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• C - Discard the edges of an arbitrary level of a multidimensional array

  - by Medivh

  I have some geographical data, that I'm trying to parse into a usable format. The data is kept in NetCDF files, and is read out as a multidimensional array. My problem comes because the source of the geographical data has a strip of longitude on each side of the grid that overlaps the other side. That is, I have a longitude point of -1 degree, and another of 361 degrees. Unfortunately, I've got time, latitude, and sometimes height as dimensions in this array as well, and I have no way of predicting in advance where each dimension will be in the list (or if it's a three dimensional array, or a four dimensional array). Further complicating the problem, the array can be of floats, doubles or integers, so I have to pass it around as a void. Are there any NetCDF tools that I can use to pre-prepare the files? If not, how would you suggest I go about stripping the excess longitudes?

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• Security for web services only used from a Silverlight application?

  - by Lasse V. Karlsen

  I have googled a bit for how I should handle security in a web service application when the application is basically the data repository for a Silverlight application, but have gotten inconclusive results. The Silverlight application is not supposed to have its own user authentication, since it will be reachable only through a web application that the user have already authenticated to get into. As such, I was thinking I could simply add a parameter to the SL application that is a cookie-type value, with a certain lifetime, linked to the user in the database. The SL application would then have to pass this value alongside other parameters to the web services. Since the web service is hopefully going to be a generic web service endpoint, few methods, adding an extra parameter at this level will not be a problem. But, am I supposed to roll this system on my own? It sounds to me as this isn't exactly new features that nobody has considered before, so what are my options?

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• DependencyProperty Orientation problem

  - by byte

  I am learning WPF and am trying to create my first UserControl. My UserControl consists of StackPanel StackPanel contains a Label and TextBox I am trying to create two Dependency Properties Text for the Label Orientation for the StackPanel - The orientation will affect the position of the Label and TextBox effectively I have successfully created a Text dependency property and bind it to my UserControls . But when I created the Orientation property, I seem to get following error in get property The as operator must be used with a reference type or nullable type ('System.Windows.Controls.Orientation' is a non-nullable value type) public static DependencyProperty OrientationProperty = DependencyProperty.Register("Orientation", typeof(System.Windows.Controls.Orientation), typeof(MyControl), new PropertyMetadata((System.Windows.Controls.Orientation)(Orientation.Horizontal))); public Orientation Orientation { get { return GetValue(OrientationProperty) as System.Windows.Controls.Orientation; } set { SetValue(OrientationProperty, value); } } Appreciate your help.

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• Tell me how to use ActiveRecord#after_add

  - by Small Wolf

  Hey,Guys! Now I hava a problem,how can I make the callback#after_add receive a reference to the join model in a has_many :through association? my code like this: class Emergency has_many :departments, :through => :eme_references, :after_add => Proc.new { |eme_reference| eme_reference.eme_flag = 1} end the attribute eme_flag is the model EmeReference's attribute! but in the block ,i get the eme_reference.class is Emergency. I want to set the attribute eme_flag of the model EmeReference. That is my question! cheers!

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• How can my application submit salesforce case with custom fields?

  - by Aaron

  I have an application that submits bugs for multiple customers to multiple destinations. I would like this application to include salesforce as a destination. I have web reference to the Enterprise WSDL and I am able to create cases for salesforce. This works great until I want to include user defined custom fields as part of the case. The custom fields are strongly typed with a __c prefix for my instance of salseforce. But I will not have the liberty of updating my web service with my customers instance of salesforce. How can I submit a salesforce case with custom fields that are not defined in the WSDL? Should I not be using the Enterprise WSDL?

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• wcf service on mobile 5.0

  - by user554271

  hi everyone, I have writed a primitive wcf (vs 2010) service and created proxy files by svcutil. Later I created a mobile project on vs2008 and added proxy files on project but this error occured. Error 1 The type or namespace name 'ServiceContractAttribute' does not exist in the namespace 'System.ServiceModel' (are you missing an assembly reference?) C:\Users\Abb\Documents\Visual Studio 2008\Projects\WCF\MobileService\MobileClient\Sample.cs the proxy files runs well on console application (vs 2008) but there is errors on mobile. System.ServiceModel doesnot support ServiceContractAttribute.

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• How can I convert a specific .cs file into either a .bat or a .exe file?

  - by user2974969

  I am trying to convert around 1,900 .txp files (a proprietary Sony image format) to .png. However, the .exe program I am using to convert these files only allows me to select one file at a time. I am running Windows 7. There's a TXP.CS file in the 'src' folder of the program, so I figured that if I was able to turn that into an executable file, I'd be able to use it to mass convert these files to PNG. However, whenever I try to convert the file using csc.exe, I get the CS0246 error (the type or namespace name 'Tools' could not be found. Are you missing a using directive or an assembly reference?). I can't use Microsoft Visual Studio right now, so I'm hoping someone can walk me through this, or maybe convert the file to either a .bat or an .exe for me. Thank you. TXP.CS

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• Have visual studio copy x64 DLL or x86 DLL when building a C# project

  - by MrPurpleStreak

  We're building a C# app that uses an external DLL for Sqlite.NET. This is a .NET dll but it embeds a C dll inside it and so it comes in x86 and x64 flavours. We add a reference to the x86 version in the project so when we build and run on x86 it's fine. Visual studio copies the dll to the bin folder and runs. On x64 it still copies the x86 version of course and then when it runs it fails to load it. We get round this by temporarily setting our project to be x86 only, but ideally we'd like to tell visual studio to copy the correct version depending on which flavour of machine it is. Any ideas how?

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• nodejs, mongodb - How do I operate on data from multiple queries?

  - by Ryan

  Hi all, I'm new to JS in general, but I am trying to query some data from MongoDB. Basically, my first query retrieves information for the session with the specified session id. The second query does a simple geospacial query for documents with a location near the specified location. I'm using the mongodb-native javascript driver. All of these query methods return their results in callbacks, so they're non-blocking. This is the root of my troubles. What I'm needing to do is retrieve the results of the second query, and create an Array of sessionIds of all the returned documents. Then I'm going to pass those to a function later. But, I can't generate this array and use it anywhere outside the callback. Does anyone have any idea how to properly do this? http://dpaste.org/wXiE/

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• 'Generating code' and stop in building release mode (Visual Studio 2005 )

  - by cchcc

  Hi! I have a problem about release build I'm using Visual Studio 2005. The project is worked on MFC When I build the project what I working in debug mode, It builds done successfully. but in release mode, Output window shows next 1Compiling resources... 1Linking... 1Generating code and then.. it doesn't pass. It seems like be stoped. After 20 min ,I just canceld build. It has been built well before. I just added some files(.h .cpp) and resorces(.bmp), not special code and it happened. Do you have any idea about that? please help me

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• python unit testing os.remove fails file system

  - by hwjp

  Am doing a bit of unit testing on a function which attempts to open a new file, but should fail if the file already exists. when the function runs sucessfully, the new file is created, so i want to delete it after every test run, but it doesn't seem to be working: class MyObject_Initialisation(unittest.TestCase): def setUp(self): if os.path.exists(TEMPORARY_FILE_NAME): try: os.remove(TEMPORARY_FILE_NAME) except WindowsError: #TODO: can't figure out how to fix this... #time.sleep(3) #self.setUp() #this just loops forever pass def tearDown(self): self.setUp() any thoughts? The Windows Error thrown seems to suggest the file is in use... could it be that the tests are run in parallel threads? I've read elsewhere that it's 'bad practice' to use the filesystem in unit testing, but really? Surely there's a way around this that doesn't invole dummying the filesystem?

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• WPF MVVM - Correct way to consume a web service asynchronously

  - by byte

  I have implemented MVVM in my WPF application. I was wondering what is the correct way to consume a Web Service from WPF MVVM app. So far, I have created a DataAccess interface and a class that implements this interface. This would serve as a facade / proxy to the web service. The ViewModel gets a reference to this class as the constructor parameter so it can make any calls to get/set data, in this case it will be a Web service call. I would appreciate if you can guide me with some hints and / or direct me to some online resource.

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• How to build website with two speaking language (Arabic and English)?

  - by Alex

  hi, I am beginner in web designing, I using CLASSIC ASP for web development. My client need his website in two languages (Arabic and English). What is the best way for develop website in multiple language? I read some information from website's :- Create website in two lanuages. for example (www.example.com/English/)and (www.example.com/Arabic/) 2.Use transilaters(Google,SpeakFish,etc..) for your default website. Anyone can help me for this which is the suitable way for develop website in multiple languages? Any reference or any links? hoping your help

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• Windows service Null ReferenceException

  - by Patrick

  I built a windows service on my local machine. when I install and run it locally it works perfectly fine. When I try to move it to my production machine I get a null reference exception error. I've created an installation package that also works perfectly fine on my machine, but when i run it on the production machine the service still fails. The service references a .dll that in turn has references to 3 other dlls. when i build the project it pulls all of the dlls into the debug folder for the project... I've even installed the service from that folder and it works localy on my machine. I know this has to have something to do with the references, but this is beyond me. Any tips/hints would be appreciated.

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• Linux script to kill process listening on a particular port

  - by Evgeny

  I have a process that listens on a TCP port (?0003). From time to time it crashes - badly. It stops working, but continues hogging the port for some time, so I can't even restart it. I'm looking to automate this. What I do right now is: netstat -ntlp |grep -P "\*\:\d0003" To see what the PID is and then: kill -9 <pid> Does anyone have a script (or EXE for that matter) that would link the two steps together, ie. parse the PID from the first command and pass it to the second?

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• Best practice for passing configuration to each GUI object

  - by Laimoncijus

  Hi, I am writing an application, where I do have few different windows implemented, where each window is a separate class. Now I need somehow to pass a single configuration object to all of them. My GUI is designed in way, where I have one main window, which may create some child windows of its own, and these child windows can have their own childs (so there is no possibility to create all windows in initialization part and feed the config object to all of them from the very beginning)... What would be best practice for sharing this configuration object between them? Always passing via constructor or maybe making it somewhere as final public static and let each window object to access it when needed? Thanks

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• .NET C# MouseEnter listener on a Control WITH Scrollbar

  - by Run CMD

  As long as the mouse is over a specific control, we show some form. When the mouse leaves the control, we hide the control after a small timeout. This is standard hover behavior. However, when a control (for example a Treeview) has a scrollbar, and the mouse is ON or OVER the scrollbar, the events don't fire ... If we could get a reference to the scrollbar control, this would solve our problem, as we would add the same listener events to the scrollbar. However, the scrollbar isn't accessible as far as I know ... How can we solve this problem ?

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• How often do you implement the big three?

  - by Neil Butterworth

  I was just musing about the number of questions here that either are about the "big three" (copy constructor, assignment operator and destructor) or about problems caused by them not being implemented correctly, when it occurred to me that I could not remember the last time I had implemented them myself. A swift grep on my two most active projects indicate that I implement all three in only one class out of about 150. That's not to say I don't implement/declare one or more of them - obviously base classes need a virtual destructor, and a large number of my classes forbid copying using the private copy ctor & assignment op idiom. But fully implemented, there is this single lonely class, which does some reference counting. So I was wondering am I unusual in this? How often do you implement all three of these functions? Is there any pattern to the classes where you do implement them?

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• Remote stream multiple files in SOLR

  - by Mark

  I want to use SOLR's remote-streaming facility to extract and index the content of files. This works fine if I pass stream.file=xxx as a parameter to the http GET method. However, I have a lot of these, and want to batch them up (i.e. not have to have a GET per file). Is there a way I can do this in SOLR? e.g. I'd like to be able to POST some xml like this: <add> <doc stream_file="filename"> <field name="id">123</field> </doc> <doc>...

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• Passing a variable to javascript via a link.

  - by Jon

  My website has a javascript variable (addselectedsubdivision) that loads a neighborhood name from a box on the left to a box on the right. I was hoping I could build a link and then us PHP to add the subdivision letter, neighborhood, and city so that when you click on the link it goes right to this page and loads the neighborhood name in the box on the right. However, I can't get the variable to pass to the new page. Any suggestions? Website: http://www.mlsfinder.com/va_rein/jonmcachran/index.cfm?primarySearchType=sold&searchType=subdivision&so=a&domain=www.jonsellsvb.com&subdivision_string=p Example link: <a href="http://www.mlsfinder.com/va_rein/jonmcachran/index.cfm?primarySearchType=sold&searchType=subdivision&so=a&domain=www.jonsellsvb.com&subdivision_string=$firstletter" onLoad="addselectedsubdivision($neighborhood||$city);" target="_blank">

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• Auto injecting logger with guice

  - by koss

  With reference to Guice's custom injections article, its TypeListener performs a check for InjectLogger.class annotation - which can be optional. Removing that check will inject to all Logger.class types. class Log4JTypeListener implements TypeListener { public <T> void hear(TypeLiteral<T> typeLiteral, TypeEncounter<T> typeEncounter) { for (Field field : typeLiteral.getRawType().getDeclaredFields()) { if (field.getType() == Logger.class && field.isAnnotationPresent(InjectLogger.class)) { typeEncounter.register(new Log4JMembersInjector<T>(field)); } } } } I'm tempted to remove "&& field.isAnnotationPresent(InjectLogger.class)" from the listener. If we're using Guice to inject all instances of our Logger, is there any reason not to do it automatically (without need to annotate)?

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• 2 or more Controls only 1 is considered Active

  - by Don

  I have 2 controls (MyCtrl) next to each other called ctrlLeft and ctrlRight. Whenever one receives interaction it is considered active (by default the left one). I override OnDraw and customize the look of the active one a bit. Currently I have a property Active and an event that I subscribe to from all MyCtrl in there I store a reference to the active one like this: if (sender is MyCtrl) { ctrlActive = (sender as MyCtrl); ctrlLeft.Active = !(ctrlRight.Active = (ctrlActive == ctrlRight)); } Either way I need to have ctrlActive as I use it for other things but what I am wondering is if this is the best way make them aware of each other? Another option I thought of was to store references to every possible MyCtrl and then loop through em all and activate / deactivate the one that match sender just in case I in the future add a ctrlMiddle. Are my thoughts wrong, is there better options to do this. For example, how does radiobuttons accomplish their similar functionality?

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• Rendering Views as String with Spring MVC and Apache Tiles

  - by lynxforest

  I am trying to reuse some of my tiles in a controller which is returning a json response to the client. I would like to return a json response similar to the following format: { 'success': <true or false>, 'response': <the contents of an apache tile> } In my controller I would like to perform logic similar to this pseudocode: boolean valid = validator.validate(modelObj) String response = "" if(valid){ response = successView.render() // im looking for a way to actually accomplish // this, where the successView is the apache tiles view. // I would also need to pass a model map to the view somehow. }else{ response = errorView.render() } writeJsonResponse(httpResponse, /* a Map whose json representation looks like the one I described above. */)

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• How to look up an NHibernate entity's table mapping from the type of the entity?

  - by snicker

  Once I've mapped my domain in NHibernate, how can I reverse lookup those mappings somewhere else in my code? Example: The entity Pony is mapped to a table named "AAZF1203" for some reason. (Stupid legacy database table names!) I want to find out that table name from the NH mappings using only the typeof(Pony) because I have to write a query elsewhere. How can I make the following test pass? private const string LegacyPonyTableName = "AAZF1203"; [Test] public void MakeSureThatThePonyEntityIsMappedToCorrectTable() { string ponyTable = GetNHibernateTableMappingFor(typeof(Pony)); Assert.AreEqual(LegacyPonyTableName, ponyTable); } In other words, what does the GetNHibernateTableMappingFor(Type t) need to look like?

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• Missing something with Reader monad - passing the damn thing around everywhere

  - by Richard Huxton

  Learning Haskell, managing syntax, have a rough grasp of what monads etc are about but I'm clearly missing something. In main I can read my config file, and supply it as runReader (somefunc) myEnv just fine. But somefunc doesn't need access to the myEnv the reader supplies, nor do the next couple in the chain. The function that needs something from myEnv is a tiny leaf function. So - how do I get access to the environment in a function without tagging all the intervening functions as (Reader Env)? That can't be right because otherwise you'd just pass myEnv around in the first place. And passing unused parameters through multiple levels of functions is just ugly (isn't it?). There are plenty of examples I can find on the net but they all seem to have only one level between runReader and accessing the environment.

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