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  • DNS NAmeserver Aname and cname records

    - by David
    Hi - I am inexperienced in the configuration of DNS and have an issue with dominan hosting set up. I have two domains 'www.mydomain1.com' and 'www.mydomain2.com', with mydomain2 pointed at the same place as mydomain1. The domains were passed to me recently by the person who previoulsy controlled them. I have an account with fasthosts in the uk. When I accepted the domains I could not access the DNS settings and enquired with fasthosts as to why. The replied saying 'The delegate hosting option for both domains were enabled and this is the reason why you were unable to find the option to edit the advanced DNS records. I have now disabled the delegate hosting option so you can now edit the advanced DNS records for both domains in your account.' When i log into the fasthost control panel now i can access the DNS controls but both domains have no A Record of Cname record set up. I am concerned that fasthosts have blatted the previous Nameserver entries and set me up on theirs but not added any record. 'www.mydomain1.com' currently still works but 'www.mydomain2.com' does not find the site anymore. i am worried i will lose mydomain1 to as teh dns changes filter through the system. my webhosting is at 'xxx.xxx.xxx.xxx/mydomain1.com/' and this is where I want both domains to point. Any advice would be much appreciated. one thing which is confusing me is that because I am on a shared server I have to put 'xxx.xxx.xxx.xxx/mydomain1.com/' to get to my site rather than just 'xxx.xxx.xxx.xxx'. The form on fasthosts for the aname record only allows an IP to be entered - does it add the mydomain1.com/ onto the end itself? Thanks for any help given - I'm quite worried about this David

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  • How to avoid big and clumpsy UITableViewController on iOS?

    - by Johan Karlsson
    I have a problem when implementing the MVC-pattern on iOS. I have searched the Internet but seems not to find any nice solution to this problem. Many UITableViewController implementations seems to be rather big. Most example I have seen lets the UITableViewController implement UITableViewDelegate and UITableViewDataSource. These implementations are a big reason why UITableViewControlleris getting big. One solution would be to create separate classes that implements UITableViewDelegate and UITableViewDataSource. Of course these classes would have to have a reference to the UITableViewController. Are there any drawbacks using this solution? In general I think you should delegate the functionality to other "Helper" classes or similar, using the delegate pattern. Are there any well established ways of solving this problem? I do not want the model to contain to much functionality, nor the view. A believe that the logic should really be in the controller class, since this is one of the cornerstones of the MVC-pattern. But the big question is; How should you divide the controller of a MVC-implementation into smaller manageable pieces? (Applies to MVC in iOS in this case) There might be a general pattern for solving this, although I am specifically looking for a solution for iOS. Please give an example of a good pattern for solving this issue. Also an argument why this solution is awesome.

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  • PLINQ Adventure Land - WaitForAll

    - by adweigert
    PLINQ is awesome for getting a lot of work done fast, but one thing I haven't figured out yet is how to start work with PLINQ but only let it execute for a maximum amount of time and react if it is taking too long. So, as I must admit I am still learning PLINQ, I created this extension in that ignorance. It behaves similar to ForAll<> but takes a timeout and returns false if the threads don't complete in the specified amount of time. Hope this helps someone else take PLINQ further, it definitely has helped for me ...  public static bool WaitForAll<T>(this ParallelQuery<T> query, TimeSpan timeout, Action<T> action) { Contract.Requires(query != null); Contract.Requires(action != null); var exception = (Exception)null; var cts = new CancellationTokenSource(); var forAllWithCancellation = new Action(delegate { try { query.WithCancellation(cts.Token).ForAll(action); } catch (OperationCanceledException) { // NOOP } catch (AggregateException ex) { exception = ex; } }); var mrs = new ManualResetEvent(false); var callback = new AsyncCallback(delegate { mrs.Set(); }); var result = forAllWithCancellation.BeginInvoke(callback, null); if (mrs.WaitOne(timeout)) { forAllWithCancellation.EndInvoke(result); if (exception != null) { throw exception; } return true; } else { cts.Cancel(); return false; } }

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  • DNS NAmeserver Aname and cname records [closed]

    - by David
    I am inexperienced in the configuration of DNS and have an issue with dominan hosting set up. I have two domains 'www.mydomain1.com' and 'www.mydomain2.com', with mydomain2 pointed at the same place as mydomain1. The domains were passed to me recently by the person who previoulsy controlled them. I have an account with Fasthosts in the UK. When I accepted the domains I could not access the DNS settings and inquired with fasthosts as to why. The reply was: The delegate hosting option for both domains were enabled and this is the reason why you were unable to find the option to edit the advanced DNS records. I have now disabled the delegate hosting option so you can now edit the advanced DNS records for both domains in your account. When I log into the Fasthost control panel now I can access the DNS controls but both domains have no A record or Cname record set up. I am concerned that Fasthosts have blatted the previous Nameserver entries and set me up on theirs but not added any record. 'www.mydomain1.com' currently still works but 'www.mydomain2.com' does not find the site anymore. I am worried I will lose mydomain1 to as the DNS changes filter through the system. my webhosting is at 'xxx.xxx.xxx.xxx/mydomain1.com/' and this is where I want both domains to point. Any advice would be much appreciated. One thing which is confusing me is that because I am on a shared server I have to put 'xxx.xxx.xxx.xxx/mydomain1.com/' to get to my site rather than just 'xxx.xxx.xxx.xxx'. The form on Fasthosts for the A name record only allows an IP to be entered - does it add the mydomain1.com/ onto the end itself? Thanks for any help given - I'm quite worried about this David

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  • How to avoid big and clumsy UITableViewController on iOS?

    - by Johan Karlsson
    I have a problem when implementing the MVC-pattern on iOS. I have searched the Internet but seems not to find any nice solution to this problem. Many UITableViewController implementations seems to be rather big. Most examples I have seen lets the UITableViewController implement <UITableViewDelegate> and <UITableViewDataSource>. These implementations are a big reason why UITableViewControlleris getting big. One solution would be to create separate classes that implements <UITableViewDelegate> and <UITableViewDataSource>. Of course these classes would have to have a reference to the UITableViewController. Are there any drawbacks using this solution? In general I think you should delegate the functionality to other "Helper" classes or similar, using the delegate pattern. Are there any well established ways of solving this problem? I do not want the model to contain too much functionality, nor the view. I believe that the logic should really be in the controller class, since this is one of the cornerstones of the MVC-pattern. But the big question is: How should you divide the controller of a MVC-implementation into smaller manageable pieces? (Applies to MVC in iOS in this case) There might be a general pattern for solving this, although I am specifically looking for a solution for iOS. Please give an example of a good pattern for solving this issue. Please provide an argument why your solution is awesome.

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  • Should I pick up a functional programming language?

    - by Statement
    I have recently been more concerned about the way I write my code. After reading a few books on design patterns (and overzealous implementation of them, I'm sure) I have shifted my thinking greatly toward encapsulating that which change. I tend to notice that I write less interfaces and more method-oriented code, where I love to spruce life into old classes with predicates, actions and other delegate tasks. I tend to think that it's often the actions that change, so I encapsulate those. I even often, although not always, break down interfaces to a single method, and then I prefer to use a delegate for the task instead of forcing client code to create a new class. So I guess it then hit me. Should I be doing functional programming instead? Edit: I may have a misconception about functional programming. Currently my language of choice is C#, and I come from a C++ background. I work as a game developer but I am currently unemployed. I have a great passion for architecture. My virtues are clean, flexible, reusable and maintainable code. I don't know if I have been poisoned by these ways or if it is for the better. Am I having a refactoring fever or should I move on? I understand this might be a question about "use the right tool for the job", but I'd like to hear your thoughts. Should I pick up a functional language? One of my fear factors is to leave the comfort of Visual Studio.

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  • Events Driven Library XNA C#

    - by SchautDollar
    Language: C# w/ XNA Framework Relevant and Hopefully Helpful Background Info: I am making a library using the XNA framework for games I make with XNA. The Library has a folder(Namespace) dedication to the GUI. The GUI Controls inherit a base class hooked with the appropriate Interfaces. After a control is made, the programmer can hook the control with a "Frame" or "Module" that will tell the controls when to update and draw with an event. To make a "Frame" or "Module", you would inherit a class with the details coded in. (Kind of how win forms does it.) My reason for doing this is to simplify the process of creating menus with intractable controls. The only way I could think of for making the events for all the controls to function without being class specific would be to typecast a control to an object and typecast it back. (As I have read, this can be terribly inefficient.) Problem: Unfortunately, after I have implemented interfaces into the base classes and changed public delegate void ClickedHandler(BaseControl cntrl); to public delegate void ClickedHandler(Object cntrl, EventArgs e); my game has decreased in performance. This performance could be how I am firing the events, as what happens is the one menu will start fine, but then slowly but surely will freeze up. Every other frame works just fine, I just think it has something to do with the events and... that is why I am asking about them. Question: Is there a better more industry way of dealing with GUI Libraries other then using and implementing Events? Goal: To create a reusable feature rich XNA Control Library implementing performance enhancing standards and so on. Thank-you very much for taking your time to read this. I also hope this will help others possibly facing what I am facing right now.

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  • Banshee crashes consistently - is there a fix?

    - by user36334
    Since updating to ubuntu 11.10 I've had trouble with banshee. In particular when I run it I find that it crashes within an hour without fail. I get the following Unhandled Exception: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.NullReferenceException: Object reference not set to an instance of an object at Mono.Zeroconf.Providers.AvahiDBus.BrowseService.DisposeResolver () [0x00000] in <filename unknown>:0 at Mono.Zeroconf.Providers.AvahiDBus.BrowseService.Dispose () [0x00000] in <filename unknown>:0 at Mono.Zeroconf.Providers.AvahiDBus.ServiceBrowser.OnItemRemove (Int32 interface, Protocol protocol, System.String name, System.String type, System.String domain, LookupResultFlags flags) [0x00000] in <filename unknown>:0 at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&) at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0 --- End of inner exception stack trace --- at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0 at System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) [0x00000] in <filename unknown>:0 at System.Delegate.DynamicInvokeImpl (System.Object[] args) [0x00000] in <filename unknown>:0 at System.MulticastDelegate.DynamicInvokeImpl (System.Object[] args) [0x00000] in <filename unknown>:0 at System.Delegate.DynamicInvoke (System.Object[] args) [0x00000] in <filename unknown>:0 at NDesk.DBus.Connection.HandleSignal (NDesk.DBus.Message msg) [0x00000] in <filename unknown>:0 at NDesk.DBus.Connection.DispatchSignals () [0x00000] in <filename unknown>:0 at NDesk.DBus.Connection.Iterate () [0x00000] in <filename unknown>:0 at Mono.Zeroconf.Providers.AvahiDBus.DBusManager.IterateThread (System.Object o) [0x00000] in <filename unknown>:0 Does anyone else also have this problem?

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  • Use CompiledQuery.Compile to improve LINQ to SQL performance

    - by Michael Freidgeim
    After reading DLinq (Linq to SQL) Performance and in particular Part 4  I had a few questions. If CompiledQuery.Compile gives so much benefits, why not to do it for all Linq To Sql queries? Is any essential disadvantages of compiling all select queries? What are conditions, when compiling makes whose performance, for how much percentage? World be good to have default on application config level or on DBML level to specify are all select queries to be compiled? And the same questions about Entity Framework CompiledQuery Class. However in comments I’ve found answer  of the author ricom 6 Jul 2007 3:08 AM Compiling the query makes it durable. There is no need for this, nor is there any desire, unless you intend to run that same query many times. SQL provides regular select statements, prepared select statements, and stored procedures for a reason.  Linq now has analogs. Also from 10 Tips to Improve your LINQ to SQL Application Performance   If you are using CompiledQuery make sure that you are using it more than once as it is more costly than normal querying for the first time. The resulting function coming as a CompiledQuery is an object, having the SQL statement and the delegate to apply it.  And your delegate has the ability to replace the variables (or parameters) in the resulting query. However I feel that many developers are not informed enough about benefits of Compile. I think that tools like FxCop and Resharper should check the queries  and suggest if compiling is recommended. Related Articles for LINQ to SQL: MSDN How to: Store and Reuse Queries (LINQ to SQL) 10 Tips to Improve your LINQ to SQL Application Performance Related Articles for Entity Framework: MSDN: CompiledQuery Class Exploring the Performance of the ADO.NET Entity Framework - Part 1 Exploring the Performance of the ADO.NET Entity Framework – Part 2 ADO.NET Entity Framework 4.0: Making it fast through Compiled Query

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  • StarterSTS 1.1 CTP &ndash; ActAs Support

    - by Your DisplayName here!
    Due to popular demand, I added identity delegation (aka ActAs) support to StarterSTS. To give this feature a try, first download the new bits and add a enableActAs = true to startersts.config. You then have to configure which user account is allowed to delegate, as well as the target realm to delegate to. This is done in usermappings.config, e.g.: <userMappings xmlns="http://www.thinktecture.com/configuration/usermappings">     <user name="middletier">       <mappings>         <mapping type="ActAs"                  value="https://server/service.svc" />       </mappings>     </user>   </users> </userMappings> Please use the forum for any feedback. thanks!

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  • Should I always encapsulate an internal data structure entirely?

    - by Prog
    Please consider this class: class ClassA{ private Thing[] things; // stores data // stuff omitted public Thing[] getThings(){ return things; } } This class exposes the array it uses to store data, to any client code interested. I did this in an app I'm working on. I had a ChordProgression class that stores a sequence of Chords (and does some other things). It had a Chord[] getChords() method that returned the array of chords. When the data structure had to change (from an array to an ArrayList), all client code broke. This made me think - maybe the following approach is better: class ClassA{ private Thing[] things; // stores data // stuff omitted public Thing[] getThing(int index){ return things[index]; } public int getDataSize(){ return things.length; } public void setThing(int index, Thing thing){ things[index] = thing; } } Instead of exposing the data structure itself, all of the operations offered by the data structure are now offered directly by the class enclosing it, using public methods that delegate to the data structure. When the data structure changes, only these methods have to change - but after they do, all client code still works. Note that collections more complex than arrays might require the enclosing class to implement even more than three methods just to access the internal data structure. Is this approach common? What do you think of this? What downsides does it have other? Is it reasonable to have the enclosing class implement at least three public methods just to delegate to the inner data structure?

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  • CLR via C# 3rd Edition is out

    - by Abhijeet Patel
    Time for some book news update. CLR via C#, 3rd Edition seems to have been out for a little while now. The book was released in early Feb this year, and needless to say my copy is on it’s way. I can barely wait to dig in and chew on the goodies that one of the best technical authors and software professionals I respect has in store. The 2nd edition of the book was an absolute treat and this edition promises to be no less. Here is a brief description of what’s new and updated from the 2nd edition. Part I – CLR Basics Chapter 1-The CLR’s Execution Model Added about discussion about C#’s /optimize and /debug switches and how they relate to each other. Chapter 2-Building, Packaging, Deploying, and Administering Applications and Types Improved discussion about Win32 manifest information and version resource information. Chapter 3-Shared Assemblies and Strongly Named Assemblies Added discussion of TypeForwardedToAttribute and TypeForwardedFromAttribute. Part II – Designing Types Chapter 4-Type Fundamentals No new topics. Chapter 5-Primitive, Reference, and Value Types Enhanced discussion of checked and unchecked code and added discussion of new BigInteger type. Also added discussion of C# 4.0’s dynamic primitive type. Chapter 6-Type and Member Basics No new topics. Chapter 7-Constants and Fields No new topics. Chapter 8-Methods Added discussion of extension methods and partial methods. Chapter 9-Parameters Added discussion of optional/named parameters and implicitly-typed local variables. Chapter 10-Properties Added discussion of automatically-implemented properties, properties and the Visual Studio debugger, object and collection initializers, anonymous types, the System.Tuple type and the ExpandoObject type. Chapter 11-Events Added discussion of events and thread-safety as well as showing a cool extension method to simplify the raising of an event. Chapter 12-Generics Added discussion of delegate and interface generic type argument variance. Chapter 13-Interfaces No new topics. Part III – Essential Types Chapter 14-Chars, Strings, and Working with Text No new topics. Chapter 15-Enums Added coverage of new Enum and Type methods to access enumerated type instances. Chapter 16-Arrays Added new section on initializing array elements. Chapter 17-Delegates Added discussion of using generic delegates to avoid defining new delegate types. Also added discussion of lambda expressions. Chapter 18-Attributes No new topics. Chapter 19-Nullable Value Types Added discussion on performance. Part IV – CLR Facilities Chapter 20-Exception Handling and State Management This chapter has been completely rewritten. It is now about exception handling and state management. It includes discussions of code contracts and constrained execution regions (CERs). It also includes a new section on trade-offs between writing productive code and reliable code. Chapter 21-Automatic Memory Management Added discussion of C#’s fixed state and how it works to pin objects in the heap. Rewrote the code for weak delegates so you can use them with any class that exposes an event (the class doesn’t have to support weak delegates itself). Added discussion on the new ConditionalWeakTable class, GC Collection modes, Full GC notifications, garbage collection modes and latency modes. I also include a new sample showing how your application can receive notifications whenever Generation 0 or 2 collections occur. Chapter 22-CLR Hosting and AppDomains Added discussion of side-by-side support allowing multiple CLRs to be loaded in a single process. Added section on the performance of using MarshalByRefObject-derived types. Substantially rewrote the section on cross-AppDomain communication. Added section on AppDomain Monitoring and first chance exception notifications. Updated the section on the AppDomainManager class. Chapter 23-Assembly Loading and Reflection Added section on how to deploy a single file with dependent assemblies embedded inside it. Added section comparing reflection invoke vs bind/invoke vs bind/create delegate/invoke vs C#’s dynamic type. Chapter 24-Runtime Serialization This is a whole new chapter that was not in the 2nd Edition. Part V – Threading Chapter 25-Threading Basics Whole new chapter motivating why Windows supports threads, thread overhead, CPU trends, NUMA Architectures, the relationship between CLR threads and Windows threads, the Thread class, reasons to use threads, thread scheduling and priorities, foreground thread vs background threads. Chapter 26-Performing Compute-Bound Asynchronous Operations Whole new chapter explaining the CLR’s thread pool. This chapter covers all the new .NET 4.0 constructs including cooperative cancelation, Tasks, the aralle class, parallel language integrated query, timers, how the thread pool manages its threads, cache lines and false sharing. Chapter 27-Performing I/O-Bound Asynchronous Operations Whole new chapter explaining how Windows performs synchronous and asynchronous I/O operations. Then, I go into the CLR’s Asynchronous Programming Model, my AsyncEnumerator class, the APM and exceptions, Applications and their threading models, implementing a service asynchronously, the APM and Compute-bound operations, APM considerations, I/O request priorities, converting the APM to a Task, the event-based Asynchronous Pattern, programming model soup. Chapter 28-Primitive Thread Synchronization Constructs Whole new chapter discusses class libraries and thread safety, primitive user-mode, kernel-mode constructs, and data alignment. Chapter 29-Hybrid Thread Synchronization Constructs Whole new chapter discussion various hybrid constructs such as ManualResetEventSlim, SemaphoreSlim, CountdownEvent, Barrier, ReaderWriterLock(Slim), OneManyResourceLock, Monitor, 3 ways to solve the double-check locking technique, .NET 4.0’s Lazy and LazyInitializer classes, the condition variable pattern, .NET 4.0’s concurrent collection classes, the ReaderWriterGate and SyncGate classes.

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  • Implementing an Interceptor Using NHibernate’s Built In Dynamic Proxy Generator

    - by Ricardo Peres
    NHibernate 3.2 came with an included proxy generator, which means there is no longer the need – or the possibility, for that matter – to choose Castle DynamicProxy, LinFu or Spring. This is actually a good thing, because it means one less assembly to deploy. Apparently, this generator was based, at least partially, on LinFu. As there are not many tutorials out there demonstrating it’s usage, here’s one, for demonstrating one of the most requested features: implementing INotifyPropertyChanged. This interceptor, of course, will still feature all of NHibernate’s functionalities that you are used to, such as lazy loading, and such. We will start by implementing an NHibernate interceptor, by inheriting from the base class NHibernate.EmptyInterceptor. This class does not do anything by itself, but it allows us to plug in behavior by overriding some of its methods, in this case, Instantiate: 1: public class NotifyPropertyChangedInterceptor : EmptyInterceptor 2: { 3: private ISession session = null; 4:  5: private static readonly ProxyFactory factory = new ProxyFactory(); 6:  7: public override void SetSession(ISession session) 8: { 9: this.session = session; 10: base.SetSession(session); 11: } 12:  13: public override Object Instantiate(String clazz, EntityMode entityMode, Object id) 14: { 15: Type entityType = Type.GetType(clazz); 16: IProxy proxy = factory.CreateProxy(entityType, new _NotifyPropertyChangedInterceptor(), typeof(INotifyPropertyChanged)) as IProxy; 17: 18: _NotifyPropertyChangedInterceptor interceptor = proxy.Interceptor as _NotifyPropertyChangedInterceptor; 19: interceptor.Proxy = this.session.SessionFactory.GetClassMetadata(entityType).Instantiate(id, entityMode); 20:  21: this.session.SessionFactory.GetClassMetadata(entityType).SetIdentifier(proxy, id, entityMode); 22:  23: return (proxy); 24: } 25: } Then we need a class that implements the NHibernate dynamic proxy behavior, let’s place it inside our interceptor, because it will only need to be used there: 1: class _NotifyPropertyChangedInterceptor : NHibernate.Proxy.DynamicProxy.IInterceptor 2: { 3: private PropertyChangedEventHandler changed = delegate { }; 4:  5: public Object Proxy 6: { 7: get; 8: set;} 9:  10: #region IInterceptor Members 11:  12: public Object Intercept(InvocationInfo info) 13: { 14: Boolean isSetter = info.TargetMethod.Name.StartsWith("set_") == true; 15: Object result = null; 16:  17: if (info.TargetMethod.Name == "add_PropertyChanged") 18: { 19: PropertyChangedEventHandler propertyChangedEventHandler = info.Arguments[0] as PropertyChangedEventHandler; 20: this.changed += propertyChangedEventHandler; 21: } 22: else if (info.TargetMethod.Name == "remove_PropertyChanged") 23: { 24: PropertyChangedEventHandler propertyChangedEventHandler = info.Arguments[0] as PropertyChangedEventHandler; 25: this.changed -= propertyChangedEventHandler; 26: } 27: else 28: { 29: result = info.TargetMethod.Invoke(this.Proxy, info.Arguments); 30: } 31:  32: if (isSetter == true) 33: { 34: String propertyName = info.TargetMethod.Name.Substring("set_".Length); 35: this.changed(this.Proxy, new PropertyChangedEventArgs(propertyName)); 36: } 37:  38: return (result); 39: } 40:  41: #endregion 42: } What this does for every interceptable method (those who are either virtual or from the INotifyPropertyChanged) is: For methods that came from the INotifyPropertyChanged interface, add_PropertyChanged and remove_PropertyChanged (yes, events are methods ), we add an implementation that adds or removes the event handlers to the delegate which we declared as changed; For all the others, we direct them to the place where they are actually implemented, which is the Proxy field; If the call is setting a property, it fires afterwards the PropertyChanged event. In order to use this, we need to add the interceptor to the Configuration before building the ISessionFactory: 1: using (ISessionFactory factory = cfg.SetInterceptor(new NotifyPropertyChangedInterceptor()).BuildSessionFactory()) 2: { 3: using (ISession session = factory.OpenSession()) 4: using (ITransaction tx = session.BeginTransaction()) 5: { 6: Customer customer = session.Get<Customer>(100); //some id 7: INotifyPropertyChanged inpc = customer as INotifyPropertyChanged; 8: inpc.PropertyChanged += delegate(Object sender, PropertyChangedEventArgs e) 9: { 10: //fired when a property changes 11: }; 12: customer.Address = "some other address"; //will raise PropertyChanged 13: customer.RecentOrders.ToList(); //will trigger the lazy loading 14: } 15: } Any problems, questions, do drop me a line!

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  • Getting "Using two-stage rotation animation" warning with UIImagePickerController

    - by Kay
    Hi, I wrote simple code to test UIImagePickerController: @implementation ProfileEditViewController - (void)viewDidLoad { [super viewDidLoad]; photoTaker_ = [[UIImagePickerController alloc] init]; photoTaker_.delegate = self; photoTaker_.sourceType = UIImagePickerControllerSourceTypeCamera; photoTaker_.showsCameraControls = NO; } - (void)viewDidAppear: (BOOL)animated { [self presentModalViewController: photoTaker_ animated: NO]; } @end And I'm getting strange warnings like the following: 2010-05-20 17:53:13.838 TestProj[2814:307] Using two-stage rotation animation. To use the smoother single-stage animation, this application must remove two-stage method implementations. 2010-05-20 17:53:13.849 TestProj[2814:307] Using two-stage rotation animation is not supported when rotating more than one view controller or view controllers not the window delegate Got any idea what this is about? Thanks a lot in advance!

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  • Ipad UIImagePickerController and UIPopoverController error

    - by nishantcm
    Hi, I am using this code to open a popover with imagepicker -(IBAction)photosAction:(id)sender { // dismiss any left over popovers here UIImagePickerController* picker = [[UIImagePickerController alloc] init]; picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary; picker.delegate = self; UIPopoverController *popover = [[UIPopoverController alloc] initWithContentViewController:picker]; self.popoverController = popover; popoverController.delegate = self; [popoverController presentPopoverFromBarButtonItem:sender permittedArrowDirections:UIPopoverArrowDirectionUp animated:YES]; [picker release]; But this results in this error request for member 'popoverController' in something not a structure or union and this error 'popoverController' undeclared (first use in this function). Also I want to dismiss the popover when the image is selected. What code should I put in the following function to dismiss the popover once the image is selected. (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { Thanks for the help!

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  • smartgwt listgrid not updating

    - by user1488594
    I'm using Smartgwt Lgpl 3.0p. I had a problem with ListGrid column width. I'm using listGrid.setAutoFitWidthApproach(AutoFitWidthApproach.BOTH); When first time listGrid.setData() is called, Column width is set according to the Titles and data is cropped but if listGrid.setData() is called again it works fine as expected. I think I have a problem with combination of listGrid properties. I tried to reproduce problem in standalone example but no success, Here is my code: final ListGrid listGridShipmentsItems; final ListGridField lstGridOrderItem = new ListGridField("orderItem"); final ListGridField lstGridPartNumber = new ListGridField("partNumber"); final ListGridField lstGridProductDesc1 = new ListGridField("productDescriptionLine1"); final ListGridField lstGridBillingPieces = new ListGridField("billingPieces"); final ListGridField lstGridBillingWeight = new ListGridField("billingWeight"); final ListGridField lstGridCertificates = new ListGridField("certificatesText"); final ListGridField lstGridInvoiceNumber = new ListGridField("invoiceNumberTextAndImage"); // create ListGrid listGridShipmentsItems = new ListGrid() { @Override protected Canvas createRecordComponent(final ListGridRecord record, Integer colNum){ String fieldName = listGridShipmentsItems.getFieldName(colNum); if(fieldName.equals("certificatesText")) { Label certificates = new Label(record.getAttribute("certificates")); certificates.setAutoHeight(); certificates.setAutoWidth(); certificates.setWrap(false); certificates.setBaseStyle("dataGridLabel"); certificates.setPrompt(delegate.i18nResolver.tooltip("CMW-CERT-2","Certificates")); certificates.setHoverWrap(false); certificates.setHoverWidth(certificates.getPrompt().length()*5); certificates.addClickHandler(new ClickHandler(){ @Override public void onClick(ClickEvent event) { delegate.showCertificatesByShipmentsItems(record); } }); return certificates; } else if(fieldName.equals("invoiceNumberTextAndImage")) { HLayout hLayout = new HLayout(10); hLayout.setAutoHeight(); hLayout.setAutoWidth(); hLayout.setAlign(VerticalAlignment.CENTER); Label invoiceNumber = new Label(); if(record.getAttribute("invoiceFlag").trim().equalsIgnoreCase("1")) { if(!record.getAttribute("updateReference").trim().equalsIgnoreCase("")) { invoiceNumber.setContents(record.getAttribute("updateReference")); } else { invoiceNumber.setContents(""); } } else { invoiceNumber.setContents(""); } invoiceNumber.setAutoHeight(); invoiceNumber.setAutoWidth(); invoiceNumber.setWrap(false); invoiceNumber.setBaseStyle("fieldLabel"); invoiceNumber.setValign(VerticalAlignment.CENTER); ImgButton invoicesPdfImg = new ImgButton(); invoicesPdfImg.setShowDown(false); invoicesPdfImg.setShowRollOver(false); invoicesPdfImg.setSrc(Icons.PDF_16X16); invoicesPdfImg.setHeight(16); invoicesPdfImg.setWidth(16); invoicesPdfImg.setPrompt(delegate.i18nResolver.tooltip("CMW-INV","Invoice")); invoicesPdfImg.setCursor(Cursor.POINTER); invoicesPdfImg.setHoverWrap(false); invoicesPdfImg.setHoverWidth(invoicesPdfImg.getPrompt().length()*5); invoicesPdfImg.addClickHandler(new ClickHandler() { public void onClick(ClickEvent event) { delegate.openInvoicesPDF(record); } }); hLayout.addMember(invoiceNumber); hLayout.addMember(invoicesPdfImg); return hLayout; } else { return null; } } }; // set initial properties GridController.setListGridInitialProperties(listGridShipmentsItems); /**Common method to set ListGrid initial properties*/ public static void setListGridInitialProperties(ListGrid listGrid) { listGrid.setWidth("100%"); listGrid.setHeight("100%"); listGrid.setShowAllRecords(true); listGrid.setLeaveScrollbarGap(false); listGrid.setSelectionType(SelectionStyle.SINGLE); listGrid.setAlternateRecordStyles(true); listGrid.setFixedRecordHeights(false); listGrid.setAutoFitWidthApproach(AutoFitWidthApproach.BOTH); //removing it will not show any column or only first column when grid is blank listGrid.setAutoFitFieldWidths(true); listGrid.setAutoFitFieldsFillViewport(false); listGrid.setCellPadding(5); listGrid.setCanSort(false); listGrid.setCanResizeFields(true); listGrid.setCanMultiSort(false); listGrid.setCanReorderRecords(false); listGrid.setCanReorderFields(false); listGrid.setAlternateRecordStyles(true); listGrid.setFastCellUpdates(false); listGrid.setShowHeaderContextMenu(false); listGrid.setEmptyMessage(""); listGrid.setBaseStyle("dataGrid"); listGrid.setBodyStyleName("dataGridBody"); listGrid.setHeaderBaseStyle("headerTitleStyle"); listGrid.setShowRecordComponentsByCell(true); listGrid.setShowRecordComponents(true); } Thanks,

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  • Objective-C NSMutableArray Count Causes EXC_BAD_ACCESS

    - by JoshEH
    I've been stuck on this for days and each time I come back to it I keep making my code more and more confusing to myself, lol. Here's what I'm trying to do. I have table list of charges, I tap on one and brings up a model view with charge details. Now when the model is presented a object is created to fetch a XML list of users and parses it and returns a NSMutableArray via a custom delegate. I then have a button that presents a picker popover, when the popover view is called the user array is used in an initWithArray call to the popover view. I know the data in the array is right, but when [pickerUsers count] is called I get an EXC_BAD_ACCESS. I assume it's a memory/ownership issue but nothing seems to help. Any help would be appreciated. Relevant code snippets: Charge Popover (Charge details model view): @interface ChargePopoverViewController ..... NSMutableArray *pickerUserList; @property (nonatomic, retain) NSMutableArray *pickerUserList; @implementation ChargePopoverViewController @synthesize whoOwesPickerButton, pickerUserList; - (void)viewDidLoad { JEHWebAPIPickerUsers *fetcher = [[JEHWebAPIPickerUsers alloc] init]; fetcher.delegate = self; [fetcher fetchUsers]; } -(void) JEHWebAPIFetchedUsers:(NSMutableArray *)theData { [pickerUserList release]; pickerUserList = theData; } - (void) pickWhoPaid: (id) sender { UserPickerViewController* content = [[UserPickerViewController alloc] initWithArray:pickerUserList]; UIPopoverController *popover = [[UIPopoverController alloc] initWithContentViewController:content]; [popover presentPopoverFromRect:whoPaidPickerButton.frame inView:self.view permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES]; content.delegate = self; } User Picker View Controller @interface UserPickerViewController ..... NSMutableArray *pickerUsers; @property(nonatomic, retain) NSMutableArray *pickerUsers; @implementation UserPickerViewController @synthesize pickerUsers; -(UserPickerViewController*) initWithArray:(NSMutableArray *)theUsers { self = [super init]; if ( self ) { self.pickerUsers = theUsers; } return self; } - (NSInteger)pickerView:(UIPickerView *)thePickerView numberOfRowsInComponent:(NSInteger)component { // Dies Here EXC_BAD_ACCESS, but NSLog(@"The content of array is%@",pickerUsers); shows correct array data return [pickerUsers count]; } I can provide additional code if it might help. Thanks in advance.

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  • iphone - UITapGestureRecognizer problem

    - by Mike
    I have two UIImageViews one as subview of the other. The subview is smaller and is centered on the screen. Both have UITapGestureRecognizer assigned and both were intended to respond to single taps. A single tap on the main view (= the area outside the subview) is fine, but a tap inside the subview is seen as the main view as a tap too. How can I have this to work independently? both views have setCancelsTouchesInView and setDelaysTouchesEnded set to NO and both have the same delegate (yes, I need to have the same delegate and cannot change that). How may I force the main view to ignore any tap on the area that belongs to its subview? thanks for any help.

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  • iPhone: How to Get Basic Authentication to HTTPS Web Service Using NSURLCredential

    - by ian1971
    I am trying to call an https web service (RESTful) using basic authentication. It works fine if I put the credentials in the url itself but I would rather add it to the request so that the password does not appear, for instance in an exception. I am using the following code: NSURLCredential *credential = [NSURLCredential credentialWithUser:@"myuser" password:@"mypassword" persistence:NSURLCredentialPersistenceForSession]; NSURLProtectionSpace *protectionSpace = [[NSURLProtectionSpace alloc] initWithHost:@"example.com" port:443 protocol:@"https" realm:nil authenticationMethod:NSURLAuthenticationMethodHTTPBasic]; [[NSURLCredentialStorage sharedCredentialStorage] setDefaultCredential:credential forProtectionSpace:protectionSpace]; NSURLConnection *theConnection = [NSURLConnection connectionWithRequest:theRequest delegate:self]; but it does not work. The didReceiveAuthenticationChallenge delegate method gets called and I can add a credential there but ideally I would send it with the request. Any ideas?

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  • How to marshal int* in C#?

    - by MartyIX
    Hi, I would like to call this method in unmanaged library: void __stdcall GetConstraints( unsigned int* puiMaxWidth, unsigned int* puiMaxHeight, unsigned int* puiMaxBoxes ); My solution: Delegate definition: [UnmanagedFunctionPointer(CallingConvention.StdCall)] private delegate void GetConstraintsDel(UIntPtr puiMaxWidth, UIntPtr puiMaxHeight, UIntPtr puiMaxBoxes); The call of the method: // PLUGIN NAME GetConstraintsDel getConstraints = (GetConstraintsDel)Marshal.GetDelegateForFunctionPointer(pAddressOfFunctionToCall, typeof(GetConstraintsDel)); uint maxWidth, maxHeight, maxBoxes; unsafe { UIntPtr a = new UIntPtr(&maxWidth); UIntPtr b = new UIntPtr(&maxHeight); UIntPtr c = new UIntPtr(&maxBoxes); getConstraints(a, b, c); } It works but I have to allow "unsafe" flag. Is there a solution without unsafe code? Or is this solution ok? I don't quite understand the implications of setting the project with unsafe flag. Thanks for help!

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  • Replacing UISplitViewController. New version isn't added for current orientation, frame size

    - by Justin Williams
    My application has two different modes I am switching between by replacing the two views in a UISplitViewController. This involves instantiating the new views and a new UISplitViewController. I then set the new detail view as the UISplitViewController's delegate. I'm running into an issue where when I replace the view controllers and splitview controller, they are not properly sized or added for the current orientation. For instance, if I have my iPad in UIDeviceOrientationPortraitUpsideDown the view will be upside down when I call addSubview, but will rotate to the proper orientation after a second. In another instance, if I have the device in landscape mode and swap the views, the detail view controller is not fully stretched to the size of the view. If I rotate the device to portrait and back to landscape, its resized properly. The code I'm using to create the new split view and view controllers is as follows. - (void)showNotes { teiphoneAppDelegate *appDelegate = (teiphoneAppDelegate *)[[UIApplication sharedApplication] delegate]; [appDelegate.splitViewController.view removeFromSuperview]; OMSavedScrapsController *notesViewController = [[OMSavedScrapsController alloc] initWithNibName:@"SavedScraps" bundle:nil]; UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:notesViewController]; ComposeViewController *noteDetailViewController = [[ComposeViewController alloc] initWithNibName:@"ComposeView-iPad" bundle:nil]; UISplitViewController *newSplitVC = [[UISplitViewController alloc] init]; newSplitVC.viewControllers = [NSArray arrayWithObjects:navController, noteDetailViewController, nil]; newSplitVC.delegate = noteDetailViewController; appDelegate.splitViewController = newSplitVC; // Fade in the new split view appDelegate.splitViewController.view.alpha = 0.0f; [appDelegate.window addSubview:appDelegate.splitViewController.view]; [appDelegate.window makeKeyAndVisible]; [UIView beginAnimations:nil context:appDelegate.window]; [UIView setAnimationDuration: 0.5f]; [UIView setAnimationCurve: UIViewAnimationCurveEaseInOut]; appDelegate.splitViewController.view.alpha = 1.0f; [UIView commitAnimations]; [notesViewController release]; [navController release]; [noteDetailViewController release]; [newSplitVC release]; } Any suggestions for how to get the new splitview to add for the device's current orientation and frame?

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  • WpfToolkit DataGrid does not work in Windows Phone 7

    - by Igor Zevaka
    I am trying to use WpfToolkit DataGrid in Windows Phone 7 project (Silverligt 4) and it's not working. Here is the XAML: <UserControl x:Class="SilverlightControls.Grid" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d" xmlns:wtk="clr-namespace:Microsoft.Windows.Controls;assembly=WPFToolkit" d:DesignHeight="480" d:DesignWidth="480"> <Grid x:Name="LayoutRoot" Background="#FF1F1F1F" Width="960"> <Grid x:Name="TitleGrid"> <TextBlock Text="{Binding Title}" Style="{StaticResource PhoneTextPageTitle2Style}"/> </Grid> <wtk:DataGrid> </wtk:DataGrid> </Grid> </UserControl> The project compiles fine but crashes at runtime trying to load this control. The best clue I got so far is from Visual Studio Designer. Once I add wtk:DataGrid to the control the visual designer does not load and below is the exception it displays. Could it be that WpfToolkit relies on PresentationFramework.dll and it's not available in SL4? System.Reflection.Adds.UnresolvedAssemblyException Type universe cannot resolve assembly: PresentationFramework, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35. at System.Reflection.Adds.AssemblyProxy.GetResolvedAssembly() at System.Reflection.Adds.AssemblyProxy.get_FullName() at Microsoft.Windows.Design.Metadata.ReflectionMetadataContext.PrepareAttributes(Reflectable`1 reflectableAssembly) at Microsoft.Windows.Design.Metadata.ReflectionMetadataContext.PrepareAttributes(Reflectable`1 reflectableType) at MS.Internal.Metadata.ClrType.GetAttributes[T](ReflectionMetadataContext context, IReflectable`1 member, ITypeMetadata attributeType, Boolean merge, AttributeMergeCache& cache) at MS.Internal.Metadata.ClrMember`1.GetLocalAttributes(ITypeMetadata attributeType) at MS.Internal.Design.Metadata.Xaml.XamlType.GetSpecialProperty(Int32 idx, PropertyIdentifier pid) at MS.Internal.Design.Metadata.Xaml.XamlType.get_ContentProperty() at Microsoft.Windows.Design.Metadata.Xaml.XamlExtensionImplementations.GetContentProperty(ITypeMetadata sourceType) at Microsoft.Windows.Design.Metadata.Xaml.XamlExtensions.GetContentProperty(ITypeMetadata source) at MS.Internal.Design.Metadata.ReflectionTypeNode.get_ContentProperty() at MS.Internal.Design.Markup.XmlElement.CalcChildWhitespaceImportant(XamlElement element) at MS.Internal.Design.Markup.XmlElement.ConvertChildrenToXaml(XamlElement result, PrefixScope scope, IParseContext context, IMarkupSourceProvider provider, Boolean childrenAsString) at MS.Internal.Design.Markup.XmlElement.ConvertToXaml(XamlElement parent, PrefixScope parentScope, IParseContext context, IMarkupSourceProvider provider) at MS.Internal.Design.Markup.XmlElement.ConvertChildrenToXaml(XamlElement result, PrefixScope scope, IParseContext context, IMarkupSourceProvider provider, Boolean childrenAsString) at MS.Internal.Design.Markup.XmlElement.ConvertToXaml(XamlElement parent, PrefixScope parentScope, IParseContext context, IMarkupSourceProvider provider) at MS.Internal.Design.DocumentModel.DocumentTrees.Markup.XamlSourceDocument.ParseElementFromSkeleton(XamlParseContext context, SkeletonNode node, XamlElement parent, Boolean fullElement) at MS.Internal.Design.DocumentModel.DocumentTrees.Markup.XamlSourceDocument.UpdateSkeleton(IDamageListener listener) at Microsoft.Windows.Design.DocumentModel.Trees.MarkupDocumentTreeManager.Update() at Microsoft.Windows.Design.DocumentModel.MarkupProducer.Update() at Microsoft.Windows.Design.DocumentModel.MarkupProducer.HandleMessage(DocumentTreeCoordinator sender, MessageKey key, MessageArguments args) at Microsoft.Windows.Design.DocumentModel.MarkupProducer.Microsoft.Windows.Design.DocumentModel.IDocumentTreeConsumer.HandleMessage(DocumentTreeCoordinator sender, MessageKey key, MessageArguments args) at Microsoft.Windows.Design.DocumentModel.DocumentTreeCoordinator.SendMessage[T](MessageKey`1 key, T args, Boolean isPrivateMessage) at Microsoft.Windows.Design.DocumentModel.DocumentTreeCoordinator.QueuedMessage`1.Microsoft.Windows.Design.DocumentModel.IQueuedMessage.Invoke() at Microsoft.Windows.Design.DocumentModel.DocumentTreeCoordinator.ProcessQueuedMessages(Object state) at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs) at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)

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  • How to dismiss the table view created in the root view controller in iphone?

    - by Warrior
    I am new to iphone development. I have created a navigation based application. In the rootviewcontroller class i have written the code for parsing a url and display the contents in the table.In the didSelectRowAtIndexPath method i have written code for playing the video. NSURL *movieURL = [NSURL URLWithString:@"http://url of movie"]; if (movieURL) { if ([movieURL scheme]) { MovietryAppDelegate *appDelegate = (MovietryAppDelegate *)[[UIApplication sharedApplication] delegate]; [appDelegate initAndPlayMovie:movieURL]; } } In the delegate class i have defined the initAndPlayMovie method.I used the Apple sample "movie player " for my reference .I want to dismiss the table view before the video is loaded and table view appear back as presentmodalcontroller on clicking "done" button on video player.I want my app to work like you tube application. Please help me out.Thanks.

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  • Cannot get UISearchBar Scope Bar to appear in Toolbar on iPad

    - by Jann
    This is really causing me fits. I put a toolbar on the IUView on the iPad. I added the following: Search Bar (not Search Bar and Search Display) to the toolbar. I set the options to be as follows: Show Cancel Button, Show Scope Bar, Scope Button Titles are: "Title1" and "Title2" (with Title2's radio button selected). Opaque, Clear Context and Auto Resize are checked. I hooked up the delegate of Search Bar to the "File's Owner" and linked it to IBOutlet theSearchBar. In my viewWillAppear I have the following: [theSearchBar setScopeButtonTitles:[NSArray arrayWithObjects:@"Near Me",@"Everywhere",nil]]; //Just in case: [theSearchBar setShowsScopeBar:YES]; //doesn't seem to do anything: //[theSearchBar sizeToFit]; searchDisplayController = [[UISearchDisplayController alloc] initWithSearchBar:theSearchBar contentsController:self]; [self setSearchDisplayController:searchDisplayController]; [searchDisplayController setDelegate:self]; [searchDisplayController setSearchResultsDataSource:self]; //again--does not seem to do anything..but people have suggested it: [theSearchBar sizeToFit]; Okay, so far, I thought, so good. So, I made the File's Owner .m file to be a delegate for: UISearchBarDelegate, UISearchDisplayDelegate. My issue: I have yet to implement the delegates necessary to do the search but still... shouldn't I be seeing the scopeBar next to the search field when I click into the search field? Just so you know I DO see the log of the characters I type, so the delegate is working. I have the following dummy functions in the .m file (just in case) // called when keyboard search button pressed - (void)searchBarSearchButtonClicked:(UISearchBar *)searchBar { NSLog(@"Search Button Clicked\n"); [theSearchBar resignFirstResponder]; } // called when cancel button pressed - (void)searchBarCancelButtonClicked:(UISearchBar *)searchBar { NSLog(@"Cancel Button Clicked\n"); [theSearchBar resignFirstResponder]; } - (void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText { NSLog(@"Search Text So Far: '%@'\n",searchText); } - (BOOL)searchBarShouldBeginEditing:(UISearchBar *)searchBar { return YES; } - (BOOL)searchBarShouldEndEditing:(UISearchBar *)searchBar { return YES; } Why doesn't the Scope Bar appear? A results UIPopoverController appears with the title "Results" and "No results found" (of course) when i type the first character in my search...but no scope bar. (not that i expect anything other than "No Results Found". I am wondering where the scope bar is supposed to appear...in the titleView of the UIPopover? In the toolbar to the right of the search area? Where?

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  • Reference from UITableViewCell to UITableView to UINavigationController

    - by Nick
    If the user taps and holds on a Foo table view cell for 2 seconds, a modal view should be shown. The modal view is also displayed when a new Foo is added to the cell. The modal view's delegate protocol is implemented by the parent UITableView subclass. My tap and hold detection code is in the Foo UITableViewCell class. I'm having difficulty referencing the parent tableview's navigation controller to display the modal view. FooModalViewController *modalController = [[FooModalViewController alloc] initWithNibName:@"FooModalViewController" bundle:nil]; FooTableViewController *tableView = (FooTableViewController *) self.superview; foo.delegate = tableView; Seems OK but I'm having problems referencing the navigation controller that contains the tableview.. The code below builds OK but throws an exception - NSOBject DoesNotRecognizeSelector. UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:modalController]; [[tableView.navigationController] presentModalViewController:navigationController animated:YES]; I think that perhaps my design is flawed..?

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