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• Visual Studio: How to attach a debugger dynamically to a specific process

  - by Jeff Cyr

  I am building an internal dev tool to manage different processes commonly used in our development environment. The tool show the list the monitored processes, indicate their running state and allow to start or stop each process. I'd like to add the functionality of attaching a debugger to a monitored process from my tool instead of going in 'Debug-Attach to process' in visual studio and finding the process. My goal is to have something like Debugger.Launch() that would show a list of the available visual studio. I can't use Debugger.Launch() because it lauches the debugger on the process that make the call. I would need something like Debugger.Launch(processId). Does anyone know how to acheive this functionality? A solution could be to implement a command in each monitored process to call Debugger.Launch() when the command is received from the monitoring tool, but I would prefer something that does not require to modify the code of the monitored processes. Side question: When using Debugger.Launch(), instances of Visual Studio that already have a debugger attached are not listed. Visual Studio is not limited to one attached debugger, you can attach on multiple process when using 'Debug - Attach to process'. Anyone know how to bypass this limitation when using Debugger.Launch() or an alternative?

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• How to efficiently show many Images? (iPhone programming)

  - by Thomas

  In my application I needed something like a particle system so I did the following: While the application initializes I load a UIImage laserImage = [UIImage imageNamed:@"laser.png"]; UIImage *laserImage is declared in the Interface of my Controller. Now every time I need a new particle this code makes one: // add new Laserimage UIImageView *newLaser = [[UIImageView alloc] initWithImage:laserImage]; [newLaser setTag:[model.lasers count]-9]; [newLaser setBounds:CGRectMake(0, 0, 17, 1)]; [newLaser setOpaque:YES]; [self.view addSubview:newLaser]; [newLaser release]; Please notice that the images are only 17px * 1px small and model.lasers is a internal array to do all the calculating seperated from graphical output. So in my main drawing loop I set all the UIImageView's positions to the calculated positions in my model.lasers array: for (int i = 0; i < [model.lasers count]; i++) { [[self.view viewWithTag:i+10] setCenter:[[model.lasers objectAtIndex:i] pos]]; } I incremented the tags by 10 because the default is 0 and I don't want to move all the views with the default tag. So the animation looks fine with about 10 - 20 images but really gets slow when working with about 60 images. So my question is: Is there any way to optimize this without starting over in OpenGl ES? Thank you very much and sorry for my english! Greetings from Germany, Thomas

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• How to return proper 404 for google while providing user friendly content to the user?

  - by Marek

  I am bouncing between posting this here and on Superuser. Please excuse me if you feel this does not belong here. I am observing the behavior described here - Googlebot is requesting random urls on my site, like aecgeqfx.html or sutwjemebk.html. I am sure that I am not linking these urls from anywhere on my site. I suspect this may be google probing how we handle non existent content - to cite from an answer to the linked question: [google is requesting random urls to] see if your site correctly handles non-existent files (by returning a 404 response header) We have a custom page for nonexistent content - a styled page saying "Content not found, if you believe you got here by error, please contact us", with a few internal links, served (naturally) with a 200 OK. The URL is served directly (no redirection to a single url). I am afraid this may discriminate the site at google - they may not interpret the user friendly page as a 404 - not found and may think we are trying to fake something and provide duplicate content. How should I proceed to ensure that google will not think the site is bogus while providing user friendly message to users in case they click on dead links by accident?

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• How to put large text data (~20mb) into sql cs 3.5 database?

  - by Anindya Chatterjee

  I am using following query to insert some large text data : internal static string InsertStorageItem = "insert into Storage(FolderName, MessageId, MessageDate, StorageData) values ('{0}', '{1}', '{2}', @StorageData)"; and the code I am using to execute this query is as follows : string content = "very very large data"; string query = string.Format(InsertStorageItem, "Inbox", "AXOGTRR1445/DSDS587444WEE", "4/19/2010 11:11:03 AM"); var command = new SqlCeCommand(query, _sqlConnection); var paramData = command.Parameters.Add("@StorageData", System.Data.SqlDbType.NText); paramData.Value = content; paramData.SourceColumn = "StorageData"; command.ExecuteNonQuery(); But at the last line I am getting this following error : System.Data.SqlServerCe.SqlCeException was unhandled by user code Message=The data was truncated while converting from one data type to another. [ Name of function(if known) = ] Source=SQL Server Compact ADO.NET Data Provider HResult=-2147467259 NativeError=25920 StackTrace: at System.Data.SqlServerCe.SqlCeCommand.ProcessResults(Int32 hr) at System.Data.SqlServerCe.SqlCeCommand.ExecuteCommandText(IntPtr& pCursor, Boolean& isBaseTableCursor) at System.Data.SqlServerCe.SqlCeCommand.ExecuteCommand(CommandBehavior behavior, String method, ResultSetOptions options) at System.Data.SqlServerCe.SqlCeCommand.ExecuteNonQuery() at Chithi.Client.Exchange.ExchangeClient.SaveItem(Item item, Folder parentFolder) at Chithi.Client.Exchange.ExchangeClient.DownloadNewMails(Folder folder) at Chithi.Client.Exchange.ExchangeClient.SynchronizeParentChildFolder(WellKnownFolder wellknownFolder, Folder parentFolder) at Chithi.Client.Exchange.ExchangeClient.SynchronizeFolders() at Chithi.Client.Exchange.ExchangeClient.WorkerThreadDoWork(Object sender, DoWorkEventArgs e) at System.ComponentModel.BackgroundWorker.OnDoWork(DoWorkEventArgs e) at System.ComponentModel.BackgroundWorker.WorkerThreadStart(Object argument) InnerException: Now my question is how am I supposed to insert such large data to sqlce db? Regards, Anindya Chatterjee http://abstractclass.org

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• Why is this SocketException not caught by a generic catch routine?

  - by Tarnschaf

  Our company provides a network component (DLL) for a GUI application. It uses a Timer that checks for disconnections. If it wants to reconnect, it calls: internal void timClock_TimerCallback(object state) { lock (someLock) { // ... try { DoConnect(); } catch (Exception e) { // Log e.Message omitted // Raise event with e as parameter ErrorEvent(this, new ErrorEventArgs(e)); DoDisconnect(); } // ... } } So the problem is, inside of the DoConnect() routine a SocketException is thrown (and not caught). I would assume, that the catch (Exception e) should catch ALL exceptions but somehow the SocketException was not caught and shows up to the GUI application. protected void DoConnect() { // client = new TcpClient(); client.NoDelay = true; // In the following call the SocketException is thrown client.Connect(endPoint.Address.ToString(), endPoint.Port); // ... (login stuff) } The doc confirmed that SocketException extends Exception. The stacktrace that showed up is: TcpClient.Connect() -> DoConnect() -> timClock_TimerCallback So the exception is not thrown outside the try/catch block. Any ideas why it doesn't work?

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• Properties vs. Fields: Need help grasping the uses of Properties over Fields.

  - by pghtech

  First off, I have read through a list of postings on this topic and I don't feel I have grasped properties because of what I had come to understand about encapsulation and field modifiers (private, public..ect). One of the main aspects of C# that I have come to learn is the importance of data protection within your code by the use of encapsulation. I 'thought' I understood that to be because of the ability of the use of the modifiers (private, public, internal, protected). However, after learning about properties I am sort of torn in understanding not only properties uses, but the overall importance/ability of data protection (what I understood as encapsulation) within C#. To be more specific, everything I have read when I got to properties in C# is that you should try to use them in place of fields when you can because of: 1) they allow you to change the data type when you can't when directly accessing the field directly. 2) they add a level of protection to data access However, from what I 'thought' I had come to know about the use of field modifiers did #2, it seemed to me that properties just generated additional code unless you had some reason to change the type (#1) - because you are (more or less) creating hidden methods to access fields as opposed to directly. Then there is the whole modifiers being able to be added to Properties which further complicates my understanding for the need of properties to access data. I have read a number of chapters from different writers on "properties" and none have really explained a good understanding of properties vs. fields vs. encapsulation (and good programming methods). Can someone explain: 1) why I would want to use properties instead of fields (especially when it appears I am just adding additional code 2) any tips on recognizing the use of properties and not seeing them as simply methods (with the exception of the get;set being apparent) when tracing other peoples code? 3) Any general rules of thumb when it comes to good programming methods in relation to when to use what? Thanks and sorry for the long post - I didn't want to just ask a question that has been asked 100x without explaining why I am asking it again.

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• How do I setup NInject? (i.e.

  - by Greg

  Hi, I'm getting confused in the doco how I should be setting up Ninject. I'm seeing different ways of doing it, some v2 versus v1 confusion probably included... Question - What is the best way in my WinForms application to set things up for NInject (i.e. what are the few lines of code required). I'm assuming this would go into the MainForm Load method. In other words what code do I have to have prior to getting to: Bind<IWeapon>().To<Sword>(); I have the following code, so effectively I just want to get clarification on the setup and bind code that would be required in my MainForm.Load() to end up with a concrete Samurai instance? internal interface IWeapon { void Hit(string target); } class Sword : IWeapon { public void Hit(string target) { Console.WriteLine("Chopped {0} clean in half", target); } } class Samurai { private IWeapon _weapon; [Inject] public Samurai(IWeapon weapon) { _weapon = weapon; } public void Attack(string target) { _weapon.Hit(target); } } thanks

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• Android AlertDialog clicking Positive and Negative just dismiss

  - by timmyg13

  Trying to have a sharedpreference where you click on it to restore default values, then an alert dialog comes up to ask if you are sure, but it is not doing anything, just dismissing the alertdialog. public class SettingsActivity extends PreferenceActivity implements OnSharedPreferenceChangeListener { /** Called when the activity is first created. */ @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); c = this; addPreferencesFromResource(R.xml.settings); SharedPreferences sp = PreferenceManager .getDefaultSharedPreferences(this); sp.registerOnSharedPreferenceChangeListener(this); datasource = new PhoneNumberDataSource(this); Preference restore = (Preference) findPreference("RESTORE"); restore.setOnPreferenceClickListener(new OnPreferenceClickListener() { @Override public boolean onPreferenceClick(Preference preference) { createDialog(); return false; } }); } void createDialog() { Log.v("createDialog", ""); FrameLayout fl = new FrameLayout(c); AlertDialog.Builder b = new AlertDialog.Builder(c).setView(fl); b.setTitle("Restore Defaults?"); b.setPositiveButton("Restore", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface d, int which) { Log.v("restore clicked:", ""); } }); b.setNegativeButton("Cancel", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface d, int which) { Log.v("cancel clicked:", ""); d.dismiss(); } }).create(); b.show(); } } Neither the "cancel clicked" nor "restore clicked" show in the log. I do get a weird "W/InputManagerService(64): Window already focused, ignoring focus gain of: com.android.internal.view.IInputMethodClient$Stub$Proxy@450317b8" in the log.

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• Call to undefined function 'Encrypt' - Attempting to Link OMF Lib

  - by Changeling

  I created a DLL using Visual Studio 2005 VC++ and marked a function for export (for testing). I then took the .LIB file created, and ran it through the COFF2OMF converter program bundled with Borland C++ Builder 5 and it returns the following: C:\>coff2omf -v -lib:ms MACEncryption.lib MACEncryption2.lib COFF to OMF Converter Version 1.0.0.74 Copyright (c) 1999, 2000 Inprise Corporat ion Internal name Imported name ------------- ------------- ??0CMACEncryptionApp@@QAE@XZ ?Decrypt@CMACEncryptionApp@@QAEXXZ Encrypt Encrypt@0 I added the MACEncryption2.lib file to my C++ Builder 5 Project by going to Project-Add to Project.. and selecting the library. The application links, but it cannot find the Encrypt function that I am declaring for export as follows in the VC++ code: extern "C" __declspec(dllexport) BSTR* __stdcall Encrypt() { CoInitialize(NULL); EncryptionManager::_EncryptionManagerPtr pDotNetCOMPtr; HRESULT hRes = pDotNetCOMPtr.CreateInstance(EncryptionManager::CLSID_EncryptionManager); if (hRes == S_OK) { BSTR* str = new BSTR; BSTR filePath = (BSTR)"C:\\ICVER001.REQ"; BSTR encrypt = (BSTR)"\"test"; pDotNetCOMPtr->EncryptThirdPartyMessage(filePath, encrypt, str); return str; } return NULL; CoUninitialize (); } C++ Builder Code: __fastcall TForm1::TForm1(TComponent* Owner) : TForm(Owner) { Encrypt(); } (Yes I know I am encapsulating another DLL.. I am doing this for a reason since Borland can't 'see' the .NET DLL definitions) Can anyone tell me what I am doing wrong so I can figure out why Builder cannot find the function Encrypt() ?

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• Boost causes an invalid block while overloading new/delete operators

  - by user555746

  Hi, I have a problem which appears to a be an invalid memory block that happens during a Boost call to Boost:runtime:cla::parser::~parser. When that global delete is called on that object, C++ asserts on the memory block as an invalid: dbgdel.cpp(52): /* verify block type */ _ASSERTE(_BLOCK_TYPE_IS_VALID(pHead->nBlockUse)); An investigation I did revealed that the problem happened because of a global overloading of the new/delete operators. Those overloadings are placed in a separate DLL. I discovered that the problem happens only when that DLL is compiled in RELEASE while the main application is compiled in DEBUG. So I thought that the Release/Debug build flavors might have created a problem like this in Boost/CRT when overloading new/delete operators. So I then tried to explicitly call to _malloc_dbg and _free_dbg withing the overloading functions even in release mode, but it didn't solve the invalid heap block problem. Any idea what the root cause of the problem is? is that situation solvable? I should stress that the problem began only when I started to use Boost. Before that CRT never complained about any invalid memory block. So could it be an internal Boost bug? Thanks!

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• How do I properly display all content in a JTabbedPane?

  - by maleki

  I am nesting a JPanel inside a JTabbedPane. I am having trouble displaying all the content inside of the JTabbedPane. The outside borders of the internal content get chopped off. I am currently not using a Layout Manager for my JTabbedPane or dummy Panel because it stretches my content automatically. How do I add a JPanel inside the JTabbedPane so that I can have an even border around all the content.My attempts to create a dummy panel and setting a border for the inner panel using BorderFactory haven't worked. Is there a convention that I need to know to do this correctly? JTabbedPane tabPane = new JTabbedPane(); GridPane tab1 = new GridPane(); GridPane tab2 = new GridPane(); tabPane.add("My Pieces",tab1); tabPane.add("Opponent Pieces",tab2); public class GridPane extends JPanel { public GridPane() { this.setPreferredSize(new Dimension(400,160)); this.setLayout(new GridLayout(4,10)); this.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT); for (int i = 0; i < 4; i++) { for (int j = 0; j < 10; j++) { boardSquares[i][j] = new JPanel(); boardSquaresArr.add(boardSquares[i][j]); this.add(boardSquares[i][j]); } } } }

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• Renaming TurboGears 2's Repoze Fields with TGAdmin

  - by William Chambers

  I've been working on renaming TurboGears 2's Repoze 'groups' field to 'roles' to free the namespace and db tables for other purposes. Also roles makes much more sense to me then groups because I have a strong Drupal background. Now I have found some of the docs to do this such as these: http://www.turbogears.org/2.1/docs/main/Auth/Customization.html#customizing-the-model-structure-assumed-by-the-quickstart http://code.gustavonarea.net/repoze.what-quickstart/#customizing-the-model-definition However these only go part of the way. I have made (I'm pretty sure at least, I've double checked a few times.) all the changes required as you can see in this diff. This seems to work fine however I've ran into a rather major issue with the TurboGears Admin system. I've tried http://turbogears.org/2.0/docs/main/Extensions/Admin/index.html and it didn't seem to make any difference, however I'm not 100% sure I did it correctly. The problem occurs when I attempt to go to localhost/admin/permissions/. It causes a Internal Server Error and outputs the following error. http://pastebin.com/YWMH3SiU This error does not happen on the Roles/Users pages and the permissions /edit/1 also works. I'm running kubuntu 10.04 with TG 2.1b2. (I'm running the beta mostly for easier mako support which is really important.) Any help would be very appreciated.

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• Why is setting HTML5's CanvasPixelArray values is ridiculously slow and how can I do it faster?

  - by Nixuz

  I am trying to do some dynamic visual effects using the HTML 5 canvas' pixel manipulation, but I am running into a problem where setting pixels in the CanvasPixelArray is ridiculously slow. For example if I have code like: imageData = ctx.getImageData(0, 0, 500, 500); for (var i = 0; i < imageData.length; i += 4){ imageData.data[index] = buffer[i]; imageData.data[index + 1] = buffer[i]; imageData.data[index + 2] = buffer[i]; } ctx.putImageData(imageData, 0, 0); Profiling with Chrome reveals, it runs 44% slower than the following code where CanvasPixelArray is not used. tempArray = new Array(500 * 500 * 4); imageData = ctx.getImageData(0, 0, 500, 500); for (var i = 0; i < imageData.length; i += 4){ tempArray[index] = buffer[i]; tempArray[index + 1] = buffer[i]; tempArray[index + 2] = buffer[i]; } ctx.putImageData(imageData, 0, 0); My guess is that the reason for this slowdown is due to the conversion between the Javascript doubles and the internal unsigned 8bit integers, used by the CanvasPixelArray. Is this guess correct? Is there anyway to reduce the time spent setting values in the CanvasPixelArray?

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• Unit test complex classes with many private methods

  - by Simon G

  Hi, I've got a class with one public method and many private methods which are run depending on what parameter are passed to the public method so my code looks something like: public class SomeComplexClass { IRepository _repository; public SomeComplexClass() this(new Repository()) { } public SomeComplexClass(IRepository repository) { _repository = repository; } public List<int> SomeComplexCalcualation(int option) { var list = new List<int>(); if (option == 1) list = CalculateOptionOne(); else if (option == 2) list = CalculateOptionTwo(); else if (option == 3) list = CalculateOptionThree(); else if (option == 4) list = CalculateOptionFour(); else if (option == 5) list = CalculateOptionFive(); return list; } private List<int> CalculateOptionOne() { // Some calculation } private List<int> CalculateOptionTwo() { // Some calculation } private List<int> CalculateOptionThree() { // Some calculation } private List<int> CalculateOptionFour() { // Some calculation } private List<int> CalculateOptionFive() { // Some calculation } } I've thought of a few ways to test this class but all of them seem overly complex or expose the methods more than I would like. The options so far are: Set all the private methods to internal and use [assembly: InternalsVisibleTo()] Separate out all the private methods into a separate class and create an interface. Make all the methods virtual and in my tests create a new class that inherits from this class and override the methods. Are there any other options for testing the above class that would be better that what I've listed? If you would pick one of the ones I've listed can you explain why? Thanks

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• Ruby and duck typing: design by contract impossible?

  - by davetron5000

  Method signature in Java: public List<String> getFilesIn(List<File> directories) similar one in ruby def get_files_in(directories) In the case of Java, the type system gives me information about what the method expects and delivers. In Ruby's case, I have no clue what I'm supposed to pass in, or what I'll expect to receive. In Java, the object must formally implement the interface. In Ruby, the object being passed in must respond to whatever methods are called in the method defined here. This seems highly problematic: Even with 100% accurate, up-to-date documentation, the Ruby code has to essentially expose its implementation, breaking encapsulation. "OO purity" aside, this would seem to be a maintenance nightmare. The Ruby code gives me no clue what's being returned; I would have to essentially experiment, or read the code to find out what methods the returned object would respond to. Not looking to debate static typing vs duck typing, but looking to understand how you maintain a production system where you have almost no ability to design by contract. Update No one has really addressed the exposure of a method's internal implementation via documentation that this approach requires. Since there are no interfaces, if I'm not expecting a particular type, don't I have to itemize every method I might call so that the caller knows what can be passed in? Or is this just an edge case that doesn't really come up?

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• What is the best way to deserialize generics written with a different version of a signed assembly?

  - by Rick Minerich

  In other cases it has been suggested that you simply add a SerializationBinder which removes the version from the assembly type. However, when using generic collections of a type found in a signed assembly, that type is strictly versioned based on its assembly. Here is what I've found works. internal class WeaklyNamedAssemblyBinder : SerializationBinder { public override Type BindToType(string assemblyName, string typeName) { ResolveEventHandler handler = new ResolveEventHandler(CurrentDomain_AssemblyResolve); AppDomain.CurrentDomain.AssemblyResolve += handler; Type returnedType; try { AssemblyName asmName = new AssemblyName(assemblyName); var assembly = Assembly.Load(asmName); returnedType = assembly.GetType(typeName); } catch { returnedType = null; } finally { AppDomain.CurrentDomain.AssemblyResolve -= handler; } return returnedType; } Assembly CurrentDomain_AssemblyResolve(object sender, ResolveEventArgs args) { string truncatedAssemblyName = args.Name.Split(',')[0]; Assembly assembly = Assembly.Load(truncatedAssemblyName); return assembly; } } However, causing the binding process to change globally seems rather dangerous to me. Strange things could happen if serialization was happening in multiple threads. Perhaps a better solution is to do some regex manipulation of the typeName? What do you think?

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• Dealing with Imprecise Drawing in CAD Drawing

  - by Graviton

  I have a CAD application, that allows user to draw lines and polygons and all that. One thorny problem that I face is user drawing can be highly imprecise, for example, a user might want to draw two rectangles that are connected to each other. Hence there should be one line shared by two rectangles. However, it's easy for user to, instead of draw a line, draw two lines that are very close to each other, so close to each other that when look from the screen, you would be mistaken that they are the same line, except that they aren't when you zoom in a little bit. My application would require user to properly draw the lines ( or my preprocessing must be able to do auto correction), or else my internal algorithm would not be able to process the inputs correctly. What is the best strategy to combat this kind of problem? I am thinking about rounding the point coordinates to a certain degree of precision, but although I can't exactly pinpoint the problem of this approach, but I feel that this is not the correct way of doing things, that this will introduce a new set of problem. Any idea?

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• How to restrict access to a class's data based on state?

  - by Marcus Swope

  In an ETL application I am working on, we have three basic processes: Validate and parse an XML file of customer information from a third party Match values received in the file to values in our system Load customer data in our system The issue here is that we may need to display the customer information from any or all of the above states to an internal user and there is data in our customer class that will never be populated before the values have been matched in our system (step 2). For this reason, I would like to have the values not even be available to be accessed when the customer is in this state, and I would like to have to avoid some repeated logic everywhere like: if (customer.IsMatched) DisplayTextOnWeb(customer.SomeMatchedValue); My first thought for this was to add a couple interfaces on top of Customer that would only expose the properties and behaviors of the current state, and then only deal with those interfaces. The problem with this approach is that there seems to be no good way to move from an ICustomerWithNoMatchedValues to an ICustomerWithMatchedValues without doing direct casts, etc... (or at least I can't find one). I can't be the first to have come across this, how do you normally approach this? As a last caveat, I would like for this solution to play nice with FluentNHibernate :) Thanks in advance...

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• razor websites not working and all dlls are present

  - by Michael Tot Korsgaard

  I've uploaded a .cshtml website to a surftown server, and I got some problems running the code. But I have a problem with it running the Razor code. This is how the page renders:(Default.cshtml) I've already checked for internal communication problems. And this is my result: But then why isn't it working, and how can I fix it? I've heard that it can be a problem with views but how whould I fix this if that's the case? My websites folder tree: (And some files too) App_Code App_Data packages Microsoft.AspNet.Razor.2.0.20710.0 Microsoft.Asp.Net.WebPages.2.0.20710.0 Microsoft.Asp.Net.WebPages.Administration.2.0.20710.0 Microsoft.Asp.Net.WebPages.Data.2.0.20710.0 Microsoft.Asp.Net.WebPages.WebData.2.0.20710.0 Microsoft.Web.Infrastructure.1.0.0.0 NuGet.Core.1.6.2 bin packages jQuery.2.0.3 Content Scripts Tools Microsoft.AspNet.Mvc.4.0.30506.0 lib net40 Microsoft.AspNet.Razor.2.0.30506.0 lib net40 Microsoft.AspNet.WebPages.2.0.30506.0 lib net40 Pages Chapters Read.cshtml Edit Move Chapter.cshtml Entry.cshtml Entries EnterEntry.cshtml EnterNote.cshtml Login Login.cshtml Search Result.cshtml Scripts Addons TinyMCE Styles CSS Views _Layout.cshtml Default.cshtml My web.config file looks like this: <?xml version="1.0"?> <configuration> <system.web> <compilation debug="true" targetFramework="4.0"> <buildProviders> <add extension=".cshtml" type="System.Web.WebPages.Razor.RazorBuildProvider, System.Web.WebPages.Razor"/> </buildProviders> <assemblies> <add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/> </assemblies> </compilation> </system.web> <connectionStrings> <add connectionString="database connection" providerName="System.Data.SqlClient"/> </connectionStrings> </configuration> EDIT: Is it a problem that all my files are .cshtml?

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• x86 .net application with system.OutOfMemoryException

  - by Allen

  Hi,Guys I got OutOfMemoryException after the app running for 1 day, the app totally use 1.5G memory , all consumed by managed heap, gen 2 used 200mb , and LOB used 1.3mb, however the weired thing is, 900mb of space are Free. from perf counter I saw there had number of gen 2 gc collection happened, why GC collector cannot collect those 900mb free space in gen2 and LOB? I'm really appreicate for your help. following info are from windbg: 0:000> !eeheap -gc Number of GC Heaps: 1 generation 0 starts at 0x183153f0 generation 1 starts at 0x182aa834 generation 2 starts at 0x02131000 ephemeral segment allocation context: none segment begin allocated size 02130000 02131000 0312f284 0xffe284(16769668) 07750000 07751000 0874fc5c 0xffec5c(16772188) 09e30000 09e31000 0ae2fc2c 0xffec2c(16772140) 0b230000 0b231000 0c22ffec 0xffefec(16773100) 0c230000 0c231000 0d22f6f0 0xffe6f0(16770800) 0d230000 0d231000 0e22ea10 0xffda10(16767504) 0e230000 0e231000 0f22c1c4 0xffb1c4(16757188) 10390000 10391000 1138ddf4 0xffcdf4(16764404) 154e0000 154e1000 164da90c 0xff990c(16750860) 34aa0000 34aa1000 35a9dbfc 0xffcbfc(16763900) 7aca0000 7aca1000 7bc9edfc 0xffddfc(16768508) 49760000 49761000 4a75ef64 0xffdf64(16768868) 7bca0000 7bca1000 7cc99bac 0xff8bac(16747436) 17a70000 17a71000 183313fc 0x8c03fc(9176060) Large object heap starts at 0x03131000 segment begin allocated size 03130000 03131000 041250c8 0xff40c8(16728264) 08920000 08921000 099102f8 0xfef2f8(16708344) .... .... 4c760000 4c761000 4d71d578 0xfbc578(16500088) 1bb10000 1bb11000 1ca110d0 0xf000d0(15728848) 57760000 57761000 5862d7f8 0xecc7f8(15517688) Total Size: Size: 0x5ab13450 (1521562704) bytes. ------------------------------ GC Heap Size: Size: 0x5ab13450 (1521562704) bytes. 0:000> !dumpheap -stat total 0 objects Statistics: MT Count TotalSize Class Name 73037c78 1 12 System.Configuration.GenericEnumConverter 73036da0 1 12 System.Configuration.InfiniteIntConverter .... .... 69161c3c 35025 6809420 System.Windows.EffectiveValueEntry[] 69164748 54 12471072 MS.Internal.WeakEventTable+EventKey[] 710e2228 9540 190389260 System.Byte[] 710dd2b8 1317031 339257932 System.String 0035a670 6427 902224056 Free Total 3615631 objects

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• Execute less compiler anywhere on the computer

  - by Xenioz

  I'm having a little problem with executing *.cmd files so I can execute them anywhere on the computer with cmd. What I exactly want is to execute the less.cmd file, which support optional arguments and uses lessc.wsf (Less.js compiler for Windows Script Host) for converting less css to pure css. The less.cmd contains: ::For convenience @cscript //nologo "%~dp0lessc.wsf" %* What I've done so far: added absolute path to lessc.cmd to the PATH system variable and moved .cmd in the PATHTEXT system variable to the beginning. Also did this: From a command prompt; assoc .bat should return with ..bat=batfile If not assoc .bat=batfile to restore the default file type association. ftype batfile should return with batfile="%1" %* If not ftype batfile="%1" %* to restore the default "Open" action for the file type. This still doesn't work unless I approach the cmd file with a absolute path in cmd, if I enter lessc anywhere else then I get C:\Intel Intel is not recognized as an internal or external command, operable program or batch file. , I've restarted my computer more than once to be sure changes will take effect. I hope somebody has the answer.

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• Adding a selection box into an ItemsControl?

  - by Jens

  I have a WPF ItemsControl with a Canvas ItemPanel. Drawing from an internal source, it displays lots of automatically generated Rectangles. As of now, it looks like this: <Window // .. NameSpaces > <Window.Resources> <DataTemplate x:Key="binTemplate"> <Rectangle x:Name="Rect" VerticalAlignment="Bottom" Canvas.Left="10" StrokeThickness="0"> // .. Databinding Height, Width, etc </Rectangle> </DataTemplate> </Window.Resources> <DockPanel x:Name="LayoutRoot" LastChildFill="True"> <ItemsControl ItemsSource="{Binding Bins}" ItemTemplate="{StaticResource binTemplate}"> <ItemsControl.ItemsPanel> <ItemsPanelTemplate> <Canvas MouseDown="Canvas_MouseDown" MouseMove="Canvas_MouseMove" MouseUp="Canvas_MouseUp"> <Rectangle x:Name="Selection" Canvas.Left="0" Canvas.Top="0" Visibility="Hidden" /> </Canvas> </ItemsPanelTemplate> </ItemsControl.ItemsPanel> </ItemsControl> </DockPanel> </Window> I now try to implement a selection box, too.. well.. select my Rectangles. =) I tried just adding the box into the ItemsControl PanelTemplate, and controlling it with the Canvas mouse events, but it appears I am not allowed to do so. The error message is "Cannot explicitly modify Children collection of Panel used as ItemsPanel for ItemsControl. ItemsControl generates child elements for Panel." What is the preferred way to implement such behavior? I thought about overlaying another canvas (using negative Margin) and drawing the selection box in there, but that seems like a bad hack. Thanks in advance!

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• DeSerialization doesn't work though i Implement GetObjectData method and Constructor

  - by Punit Singhi

  Hi, I have a static generic dictionary in a class. As static memeber cannot serialized so i have implented ISerializable interface and method GetObjectData to serialize. I have a constructor which will also accept SerializationInfo and StreamingContext to deserliaze the dictionay. Now when i try to serialize and deserialize , it always return 1(thoug i added 2 entries). please find the pseduo code- [Serializable] public class MyClass : ISerializable { internal static Dictionary<long, string> dict = new Dictionary<long,string>(); public void GetObjectData(SerializationInfo info, StreamingContext context) { info.AddValue("static.dic", MyClass1.dict, typeof(Dictionary<long, string>)); } public MyClass(SerializationInfo info, StreamingContext context) { MyClass.dict= (Dictionary<long, string>)info.GetValue("static.dic", typeof(Dictionary<long, string>)); } public void Add() { dict.Add(21, "11"); } public MyClass() { dict.Add(21, "11"); } } public class MyClass { MyClass myClass = new MyClass(); public static void Main() { myClass.Add(); FileStream fileStream = new FileStream("test.binary", FileMode.Create); IFormatter bf = new BinaryFormatter(); bf.Serialize(fileStream, myClass); fileStream.Dispose(); fileStream.Close(); fileStream = new FileStream("test.binary", FileMode.Open); bf = new BinaryFormatter(); myClass = (MyClass1)bf.Deserialize(fileStream); } }

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• Did the Unity Team fix that "generics handling" bug back in 2008?

  - by rasx

  At my level of experience with Unity it might be faster to ask whether the "generics handling" bug acknowledged by ctavares back in 2008 was fixed in a public release. Here was the problem (which might be my problem today): Hi, I get an exception when using .... container.RegisterType(typeof(IDictionary<,), typeof(Dictionary<,)); The exception is... "Resolution of the dependency failed, type = \"IDictionary2\", name = \"\". Exception message is: The current build operation (build key Build Key[System.Collections.Generic.Dictionary2[System.String,System.String], null]) failed: The current build operation (build key Build Key[System.Collections.Generic.Dictionary2[System.String,System.String], null]) failed: The type Dictionary2 has multiple constructors of length 2. Unable to disambiguate. When I attempt... IDictionary myExampleDictionary = container.Resolve(); Here was the moderated response: There are no books that'll help, Unity is a little too new for publishers to have caught up yet. Unfortunately, you've run into a bug in our generics handling. This is currently fixed in our internal version, but it'll be a little while before we can get the bits out. In the meantime, as a workaround you could do something like this instead: public class WorkaroundDictionary : Dictionary { public WorkaroundDictionary() { } } container.RegisterType(typeof(IDictionary<,),typeof(WorkaroundDictionary<,)); The WorkaroundDictionary only has the default constructor so it'll inject no problem. Since the rest of your app is written in terms of IDictionary, when we get the fixed version done you can just replace the registration with the real Dictionary class, throw out the workaround, and everything will still just work. Sorry about the bug, it'll be fixed soon!

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• Remove "Flash" between pages while using Internet Explorer modal boxes

  - by AaronS

  I have an internal web application, that is IE specific, and uses a lot of IE specific modal boxes: (window.showModalDialog). I recently received a request to remove the "flash" when navigating between pages of the site. To accomplish this, I just added a meta transition tag to my master page: <meta http-equiv="Page-Enter" content="blendTrans(duration=0.0)" /> This works perfectly except for the modal boxes. When you launch a modal box, and then move it around, the web page behind it keeps a trail of the modal box instead of re-drawing the web page content. This prevents the user from moving the modal box to read anything that was behind it. Is there a way to prevent the "flash" between pages in an IE specific site and have the site still work with modal boxes? Please note, this is a large and complex site, so re-architecting it to not use modal boxes isn't an option. This is an asp.net, c# web application, and all of my users are using IE 7 and IE 8 if it makes any difference. -Edit- To duplicate this, put the following into an html page, and open it in Internet Explorer: <html> <head> <title>Test</title> <meta content="blendTrans(duration=0.0)" http-equiv="Page-Exit"> </head> <body> <script language="javascript"> window.showModalDialog('modal.htm', window); </script> </body> </html>

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