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• Inheritance security rules violated while overriding member - SecurityRuleSet.Level2

  - by Page Brooks

  I have a class that inherits from Exception. In .NET 4, I started receiving a runtime error: Inheritance security rules violated while overriding member: MyBusinessException.GetObjectData(System.Runtime.Serialization.SerializationInfo, System.Runtime.Serialization.StreamingContext)'. Security accessibility of the overriding method must match the security accessibility of the method being overriden. I think the issue is caused by the fact that I am overriding GetObjectData. I know one answer for resolving the issue is to set the SecurityRuleSet: [assembly: SecurityRules(SecurityRuleSet.Level1)] This is not an acceptable answer, I'd like to know how to fix the issue without having to relax the default security rules in .NET 4.

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• ErrorListProvider in VS2010 throws InvalidOperationException about IVsTaskList

  - by Ben Hall

  I'm trying to hook into the ErrorListProvider in VS2010 to provide some more feedback from my VS2010 extension addin. The code is as follows: try { ErrorListProvider errorProvider = new ErrorListProvider(ServiceProvider); ErrorTask error = new ErrorTask(); error.Category = TaskCategory.BuildCompile; error.Text = "ERROR!"; errorProvider.Tasks.Add(error); } catch (InvalidOperationException) { } However the following exception is thrown: System.InvalidOperationException was caught Message=The service 'Microsoft.VisualStudio.Shell.Interop.IVsTaskList' must be installed for this feature to work. Ensure that this service is available. Source=Microsoft.VisualStudio.Shell.10.0 StackTrace: at Microsoft.VisualStudio.Shell.TaskProvider.get_VsTaskList() at Microsoft.VisualStudio.Shell.TaskProvider.Refresh() at Microsoft.VisualStudio.Shell.TaskProvider.TaskCollection.Add(Task task) Does anyone have any ideas why?

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• Microsoft.Web.Administration.ServerManager can't read config sections containing encrypted passwords

  - by Dylan Beattie

  I have some sites in IIS7 that are configured to run as domain users (MYDOMAIN\someuser). I'm using the Microsoft.Web.Administration namespace to scan my server configuration, but it's throwing an exception when I hit one of these "impersonator" sites: using (ServerManager sm = new ServerManager()) { foreach (Site site in sm.Sites) { foreach (Application app in site.Applications.Reverse()) { foreach (VirtualDirectory vdir in app.VirtualDirectories.Reverse()) { var config = app.GetWebConfiguration(); foreach (var locationPath in config.GetLocationPaths()) { // error occurs in GetLocationPaths() } } } } } The actual error message is: COMException was unhandled Filename: \\?\C:\Windows\system32\inetsrv\config\applicationHost.config Line number: 279 Error: Failed to decrypt attribute 'password' because the keyset does not exist It appears that IIS is storing the MYDOMAIN\someuser password encrypted in applicationHost.config, which is great in terms of security - but I have no idea how to get the ServerManager to decrypt this. Any tips on how I can either allow ServerManager to decrypt this, or just tell IIS to store the passwords in plain text? This is on IIS7 under Windows 7 RC, by the way.

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• The remote server returned an error: (401) Unauthorized.

  - by Zaidman

  Hi I'm trying to get the html code of certain webpage, I have a username and a password that are correct but i still can't get it to work, this is my code: private void buttondownloadfile_Click(object sender, EventArgs e) { NetworkCredentials nc = new NetworkCredentials("?", "?", "http://cdrs.globalpopsvoip.com/0000069/20091229/20091228_20091228.CDR"); WebClient client = new WebClient(); client.Credentials = nc; String htmlCode = client.DownloadString("http://cdrs.globalpopsvoip.com/0000069/20091229/20091228_20091228.CDR"); MessageBox.Show(htmlCode); } The MessageBox is just to test it, the problem is that every time I get to this line: String htmlCode = client.DownloadString("http://cdrs.globalpopsvoip.com/0000069/20091229/20091228_20091228.CDR"); I get an exception: The remote server returned an error: (401) Unauthorized. How do I fix this?

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• iphone - How do I add videos to iPad simulator?

  - by Mike

  No, dropping the videos to ~/Library/Application Support/iPhone Simulator/3.2/Media/DCIM/100APPLE does not work totally, because the simulator can see the video on Photos.app, but when I try to pick a video using UIImagePickerController my application crashes. I think this may have some relation to the format the video has to have. I am using QuickTime to generate the video. I am using the settings "for iPhone"... so it is generating a M4V with 480x360 pixels H264. I have tried to create a MOV with the same characteristics and one with 640x480 but nothing works. I have also dropped a movie created with iPhone 3GS and it still crashes. this is the error I see when it crashes * Terminating app due to uncaught exception 'NSRangeException', reason: '* -[NSCFArray objectAtIndex:]: index (1) beyond bounds (0)' the method didFinishPickingMediaWithInfo is never called, so its some issue on the simulator or on the video. The app crashes as soon as I pick the video. any ideas? thanks.

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• IOException reading from HttpWebResponse response stream over SSL

  - by Lawrence Johnston

  I get the following exception when attempting to read the response from my HttpWebRequest: System.IO.IOException: Received an unexpected EOF or 0 bytes from the transport stream. at System.Net.ConnectStream.Read(Byte[] buffer, Int32 offset, Int32 size) at System.IO.StreamReader.ReadBuffer() at System.IO.StreamReader.ReadToEnd() ... My code functions without issue when using http. I am talking to a third-party device; I do not have access to the server code. My code is as follows: private string MakeRequest() { // Disable SSL certificate verification per // http://www.thejoyofcode.com/WCF_Could_not_establish_trust_relationship_for_the_SSL_TLS_secure_channel_with_authority.aspx ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(delegate { return true; }); Uri uri = new Uri("https://mydevice/mypath"); HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri); request.Method = WebRequestMethods.Http.Get; using (HttpWebResponse response = (HttpWebResponse)request.GetResponse()) { using (Stream responseStream = response.GetResponseStream()) { using (StreamReader sr = new StreamReader(responseStream.)) { return sr.ReadToEnd(); } } } } Does anybody have any thoughts about what might be causing it?

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• How do I use AutofacWebTypesModule to Resolve HttpServerUtilityBase

  - by Scott Weinstein

  I have the following registrations builder.RegisterModule(new AutofacWebTypesModule()); builder.Register<MyType>(ctx => { var server = ctx.Resolve<HttpServerUtilityBase>(); ... }); When I try to resolve MyType via a constructor on an Controller, I get the following exception. What am I doing wrong? Autofac.Core.DependencyResolutionException was unhandled by user code Message=No scope matching the expression 'value(Autofac.Builder.RegistrationBuilder`3+<c__DisplayClass0[System.Web.HttpServerUtilityBase,Autofac.Builder.SimpleActivatorData,Autofac.Builder.SingleRegistrationStyle]).lifetimeScopeTag.Equals(scope.Tag)' is visible from the scope in which the instance was requested.

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• Entity framework MappingException: The type 'XXX has been mapped more than once

  - by Michal

  Hi everyone, I'm using Entity framework in web application. ObjectContext is created per request (using HttpContext), hereby code: string ocKey = "ocm_" + HttpContext.Current.GetHashCode().ToString(); if (!HttpContext.Current.Items.Contains(ocKey)) { HttpContext.Current.Items.Add(ocKey, new ElevationEntityModel(EFConnectionString)); } _eem = HttpContext.Current.Items[ocKey] as ElevationEntityModel; Not every time, but sometimes I have this exception: System.Data.MappingException was unhandled by user code Message=The type 'XXX' has been mapped more than once. Source=System.Data.Entity I'm absolutely confused and I don't have any idea what can caused this problem. Can anybody help me? Thanks.

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• C# Dictionary as a ListBox.DataSource

  - by Steve H.

  I am trying to bind a dictionary as a DataSource to a ListBox. The solution in How to bind a dicationary to a ListBox in winforms will not work for me because my dictionary is a class-level variable and not a method-level variable, so I can not use var. When you put a class-level variable into new BindingSource(...) with null as the second argument I get an ArgumentNull exception. How do I bind a class-level dictionary as a data source for a list box? I don't like the List< KeyValuePair< string, string work-around becuase Where(...) and First(...) are ugly, complicated, and confusing compared to TryGetValue(...) and other Dictionary functionality.

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• httpclient ssl certificate on android

  - by Mojo Risin

  Hi all I have some troubles with ssl using httpclient on android i am trying to access public trusted certificate in details i want my app to trust all certificates. First i tried using this guide http://hc.apache.org/httpclient-3.x/sslguide.html on Desktop is working fine but on android i still got javax.net.ssl.SSLException: Not trusted server certificate. After searching in google i found some other examples how to enable ssl. http://groups.google.com/group/android-developers/browse_thread/thread/62d856cdcfa9f16e - Working when i use URLConnection but with HttpClient still got the exception. http://www.discursive.com/books/cjcook/reference/http-webdav-sect-self-signed.html - on Desktop using jars from apache is working but in android using included in SDK classes can't make it work. So any ideas how can i access trust public certificates on android using HttpClient

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• Matlab and .NET Interaction

  - by adyaron

  Hi All! I'm having an issue interacting between Matlab and .NET. I've managed to call .NET methods from Matlab code and vice versa. However, if I call a .NET method that, in turn, instantiates a Matlab object, it crashes (with a type initialization exception). Think about this scenario: a .NET assembly is interacting with a Matlab dll that was deployed for .NET (not native) by Matlab's deploytool. Now, when I'm loading the above .NET dll in a Matlab program everything is ok until I run a method that utilizes the other Matlab dll. Only then everything crashes. The exact message is: Warning: Cannot initialize MATLAB Compiler-generated software component in MATLAB. MATLAB Compiler-generated software components cannot be used from within MATLAB. Please don't offer not to use Matlab-.NET-Matlab architecture, it's not an option. Thank you very much (I promise to accept the answer that solves the problem :-)), Yaron.

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• How to scroll to the bottom of a UITableView on the iPhone before the view appears

  - by acqu13sce

  I have a UITableView that is populated with cells of a variable height. I would like the table to scroll to the bottom when the view is pushed into view. I currently have the following function NSIndexPath *indexPath = [NSIndexPath indexPathForRow:[log count]-1 inSection:0]; [self.table scrollToRowAtIndexPath:indexPath atScrollPosition:UITableViewScrollPositionBottom animated:NO]; log is a mutable array containing the objects that make up the content of each cell. The above code works fine in viewDidAppear however this has the unfortunate side effect of displaying the top of the table when the view first appears and then jumping to the bottom. I would prefer it if the table view could be scrolled to the bottom before it appears. I tried the scroll in viewWillAppear and viewDidLoad but in both cases the data has not been loaded into the table yet and both throw an exception. Any guidance would be much appreciated, even if it's just a case of telling me what I have is all that is possible.

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• XML Reading org.xml.sax.SAXParseException: Expecting end of file.

  - by vivekbirdi

  Hi, I am getting problem while parsing XML File using JDE 4.6. FileConnection fconn = (FileConnection)Connector.open ("file:///SDCard/Dictionary.xml",Connector.READ_WRITE); InputStream din= fconn.openInputStream(); DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); DocumentBuilder builder = factory.newDocumentBuilder(); Document document = builder.parse(din); here I am getting Exception at Document document = builder.parse(din); org.xml.sax.SAXParseException: Expecting end of file. please give me some solution. Thanks

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• HttpWebRequest gives a SocketException with error code 10050

  - by Shodan Is Alive

  Hi everybody I'm pulling my hairs off since two days now because I'm trying to download an image from a website using HttpWebRequest. When I call the method "GetResponse" of that class, I get the WebException "Unable to connect to the remote server.". The inner exception is "A socket operation encountered a dead network 193.63.75.26:80". After some trial and error, I created a new website to test only that portion of code and it works. I thought it could be the proxy settings so I changed settings for both of the websites according to some clues I found googling around but the situation remains the same. Basically the code I execute is this xHttpReq = System.Net.HttpWebRequest.Create(New Uri(uri)) xHttpReq.Timeout = 30000 xHttpResp = xHttpReq.GetResponse() '<-- here's where I get the error xRespStream = xHttpResp.GetResponseStream I can't figure out what I'm doing wrong... can someone help me?

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• Fail to launch application (CreateProcess error=87), can't use shorten classpath workaround

  - by Ivo Bosticky

  When I launch our application in Eclipse on Windows I receive the following error: Exception occured executing command line. Cannot run program .. : CreateProcess error=87, The parameter is incorrect I've solved this in the past by shortening the CLASSPATH. I've now come to a point where I can no longer shorten the CLASSPATH, and would like to know if there are any other workarounds. http://support.microsoft.com/kb/830473 seems to indicate that the max command prompt line length in windows xp is 8191 characters, and the only solution is to shorten folder names, reduce depth of folder trees, using parameter files, etc.

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• .NET HttpListener Prefix issue with anything other than localhost

  - by jchristner

  I'm trying to use C# and HttpListener with a prefix of anything other than localhost and it fails (i.e. if I give it "server1", i.e. http://localhost:1234 works, but http://server1:1234 fails The code is... HttpListener listener = new HttpListener(); String prefix = @"http://server1:1234"; listener.Prefixes.Add(prefix); listener.Start(); The failure occurs on listener.Start() with an exception of "Access is denied.".

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• MS CRM Register a plugin

  - by mwright

  I am trying to register a plugin for MS CRM, the situation is as follows. It's an IFD deployment and everytime that I connect using the Microsoft provided plugin registration tool I get the following error message. Unhandled Exception: System.Net.WebException: The request failed with the error message: -- <html><head><title>Object moved</title></head><body> <h2>Object moved to <a href="https://URL/signin.aspx?targeturl=https%3a%2f%2fURL%2fMSCrmServices%2f2007%2fIFD%2fcrmdiscoveryservice.asmx%2fmscrmservices%2f2007%2fad%2fcrmdiscoveryservice.asmx">here</a>.</h2> </body></html> The link that I'm using to connect looks like this: https://URL/MSCrmServices/2007/IFD/crmdiscoveryservice.asmx Can anyone give me some direction?

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• How do I use beta Perl modules from beta Perl scripts?

  - by DVK

  If my Perl code has a production code location and "beta" code location (e.g. production Perl code us in /usr/code/scripts, BETA Perl code is in /usr/code/beta/scripts; production Perl libraries are in /usr/code/lib/perl and BETA versions of those libraries are in /usr/code/beta/lib/perl, is there an easy way for me to achieve such a setup? The exact requirements are: The code must be THE SAME in production and BETA location. To clarify, to promote any code (library or script) from BETA to production, the ONLY thing which needs to happen is literally issuing cp command from BETA to prod location - both the file name AND file contents must remain identical. BETA versions of scripts must call other BETA scripts and BETA libraries (if exist) or production libraries (if BETA libraries do not exist) The code paths must be the same between BETA and production with the exception of base directory (/usr/code/ vs /usr/code/beta/) I will present how we solved the problem as an answer to this question, but I'd like to know if there's a better way.

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• iPhone: How to Get Basic Authentication to HTTPS Web Service Using NSURLCredential

  - by ian1971

  I am trying to call an https web service (RESTful) using basic authentication. It works fine if I put the credentials in the url itself but I would rather add it to the request so that the password does not appear, for instance in an exception. I am using the following code: NSURLCredential *credential = [NSURLCredential credentialWithUser:@"myuser" password:@"mypassword" persistence:NSURLCredentialPersistenceForSession]; NSURLProtectionSpace *protectionSpace = [[NSURLProtectionSpace alloc] initWithHost:@"example.com" port:443 protocol:@"https" realm:nil authenticationMethod:NSURLAuthenticationMethodHTTPBasic]; [[NSURLCredentialStorage sharedCredentialStorage] setDefaultCredential:credential forProtectionSpace:protectionSpace]; NSURLConnection *theConnection = [NSURLConnection connectionWithRequest:theRequest delegate:self]; but it does not work. The didReceiveAuthenticationChallenge delegate method gets called and I can add a credential there but ideally I would send it with the request. Any ideas?

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• Deserializing JSON into an object with Json.NET

  - by hmemcpy

  Hello. I'm playing a little bit with the new StackOverflow API. Unfortunately, my JSON is a bit weak, so I need some help. I'm trying to deserialize this JSON of a User: {"user":{ "user_id": 1, "user_type": "moderator", "creation_date": 1217514151, "display_name": "Jeff Atwood", ... "accept_rate": 100 }} into an object which I've decorated with JsonProperty attributes: [JsonObject(MemberSerialization.OptIn)] public class User { [JsonProperty("user_id", Required = Required.Always)] public virtual long UserId { get; set; } [JsonProperty("display_name", Required = Required.Always)] public virtual string Name { get; set; } ... } I get the following exception: Newtonsoft.Json.JsonSerializationException: Required property 'user_id' not found in JSON. Is this because the JSON object is an array? If so, how can I deserialize it to the one User object? Thanks in advance!

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• ViewContext.RouteData.Values["action"] is null on server... works fine on local machine

  - by rksprst

  I'm having a weird issue where ViewContext.RouteData.Values["action"] is null on my staging server, but works fine on my dev machine (asp.net development server). The code is simple: public string CheckActiveClass(string actionName) { string text = ""; if (ViewContext.RouteData.Values["action"].ToString() == actionName) { text = "selected"; } return text; } I get the error on the ViewContext.RouteData.Values["action"] line. The error is: Exception Details: System.NullReferenceException: Object reference not set to an instance of an object. Any help is appreciated. Thanks in advance.

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• How do I use beta test Perl modules from test Perl scripts?

  - by DVK

  If my Perl code has a production code location and "beta" code location (e.g. production Perl code us in /usr/code/scripts, BETA Perl code is in /usr/code/beta/scripts; production Perl libraries are in /usr/code/lib/perl and BETA versions of those libraries are in /usr/code/beta/lib/perl, is there an easy way for me to achieve such a setup? The exact requirements are: The code must be THE SAME in production and BETA location. To clarify, to promote any code (library or script) from BETA to production, the ONLY thing which needs to happen is literally issuing cp command from BETA to prod location - both the file name AND file contents must remain identical. BETA versions of scripts must call other BETA scripts and BETA libraries (if exist) or production libraries (if BETA libraries do not exist) The code paths must be the same between BETA and production with the exception of base directory (/usr/code/ vs /usr/code/beta/) I will present how we solved the problem as an answer to this question, but I'd like to know if there's a better way.

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• CrystalReport Load report failed

  - by mSafdel

  I have a windows application project (C# and .NET 2.0) that used Crystal Report 2008. But I get error sometimes (it seems accidentally) in loading report. That error is: CrystalDecisions.Shared.CrystalReportsException: Load report failed. System.Runtime.InteropServices.COMException (0x8000020D): Unable to load report. at CrystalDecisions.ReportAppServer.ClientDoc.ReportClientDocumentClass.Open(Object& DocumentPath, Int32 Options) at CrystalDecisions.ReportAppServer.ReportClientDocumentWrapper.Open(Object& DocumentPath, Int32 Options) at CrystalDecisions.ReportAppServer.ReportClientDocumentWrapper.EnsureDocumentIsOpened() --- End of inner exception stack trace --- at CrystalDecisions.ReportAppServer.ReportClientDocumentWrapper.EnsureDocumentIsOpened() at CrystalDecisions.CrystalReports.Engine.ReportDocument.Load(String filename, OpenReportMethod openMethod, Int16 parentJob) at CrystalDecisions.CrystalReports.Engine.ReportDocument.Load(String filename) at SIA.DataTransfer.Forms.frmReport.GetStateReport(Int32 transferType) please guide me. How can I solve this problem?

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• Excel COM - Unable to get the Open property of the Workbooks class?

  - by Abs

  Hello all, I have tried this and I get this error: $excel_app = new COM("Excel.Application") or Die ("Did not connect"); $Workbook = $excel_app->Workbooks->Open('Variables.xls') or Die('Did not open filename'); I get this error: Unable to get the Open property of the Workbooks class What does this error mean? In addition, is there an API or a function list for accessing excel via COM. Thanks all Update Full error: exception 'com_exception' with message 'Source: Microsoft Excel Description: Unable to get the Open property of the Workbooks class' in C:\excel.php:22 Stack trace: #0 C:\excel.php(22): variant->Open('C:\...') #1 {main}

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• Zend Framework - Zend Tool - Module error: I have error after I create module with Zend Tool

  - by Yosef

  Hi, I new in zend framework. I create zend project with zend tool and its works , but i create module and when i try access him with browser I get Error. I write my steps, please help me. Thanks, Yosef My steps: $ sudo zf create project mystore put Zend library inside library test: http://localhost/mystore/public/ (working) Add module store (not working) $ sudo zf create module store add to application.ini path to modules resources.frontController.moduleDirectory = APPLICATION_PATH "/modules" resources.modules = "" test1: http://localhost/mystore/public/store/ test2: http://localhost/mystore/public/store/public/ test3: http://localhost/mystore/public/modules/store/public/ test1+2+3 result: An error occurred Page not found Exception information: Message: Invalid controller specified (index.php) Stack trace: #0 /var/www/mystore/library/Zend/Controller/Front.php(954): Zend_Controller_Dispatcher_Standard->dispatch(Object(Zend_Controller_Request_Http), Object(Zend_Controller_Response_Http)) #1 /var/www/mystore/library/Zend/Application/Bootstrap/Bootstrap.php(97): Zend_Controller_Front->dispatch() #2 /var/www/mystore/library/Zend/Application.php(366): Zend_Application_Bootstrap_Bootstrap->run() #3 /var/www/mystore/public/index.php(25): Zend_Application->run() #4 {main} Request Parameters: array ( 'module' => 'store', 'controller' => 'index.php', 'action' => 'index', )

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