to mean. I must get a clever new signature for 2011.

After a sleep? what sleep? Anyways, the converter will only get called when "State" changes. "State" must be a DP or the view needs to implement INPC.

You'll need to create globalization resource files. There are a number of articles [here] at CodeProject BTW: You'll be doing the support desk a favour if you add a MessageBox notifying "Guest" that they have insufficient permissions to use the application before exiting. Architecture is extensible, code is minimal.

See caspol[^].

Please go through this link: This[^]

The traditional way to approach this would be to use Dependency Injection to inject the appropriate DLL at runtime. The best way to do this is to not hardcode your type references, but rather you would work against interfaces which the concrete classes would implement. There are many benefits to doing this such as creating more testable objects, improving the loose cohesion of the system, etc. I have CDO, it's OCD with the letters in the right order; just as they ruddy well should be Forgive your enemies - it messes with their heads My blog | My articles | MoXAML PowerToys | Onyx

why you create interface??? you no need tthe redefinition of methods another time ( exist in assembly!!) you need juste to invoke method from assembly A. :)

You could probably use a trigger. You can set visibility based on the true/false. [Forum Guidelines]

marca292 wrote: Thanks for your help Ruchard MecCutchan! Maybe you should start with the advanced copy & paste, followed by the introduction to spelling. :laugh: It's time for a new signature.