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• .NET vs Mono differences in Development

  - by jason

  I'm looking into Mono and .NET C#, we'll be needing to run the code on Linux Servers in the future when the project is developed. At this point I've been looking at ASP.NET MVC and Mono I run an ubuntu distro and want to do development for a web application, some of the other developers use windows and run other .NET items with Visual Studio. What does Mono not provide that Visual Studio does? If running this on Linux later shouldn't we use Mono Develop ? Is there some third party tools or addin's that might be an issue with Mono later?

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• Export Certificate Windows Server 2008

  - by user1432032

  I need to export the private key of a self-created SSL-certificate on a Windows Server 2008. However at Microsoft Management Console (the certificate is located, if it matter, in Personal-Certificate folder) the option "Yes, export the private key" is greyed out. Reading the provided help section it tells that the certificate needed to "be made exportable" during creation. However it also says that it is ONLY a limitation if it was created using Windows Server 2003. It doesn´t say anything how to fix it though on a Windows 2008 Server. The certificate is self-signed. I want to export to PKCS12 format. I´m accessing MMC as administrator so there should not be any permission issues. How can I make this certificate "exportable"?

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• Error after switching from .NET 3.5 to 4

  - by Queops

  Application.Run(new Main()); This line gives TypeInitializationException was unhandled after I switched from 3.5 to 4 framework. Why is this? Edit: Forgot to mention this is a Winforms C# application. Okay so I have SQLite .NET referenced. I tried this on a project created on .NET 4 by default and didn't give me any error so I assumed it wasn't about SQLite .NET http://sqlite.phxsoftware.com/ Please note v2.0.50727 this is the runtime version of the DLL which seems to be causing the problem. Thrown: "A assemblagem de modo misto foi criada com base na versão 'v2.0.50727' do tempo de execução e não é possível carregá-la no tempo de execução 4.0 sem informações de configuração adicionais." (System.IO.FileLoadException) Exception Message = "A assemblagem de modo misto foi criada com base na versão 'v2.0.50727' do tempo de execução e não é possível carregá-la no tempo de execução 4.0 sem informações de configuração adicionais.", Exception Type = "System.IO.FileLoadException" Seems he can't run the DLL on v4 with/ extra configuration.

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• ASP.NET Website or Web service?

  - by fireBand

  Hi, I am trying to implement a service to download a image file. The code does nothing but upload a file to the response with each client request. There are no SOAP messages involved but I am planning to implement it as ASP.NET web service. It can also be implement as ASP.NET website but since it has no view (forms, html etc) I planned to implement a web-service. Is this a better approach? Does ASP.NET Website offer better performance that a Web-service? Which one would be better is this situation? Thanks in advance.

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• Asp.net MVC database connection setting in Visual studio 2008

  - by AK47

  I am trying to learn Asp.net MVC framework. I was looking at the video tutorial at the link below http://www.asp.net/learn/mvc-videos/video-395.aspx In this video the very first step is to add a new database to the example application. I have visual studio installed on my development machine but the SqlServer Express is running on a different machine, so when I try and add a new database following the same steps as the video I get the following error "Connections to SQL Server files(*.mdf) require SQL express 2005 to funciton properly. Please verify the installation of the component or download from the url" I am assuming this is because Visual studio is looking for an instance of SQL express on my local machine and since it doesnt exist on the local machine,it errors out. So how do i tell visual studio, to connect to a different machine and create the database there? I am using Visual studio 2008 with .net 3.5 Sp1

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• Will Windows Update modify anything in Visual Studio?

  - by Martin

  (Note: Yes, the technical side of this question seems to be rather SuperUser, but the implications are more relevant for StackOverflow readers.) As the title says, we are wondering if (fully) enabling automated Windows Updates on our developer machines will have implications for MS Visual Studio. That is, will any fixes to any components (be it libraries, UI/IDE, compiler, ...) ever be updated through Windows Update? We want to have 100% exact and reproducible development environments (wrt C++) on all developer machines, and so we are concerned that automated Windows updates may introduce some uncontrolled updates into our development chain.

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• ASP.NET - remote screenshot

  - by ufoq

  Hi All, I made a very very simple small app to take screenshot of the desktop and send to network share. About 10 PC's would have this app installed. My idea is, that there will be one dashboard in ASP.NET, which simply shows those screenshots on the webpage. So far, easy stuff. But, because I don't want to clog the network and send the screenshot every 1 minute, I would like to launch the .exe on the remote PC's by demand of ASP.NET user. Unfortunately I haven't found any information (and I'm a complete ASP.NET n00b), how to launch remote executable IN the context of the remote PC (so I won't see screenshots of ASP server :) ) If there is no such possibility, please advise about other way to solve this.

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• Writing .NET in dynamic language?

  - by tillda

  I'm confused by the possibility of writing .NET in dynamic languages, such as (Iron)Ruby. Particularly, I've seen code in IronRuby that used generics (...foo[String]), but I'm not aware of this feature in Ruby as it seems nonsense to me in dynamic languages. So, when I write .NET app in IronRuby, how is it with type safety and compilation? I thought that it is just as dynamic as Ruby everywhere else. I thought that if the Ruby syntax is OK all the type checking would be done at the runtime. Also, as far as I know, .NET itself is type-oriented - there are classes that heavily utilize the mentioned generics. How is this handled? And what about delegates? In dynamic languages I can have almost function-spaghetti and sometimes, its just fine (like hacking UI in javascript). Or do I have to care even about generic delegates?

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• Slow first page load on asp.net site

  - by Tabloo Quijico

  Hi, Every now and then (always after a long period of idle-time, e.g. overnight) when I access a site built using asp.net - it takes around 15 seconds to load the page (15 seconds before I see any progress whatsoever, then the page comes up fast). Further pages on that site, or refreshes, are quick as usual - they are also fast on other machines, only the first one seems to take the 'hit'. Page tracing never through anything up (whole cycle was a fraction of a second) So my question is where else should I be looking? Perhaps IIS? Or could it still be my asp.net app and I'm just looking in the wrong place (the trace) for clues? As I don't have much control over the IIS server, anything I can check through asp.net would be more helpful, before I go ask that particular admin. cheers :D

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• Best use of System.Windows.Forms.Application.Run()

  - by carlos

  Hello i Have a programa that has starts in a main sub, it executes some code and after that code it opens a form using System.Windows.Forms.Application.Run(General) General is a form but also a class, so I wonder what it the pros or cons of using : System.Windows.Forms.Application.Run(General) vs Dim gen as general System.Windows.Forms.Application.Run(gen) In the first I am opening a form using the name of the class, and I read that it is best to declare the instance as an object variable. So far I used the first approach without any problem. Thanks for your comments !

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• Capture IP packets on Dialup connection - Windows 7

  - by Assaf Levy

  Our product utilizes (the wonderful) Winpcap to capture ip packets from all devices with an IP address and analyze them in real time. Unfortunately, we discovered that it does NOT capture any packets on dialup (e.g. PPP) connections on Windows 7, and that there are no near-term plans for enabling this (1). So we need something else. Microsoft Network Monitor and Windows Packet Filter are two options that surfaced during a bit of googling, but before delving into research I wanted to ask the experienced: what are out options, given the following requirements: Capture all in/outbound IP packets on the machine. Complete background processing - no UI should be involved. Support Windows Vista / 7. Performance (user should not feel the difference). Thanks in advance.

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• C# .NET 2.0 components

  - by Ervin

  How can I check what objects, tools, variables, anything... are used from .NET 2.0 in a C# application. How can I get a C# application run without .NET 2.0 ? UPDATE: sorry, I didn't clarify enought. Here's my situation: I have developed a pretty simple application in C#: embeded browser which displayes static webpages with an option of searching inside of these html pages. I'm using simple textbox, buttons components for this. The application will be distribuited for people wich have very old PCs, even with windows 95. I would like the app to be runable on it, or at least on win 98, without telling the people to install .NET 2.0, as the users don;t really have PC usage skills :) .

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• C# asp.net MVC: When to update LastActivityDate?

  - by Oskar Kjellin

  I'm using asp.net mvc and creating a public website. I need to keep track of users that are online. I see that the standard way in asp.net of doing this is to keep track of LastActivityDate. My question is when should I update this? If I update it every time the users clicks somewhere, I will feel a performance draw back. However if I do not do that, people that only surf arround will be listed as offline. What is the best way to do this in asp.net MVC?

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• Asychronous page update with ASP.NET MVC

  - by Graham

  Hi, I'm learning ASP.NET MVC 1.0 and need to implement an asynchronous/dynamic page update. I'm new to MVC and jQuery so I'm not sure what to look for. What I want to do is to allow a user to start a monitoring a domain layer function (similar to a news ticker) and then do a partial page update based on the continously changing results. In ASP.NET I'd do this with a javascript timer to cause a postback, and an AJAX update panel..... but this seems a bit "hacky" for ASP.NET MVC. Is there a better way?

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• How to find dynamically loaded modules (the static ones) programatically in windows

  - by Ryan Rohrer

  I'm trying to port the unix utility ldd to windows, because dependency walker and cygcheck don't quite give me the usage I'm looking for. (also for the learning experience) Ive been looking all over MSDN, for a windows API that lists dll dependencies of an executable, or even the storage format in the complied exe (just to filter it out), but I've been unable to find anything. If anyone knows what API call windows uses for listing modules to load, or what patterns I can search for in an executable to find modules to load, please help me out :) thanks! -note: I'm not looking to profile for dynamic modules, just list the ones that are required at runtime

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• New to VS.net (VB.net) 2008. Windows 7 aero glass stuff.

  - by StealthRT

  Hey all, i have been using VB.net 2008 for a few months and i have a question. I compiled my program and ran it in a VM running windows 7. However, the progress bar looks like it does in XP. It doesn't have that cool look to it like I've seen in many other programs running in windows 7. I have downloaded the 3.5 .net framework with sp1 and also the sdk for windows 7 (1.4+ gb dvd) but i still see nothing. Is there a check-box i am missing in VS 2008 to enable these types of features? Maybe some type of code i need to place in the program? Thanks! David

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• Detecting metadata-only read requests in windows filesystem

  - by HyLian

  Hello, I'm developing a kind of filesystem driver. All of read requests that windows makes to my filesystem goes by the driver implementation. I would like to distinguish between "normal" read requests and those who want to get only the metadata from the file. ( Windows reads first 4K of the file and then stop reading ). Does Windows mark this metadata reads in some way? It would be very useful in order to treat that two kind of operations in a different way. In a typical CreateFile call, we have AccessMode, ShareMode, CreationDisposition and FlagsAndAttributes parameters ( being DWORD ), i'm not sure if it's possible to extract some clue of the operation requested. Thanks for reading :)

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• Can I subscribe to window-docking events in windows 7 from C#

  - by www.mortenbock.dk

  Hi. I am wondering if it is possible to create an application that could receive a notification when any other application/window is docked with the new windows 7 docking feature (f.ex. Winkey + left arrow) The purpose of my application would be to set up custom rules for certain windows. So for example if I am using Chrome and I press the Win+LEFT keys, then my application would receive a notification, and would be able to say that the window should not resize to 50% of the screen, but should use 70%. I am not very familiar with writing windows applications (mostly do web), so any pointers at how this might be achieved are very welcome. Thanks.

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• Pin WPF window on the desktop in Windows 7

  - by Dennis1001

  I want to pin a WPF window on the desktop (it should be a desktop gadget). I know you can do this by setting the parent handle of the WPF window to the handle of the "progman" window. But this does not prevent the hiding of the WPF window when "Windows + D" is pressed. There must be another way do to this. The new desktop gadgets in Windows 7 are not hidden when "Windows + D" is pressed. How did the MS developers achieve this?

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• Windows XP batch file concat

  - by dls

  I'm trying to accomplish the following ridiculous task: I have a text file containing a set of fully qualified filesnames. I want to iterate through the file and append each line to a common variable, that can be passed to a command line tool. For example, the file might be: C:\dir\test.txt C:\WINDOWS\test2.txt C:\text3.txt and I'd like to assign them to some variable 'a' such that: a = "C:\dir\test.txt C:\WINDOWS\test2.txt C:\text2.txt" A secondary question is - what is a good batch file reference? I'm finding some stuff in the Windows material, and a lot of home-grown websites, but nothing particularly complete. Thanks!

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• Help me to choose the right platform for my Portal from .net, php, php based cms and .net based cms

  - by parveen-yadav

  hi I am planning to develop a site very similar to http://www.nextdaypets.com/ but with some more features...i have worked on JOOMLA n i know it pretty well. but there are few limitation like access level control and there is no component available for what i need. what i m confused about is that whether i should make that component in joomla or should i develop my own cms or should i take some .net based cms and write the component for it. I know C# and .net framework as a beginner. I just completed a certification course in .net last month and i don't know php but don't have issue in learning it...so what should i do...please suggest.

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• Windows service only gets called when Visual Studio is attached to process

  - by 64th

  I've created a simple windows service in C# using Visual Studio 2010. It uses a TcpListener and socket to listen for messages on a given port. This worked absolutely perfectly when my laptop had Windows Vista on it. However, since upgrading to Windows 7 and re-installing my service it only responds if I'm attached to the process and debugging in Visual Studio 2010 - at which time it behaves as expected. I've tried running the service under my (administrator) credentials and setting the exe to run as administrator. I've also checked "Allow service to interact with desktop" when it was running under the Local System account. I'm testing using both a test console app and an Adobe Air application - both with the same results. Are there some specific permissions that I need to allow the service to be called?

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• Do Portable Class Libraries work with .net 3.5?

  - by Eric

  I am running Windows 8 and have both Visual Studio 2010 Ultimate w/sp1 and Visual Studio 2012 Ultimate and I am trying to create a Portable Class Library that supports .net 3.5 and greater. When I first try to create a PCL I get a screen like this: I noticed that .net 3.5 is not in the list so I clicked on "Install additional frameworks" and found a Targeting Pack for version 3.5. But when I download and run "dotnetfx35setup.exe" nothing happens. And when I go back into VS and try to create a new Portable Class Library, it lists the same target frameworks as before. I have also turned on the Windows Features for .NET Framework 3.5 and am now out of ideas. Here is a screen shot in case I missed something else. Thanks,

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• How to tell my asp.net page to use .net 3.5?

  - by kralco626

  My company recently upgraded from IE 6 to IE 8. My site does not render properly. I wanted to make sure my .net version was fixed before I started to try to fix a problem. I think my web.config file says i'm using 3.5, but if I get an error when running the app I get this: Version Information: Microsoft .NET Framework Version:2.0.50727.3603; ASP.NET Version:2.0.50727.3082 Why does it say 2.0? rather than 3.5? How do i change this? (using visual studio 2008, running the site locally) Thanks in advance!

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• Get selected items from explorer using C# .NET 3.5

  - by ghawkes

  I am writing a .NET 3.5 WPF application in C#. This application needs to be able to get the selected items out of Windows explorer when it is in the foreground. I already have the code working that handles a global Windows hotkey and then checks to see if the foreground IntPtr is from explorer. If so, I am able to obtain the System.Diagnostics.Process object that maps to explorer. At this point, I would like to obtain the list of selected items from explorer. Perhaps there is a Windows API function that I could pinvoke to do this? Thank you, G

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