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• FMDB transaction

  - by user142764

  Hi ! I use FMDB to wrap SQLite in my app. I haven't found any docs about the use of methods begin, beginUpdates, commit, finalize, etc. I face some problems in my apps which i think are caused by the way i use transactions. Here is what i tried : [FMDB beginUpdates] - My insert statement - [FMDB commit] [FMDB finalize] it crashes with this log : Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[FMDatabase<0xd705a0 finalize]: called when collecting not enabled' Could you please give me an example of how you are using transactions, or point me to a doc ? Thanks in advance, Vincent.

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• Force exceptions language in English

  - by serhio

  My Visual Studio 2005 is a French one, installed on a French OS. All the exceptions I receive during debug or runtime I obtain also in French. Can I however do something that the exceptions messages be in English? For goggling, discussing etc. I tried the following: Thread.CurrentThread.CurrentUICulture = new CultureInfo("en-US"); throw new NullReferenceException(); obtained Object reference not set to an instance of an object. This is, surely, cool... but, as I work on a French project, I will not hardcode forcing Thread.CurrentUICulture to English. I want the English change to be only on my local machine, and don't change the project properties. Is it possible to set the exceptions language without modifying the code of the application? In VS 2008, set the Tools - Options - Environment - International Settings - Language to "English" wnd throwing the same exception obtain the ex message en French, however:

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• Reflection.Emit: How to convert MethodBuilder to RuntimeMethodInfo reliably?

  - by Qwertie

  After generating a type dynamically and calling TypeBuilder.CreateType, I want to create a delegate that points to a method in the new type. But if I use code like loadedType = typeBuilder.CreateType(); myDelegate = (MyDelegate)Delegate.CreateDelegate( typeof(MyDelegate), methodBuilder); Reusing the methodBuilder as a methodInfo, I get the exception "MethodInfo must be a RuntimeMethodInfo". Now normally I can re-acquire the MethodInfo with MethodInfo mi = loadedType.GetMethod(methodBuilder.Name); myDelegate = (MyDelegate)Delegate.CreateDelegate(typeof(MyDelegate), mi); But my class may contain several overloaded methods with the same name. How do I make sure I get the right one? Do methods have some persistent identifier I could look up in loadedType?

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• nHibernate HQL dynamic Instantiation question

  - by Rey

  Hello all, I can't find what's going on with the following nHibernate HQL. here's my VB.Net code: Return _Session.GetNamedQuery("PersonAnthroSummary").SetInt32(0, 2).UniqueResult() My Named Query: <sql-query name="PersonAnthroSummary"> select New PersonAnthroSummary( Anthro.Height, Anthro.Weight ) from PersonAnthroContact as Anthro where Anthro.ID = ? </sql-query> and i am importing the DTO class: <import class="xxxxxxx.DataServices.PersonAnthroSummary, xxxxxxxxx.DataServices"/> PersonAnthroSummary has a constructor that will take height and weight arguments. when i test this, nHibernate throwing following exception: {"Incorrect syntax near 'Anthro'."} and generated QueryString is: "select New PersonAnthroSummary( Anthro.Height, Anthro.Weight ) from PersonAnthroContact as Anthro where Anthro.ID = @p0" Can some one tell me what i'm doing wrong here?

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• Using one sqlconnection/sqlcommand through 2 DB-bound methods

  - by dotnetdev

  I have a class with a method which gets data from a database through a SELECT stored proc. This method uses a SqlDbReader by returning ExecuteReader() on a SqlCommand. The connection and everything is made in this method, with fields (such as connection string) set as class level fields. I now need to populate an array based on the results of this query (so the columns of each row will go into the array with its own index). However, this query will not select all of the data from one table which is involved. I can write the queries to get what I need, but how can I use one connection throughout the class? If I instantiate the connection object and call Open() in the constructor, I get an exception @ runtime. I'm hoping for something like this: // At class level: sqlconn.Open(); // sqlcommand set up Method() { // Fire stored proc // Insert results in a collection } Method2() { // Pass same collection in (use same one), // Add new row columns into same collection } How can I do this with strict performance in mind? Thanks

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• Out of Memory on Update or Delete of Service Reference

  - by Kelly

  I have a Service Reference for a WCF project that has just over a hundred endpoints in my ServiceHost web.config. Every time I attempt to update or delete the Service Reference, it fails with an out of memory exception. I am running Vista Ultimate SP2 64-bit with 8GB RAM. I can work around it by going outside the project and deleting the Service References folder, then coming back in and re-adding the Reference. Is this the only workaround that you know of? Thanks!

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• redis timeout with predis

  - by Patrick

  Hello, I'm using redis with php (predis at http://github.com/nrk/predis/) and am experiencing frequent timeout. The stack trace shows: [04-Apr-2010 03:39:50] PHP Fatal error: Uncaught exception 'Predis_ClientException' with message 'Connection timed out' in redis.php:697 Stack trace: #0 redis.php(757): Predis_Connection->connect() #1 redis.php(729): Predis_Connection->getSocket() #2 redis.php(825): Predis_Connection->writeCommand(Object(Predis_Commands_ListRange)) #3 redis.php(165): Predis_ConnectionCluster->writeCommand(Object(Predis_Commands_ListRange)) #4 redis.php(173): Predis_Client->executeCommandInternal(Object(Predis_ConnectionCluster), Object(Predis_Commands_ListRange)) #5 redis.php(157): Predis_Client->executeCommand(Object(Predis_Commands_ListRange)) #6 [internal function]: Predis_Client->__call('lrange', Array) This happens consistently and I have no idea why. Anyone has any idea?

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• Python encoding for pipe.communicate

  - by Brian M. Hunt

  I'm calling pipe.communicate from Python's subprocess module from Python 2.6. I get the following error from this code: from subprocess import Popen pipe = Popen(cwd) pipe.communicate( data ) For an arbitrary cwd, and where data that contains unicode (specifically 0xE9): Exec. exception: 'ascii' codec can't encode character u'\xe9' in position 507: ordinal not in range(128) Traceback (most recent call last): ... stdout, stderr = pipe.communicate( data ) File "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/subprocess.py", line 671, in communicate return self._communicate(input) File "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/subprocess.py", line 1177, in _communicate bytes_written = os.write(self.stdin.fileno(), chunk) This is happening, I presume, because pipe.communicate() is expecting ASCII encoded string, but data is unicode. Is this the problem I'm encountering, and i sthere a way to pass unicode to pipe.communicate()? Thank you for reading! Brian

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• I'm trying to install Spree on my Mac with Rails 1.9.2 - I'm getting an error message.

  - by william tell

  I'm doing a local install on Mac OSX of Spree (a Ruby-based ecommerce package) following the tutorial on this page. I'm using RVM to run Ruby 1.9.2 and rails 3.0.3. I run "gem install spree" successfully to load spree version 0.40. But when I run "Gem Install Spree" I get the following message. Can anyone help? /Library/Ruby/Site/1.8/rubygems.rb:335:in `bin_path': can't find executable spree for spree-0.40.0 (Gem::Exception) from /usr/bin/spree:19 Also, when I run "Gem list spree" I get an empty list.

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• How to send a reply message to sender machine via serial port using c#

  - by karthik

  I am using the below code to receive the message via serial port which is working fine. Now i need to send back a acknowledgment message to the sender machine. How can send the message ? private void MonitorSP_DataReceived(object sender, SerialDataReceivedEventArgs e) { try { System.IO.Ports.SerialPort SP = (System.IO.Ports.SerialPort)sender; //Get the ports available in system string[] theSerialPortNames = System.IO.Ports.SerialPort.GetPortNames(); string strAvlPortNames = ""; foreach (string s in theSerialPortNames) { strAvlPortNames += s.ToString() + ", "; } //Read an contruct the message Thread.Sleep(1000); string msg = SP.ReadExisting(); string ConstructedMsg = "Port's Found : " + strAvlPortNames + "\n" + "Port Used : " + SP.PortName + "\n" + "Message Received : " + msg; if (InvokeRequired) { richTextBox1.Invoke(new MethodInvoker(delegate { richTextBox1.Text = ConstructedMsg; })); //Send acknowlegement to sender port SP.Write(SP.PortName); return; } } catch (Exception ex) { MessageBox.Show(ex.StackTrace.ToString()); } }

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• problem with trying to create ssms add-in

  - by Karl

  I'm trying to create an add-in for SSMS 2008 and/or 2008 R2 but I've run into a problem straight away. I can get my add-in to work and on SSMS start-up get it to simply show a message box. However, after downloading various code-samples, when trying to reference Microsoft.SqlServer.Management.UI.VSIntegration.ServiceCache I get a null reference exception: Commands2 commands = (Commands2)ServiceCache.ExtensibilityModel.Commands; I get this problem when using SSMS 2008 or SSMS 2008 R2. I'm working on Visual Studio 2010. It's a bit frustrating because I'm keen to learn more about SSMS add-ins but can't seem to get past the few samples out there. Any advice/tips appreciated. Thanks

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• How to remotely control a Windows Service with ServiceController?

  - by Amokrane

  Hi, I'm trying to control Windows Services that are installed in a remote computer. I'm using the ServiceController class. I have this: ServiceController svc = new ServiceController("MyWindowsService", "COMPUTER_NAME"); With this, I can get the status of the Windows Service like this: string status = svc.Status.ToString(); But I can't control the Windows Service (by doing svc.Start(); or svc.Stop();). I get the following exception: Cannot open Servicexxx service on computer 'COMPUTER_NAME' That's normal, I suppose there is something to do with access permissions. But how? I've looked into Google but didn't find what I was looking for. However I often read something related to impersonation, but I don't know what that means. NB: The local and remote computers are both running Win XP Pro. Thanks.

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• SharePoint Custom Application Page does not recognize tagPrefix defined in custom web.config

  - by Hasan Khan

  I have a custom application page integrated in Centeral Administration. My application pages are placed in a subfolder in Template\Admin folder. I placed my own web.config in my subfolder and added tagPrefixes in the control section. However when I open my application page ASP.NET throws the exception that the tag SharePoint:InputFormTextBox was not recognized. Moving the add tagprefix statements in root web.config solves the problem but thats not acceptable in my case and I can't define them in individual pages either. What am I doing wrong? Or it doesn't work this way? What can i do to achieve this?

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• Why can I not deploy my ear on Glassfish

  - by hexin

  I have standard maven project in netbeans (netbeans' enterprise application), that have 1 war, 1 ejb and 1 ear modules. I want to inject with @Inject my @Stateless from ejb to war (REST class) using its interface. I have added some beans.xml files in correct folders in project, but im still getting this: Error occurred during deployment: Exception while loading the app : WELD-001409 Ambiguous dependencies for type [LogicBean] with qualifiers [@Default] at injection point [[field] @Inject private pl.edu.amu.wmi.kino.rk.rest.ReportRest.bean]. Possible dependencies [[Session bean [class pl.edu.amu.wmi.kino.rk.data.impl.LogicBeanImpl with qualifiers [@Any @Default]; local interfaces are [LogicBean], Session bean [class pl.edu.amu.wmi.kino.rk.data.impl.LogicBeanImpl with qualifiers [@Any @Default]; local interfaces are [LogicBean]]]. Please see server.log for more details. What am i doing wrong? I have searched the whole internet, but could not find the solution. I know it is possible because i worked on a project with such a staff. THX for any help:)

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• POST with HTTPBuilder -> NullPointerException?

  - by Stefan Kendall

  I'm trying to make a simple HTTP POST request, and I have no idea why the following is failing. I tried following the examples here, and I don't see where I'm going wrong. Exception java.lang.NullPointerException at groovyx.net.http.HTTPBuilder$RequestConfigDelegate.setBody(HTTPBuilder.java:1131) ... Code def List<String> search(String query, int maxResults) { def http = new HTTPBuilder("mywebsite") http.request(POST) { uri.path = '/search/' body = [string1: "", query: "test"] requestContentType = URLENC headers.'User-Agent' = 'Mozilla/5.0 Ubuntu/8.10 Firefox/3.0.4' response.success = { resp, InputStreamReader reader -> assert resp.statusLine.statusCode == 200 String data = reader.readLines().join() println data } } [] }

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• Downloading PKPass in an iOS custom app from my server

  - by taurus

  I've setup a server which returns a PKPass. If I copy the URL to the browser, a pass is shown (both in my Mac and in my iPhone). The code I'm using to download the pass is the following one: NSData *data = [[NSData alloc] initWithContentsOfURL:[NSURL URLWithString:kAPIPass]]; if (nil != data) { PKPass *pass = [[PKPass alloc] initWithData:data error:nil]; PKAddPassesViewController *pkvc = [[PKAddPassesViewController alloc] initWithPass:pass]; pkvc.delegate = self; [self presentViewController:pkvc animated:YES completion:^{ // Do any cleanup here } ]; } Anyway, when I run this code I have the following error: * Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Only support RGBA or the White color space, this method is a hack.' I don't know what is the bug... The pass seems ok when I download it with Safari and even the code seems ok (there are just 3 simple rows...) Someone experienced with Passkit could help me? EDIT: the weird thing is that the exact same code is working in a fresh new project

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• Try all available WSDL IPs with JAX-WS

  - by Asaf

  I'm using JAX-WS to open a service port. When the DNS exposes two IPs for the DNS entry (of the WSDL), the Service tries to use only the first - resulting in a "Failed to access the WSDL at: http://some.url.com/someDocument?wsdl. It failed with: Connection refused: connect" exception. I've found an issue filed against JAX-WS, but with no resolution. this is the comment that describes my problem best. The code is just a one-liner: Service service = Service.create("http://some.url.com/someDocument?wsdl", engineQName); the smarts is exposing those two A records on http://some.url.com/ at the DNS. Can anyone help? 10x,

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• How to convert culture specific double using TypeConverter?

  - by Christian

  Hi I have a problem with the TypeConverter class. It works fine with CultureInvariant values but cannot convert specific cultures like english 1000 seperators. Below is a small test program that I cannot get to work. using System; using System.Globalization; using System.ComponentModel; namespace TestConvertCulture { class Program { static void Main() { try { var culture = new CultureInfo( "en" ); TypeConverter typeConverter = TypeDescriptor.GetConverter( typeof ( double ) ); double value = (double)typeConverter.ConvertFromString( null, culture, "2,999.95" ); Console.WriteLine( "Value: " + value ); } catch( Exception e ) { Console.WriteLine( "Error: " + e.Message ); } } } }

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• NSZombieEnabled hides EXC_BAD_ACCESS error entirely

  - by David Liu

  So I have a subclass of a UIView that starts causing EXC_BAD_ACCESS errors when I go through a specific set of conditions (run on iPad instead of iPhone or simulator, first login only). It throws the exception when the UIView subclass gets deallocated, during the last line, where I have [super dealloc]. I heard about using NSZombieEnabled, so I tossed that on to see if I could get any more information about it, but now it hides the error completely! Does anyone know a bit more about this type of situation? I thought NSZombie would start spewing stuff into my console like before, but I'm hoping that the nonexistance of errors would tell me some sort of information as well.

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• entity framework inserting a many-to-many relationship between two existing objects while updating

  - by redbluegreen

  I'm trying to do this: using(var context = new SampleEntities()) { User user = select a user from database; //Update user's properties user.Username = ... user.Website = ... //Add a role Role role = select a role from database //trying to insert into table UserRoles which has columns (UserID, RoleID) user.Roles.Add(role); //Apply property changes context.ApplyPropertyChanges("Users", user); context.SaveChanges(); } However, I get an exception telling me that "The existing object in the ObjectContext is in the Added state" and can't "ApplyPropertyChanges". If "ApplyPropertyChanges()" is removed, it adds a User. What orders should these methods be called? I don't need to do them separately right? Thanks.

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• How to get entries from the second level query cache ?

  - by fabien7474

  In my grails application, I want to display all the current entries of the second-level cache from all regions. My code is as following : def getCacheStats() { StatisticsImpl stats = sessionFactory.statistics for (regionName in stats.secondLevelCacheRegionNames) { log.debug stats.getSecondLevelCacheStatistics(regionName).entries } } However everything works fine as long as the region name is not org.hibernate.cache.StandardQueryCache (region used for Query Cache). In that case, an exception is thrown : java.lang.ClassCastException: org.hibernate.cache.QueryKey cannot be cast to org.hibernate.cache.CacheKey Having googling around, I didn't find any clues about how to display the list of entries of the cached query result sets associated with regions StandardQueryCache and UpdateTimestampsCache. Could you please help me find a solution for this?

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• ProductListing based on Attribute in Magento

  - by Keenora Fluffball

  I would like to show "Suggestions" in my product listing in Magento. I made an attribute "Suggestion" which is Yes/No and global active. Now in the listing I would like to show the suggestions first, then some text and stuff, and then the rest of products. I tried it like this: $_productCollection=$this->getLoadedProductCollection() /* .... */ $_productCollection->clear()->addAttributeToFilter('suggestion', 1)->load(); But this ends in an exception: You cannot define a correlation name '_price_rule' more than once Now the question is, how to solve this?

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• C# ArrayList calling on a constructor class

  - by EvanRyan

  I'm aware that an ArrayList is probably not the way to go with this particular situation, but humor me and help me lose this headache. I have a constructor class like follows: class Peoples { public string LastName; public string FirstName; public Peoples(string lastName, string firstName) { LastName = lastName; FirstName = firstName; } } And I'm trying to build an ArrayList to build a collection by calling on this constructor. However, I can't seem to find a way to build the ArrayList properly when I use this constructor. I have figured it out with an Array, but not an ArrayList. I have been messing with this to try to build my ArrayList: ArrayList people = new ArrayList(); people[0] = new Peoples("Bar", "Foo"); people[1] = new Peoples("Quirk", "Baz"); people[2] = new Peopls("Get", "Gad"); My indexing is apparently out of range according to the exception I get.

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• Attribute class not calling constructor

  - by Coppermill

  I have created an Attribute, call MyAttribute, which is performing some security and for some reason the Constructor is not being fired, any reason why? public class Driver { // Entry point of the program public static void Main(string[] Args) { Console.WriteLine(SayHello1("Hello to Me 1")); Console.WriteLine(SayHello2("Hello to Me 2")); Console.ReadLine(); } [MyAttribute("hello")] public static string SayHello1(string str) { return str; } [MyAttribute("Wrong Key, should fail")] public static string SayHello2(string str) { return str; } } [AttributeUsage(AttributeTargets.Method)] public class MyAttribute : Attribute { public MyAttribute(string VRegKey) { if (VRegKey == "hello") { Console.WriteLine("Aha! You're Registered"); } else { throw new Exception("Oho! You're not Registered"); }; } }

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• The .NET ActiveX component with WPF content can't be loaded by non MFC app

  - by lonelyflyer

  I have a legacy delphi program and want to add some content implemented with WPF. So I encapsulate the WPF control with a .NET/ActiveX interop technology. That means something like: [ComRegisterFunction()] public static void RegisterClass(string key); [ComUnregisterFunction()] public static void UnregisterClass(string key); The activeX component is a WinForms User Control and the WPF materials are attached to an ElemenHost in this User Control. It works fine if the host app of this ActiveX is a MFC program even without /clr switch. But my legacy app is a delphi program, and it always throw a stackoverflow exception within the constructor of my WPF user control as the program be started. I have no clue, Google is no help. and it has puzzled me for days.

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