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• Navigation Within TabController

  - by David.Chu.ca

  I am trying to use UITabController as may controller in my main window and add navigation controllers to some tab bar items. For example, the first tab has a navigation controller with table view: ![alt text][1] The SettingsViewController is associated with its own NIB file, where a table view is defined. Within that xib file, I have a table view and set it to the outlet of SettingsViewController class property myTableView. The problem is that in the main xib file, for the SettingsViewController navigation, there is one outlet myTableView. I am not sure if I have to set this to somewhere? The exception I get is "[UIViewController _loadViewFromNibNamed:bundle:] loaded the "SettingsViewController" nib but the view outlet was not set." [1]:

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• Saving part of audio file (java)

  - by m159701m

  Hi evryone, While playing an audio file (.wav) I want , if I resort to ctrl+c , to stop the playback and save part of the audio file in a file called "file2.wav". Here's the thread I'd like to add to my code. Unfortunately it doesn't work at all. Thanks in advance class myThread extends Thread{ public void run(){ try { PipedOutputStream poStream = new PipedOutputStream(); PipedInputStream piStream = new PipedInputStream(); poStream.connect(piStream); File cutaudioFile = new File ("file2.wav"); AudioInputStream ais = new AudioInputStream(piStream, AudioFileFormat.Type.WAVE , cutaudioFile); poStream.write(ais,AudioFileFormat.Type.WAVE,cutaudioFile); }catch (Exception e){ e.printStackTrace(); } } // end run } // end myThread

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• Clojure load files

  - by Nate

  I'm trying to set up a simple clojure project, and I'm not sure how to load files between the project. I'm sure that the answer is in the documentation, but I can't find a simple answer any where and I'm not sure where to look. Essentially, my directory looks like this: Clojure/ clojure/ clojure.jar other clojure files clojure-contrib/ clojure-contrib.jar other contrib files project/ main.clj utils.clj And I want main.clj to be something like this: (ns project.main (:require project.utils)) (greet) and utils.clj to be something like this: (ns project.utils) (defn greet [] (println "Hello, World!")) But that fails with: Exception in thread "main" java.io.FileNotFoundException: Could not locate project/utils__init.class or project/utils.clj on classpath: (main.clj:1) When I attempt to run it. How do you set up a simple clojure project?

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• Launching external console application from JAVA

  - by Andrew

  Hi in a java application i need to run an external console application. With the window's ones everything is OK: try { System.out.println("Running..."); Runtime.getRuntime().exec("notepad.exe"); System.out.println("End."); } catch(Exception e) { System.out.println(e.getMessage()); } launches notepad successfully. But if I put "D:\MyProg.exe" or ".bat" or even "cmd.exe" (which is it PATH as notepad is) it does not work. Without any exeptions. Just: Running... End. Can somebody help? Thanx.

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• reRendering is not happening in jsf using data table

  - by palakolanusrinu

  HI, Rerendering is not working in my code please help in this <rich:dataTable id="bookIncome" value="#{myBean.ftBoookIncomelst}" var="item" rowKeyVar="row" first="0" width="100%"> <rich:subTable id="subBookIncome"value="#{item.txIncome}" var="income" rowKeyVar="row"> <rich:column id="descrtiptionColumn" width="30%"> <h:outputText value="#{income.descriptionCell.value}" rendered="#{!item.editableRow}" style="#{income.descriptionCell.boldClass}"> </h:outputText> <rich:inplaceInput layout="block" value="#{income.descriptionCell.value}" required="true" rendered="#{item.editableRow}" requiredMessage="Description at row #{row+1} wasn't filled." changedHoverClass="hover" viewHoverClass="hover" viewClass="inplace" changedClass="inplace" selectOnEdit="true" editEvent="onclick"> </rich:inplaceInput> In the above code i have proper id for datatable and i'm calling my ajax call using But its not showing any response but its hitting the server and its calling proper method and updating the required list also..Please help in this why its not rendering its not showing any exception on console also...

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• Can I configure a strongly typed data set to use nullable values?

  - by Dan Tao

  If I have a strongly typed data table with a column for values of type Int32, and this column allows nulls, then I'll get an exception if I do this for a row where the value is null: int value = row.CustomValue; Instead I need to do this: if (!row.IsCustomValueNull()) { int value = row.CustomValue; // do something with this value } Ideally I would like to be able to do this: int? value = row.CustomValue; Of course I could always write my own method, something like GetCustomValueOrNull; but it'd be preferable if the property auto-generated for the column itself simply returned a nullable. Is this possible?

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• Only one instance of a scriptmanager can exist on a page

  - by dotnetdev

  Hi, I design an ASP.NET web usercontrol and with a maskeditor and scriptmanager, I always get an object reference not set to an instance of an object exception at runtime. Stacktrace is: [InvalidOperationException: Only one instance of a ScriptManager can be added to the page.] System.Web.UI.ScriptManager.OnInit(EventArgs e) +384613 System.Web.UI.Control.InitRecursive(Control namingContainer) +333 System.Web.UI.Control.InitRecursive(Control namingContainer) +210 System.Web.UI.Control.InitRecursive(Control namingContainer) +210 System.Web.UI.Control.InitRecursive(Control namingContainer) +210 System.Web.UI.Control.InitRecursive(Control namingContainer) +210 System.Web.UI.Control.InitRecursive(Control namingContainer) +210 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +378 What causes this? Thanks

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• Could not realize media player

  - by user556894

  I am using this code to run avi file using jmf but the error come like "Could not realize media player" and how to open all video format using jmf import javax.media.*; import javax.media.format.*; import java.io.*; import java.util.*; public class Test{ public static void main(String a[]) throws Exception{ CaptureDeviceInfo di = null; Player p = null; Vector deviceList = CaptureDeviceManager.getDeviceList(new AudioFormat("linear", 44100, 16, 2)); if (deviceList.size() > 0){ di = (CaptureDeviceInfo)deviceList.firstElement(); System.out.println((di.getLocator()).toExternalForm()); }else{ System.out.println("Exiting"); System.exit(-1); } try{ p = Manager.createPlayer(di.getLocator()); }catch (IOException e){ System.out.println(e); }catch (NoPlayerException e) { System.out.println(e); } System.out.println("Playing Started"); p.start(); } }

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• regex for matching strings that have illegal filename characters.

  - by cchampion

  I been trying to figure out how this blasted regex for two hours!!! It's midnight I gotta figure this out and go to bed!!! String str = new String("filename\\"); if(str.matches(".*[?/<>|*:\"{\\}].*")) { System.out.println("match"); }else { System.out.println("no match"); } ".*[?/<>|*:\"{\\}].*" is my regex expression. It catches everything correctly except the backslash!!! I need to know how to make it catch the backslash correctly please help! FYI, the illegal characters i'm trying to catch are ? \ / < | * : " I've got it working exception for the backslash

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• Problem at JUnit test with generics

  - by Tom Brito

  In my utility method: public static <T> T getField(Object obj, Class c, String fieldName) { try { Field field = c.getDeclaredField(fieldName); field.setAccessible(true); return (T) field.get(obj); } catch (Exception e) { e.printStackTrace(); fail(); return null; } } The line return (T) field.get(obj); gives the warning "Type safety: Unchecked cast from Object to T"; but I cannot perform instanceof check against type parameter T, so what am I suppose to do here?

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• Do breakpoints introduce delay?

  - by kamilo

  How is that setting a breakpoint in my code allows the following code to complete which would fail otherwise. Here is the problem. I'm writing an add-on for SAP B1 and encountered following problem. When I load a form I would like to enter some values into the form' matrix. But without a breakpoint (set on a method in which loading a form takes place) the part of code that is executed afterward will fail. That part of code is referencing a matrix that is not yet displayed which results in an exception. This is all clear. But why setting a breakpoint "solves" the problem. What is going on? I suspect that my breakpoint introduces some delay between loading and displaying my form and part of code that references element of that form but I could be wrong.

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• Couchbase (ex. membase) solution to dump all keys in a bucket

  - by j99

  I was googling around and found various python + tap solutions that should enable me to dump all keys from a bucket but none of them worked for me. I have a bucket at port 11230 and I need to get a dump of all keys in order to fill them into sphinx search engine. If I execute: # python /opt/couchbase/lib/python/tap_example.py 127.0.0.1:11230 I get the following output: info: New bin connection from None error: uncaptured python exception, closing channel <tap.TapConnection connected at 0x7f5d287184d0> (<type 'exceptions.AssertionError'>: [/usr/lib/python2.6/asyncore.py|read|78] [/usr/lib/python2.6/asyncore.py|handle_read_event|428] [/opt/couchbase/lib/python/mc_bin_server.py|handle_read|325]) this error is the same even if I try some other host or port. I also tried many other python scripts that I found on forums and groups but all of them produced the same error. My primary development environment includes PHP & Perl on Debian linux box but I will take any solution that would just dump all the keys into plain text file. Thank you for any help!

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• Trouble getting email attachment from Exchange

  - by JimR

  I am getting the error message “The remote server returned an error: (501) Not Implemented.” when I try to use the HttpWebRequest.GetResponse() using the GET Method to get an email attachment from exchange. I have tried to change the HttpVersion and don’t think it is a permissions issue since I can search the inbox. I know my credentials are correct as they are used to get HREF using the HttpWebRequest.Method = Search on the inbox (https://mail.mailserver.com/exchange/testemailaccount/Inbox/). HREF = https://mail.mailserver.com/exchange/testemailaccount/Inbox/testemail.EML/attachment.csv Sample Code: HttpWebRequest req = (System.Net.HttpWebRequest) HttpWebRequest.CreateHREF); req.Method = "GET"; req.Credentials = this.mCredentialCache; string data = string.Empty; using (WebResponse resp = req.GetResponse()) { Encoding enc = Encoding.Default; if (resp == null) { throw new Exception("Response contains no information."); } using (StreamReader sr = new StreamReader(resp.GetResponseStream(), Encoding.ASCII)) { data = sr.ReadToEnd(); } }

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• In MVC framworks (such as Ruby on Rails), does usually Model spell as singular and controller and vi

  - by Jian Lin

  I usually see Ruby on Rails books using script/generate model Story name:string link:string which is a singular Story, while when it is controller script/generate controller Stories index then the Story now is Stories, which is plural. Is this a standard on Ruby on Rails? Is it true in other MVC frameworks too, like CakePHP, Symfony, Django, or TurboGears? I see that in the book Rails Space, the controller is also called User, which is the same as the model name, and it is the only exception I see. Update: also, when scaffold is done on Ruby on Rails, then automatically, the model is singular and the controller and view are both plural.

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• Compiling a class using Java code using process

  - by Noona

  I have this piece of code that compiles a class called tspClassName, when I compile using this code: Process compileProc = null; try { compileProc = Runtime.getRuntime().exec("javac -classpath ." + File.separator + "src" + File.separator + File.separator + "generated." + tspClassName + ".java -d ." + File.separator + "bin"); // catch exception if (compileProc.exitValue() != 0) { System.out.println("Compile exit status: " + compileProc.exitValue()); System.err.println("Compile error:" + compileProc.getErrorStream()); it outputs this: "Compile exit status: 2 Compile error:java.io.FileInputStream@17182c1" The class tspClassName.java compiles without errors otherwise, so I am guessing it has to do with the path,and in my eclipse project, the tspClassName.java resides in package homework4.generated inside src, is there something wrong with the path that I use in the code? thanks

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• MVC 2 Beta DefaultControllerFactory with Areas

  - by stoto

  Why default factory WON'T return full name of the controllers (with namespaces)? I'm using Service Locator and autofac. using System.Web.Mvc; using Microsoft.Practices.ServiceLocation; namespace Application.Core.MVC { public override IController CreateController(System.Web.Routing.RequestContext requestContext, string **controllerName**) { return ServiceLocator.Current.GetInstance<IController>(controllerName); } } I had two home controllers (one under area Blog) http://localhost/Home http://localhost/Blog/Home controllerName return only "Home" without full qualified name for both in above code. This creates a problem when I try to regiser controllers' names for dependency injection. Here is how I register controllers right now according to this situation. Even this brings up the pages without exception. But When I access http://localhost/Home, both controllers invoked regardlessly. foreach (var tp in currentAssemblyControllersTypes) builder.Register(tp).FactoryScoped().Named(tp.Name.Replace("Controller", "")); Anyone can help?Thanks.

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• "Cannot load ViewState" after dynamic control changed

  - by Emil D

  In my ASP.NET page I have to dynamically choose and load a custom control, depending on the selected value in a dropdownlist.However I encountered the following problem: When the parameters of the dynamically loaded control are changed, and then the selection in the dropdownlist is changed( thus forcing me to load a different dynamic control the next time the page reloads ), I end up with a "Cannot load ViewState" exception.I assume that this happens because the ViewState is trying to restore the parameters of the old control and it doesn't find it. So , is there any way to stop the viewstate from attempting to restore the state of the non-existig control?

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• How to handle updating JDO class definitions on Google App Engine

  - by Spines

  I'm using the Google app engine and JDO. What is the best way to update a JDO class definition without having to wipe the data store contents first? I'm not sure if this is specific to JDO on GAE, but I noticed that when I simply change the name of one of my persistent fields from svotes to votes, an exception is thrown (java.lang.NoSuchFieldError: svotes). I expect once my site goes live I might want to make some changes to my JDO class definitions, such as adding a field or something. Any suggestions for how to update the data definitions without having to wipe the database?

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• Spring security and Struts 2

  - by Thanksforfish

  I have a struts2 action with an @Secured({"ROLE_ADMIN"}) to secure the execute method. In the execute method i assign a message to a member variable of the action, then return SUCCESS and end up on the jsp page. On the page I retrieve the actions member variable with <sroperty. private String greeting; public String execute() throws Exception { this.greeting="Hello"; return SUCCESS; } // getters and setters for greeting ... <s:property value="greeting" /> The problem is when the secured annotation is present the jsp shows nothing for the member variable but when @Secured is removed the whole thing behaves properly and shows the message that was set into the member variable. It appears that the actual security is working ok but when enabled via the annotation the member variable (or maybe the instance of the action) is not making its way onto the value stack. I cant see any error messages.

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• XDocument default namespace

  - by Anthony Faull

  How can I set the default namespace of an existing XDocument (so I can deserialize it with DataContractSerializer). I tried the following: var doc = XDocument.Parse("<widget/>"); var attrib = new XAttribute("xmlns", "http://schemas.datacontract.org/2004/07/Widgets"); doc.Root.Add(attrib); The exception I get is is The prefix '' cannot be redefined from '' to 'http://schemas.datacontract.org/2004/07/Widgets' within the same start element tag. Any ideas?

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• Upload Large files(1GB)-ASP.net

  - by Ramya Raj

  I need to upload large files of atleast 1GB file size. I am using ASP.Net, C# and IIS 5.1 as my development platform. I am using HIF.PostedFile.InputStream.Read(fileBytes,0,HIF.PostedFile.ContentLength) before using File.WriteAllBytes(filePath, fileByteArray)(doesnt go here but gives System.OutOfMemoryException' exception) Currently i have set the httpRuntime to executionTimeout="999999" maxRequestLength="2097151"(thats 2GB!) useFullyQualifiedRedirectUrl="true" minFreeThreads="8" minLocalRequestFreeThreads="4" appRequestQueueLimit="5000" enableVersionHeader="true" requestLengthDiskThreshold="8192" Also i have set maxAllowedContentLength="2097151" (guess its only for IIS7) I have changed IIS connection timeout to 999,999 secs too. I am unable to upload files of even 4578KB(Ajaz-Uploader.zip)

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• How to populate gridview on button_click after searching from access database?

  - by Usman

  I am creating a form in c#.net . I want to populate the gridview only on button click with entries meeting search criteria. I have tried but on searching ID it works but on searching FirstName it gives error plz check SQL also. My Code behind private void button1_Click(object sender, EventArgs e) { try { string strConn = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=L:/New project/Project/Project/Data.accdb"; string sql = "SELECT * FROM AddressBook WHERE FirstName='" + textBox1.Text.ToString(); OleDbConnection connection = new OleDbConnection(strConn); OleDbDataAdapter dataadapter = new OleDbDataAdapter(sql, connection); DataSet ds = new DataSet(); connection.Open(); dataadapter.Fill(ds, "AddressBook"); connection.Close(); dataGridView1.DataSource = ds; dataGridView1.DataMember = "AddressBook"; } catch (System.Exception err) { this.label27.Visible = true; this.label27.Text = err.Message.ToString(); } }

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• "paste" listener on a SWT widget

  - by Fredrik

  I have an application with a SWT widget, say a org.eclipse.swt.widgets.Text, and want to add some control to the paste function. The idea is that if the user can paste a string of IDs, I detect that, run some code and paste the object that corresponds to the IDs. So I'm looking for some "ClipBoardListener" of some sort to add to my widget, but that doesnt seem to exist. A keylistener would only trap the pastes done by key and then you would have to deal with different key combos for pasting in different OS's. Based on this java 1.2 question I tried subclassing the text class and override the inser method, but that didnt work Exception in thread "main" org.eclipse.swt.SWTException: Subclassing not allowed Seemed like an ugly solution anyway.

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• Cant see images on print preview

  - by Viren

  I been ask to lay a page where user can click on print option to print that page All the code is hooked up the print command works with one exception the images on web page arent getting reflected in print preview . there isnt any special stylesheet applied for printing to be specific the page has no stylesheet The code for print is given below <a href="javascript:window.print()">Print</a> Attaching the screenshot of the page And the print preview page for better understanding Note : Each images along with qrcode code is render using iframe so what you in web page contain 2 iframe each row to display qrode along with images of a products

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• Trigger the change event of a textbox in jQuery

  - by Danny Chen

  I have an asp:TextBox with asp:RegularExpressionValidator to validate if it's a number. Obviously an onchange event will be attached to this textbox while rendering. Also I add a change event at $(document).ready to make some calculation when the value is changed. <asp:TextBox id="myText" runat="server" /> <asp:regularexpressionvalidator id="myRev" ControlToValidate="myText" runat="server">*</asp:regularexpressionvalidator> $(document).ready(function(){ $('[id$=myText]').bind('change',function(){ //do something }).change(); //force the change event at the very beginning }); My function will be executed later than the .net generated js because of the register time. But the .net js throws an error. I traced in the js: function ValidatorOnChange(event) { ... } and found that all of event.fromElement,event.toElement,event.srcElement are null which causes the exception. Did I do something wrong? Any solutions? Thanks.

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