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  • Calling UIGetScreenImage() on manually-spawned thread prints "_NSAutoreleaseNoPool():" message to lo

    - by jtrim
    This is the body of the selector that is specified in NSThread +detachNewThreadSelector:(SEL)aSelector toTarget:(id)aTarget withObject:(id)anArgument NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; while (doIt) { if (doItForSure) { NSLog(@"checking"); doItForSure = NO; (void)gettimeofday(&start, NULL); /* do some stuff */ // the next line prints "_NSAutoreleaseNoPool():" message to the log CGImageRef screenImage = UIGetScreenImage(); /* do some other stuff */ (void)gettimeofday(&end, NULL); elapsed = ((double)(end.tv_sec) + (double)(end.tv_usec) / 1000000) - ((double)(start.tv_sec) + (double)(start.tv_usec) / 1000000); NSLog(@"Time elapsed: %e", elapsed); [pool drain]; } } [pool release]; Even with the autorelease pool present, I get this printed to the log when I call UIGetScreenImage(): 2010-05-03 11:39:04.588 ProjectName[763:5903] *** _NSAutoreleaseNoPool(): Object 0x15a2e0 of class NSCFNumber autoreleased with no pool in place - just leaking Has anyone else seen this with UIGetScreenImage() on a separate thread?

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  • QGrid display default "loading" message when updating a table / on custom update

    - by JVXR
    I have a case where I need to update a jqgrid based on some search criteria which the user selects. I can get the data to update , but I would want the loading message to show while the new data is being fetched. Can someone please let me know how to get that working ? Current code follows var ob_gridContents = $.ajax( { url : '/DisplayObAnalysisResults.action?getCustomAnalysisResults', data : "portfolioCategory="+ $('#portfolioCategory').val() +"&subPortfolioCategory="+ $('#subPortfolioCategory').val() + "&subportfolio=" + $('#subportfolio').val(), async : false }).responseText; var ob_Grid = jQuery('#OBGrid')[0]; var ob_GridJsonContents = eval('(' + ob_gridContents + ')'); $('#ob_Grid').trigger("reloadGrid"); ob_Grid.addJSONData(ob_GridJsonContents); ob_Grid = null; ob_GridJsonContents = null; }

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  • jQuery event handler queue

    - by resopollution
    Overview of the problem In jQuery, the order in which you bind a handler is the order in which they will be executed if you are binding to the same element. For example: $('#div1').bind('click',function(){ // code runs first }); $('#div1').bind('click',function(){ // code runs second }); But what if I want the 2nd bound code to run first? . My current solution Currently, my solution is to modify the event queue: $.data(domElement, 'events')['click'].unshift({ type : 'click', guid : null, namespace : "", data : undefined, handler: function() { // code } }); . Question Is there anything potentially wrong with my solution? Can I safely use null as a value for the guid? Thanks in advance. .

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  • C# assign char and char array to string?

    - by Bopha
    char character = 'c'; string str = null; str = character.ToString();//this is ok char[] arrayChar = { 'a', 'b', 'c', 'd' }; string str2 = null; str2 = string.Copy(arrayChar.ToString());//this is not ok str2 = arrayChar.ToString();//this is not ok. I'm trying to converting char array to string, but the last two attempts don't work. Other source I found and they have to create new string type, but I don't know why. Can someone give me little explaination, thanks.

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  • only 1 record is being inserted

    - by bobobobo
    I'm running an insert statement using OLE DB and an ICommandWithParameters. In the ICommandText, I made sure to set: params.cParamSets = n ; Then cmdTxt-Execute( NULL, IID_NULL, ¶ms, &rowsAffected, NULL ) ; Where n 1, but in my database, all I see is 1 insert happening. The docs say cParamSets is greater than one) can be specified only if DBPROP_MULTIPLEPARAMSETS is VARIANT_TRUE and the command does not return any rowsets. But I set DBPROP_MULTIPLEPARAMSETS in my DBPROPs, and its and INSERT statement so it should not return any rowsets.

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  • Unix Piping using Fork and Dup

    - by Jacob
    Lets say within my program I want to execute two child processes, one to to execute a "ls -al" command and then pipe that into "wc" command and display the output on the terminal. How can I do this using pipe file descriptors so far the code I have written: An example would be greatly helpful int main(int argc, char *argv[]) { int pipefd[2] pipe(pipefd2); if ((fork()) == 0) { dup2(pipefd2[1],STDOUT_FILENO); close(pipefd2[0]); close(pipefd2[1]); execl("ls", "ls","-al", NULL); exit(EXIT_FAILURE); } if ((fork()) == 0){ dup2(pipefd2[0],STDIN_FILENO); close(pipefd2[0]); close(pipefd2[1]); execl("/usr/bin/wc","wc",NULL); exit(EXIT_FAILURE); } close(pipefd[0]); close(pipefd[1]); close(pipefd2[0]); close(pipefd2[1]); }

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  • Django: query with ManyToManyField count?

    - by AP257
    In Django, how do I construct a COUNT query for a ManyToManyField? My models are as follows, and I want to get all the people whose name starts with A and who are the lord or overlord of at least one Place, and order the results by name. class Manor(models.Model): lord = models.ManyToManyField(Person, null=True, related_name="lord") overlord = models.ManyToManyField(Person, null=True, related_name="overlord") class Person(models.Model): name = models.CharField(max_length=100) So my query should look something like this... but how do I construct the third line? people = Person.objects.filter( Q(name__istartswith='a'), Q(lord.count > 0) | Q(overlord.count > 0) # pseudocode ).order_by('name'))

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  • Grails pattern to reuse template on error

    - by bsreekanth
    Hello, I have a gsp template, where the data for create view is passed through the controller. def create = { def bookInstance = new Book() bookInstance .properties = params def map = getDefaultValues() render(template: "create", model: [bookInstance : bookInstance , title: map.title, somelist: somelist ....]) the gsp template <g:select optionKey="id" from="${somelist}" name="somelist.id" value="${bookInstance ?.somelist?.id}" noSelection="['null': '']"></g:select> now, in the save method, if there is an error, it returns currently populated and validated instance (default scaffold implementation) render(template: "create", model: [bookInstance : bookInstance ]) But the fields in the gsp (error page rendered from save action) is empty. I could see the reason as it looks the value in "${somelist}" , but it is not used in save method. Do i just need to check for null in the gsp and use whichever map is available, or any better method (passing all the map in the save method is not an option) .. thanks in advance..

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  • Issue with parsed text with HTMLCleaner - spaces at the begining of text

    - by ansol90
    Im able to get text using HTMLCleaner from website. The problem is that when I set the text to a TextView it shows the beginning of the text with a big space on it. Here is the screenshot of what im talking about. I have tried android:gravity but nothing happened. Please help. Here is my Code: private class SiteParser extends AsyncTask<String, Void, String> { protected String doInBackground(String... arg) { String output = null; try { HtmlHelper hh = new HtmlHelper(new URL(arg[0])); List<TagNode> news = hh.getnewsByClass("TextoPrint"); for (Iterator<TagNode> iterator = newss.iterator(); iterator .hasNext();) { TagNode divElement = (TagNode) iterator.next(); output = divElement.getText().toString(); } } catch (Exception e) { e.printStackTrace(); } return output; } protected void onPostExecute(String output) { Bundle bundle=new Bundle(); bundle.putString("body",output); Intent mainIntent = new Intent(act, MyView.class); mainIntent.putExtras(bundle); startActivity(mainIntent); act.finish(); } } public class HtmlHelper { TagNode rootNode; public HtmlHelper(URL htmlPage) throws IOException, XPatherException { HtmlCleaner cleaner = new HtmlCleaner(); rootNode = cleaner.clean(htmlPage); } List<TagNode> getnewsByClass(String Classname){ List<TagNode> newsList = new ArrayList<TagNode>(); TagNode divElements[] = rootNode.getElementsByName("div", true); for (int i = 0; divElements != null && i < divElements.length; i++) { String classType = divElements[i].getAttributeByName("id"); if (classType != null && classType.equals(Classname)) { newsList.add(divElements[i]); } } return newsList; } }

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  • Dailymotion Javascript API problem

    - by Sandip
    include js file "swfobject.js" js code is as follows: var params = { allowScriptAccess: "always" }; var atts = { id: "mydmplayer" }; swfobject.embedSWF("http://www.dailymotion.com/swf/VIDEO_ID&enablejsapi=1& playerapiid=dmplayer", "dmapiplayer", "425", "356", "8", null, null, params, atts); I am newbie to javascript and SWF. I am using this code to embed video into my html. Now I want to create custom links like "play","fast forward" etc. Could you please guide me, how to acheive this? Please reply ASAP. It's urgent. I would be very thankful to you.

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  • Java EE javax.xml.bind.MarshalException

    - by sandeep
    Hi, I am getting javax.xml.bind.MarshalException error. I am sending List from my webservice to the backingbean and I have this error. WARNING: invocation error on ejb endpoint Login_webservice at /Login_webserviceService/Login_webservice : javax.xml.bind.MarshalException - with linked exception: [javax.xml.bind.JAXBException: class JPA.Cantable nor any of its super class is known to this context.] javax.xml.ws.WebServiceException: javax.xml.bind.MarshalException - with linked exception: [javax.xml.bind.JAXBException: class JPA.Cantable nor any of its super class is known to this context.] at com.sun.xml.ws.message.jaxb.JAXBMessage.writePayloadTo(JAXBMessage.java:325) at com.sun.xml.ws.message.AbstractMessageImpl.writeTo(AbstractMessageImpl.java:142) at com.sun.xml.ws.encoding.StreamSOAPCodec.encode(StreamSOAPCodec.java:109) at com.sun.xml.ws.encoding.SOAPBindingCodec.encode(SOAPBindingCodec.java:278) at com.sun.xml.ws.transport.http.HttpAdapter.encodePacket(HttpAdapter.java:380) at com.sun.xml.ws.transport.http.HttpAdapter.access$100(HttpAdapter.java:92) at com.sun.xml.ws.transport.http.HttpAdapter$HttpToolkit.handle(HttpAdapter.java:525) at com.sun.xml.ws.transport.http.HttpAdapter.handle(HttpAdapter.java:285) at com.sun.xml.ws.transport.http.servlet.ServletAdapter.handle(ServletAdapter.java:143) at org.glassfish.webservices.Ejb3MessageDispatcher.handlePost(Ejb3MessageDispatcher.java:116) at org.glassfish.webservices.Ejb3MessageDispatcher.invoke(Ejb3MessageDispatcher.java:87) at org.glassfish.webservices.EjbWebServiceServlet.dispatchToEjbEndpoint(EjbWebServiceServlet.java:196) at org.glassfish.webservices.EjbWebServiceServlet.service(EjbWebServiceServlet.java:127) at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) Here is my code: Backing bean @WebServiceRef(wsdlLocation = "http://localhost:26565/Login_webserviceService/Login_webservice?WSDL") public String login() { System.out.println("Login Phase entered"); int result = 0; List list; List finalList = null; try { Weblogin.LoginWebserviceService service = new Weblogin.LoginWebserviceService(); Weblogin.LoginWebservice port = service.getLoginWebservicePort(); result = port.login(voterID, password); Weblogin.LoginWebservice port1 = service.getLoginWebservicePort(); list = port1.candDetails(1); finalList = list; this.setList(finalList); } catch (Exception e) { e.printStackTrace(); } if (result == 1) return "polling"; else return "login"; } Webservice public List candDetails(int pollEvent) { List resultList = null; List finalList = null; try { if (pollEvent == 1) { resultList = em.createNamedQuery("Cantable.findAll").getResultList(); finalList = resultList; } } catch (Exception e) { e.printStackTrace(); } return resultList; }

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  • Rails with JQuery DIV manipulation

    - by MrThomas
    Say I have a loop of objects (style.cover.pic) in a DIV .style_image <% @styles.each do |style| % <div class="style_image"> <%=link_to (image_tag style.cover.pic.url(:small)), style %></div> With the use of JQuery On a click event I want to load (this.href) in to the div .style_image which was click not all of the .style_image DIV's. this is what I have done so fare: $(function() { $(".style_image a").live('click', function(event) { $(".style_image a").load(this.href + " #show_style"); $.get(this.href, null, null, "script"); return false; }); }); Can this be done? and yes how??? Regards Dan

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  • Unable to make 2 parallel TCP requests to the same TCP Client

    - by soldieraman
    Error: Unable to read data from the transport connection: A blocking operation was interrupted by a call to WSACancelBlockingCall Situation There is a TCP Server My web application connects to this TCP Server Using the below code: TcpClientInfo = new TcpClient(); _result = TcpClientInfo.BeginConnect(<serverAddress>,<portNumber>, null, null); bool success = _result.AsyncWaitHandle.WaitOne(20000, true); if (!success) { TcpClientInfo.Close(); throw new Exception("Connection Timeout: Failed to establish connection."); } NetworkStreamInfo = TcpClientInfo.GetStream(); NetworkStreamInfo.ReadTimeout = 20000; 2 Users use the same application from two different location to access information from this server at the SAME TIME Server takes around 2sec to reply Both Connect But One of the user gets above error "Unable to read data from the transport connection: A blocking operation was interrupted by a call to WSACancelBlockingCall" when trying to read data from stream How can I resolve this issue? Use a better way of connecting to the server Can't because it's a server issue if a server issue, how should the server handle request to avoid this problem

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  • DataContractJsonSerializer set value extension point

    - by svinto
    using System.IO; using System.Runtime.Serialization; using System.Runtime.Serialization.Json; using System.Text; namespace ConsoleApplication1 { internal class Program { private static void Main(string[] args) { var pony = new Pony(); var serializer = new DataContractJsonSerializer(pony.GetType()); var example = @"{""Foo"":null}"; var stream = new MemoryStream(Encoding.UTF8.GetBytes(example.ToCharArray())); stream.Position = 0; pony = (Pony) serializer.ReadObject(stream); // The previous line throws an exception. } } [DataContract] public class Pony { [DataMember] private int Foo { get; set; } } } Sometimes the serialization throws a casting error on Int32s being set to null. Is there any way to hook into the Json-serializer?

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  • Segfault (possibly due to casting)

    - by BSchlinker
    I don't normally go to stackoverflow for sigsegv errors, but I have done all I can with my debugger at the moment. The segmentation fault error is thrown following the completion of the function. Any ideas what I'm overlooking? I suspect that it is due to the casting of the sockaddr to the sockaddr_in, but I am unable to find any mistakes there. (Removing that line gets rid of the seg fault -- but I know that may not be the root cause here). // basic setup int sockfd; char str[INET_ADDRSTRLEN]; sockaddr* sa; socklen_t* sl; struct addrinfo hints, *servinfo, *p; int rv; memset(&hints, 0, sizeof hints); hints.ai_family = AF_UNSPEC; hints.ai_socktype = SOCK_DGRAM; // return string string foundIP; // setup the struct for a connection with selected IP if ((rv = getaddrinfo("4.2.2.1", NULL, &hints, &servinfo)) != 0) { fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(rv)); return "1"; } // loop through all the results and make a socket for(p = servinfo; p != NULL; p = p->ai_next) { if ((sockfd = socket(p->ai_family, p->ai_socktype, p->ai_protocol)) == -1) { perror("talker: socket"); continue; } break; } if (p == NULL) { fprintf(stderr, "talker: failed to bind socket\n"); return "2"; } // connect the UDP socket to something connect(sockfd, p->ai_addr, p->ai_addrlen); // we need to connect to get the systems local IP // get information on the local IP from the socket we created getsockname(sockfd, sa, sl); // convert the sockaddr to a sockaddr_in via casting struct sockaddr_in *sa_ipv4 = (struct sockaddr_in *)sa; // get the IP from the sockaddr_in and print it inet_ntop(AF_INET, &(sa_ipv4->sin_addr), str, INET_ADDRSTRLEN); printf("%s\n", str); // return the IP return foundIP; }

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  • How to validate Data Annotations with a MetaData class

    - by Micah
    I'm trying to validate a class using Data Annotations but with a metadata class. [MetadataType(typeof(TestMetaData))] public class Test { public string Prop { get; set; } internal class TestMetaData { [Required] public string Prop { get; set; } } } [Test] [ExpectedException(typeof(ValidationException))] public void TestIt() { var invalidObject = new Test(); var context = new ValidationContext(invalidObject, null, null); context.MemberName = "Prop"; Validator.ValidateProperty(invalidObject.Prop, context); } The test fails. If I ditch the metadata class and just decorated the property on the actual class it works fine. WTH am I doing wrong? This is putting me on the verge of insanity. Please help.

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  • How to access the subject of a compose mail item in Outlook

    - by vwfreak034
    In Outlook, I can set the subject for a new message (when composing a new mail message), but I want to prepend text. So I need to get the subject first, and then set it. Outlook.Application application = Globals.ThisAddIn.Application; Outlook.Inspector inspector = application.ActiveInspector(); Outlook.MailItem myMailItem = (Outlook.MailItem)inspector.CurrentItem; if (myMailItem != null && !string.IsNullOrEmpty(myMailItem.Subject)) { myMailItem.Subject = "Following up on your order"; } This code works on replies, but not for new messages, because in that case, myMailItem is null.

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  • WPF Accessing Items inside Listbox which has a UserControl as ItemTemplate

    - by Turker
    I have Window that has a ListBox ListBox(MyListBox) has a DataTable for its DataContext ListBox's ItemSource is : {Binding} Listbox has a UserControl(MyUserControl) as DataTemplate UserControl has RadioButtons and TextBoxes (At first They're filled with values from DataTable and then user can change them) Window has one Submit Button What I want to do is, when user clicks the submit button For each ListBox Item, get the values form UserControl's TextBoxes and RadioButtons. I was using that method for this job : foreach(var element in MyListBox.Items) { var border = MyListBox.ItemContainerGenerator.ContainerFromItem(element)as FrameworkElement; MyUserControl currentControl = VisualTreeHelper.GetChild(VisualTreeHelper.GetChild(VisualTreeHelper.GetChild(myBorder,0) as Border,0)as ContentPresenter,0)as MyUserControl; //And use currentControl } I realised nothing when using 3-5 items in Listbox. But when I used much more items, I saw that "var border" gets "null" after some elements looped in foreach function. I found the reason here : http://stackoverflow.com/questions/1675926/listview-itemcontainergenerator-containerfromitemitem-return-null-after-20-item So what can I do now? I want to access all items and get their values sitting on user controls. Thanks

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  • Drawing a bitmap in a canvas after calling setBitmap doesn't work

    - by kodbar_k
    I'm drawing a bitmap in a canvas and i want to have the result in a new bitmap, but i still have a black screen as result. This is my code, part of the onDraw(Canvas canvas) method : if (bitmapTemplate == null) { canvasBis = new Canvas(); bitmapTemplate = Bitmap.createBitmap(canvas.getWidth()+30,canvas.getHeight(),Bitmap.Config.ARGB_8888); drawZones(canvasBis,bitmapTemplate); } bitmapRes = Bitmap.createBitmap(canvas.getWidth()+30,canvas.getHeight(),Bitmap.Config.ARGB_8888); canvas.setBitmap(bitmapRes); canvas.drawBitmap(bitmapTemplate, matrix, null); My goal is to have a new bitmap (bitmapRes) by applying a matrix on an existing bitmap (bitmapTemplate). With this code i alway have a black screen, but when i remove the line canvas.setBitmap(bitmapRes) i have a result but not in a new bitmap. any ideas please ? Maybe transparency ? Thanks in advance. drawZones draws some zones in bitmapTemplate.

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  • WaitForSingleObject( )

    - by Rakesh Agarwal
    I have got myself stuck into a really amazing issue here.The code is like as below. class A { public: A(){ m_event = CreateEvent(NULL, false, false, NULL); // create an event with initial value as non-signalled m_thread = _beginthread(StaticThreadEntry, 0, this); // create a thread } static void StaticThreadEntry(A * obj) { obj->ThreadEntry(); } void ThreadEntry(); }; void A::ThreadEntry() { WaitforSingleObject(m_event,INFINITE); } int main() { A a; SetEvent(m_event); // sets the event to signalled state which causes the running thread to terminate WaitForSingleObject(m_thread, INFINITE); // waits for the thread to terminate return 0; } Problem : When the above code is run,sometimes( 1 out of 5 ) it hangs and the control gets stuck in the call to WaitforSingleObject()( inside the main function ).The code always calls SetEvent() function to ensure that the thread would terminate before calling Wait() function. I do not see any reason why it should ever hang?

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  • How to add ACTIVE DIRECTORY user to Sharepoint group

    - by standley-nguyen
    Hi all. I got an exception when executing this snippet code SPSecurity.RunWithElevatedPrivileges(delegate() { using (SPSite site = new SPSite(siteUrl.Trim())) { using (SPWeb web = site.OpenWeb()) { try { web.AllowUnsafeUpdates = true; SPUser spUser = web.AllUsers[userName]; if (spUser != null) { SPGroup spGroup = web.Groups[groupName]; if (spGroup != null) spGroup.AddUser(spUser); } } catch (Exception ex) { this.TraceData(LogLevel.Error, "Error at function Named [AddUserToSPGroupWidget.AddUserToGroup] . With Error Message: " + ex.ToString()); } finally { web.AllowUnsafeUpdates = false; } } } }); PLease guide me. Thanks in advance.

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  • NAudio: How can I get an event that tells me that the MP3 file reached the end?

    - by Rookian
    I tried to use this: private void CreateDevice() { _playbackDevice = new WaveOut(); _playbackDevice.PlaybackStopped += PlaybackDevicePlaybackStopped; } void PlaybackDevicePlaybackStopped(object sender, EventArgs e) { if (OnPlaybackStopped != null) { OnPlaybackStopped(this, e); } } But it never invoked. Then I tried to use the PlaybackState by polling the property with a timer: public PlaybackState PlaybackState { get { if (_playbackDevice == null) return default(PlaybackState); return _playbackDevice.PlaybackState; } } But when the song ends it does not change to "stopped". But when I call Stopped it changes correctly. Can someone help me?

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  • Error: java.lang.ClassCastException

    - by theJava
    Updating the entire post. public Login authenticate(Login login) { String query = "SELECT email, id FROM Login WHERE email=? AND password=?"; Object[] parameters = { login.getEmail(), login.getPassword() }; List resultsList = getHibernateTemplate().find(query,parameters); if ( resultsList.size() == 1 ) { results = (Login)resultsList.get(0); System.out.println(results); } else { System.out.println("Error dude.... "); // error no entity or mutiple entities } return results; } I now return Login Objects. private void checkLogin() { form.commit(); Login newUser = new Login(); newUser = ilogin.authenticate(loginbean); System.out.println("Its Null Value" + newUser); if (newUser == null) { getWindow().showNotification("Login failed", LOGIN_ERROR_MSG, Notification.TYPE_WARNING_MESSAGE); } else { System.out.println(newUser); getApplication().setUser(newUser); } } When there is no matching email, i get there is no such user and also this statement does get printed out. System.out.println("Its Null Value" + newUser); But when there is a email and password matching. I get weird error. Caused by: java.lang.ClassCastException: [Ljava.lang.Object; cannot be cast to com.intermedix.domain.Login at com.intermedix.services.LoginService.authenticate(LoginService.java:30) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:301) at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149) at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:106) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204) at $Proxy32.authenticate(Unknown Source) at com.intermedix.ui.LoginDailog.checkLogin(LoginDailog.java:106) at com.intermedix.ui.LoginDailog.access$0(LoginDailog.java:102) at com.intermedix.ui.LoginDailog$1.buttonClick(LoginDailog.java:52) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:487) ... 26 more

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  • How can I make these images download on a seperate thread?

    - by Andy Barlow
    Hello!! I have the following code running on my Android device. It works great and displays my list items wonderfully. It's also clever in the fact it only downloads the data when it's needed by the ArrayAdapter. However, whilst the download of the thumbnail is occurring, the entire list stalls and you cannot scroll until it's finished downloading. Is there any way of threading this so it'll still scroll happily, maybe show a place holder for the downloading image, finish the download, and then show? Any help with this would be really apreciated. Thank-you kindly. Andy Barlow private class CatalogAdapter extends ArrayAdapter { private ArrayList<SingleQueueResult> items; //Must research what this actually does! public CatalogAdapter(Context context, int textViewResourceId, ArrayList<SingleQueueResult> items) { super(context, textViewResourceId, items); this.items = items; } /** This overrides the getview of the ArrayAdapter. It should send back our new custom rows for the list */ @Override public View getView(int position, View convertView, ViewGroup parent) { View v = convertView; if (v == null) { LayoutInflater vi = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE); v = vi.inflate(R.layout.mylists_rows, null); } final SingleQueueResult result = items.get(position); // Sets the text inside the rows as they are scrolled by! if (result != null) { TextView title = (TextView)v.findViewById(R.id.mylist_title); TextView format = (TextView)v.findViewById(R.id.mylist_format); title.setText(result.getTitle()); format.setText(result.getThumbnail()); // Download Images ImageView myImageView = (ImageView)v.findViewById(R.id.mylist_thumbnail); downloadImage(result.getThumbnail(), myImageView); } return v; } } // This should run in a seperate thread public void downloadImage(String imageUrl, ImageView myImageView) { try { url = new URL(imageUrl); URLConnection conn = url.openConnection(); conn.connect(); InputStream is = conn.getInputStream(); BufferedInputStream bis = new BufferedInputStream(is); Bitmap bm = BitmapFactory.decodeStream(bis); bis.close(); is.close(); myImageView.setImageBitmap(bm); } catch (IOException e) { /* Reset to Default image on any error. */ //this.myImageView.setImageDrawable(getResources().getDrawable(R.drawable.default)); } }

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  • Error : while creating a file.

    - by Harikrishna
    I am storing records of datatable to csv file with the help of the following code : // we'll use these to check for rows with nulls var columns = yourTable.Columns .Cast<DataColumn>(); using (var writer = new StreamWriter(yourPath)) { for (int i = 0; i < yourTable.Rows.Count; i++) { DataRow row = yourTable.Rows[i]; // check for any null cells if (columns.Any(column => row.IsNull(column))) continue; string[] textCells = row.ItemArray .Select(cell => cell.ToString()) // may need to pick a text qualifier here .ToArray(); // check for non-null but EMPTY cells if (textCells.Any(text => string.IsNullOrEmpty(text))) continue; writer.WriteLine(string.Join(",", textCells)); } } But I get the error like System.UnauthorizedAccessException was unhandled Message="Access to the path 'D:\\Harikrishna\\Monthly Reports' is denied." What can be the problem and solution ?

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