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first, Thank you =)
I took a look to the link and tried some of the tips that mentioned in there, but did not work for me.
By the way, the project itself seems normal, there aren't any missing visible files, it just won't open. When I double click the ".sln" of the project, it gives the "unable to load blah blah.csproj" error 
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First of all, check that the project file is there and that it's not mangled - open it up in notepad and have a look at it. Compare it to another project for the same version of Visual Studio and do a visual inspection to see if any of the key areas look wrong.
If nothing is obvious, you could try creating a new empty project and then include the files in to it and save that (the project should be for the same platform, e.g. if it's WPF you need the WPF dlls so create an empty WPF project).
"WPF has many lovers. It's a veritable porn star!" - Josh Smith As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.
My blog | My articles | MoXAML PowerToys | Onyx
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Thank you in advance 
I checked the projectName.csproj file, nothing seems wrong.
but something new came up...
When I opened Visual Studio by itself (without indirectly running it by a .sln file) at first, it gave some errors about forms designer tool...etc
after those, I selected new--> project-->C# windows forms project to compare the csproj file, but nothing happened :S
a new project did not created, nothing happened as if I did not select new-Project
wow
it seems like Re-Restore or Re-Install is the only problem :S
"if nothing is obvious, you could try creating a new empty project and then include the files in to it and save that (the project should be for the same platform, e.g. if it's WPF you need the WPF dlls so create an empty WPF project)."
This was my last solution but after this new project creation problem, re-installing seems to be ineviatble
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Strange, but I had seen this before and the solution that worked was the re-installation.
Bad time...
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I can't remember exactly, but it wouldn't surprise me if the installation procedure allows you to fix the install. It's worth taking a look before you uninstall/reinstall.
"WPF has many lovers. It's a veritable porn star!" - Josh Smith As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.
My blog | My articles | MoXAML PowerToys | Onyx
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Hello experts,
since I know that cross-posting is evil, here is just a link to the problem description:
Scan for IP cameras
I'm re-posting it here because in the end, it will get integrated into an application that is completely written in C#. Therefore, I'd prefer doing the camera scan in C# as well.
Ciao,
luker
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And your question is....
SkyWalker
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absent?
missing?
lost in action?
missed?
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In order to set a camera's IP to match my network, I have to connect to that very camera.
And here it comes:
How can I connect to a camera whose IP I don't know?
Ciao,
luker
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I expect devices such as yours to have a factory default IP address.
So if the device is new, read the documentation.
And if it has been used before, restore the factory default.
FWIW: my ADSL modem/router has the factory default IP address printed on the bottom.
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In general, factory defaults are a good way to achieve a well-defined system state.
But in this case, to reset the camera to its defaults, the user needs a connection to that camera. In order to establish a connection, he needs to set the camera's IP address to some value that will work within his network.
I know it's possible to do so because Stemmer Imaging's GigE Vision Configuration Manager does the job very well.
Just a guess: Maybe it's about throwing some broadcast call at the network and listening on a specific UDP port for answers?
Anyone familiar with GigE Vision / Gen<I>Cam?
Ciao,
luker
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To add to Luc's answer, if you don't know the IP address, find it. Have a look at the router it is connected to - most will display a list of all connected devices. Make a list of them, and then disconnect the camera. Refresh the list, and bingo! There are only a few default IP addresses for routers: 192.168.1.1, 192.168.0.1, and 192.168.0.254 are the common ones.
Do note that unless told otherwise, routers do not have to assign static IP addresses - they can apply them dynamically so it may change from day to day.
Normally, the install software for the camera would search for the device and report the IP address if needed.
Did you know:
That by counting the rings on a tree trunk, you can tell how many other trees it has slept with.
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If I understand you correctly, what you are describing is some sort of manual approach. But I need to code something that always works, or at least throws an error message telling the user why it doesnt work.
Ciao,
luker
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Dear All,
I have so many barcode readers which are connected from usb port. I have to differ each other so I need to get device ID of each of them. I think it is possible because I installed and use USBTrace and it gets.
How can we handle it using c#?
Thank you for your concerns.
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Dear Mircea,
First of all, thank you for your concern.
I have just checked the solution and tried but there is something that i do not understand
What should be the values of VID and PID. they are assigned automatically and program gives always disconnected message.
Method USBClass.GetUSBDevice cannot regocnize my barcode reader.
Thank you in advance
Kind regards
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Article's author ist definitely more qualified to answer that
SkyWalker
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Sorry, I didn't check
I guessed that you were poster.
Thank You.
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I can not find avarage function in C#. Do I need to write it myself or I missed it?
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It's in the LINQ extensions: Ienumerable.Average[^]
Did you know:
That by counting the rings on a tree trunk, you can tell how many other trees it has slept with.
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Thanks for your answer 
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Which average? The arithmetic mean, mode or median? They do different things - so you need to work out what it is you want to do.
"WPF has many lovers. It's a veritable porn star!" - Josh Smith As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.
My blog | My articles | MoXAML PowerToys | Onyx
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You could add root mean square, harmonic mean and geometric mean to that list.
Not as commonly used but still averages.
Regards
David R
---------------------------------------------------------------
"Every program eventually becomes rococo, and then rubble." - Alan Perlis
The only valid measurement of code quality: WTFs/minute.
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Indeed. This is one of the bugbears I have with systems that say they have Average capabilities - the lack of precision in saying which one it is.
"WPF has many lovers. It's a veritable porn star!" - Josh Smith As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.
My blog | My articles | MoXAML PowerToys | Onyx
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