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  • Dynamic populate ComboBox (Flex)

    - by Vinzcent
    Hey, I want to populate a ComboBox after a clicked a button. This is my code: var dpNames:ArrayCollection = new ArrayCollection(); for each(var ca:Categorie in arrCategories) { dpNames.addItem ({label: ca.name, data: ca.value}); } cbWijzigCategorie.dataProvider = dpNames; But when he executes the last line, I alwas get the following error: TypeError: Error #1009: Cannot access a property or method of a null object reference. I have no idea why. Thanks a lot, Vincent

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  • How to fix this Speech Recognition wicked bug?

    - by aF
    I have this code in my C# project: public void startRecognition(string pName) { presentationName = pName; if (WaveNative.waveInGetNumDevs() > 0) { string grammar = System.Environment.GetEnvironmentVariable("PUBLIC") + "\\SoundLog\\Presentations\\" + presentationName + "\\SpeechRecognition\\soundlog.cfg"; if (File.Exists(grammar)) { File.Delete(grammar); } executeCommand(); /// Create an instance of SpSharedRecoContextClass which will be used /// to interface with the incoming audio stream recContext = new SpSharedRecoContextClass(); // Create the grammar object recContext.CreateGrammar(1, out recGrammar); //recContext.CreateGrammar(2, out recGrammar2); // Set up dictation mode //recGrammar2.SetDictationState(SpeechLib.SPRULESTATE.SPRS_ACTIVE); //recGrammar2.SetGrammarState(SPGRAMMARSTATE.SPGS_ENABLED); // Set appropriate grammar mode if (File.Exists(grammar)) { recGrammar.LoadCmdFromFile(grammar, SPLOADOPTIONS.SPLO_STATIC); //recGrammar.SetDictationState(SpeechLib.SPRULESTATE.SPRS_INACTIVE); recGrammar.SetGrammarState(SPGRAMMARSTATE.SPGS_ENABLED); recGrammar.SetRuleIdState(0, SPRULESTATE.SPRS_ACTIVE); } /// Bind a callback to the recognition event which will be invoked /// When a dictated phrase has been recognised. recContext.Recognition += new _ISpeechRecoContextEvents_RecognitionEventHandler(handleRecognition); // System.Windows.Forms.MessageBox.Show(recContext.ToString()); // gramática compilada } } private static void handleRecognition(int StreamNumber, object StreamPosition, SpeechLib.SpeechRecognitionType RecognitionType, SpeechLib.ISpeechRecoResult Result) { string temp = Result.PhraseInfo.GetText(0, -1, true); _recognizedText = ""; // System.Windows.Forms.MessageBox.Show(temp); // System.Windows.Forms.MessageBox.Show(recognizedWords.Count.ToString()); foreach (string word in recognizedWords) { if (temp.Contains(word)) { // System.Windows.Forms.MessageBox.Show("yes"); _recognizedText = word; } } } This codes generates a dll that I use in another application. Now, the wicked bug: - when I run the startRecognition method in the beginning of the execution of the other application, this codes works very well. But when I run it some time after the beginning, this codes works but the handleRecognition method is never called. I see that the words are recognized because they appear on the Microsoft Speech Recognition app, but the handler method is never called. Do you know what's the problem with this code? NOTE: this project has some code that is allways being executed. Might that be the problem? Because the other code is running it doesn't allow it to this to run?

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  • Why can't I access the instance.__class__ attribute in Python?

    - by froadie
    I'm new to Python, and I know I must be missing something pretty simple, but why doesn't this very, very simple code work? class myClass: pass testObject = myClass print testObject.__class__ I get the following error: AttributeError: class myClass has no attribute '__class__' Doesn't every object in Python have a __class__ attribute?

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  • How to make AVAudioPlayer play once it is stopped?

    - by Viral
    hi friends, I am using AVAudioplayer to play some sound. But once I make it stop using [player stop](where player is the object of AVAudioplayer] It is not starting again to play after some time when I call method [player play], So can any one tell me how to do the same in my application?? The play will again call using NSTimer method, after some delay of time. Thanks in advance...

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  • Updating Textures on Runtime in OpenSceneGraph

    - by Abhishek Bansal
    I am working on a project in which i am required to capture frames from external device video and render them on openSceneGraph Node. I am also using GLSL shaders. But i dont know how to update textures on runtime. For other uniforms we need to make callbacks but do we also need to make callbacks for samplers in glsl and openSceneGraph ? My code looks like this. All i am getting right now is a black window. osg::ref_ptr<osg::Geometry> pictureQuad = osg::createTexturedQuadGeometry(osg::Vec3(0.0f,0.0f,0.0f), osg::Vec3(_deviceNameToImageFrameMap[deviceName].frame->s(),0.0f,0.0f), osg::Vec3(0.0f,0.0f,_deviceNameToImageFrameMap[deviceName].frame->t()), 0.0f, 1.0f,_deviceNameToImageFrameMap[deviceName].frame->s(), _deviceNameToImageFrameMap[deviceName].frame->t()); //creating texture and setting up parameters for video frame osg::ref_ptr<osg::TextureRectangle> myTex= new osg::TextureRectangle(_deviceNameToImageFrameMap[deviceName].frame.get()); myTex->setFilter(osg::Texture::MIN_FILTER,osg::Texture::LINEAR); myTex->setFilter(osg::Texture::MAG_FILTER,osg::Texture::LINEAR); myTex->setWrap(osg::Texture::WRAP_S, osg::Texture::CLAMP_TO_EDGE); myTex->setWrap(osg::Texture::WRAP_T, osg::Texture::CLAMP_TO_EDGE); _videoSourceNameToNodeMap[sourceName].geode = new osg::Geode(); _videoSourceNameToNodeMap[sourceName].geode->setDataVariance(osg::Object::DYNAMIC); _videoSourceNameToNodeMap[sourceName].geode->addDrawable(pictureQuad.get()); //apply texture to node _videoSourceNameToNodeMap[sourceName].geode->getOrCreateStateSet()->setTextureAttributeAndModes(0, myTex.get(), osg::StateAttribute::ON); _videoSourceNameToNodeMap[sourceName].geode->getOrCreateStateSet()->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF); _videoSourceNameToNodeMap[sourceName].geode->setDataVariance(osg::Object::DYNAMIC); //Set uniform sampler osg::Uniform* srcFrame = new osg::Uniform( osg::Uniform::SAMPLER_2D, "srcFrame" ); srcFrame->set(0); //Set Uniform Alpha osg::Uniform* alpha = new osg::Uniform( osg::Uniform::FLOAT, "alpha" ); alpha->set(.5f); alpha->setUpdateCallback(new ExampleCallback()); //Enable blending _videoSourceNameToNodeMap[sourceName].geode->getOrCreateStateSet()->setMode( GL_BLEND, osg::StateAttribute::ON); //Adding blend function to node osg::BlendFunc *bf = new osg::BlendFunc(); bf->setFunction(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); _videoSourceNameToNodeMap[sourceName].geode->getOrCreateStateSet()->setAttributeAndModes(bf); //apply shader to quad _videoSourceNameToNodeMap[sourceName].geode->getOrCreateStateSet()->setAttributeAndModes(program, osg::StateAttribute::ON); //add Uniform to shader _videoSourceNameToNodeMap[sourceName].geode->getOrCreateStateSet()->addUniform( srcFrame ); _videoSourceNameToNodeMap[sourceName].geode->getOrCreateStateSet()->addUniform( alpha );

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  • How do I set a property in python using its string name

    - by dave
    Hey, here's a dumb question: how can I set an object property given its name in a string. I have a dictionary being passed to me and I wish to transfer its values into namesake properties using code like this: for entry in src_dict: if entry.startswith('can_'): tgt_obj[entry] = src_dict_profile[entry] I'm still a bit of a noob with Python so would appreciate some help. - dave.

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  • post row where radio button is checked

    - by ognjenb
    View: <form id="numbers-form" method="post" action="/Numbers/Numbers"> <table id="numbers"> <tr> <th> prvi_br </th> <th> drugi_br </th> <th> treci_br </th> </tr> <% int rb = 1; %> <% foreach (var item in Model) { %> <tr> <td> <%= Html.Encode(item.prvi_br) %> <input type="radio" name="<%= Html.Encode(rb) %>" value="<%= Html.Encode(rb) %>" id='<%= Html.Encode(item.prvi_br) %>'/> </td> <td> <%= Html.Encode(item.drugi_br) %> <input type="radio" name="<%= Html.Encode(rb)%>" value="<%= Html.Encode(rb) %>" id='<%= Html.Encode(item.drugi_br) %>'/> </td> <td> <%= Html.Encode(item.treci_br) %> <input type="radio" name="<%= Html.Encode(rb)%>" value="<%= Html.Encode(rb) %>" id='<%= Html.Encode(item.treci_br) %>'/> </td> </tr> <% rb++; %> <% } %> </table> <p> <input type="submit" value="Save" /> </p> </form> Controller action: [HttpPost] public ActionResult Numbers(int[] rb) { brojevi br = new brojevi(); for (int i = 1; i <= rb.Length; i++) //in this line I have error:Object reference not set to an instance of an object. { br.prvi_br = i; br.drugi_br = i+1; br.treci_br = i+3; } numbers.AddTobrojevi(br); numbers.SaveChanges(); return View(); } I try to post data row in wich radio button is checked but failed, what is wrong??

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  • socket problem in java

    - by stefan89
    I have two classes X and Y, like this: class X implements Serializable { int val1; Y val2; } class Y implements Serializable { int val; } I want to transmit an object of type X from a client to server but i can't because the class X has a field of type Y. I replace the field of type Y with a field of type X in class X and it works.

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  • Why can't I call this function (javascript/jquery)

    - by Ankur
    This is driving me nuts .... I have written a function function seraliseQuery(){ for(var i=1; i<=variables;i++){ alert(queryPreds[i]+" - "+queryObjs[i]); } } I just want to be able to call it from my other function $(".object").click( function() { // code removed seraliseQuery(); }); The error I get is "the function serialiseQuery() is undefined". Everything is within $(document).ready( function() { // code goes here }

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  • Preventing comboBox keyboard selection

    - by Cornel
    As you now the user can select an item from the comboBox by keyboard directly. By mouse I block the user to select some items depending on the behind object state. What's the best solution to stop this when the user uses the keyboard?

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  • What does Protected Internal means in .Net

    - by vaibhav
    Protected Means, we can access this member only in a deriving class, and internal means we can access this member in any type in the same assembly using a object. So can I consider a Protected Internal member as a public member in the same assembly. and as a protected member in the different assembly.

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  • Passing a model into RedirectToAction()

    - by larryq
    I'm curious how this works. In MVC you can call View() and pass a model as a parameter, but RedirectToAction (one of its incarnations at least) takes a 'routeValues' object, which appears to be the closest match. If your model is passed in this parameter will that model type be available in the subsequent action method? Or are there caveats involved that might prevent accurate translation in some circumstances?

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  • There is a JavaScript error in my rails application!

    - by Small Wolf
    As the title said, I got a problem! i encountered the "RJS Error:[object error]",the code in my application is page << "#{hidden_print("#{url_for(:controller => 'tables', :action => 'dispatch', :id => id, :pop => true, :print =>true)}")} " the method hidden_print is def hidden_print(url) "window.parent.headFrame.document.all.iframe_helper.src = '#{url}';" end

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  • How many objects can LINQ used to create per second ?

    - by MemoryLeak
    I used Linq to insert objects into database.But if i used threads to simultanously create 20 object within 1 second, then system will fail to add 20 objects into database. And I found it is not because of the sql server 's limit. so the only possible is Linq, any one have idea ? How can I create 20 records or more in 1 second within 1 second ?

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  • Why One-to-one relationship dosen't work?

    - by eugenn
    I'm trying to create a very simple relationship between two objects. Can anybody explain me why I can't find the Company object via findBy method? class Company { String name String desc City city static constraints = { city(unique: true) } } class City { String name static constraints = { } } class BootStrap { def init = { servletContext -> new City(name: 'Tokyo').save() new City(name: 'New York').save() new Company(name: 'company', city: City.findByName('New York')).save() def c = Company.findByName('company') // Why c=null????! } def destroy = { } }

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  • Detecting Handlers of a jQuery "Live" Event

    - by Anderson De Andrade
    Using: $('#foo').data('events').click We are able to access an iterative object of click handlers added to the element '#foo' but only when they were added with .bind() Is there a way to get the handlers for an event added with .live()? Is there any other way to know if an element has a click handler assigned?

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  • Is there a better way to declare an empty, typed matrix in MATLAB?

    - by Arthur Ward
    Is there a way to "declare" a variable with a particular user-defined type in MATLAB? zeros() only works for built-in numeric types. The only solution I've come up with involves using repmat() to duplicate a dummy object zero times: arr = repmat(myClass(), [1 0]) Without declaring variables this way, any code which does "arr(end+1) = myClass()" has to include a special case for the default empty matrix which is of type double. Have I missed something a little more sensible?

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  • Propel automatic form

    - by martin.malek
    Hi, I'm just starting with Propel and for more rapid development I'm curious if there is anything like automatic forms. Something like default administration in Django. I want to be able to output a form or to get all information I'll need. Even in the objects I didn't find all information which should be necessary to have everything for the form (name, type, length, related object, etc).

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  • Start to Finish Advanced Project Tutorials

    - by Ronnie Overby
    Can anyone recommend some start to finish project tutorials that really emphasize good design principles and best practices. I am looking for things that demonstrate and emphasize any or all of these: Domain Driven Design Unit Testing Inversion of Control Separation of Concerns Use of interfaces Object Relational Mapping Preferably ASP.NET MVC I am currently watching the Autumn of Agile series, which demonstrates many of these principles. I would like to find more of these tutorials/demos.

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  • How to append() an element and set its style with css() at the same time with jQuery

    - by Acorn
    I tried: $('#canvas').append('<div class="tile"></div>').css({left: leftPos, top: topPos});, but that sets the style of #canvas rather than the appended element. I then tried: $('#canvas').append(('<div class="tile"></div>').css({left: leftPos, top: topPos}));, but that gives the error "Object <div class="tile"></div> has no method 'css'". How can I add the element and set its style at the same time?

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