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• Inside Red Gate - Project teams

  - by Simon Cooper

  Within each division in Red Gate, development effort is structured around one or more project teams; currently, each division contains 2-3 separate teams. These are self contained units responsible for a particular development project. Project team structure The typical size of a development team varies, but is normally around 4-7 people - one project manager, two developers, one or two testers, a technical author (who is responsible for the text within the application, website content, and help documentation) and a user experience designer (who designs and prototypes the UIs) . However, team sizes can vary from 3 up to 12, depending on the division and project. As an rule, all the team sits together in the same area of the office. (Again, this is my experience of what happens. I haven't worked in the DBA division, and SQL Tools might have changed completely since I moved to .NET. As I mentioned in my previous post, each division is free to structure itself as it sees fit.) Depending on the project, and the other needs in the division, the tech author and UX designer may be shared between several projects. Generally, developers and testers work on one project at a time. If the project is a simple point release, then it might not need a UX designer at all. However, if it's a brand new product, then a UX designer and tech author will be involved right from the start. Developers, testers, and the project manager will normally stay together in the same team as they work on different projects, unless there's a good reason to split or merge teams for a particular project. Technical authors and UX designers will normally go wherever they are needed in the division, depending on what each project needs at the time. In my case, I was working with more or less the same people for over 2 years, all the way through SQL Compare 7, 8, and Schema Compare for Oracle. This helped to build a great sense of camaraderie wihin the team, and helped to form and maintain a team identity. This, in turn, meant we worked very well together, and so the final result was that much better (as well as making the work more fun). How is a project started and run? The product manager within each division collates user feedback and ideas, does lots of research, throws in a few ideas from people within the company, and then comes up with a list of what the division should work on in the next few years. This is split up into projects, and after each project is greenlit (I'll be discussing this later on) it is then assigned to a project team, as and when they become available (I'm sure there's lots of discussions and meetings at this point that I'm not aware of!). From that point, it's entirely up to the project team. Just as divisions are autonomous, project teams are also given a high degree of autonomy. All the teams in Red Gate use some sort of vaguely agile methodology; most use some variations on SCRUM, some have experimented with Kanban. Some store the project progress on a whiteboard, some use our bug tracker, others use different methods. It all depends on what the team members think will work best for them to get the best result at the end. From that point, the project proceeds as you would expect; code gets written, tests pass and fail, discussions about how to resolve various problems are had and decided upon, and out pops a new product, new point release, new internal tool, or whatever the project's goal was. The project manager ensures that everyone works together without too much bloodshed and that thrown missiles are constrained to Nerf bullets, the developers write the code, the testers ensure it actually works, and the tech author and UX designer ensure that people will be able to use the final product to solve their problem (after all, developers make lousy UI designers and technical authors). Projects in Red Gate last a relatively short amount of time; most projects are less than 6 months. The longest was 18 months. This has evolved as the company has grown, and I suspect is a side effect of the type of software Red Gate produces. As an ISV, we sell packaged software; we only get revenue when customers purchase the ready-made tools. As a result, we only get a sellable piece of software right at the end of a project. Therefore, the longer the project lasts, the more time and money has to be invested by the company before we get any revenue from it, and the riskier the project becomes. This drives the average project time down. Small project teams are the core of how Red Gate produces software, and are what the whole development effort of the company is built around. In my next post, I'll be looking at the office itself, and how all 200 of us manage to fit on two floors of a small office building.

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• Problems with opening CHM Help files from Network or Internet

  - by Rick Strahl

  As a publisher of a Help Creation tool called Html Help Help Builder, I’ve seen a lot of problems with help files that won't properly display actual topic content and displays an error message for topics instead. Here’s the scenario: You go ahead and happily build your fancy, schmanzy Help File for your application and deploy it to your customer. Or alternately you've created a help file and you let your customers download them off the Internet directly or in a zip file. The customer downloads the file, opens the zip file and copies the help file contained in the zip file to disk. She then opens the help file and finds the following unfortunate result:     The help file  comes up with all topics in the tree on the left, but a Navigation to the WebPage was cancelled or Operation Aborted error in the Help Viewer's content window whenever you try to open a topic. The CHM file obviously opened since the topic list is there, but the Help Viewer refuses to display the content. Looks like a broken help file, right? But it's not - it's merely a Windows security 'feature' that tries to be overly helpful in protecting you. The reason this happens is because files downloaded off the Internet - including ZIP files and CHM files contained in those zip files - are marked as as coming from the Internet and so can potentially be malicious, so do not get browsing rights on the local machine – they can’t access local Web content, which is exactly what help topics are. If you look at the URL of a help topic you see something like this:   mk:@MSITStore:C:\wwapps\wwIPStuff\wwipstuff.chm::/indexpage.htm which points at a special Microsoft Url Moniker that in turn points the CHM file and a relative path within that HTML help file. Try pasting a URL like this into Internet Explorer and you'll see the help topic pop up in your browser (along with a warning most likely). Although the URL looks weird this still equates to a call to the local computer zone, the same as if you had navigated to a local file in IE which by default is not allowed.  Unfortunately, unlike Internet Explorer where you have the option of clicking a security toolbar, the CHM viewer simply refuses to load the page and you get an error page as shown above. How to Fix This - Unblock the Help File There's a workaround that lets you explicitly 'unblock' a CHM help file. To do this: Open Windows Explorer Find your CHM file Right click and select Properties Click the Unblock button on the General tab Here's what the dialog looks like:   Clicking the Unblock button basically, tells Windows that you approve this Help File and allows topics to be viewed.   Is this insecure? Not unless you're running a really old Version of Windows (XP pre-SP1). In recent versions of Windows Internet Explorer pops up various security dialogs or fires script errors when potentially malicious operations are accessed (like loading Active Controls), so it's relatively safe to run local content in the CHM viewer. Since most help files don't contain script or only load script that runs pure JavaScript access web resources this works fine without issues. How to avoid this Problem As an application developer there's a simple solution around this problem: Always install your Help Files with an Installer. The above security warning pop up because Windows can't validate the source of the CHM file. However, if the help file is installed as part of an installation the installation and all files associated with that installation including the help file are trusted. A fully installed Help File of an application works just fine because it is trusted by Windows. Summary It's annoying as all hell that this sort of obtrusive marking is necessary, but it's admittedly a necessary evil because of Microsoft's use of the insecure Internet Explorer engine that drives the CHM Html Engine's topic viewer. Because help files are viewing local content and script is allowed to execute in CHM files there's potential for malicious code hiding in CHM files and the above precautions are supposed to avoid any issues. © Rick Strahl, West Wind Technologies, 2005-2012 Tweet !function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0];if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src="//platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs"); (function() { var po = document.createElement('script'); po.type = 'text/javascript'; po.async = true; po.src = 'https://apis.google.com/js/plusone.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(po, s); })();

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• 2011 The Year of Awesomesauce

  - by MOSSLover

  So I was talking to one of my friends, Cathy Dew, and I’m wondering how to start out this post.  What kind of title should I put?  Somehow we’re just randomly throwing things out and this title pops into my head the one you see above. I woke up today to the buzz of a text message.  I spent New Years laying around until 3 am watching Warehouse 13 Episodes and drinking champagne.  It was one of the best New Year’s I spent with my boyfriend and my cat.  I figured I would sleep in until Noon, but ended up waking up around 11:15 to that text message buzz.  I guess my DE, Rachel Appel, had texted me “Happy New Years”, because Rachel is that kind of person.  I immediately proceeded to check my email.  I noticed my live account had a hit.  The account I rarely ever use had an email.  I sort of had that sinking suspicion I was going to get Silverlight MVP right?  So I open the email and something out of the blue happens it says “blah blah blah SharePoint Server MVP blah blah…”.  I’m sitting here a little confused what?  Really?  Just about when you give up on something the unexplained happens.  I am grateful for what I have every day. So let me tell you a story.  I was a senior in high school and it was December 31st, 1999.  A couple days prior my grandmother was complaining she had a cold and her assisted living facility was not going to let her see a doctor.  She claimed to be very sick.  New Year’s Eve Day 1999 my grandmother was rushed to the hospital sometime very early in the morning.  My uncle, my little brother, and myself were sitting in the waiting room eagerly awaiting news.  The Sydney Opera House was playing in the background as New Years 2000 for Australia was ringing in.  They come out and they tell us my grandmother has pneumonia.  She is in the ICU in critical condition.  Eventually time passes in the day and my parents take my brother and I home.  So in the car we had a huge fight that ended in the worst new years of my life.  The next 30 days were the worst 30 days of my life.  I went to the hospital every single day to do my homework and watch my grandmother.  Each day was a challenge mentally and physically as my grandmother berated me in her demented state.  On the 30th day my grandmother ended up in critical condition in the ICU maxed out on painkillers.  At approximately 3 am I hear my parents telling me they don’t want to wake me up and that my grandmother had passed away.  I must have cried more collectively that day than any other day in my life.  Every New Years Even since I have cried thinking about who she was and what she represented.  She was human looking back she wasn’t anything great, but she was one of the positive lights in my life.  Her and my dad and my other grandmother constantly tried to make me feel great when my mother was telling me the opposite.  I’d like to think since 2000 the past 11 years have been the best 11 years of my life.  I got out of a bad situation by using the tools that I had in front of me.  Good grades and getting into a college so I could aspire to be the person that I wanted to be.  I had some great people along the way to help me out. So getting to the point I like to help people further there lives somehow in the best way I can possibly help out.  This New Years was one of the great years that helped me forget the past and focus on the present.  It makes me realize how far I’ve come since high school and even since college.  The one thing I’ve been grappling with over the years is how do you feel good about making money while helping others out.  I’d to think I try really hard to give back to my community.  I could not have done what I did without other people’s help.  I sent out an email prior to even announcing I got the award today.  I can’t say I did everything on my own.  It’s not possible.  I had the help of others every step of the way.  I’m not sure if this makes sense but the award can’t just be mine.  This award is really owned by each and everyone who helped me get here.  From my dad to my grandmother to Rachel Appel to Bob Hunt to Jason Gallicchio to Cathy Dew to Mark Rackley to Johnny Ennion to Lee Brandt to Jeff Julian to John Alexander to Lori Gowin and to many others.  Thank you guys for all the help and support. Technorati Tags: SharePoint Community,MVP Award,Microsoft Community

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• Subterranean IL: Generics and array covariance

  - by Simon Cooper

  Arrays in .NET are curious beasts. They are the only built-in collection types in the CLR, and SZ-arrays (single dimension, zero-indexed) have their own commands and IL syntax. One of their stranger properties is they have a kind of built-in covariance long before generic variance was added in .NET 4. However, this causes a subtle but important problem with generics. First of all, we need to briefly recap on array covariance. SZ-array covariance To demonstrate, I'll tweak the classes I introduced in my previous posts: public class IncrementableClass { public int Value; public virtual void Increment(int incrementBy) { Value += incrementBy; } } public class IncrementableClassx2 : IncrementableClass { public override void Increment(int incrementBy) { base.Increment(incrementBy); base.Increment(incrementBy); } } In the CLR, SZ-arrays of reference types are implicitly convertible to arrays of the element's supertypes, all the way up to object (note that this does not apply to value types). That is, an instance of IncrementableClassx2[] can be used wherever a IncrementableClass[] or object[] is required. When an SZ-array could be used in this fashion, a run-time type check is performed when you try to insert an object into the array to make sure you're not trying to insert an instance of IncrementableClass into an IncrementableClassx2[]. This check means that the following code will compile fine but will fail at run-time: IncrementableClass[] array = new IncrementableClassx2[1]; array[0] = new IncrementableClass(); // throws ArrayTypeMismatchException These checks are enforced by the various stelem* and ldelem* il instructions in such a way as to ensure you can't insert a IncrementableClass into a IncrementableClassx2[]. For the rest of this post, however, I'm going to concentrate on the ldelema instruction. ldelema This instruction pops the array index (int32) and array reference (O) off the stack, and pushes a pointer (&) to the corresponding array element. However, unlike the ldelem instruction, the instruction's type argument must match the run-time array type exactly. This is because, once you've got a managed pointer, you can use that pointer to both load and store values in that array element using the ldind* and stind* (load/store indirect) instructions. As the same pointer can be used for both input and output to the array, the type argument to ldelema must be invariant. At the time, this was a perfectly reasonable restriction, and maintained array type-safety within managed code. However, along came generics, and with it the constrained callvirt instruction. So, what happens when we combine array covariance and constrained callvirt? .method public static void CallIncrementArrayValue() { // IncrementableClassx2[] arr = new IncrementableClassx2[1] ldc.i4.1 newarr IncrementableClassx2 // arr[0] = new IncrementableClassx2(); dup newobj instance void IncrementableClassx2::.ctor() ldc.i4.0 stelem.ref // IncrementArrayValue<IncrementableClass>(arr, 0) // here, we're treating an IncrementableClassx2[] as IncrementableClass[] dup ldc.i4.0 call void IncrementArrayValue<class IncrementableClass>(!!0[],int32) // ... ret } .method public static void IncrementArrayValue<(IncrementableClass) T>( !!T[] arr, int32 index) { // arr[index].Increment(1) ldarg.0 ldarg.1 ldelema !!T ldc.i4.1 constrained. !!T callvirt instance void IIncrementable::Increment(int32) ret } And the result: Unhandled Exception: System.ArrayTypeMismatchException: Attempted to access an element as a type incompatible with the array. at IncrementArrayValue[T](T[] arr, Int32 index) at CallIncrementArrayValue() Hmm. We're instantiating the generic method as IncrementArrayValue<IncrementableClass>, but passing in an IncrementableClassx2[], hence the ldelema instruction is failing as it's expecting an IncrementableClass[]. On features and feature conflicts What we've got here is a conflict between existing behaviour (ldelema ensuring type safety on covariant arrays) and new behaviour (managed pointers to object references used for every constrained callvirt on generic type instances). And, although this is an edge case, there is no general workaround. The generic method could be hidden behind several layers of assemblies, wrappers and interfaces that make it a requirement to use array covariance when calling the generic method. Furthermore, this will only fail at runtime, whereas compile-time safety is what generics were designed for! The solution is the readonly. prefix instruction. This modifies the ldelema instruction to ignore the exact type check for arrays of reference types, and so it lets us take the address of array elements using a covariant type to the actual run-time type of the array: .method public static void IncrementArrayValue<(IncrementableClass) T>( !!T[] arr, int32 index) { // arr[index].Increment(1) ldarg.0 ldarg.1 readonly. ldelema !!T ldc.i4.1 constrained. !!T callvirt instance void IIncrementable::Increment(int32) ret } But what about type safety? In return for ignoring the type check, the resulting controlled mutability pointer can only be used in the following situations: As the object parameter to ldfld, ldflda, stfld, call and constrained callvirt instructions As the pointer parameter to ldobj or ldind* As the source parameter to cpobj In other words, the only operations allowed are those that read from the pointer; stind* and similar that alter the pointer itself are banned. This ensures that the array element we're pointing to won't be changed to anything untoward, and so type safety within the array is maintained. This is a typical example of the maxim that whenever you add a feature to a program, you have to consider how that feature interacts with every single one of the existing features. Although an edge case, the readonly. prefix instruction ensures that generics and array covariance work together and that compile-time type safety is maintained. Tune in next time for a look at the .ctor generic type constraint, and what it means.

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• Yippy &ndash; the F# MVVM Pattern

  - by MarkPearl

  I did a recent post on implementing WPF with F#. Today I would like to expand on this posting to give a simple implementation of the MVVM pattern in F#. A good read about this topic can also be found on Dean Chalk’s blog although my example of the pattern is possibly simpler. With the MVVM pattern one typically has 3 segments, the view, viewmodel and model. With the beauty of WPF binding one is able to link the state based viewmodel to the view. In my implementation I have kept the same principles. I have a view (MainView.xaml), and and a ViewModel (MainViewModel.fs).     What I would really like to illustrate in this posting is the binding between the View and the ViewModel so I am going to jump to that… In Program.fs I have the following code… module Program open System open System.Windows open System.Windows.Controls open System.Windows.Markup open myViewModels // Create the View and bind it to the View Model let myView = Application.LoadComponent(new System.Uri("/FSharpWPF;component/MainView.xaml", System.UriKind.Relative)) :?> Window myView.DataContext <- new MainViewModel() :> obj // Application Entry point [<STAThread>] [<EntryPoint>] let main(_) = (new Application()).Run(myView) You can see that I have simply created the view (myView) and then created an instance of my viewmodel (MainViewModel) and then bound it to the data context with the code… myView.DataContext <- new MainViewModel() :> obj If I have a look at my viewmodel (MainViewModel) it looks like this… module myViewModels open System open System.Windows open System.Windows.Input open System.ComponentModel open ViewModelBase type MainViewModel() = // private variables let mutable _title = "Bound Data to Textbox" // public properties member x.Title with get() = _title and set(v) = _title <- v // public commands member x.MyCommand = new FuncCommand ( (fun d -> true), (fun e -> x.ShowMessage) ) // public methods member public x.ShowMessage = let msg = MessageBox.Show(x.Title) () I have exposed a few things, namely a property called Title that is mutable, a command and a method called ShowMessage that simply pops up a message box when called. If I then look at my view which I have created in xaml (MainView.xaml) it looks as follows… <Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="F# WPF MVVM" Height="350" Width="525"> <Grid> <Grid.RowDefinitions> <RowDefinition Height="Auto"/> <RowDefinition Height="Auto"/> <RowDefinition Height="*"/> </Grid.RowDefinitions> <TextBox Text="{Binding Path=Title, Mode=TwoWay}" Grid.Row="0"/> <Button Command="{Binding MyCommand}" Grid.Row="1"> <TextBlock Text="Click Me"/> </Button> </Grid> </Window>   It is also very simple. It has a button that’s command is bound to the MyCommand and a textbox that has its text bound to the Title property. One other module that I have created is my ViewModelBase. Right now it is used to store my commanding function but I would look to expand on it at a later stage to implement other commonly used functions… module ViewModelBase open System open System.Windows open System.Windows.Input open System.ComponentModel type FuncCommand (canExec:(obj -> bool),doExec:(obj -> unit)) = let cecEvent = new DelegateEvent<EventHandler>() interface ICommand with [<CLIEvent>] member x.CanExecuteChanged = cecEvent.Publish member x.CanExecute arg = canExec(arg) member x.Execute arg = doExec(arg) Put this all together and you have a basic project that implements the MVVM pattern in F#. For me this is quite exciting as it turned out to be a lot simpler to do than I originally thought possible. Also because I have my view in XAML I can use the XAML designer to design forms in F# which I believe is a much cleaner way to go rather than implementing it all in code. Finally if I look at my viewmodel code, it is actually quite clean and compact…

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• Common reasons for the &lsquo;Sys is undefined&rsquo; error in ASP.NET Ajax applications

    In this blog I will try to summarize the most common reasons for getting the famous 'Sys is undefined' error when running an Ajax enabled web site or application (there are almost one milion results on Google for that phrase). Where does it come from? In every Ajax web pages source you will see a code like this: <script type="text/javascript"> //<![CDATA[ Sys.WebForms.PageRequestManager._initialize('ScriptManager1', document.getElementById('form1')); Sys.WebForms.PageRequestManager.getInstance()._updateControls([], [], [], 90); //]]> </script>   This is the initialization script of the ScriptManager. So, if for some reason the Sys namespace is not available when the code executes you get the Sys is undefined error. Here are the most common reasons and solutions for that problem:   1. The error occurs when you have added a control from RadControls for ASP.NET AJAX, but your application is not configured to use ASP.NET AJAX. For example, in VS 2005 you created a new Blank Site instead of a new Ajax-Enabled Web Site and the Sys is undefined message pops up. To fix it you need to follow the steps described at Configuring ASP.NET Ajax article (check the topic called Adding ASP.NET AJAX Configuration Elements to an Existing Web Site) or simply create the Ajax-Enabled Web Site. You can also check my other blog post on the matter: Visual Studio 2008: Where is the new ASP.NET Ajax-Enabled Web Site template?   2. Authentication - as the website denies access to all pages to unauthorized users, access to the Telerik.Web.UI.WebResource.axd handler is unauthorized (this is the default handler of RadScriptManager). This causes the handler to serve the content of the login page instead of the combined scripts, hence the error. To solve it - add a <location> section to the application configuration file to allow access to Telerik.Web.UI.WebResource.axd to all users, like: <configuration> ... <location path="Telerik.Web.UI.WebResource.axd"> <system.web> <authorization> <allow users="*"/> </authorization> </system.web> </location> ... </configuration>   Note that the access to the standard ScriptResource.axd and WebResource.axd is automatically allowed for all users (authenticated and unauthenticated), so if you use the ScriptManager instead of RadScriptManager - you will not face this problem. The authentication problem does not manifest when you disable script combining or use the CDN. Adding the above configuration section will make it work with RadScriptManagers combined script.   3. The IE6 browser fails to load the compressed script. The problem does not appear in any other browser. There is a well known bug in the older versions of IE6 which lose the first 2,048 bytes of data that are sent back from a Web server that uses HTTP compression. Latest versions of RadScriptManager does not compress the output at all if the client is IE6, but in the previous versions you need to manually disable the output compression to prevent the error. So, if you get the Sys is undefined error in IE6 - update to the latest version of RadControls or simply disable the output compression.   4. Requests to the *.axd files returns Error Code 404 - Not Found. This could  be fixed easily: Check in the IIS management console that the .axd extension (the default HTTP handler extension) is allowed:     Also check if the Verify if file exists checkbox is unchecked (click on the Edit button appearing in the previous screenshot to check). More information can be found in our troubleshooting article and from the ASP.NET QA team blog post   5. The virtual directory in IIS is not marked as Web Application. Converting it to Web Application should fix the problem.   6. Check for the <xhtmlConformance mode="Legacy"/> option in your web.config and remove it. It would be rather rare to become a victim of this exact case, but still have it in mind. Scott Guthrie describes it in more details   In the above points I mentioned several times the terms web resources, javascript output, compressed script. If you want to find out more about these please see the Web Resources Demystified series of my friend and colleague Atanas Korchev   I hope that one of the above solutions will help you get rid of the Sys is undefined error.   Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Viewing the NetBeans Central Registry (Part 2)

  - by Geertjan

  Jens Hofschröer, who has one of the very best NetBeans Platform blogs (if you more or less understand German), and who wrote, sometime ago, the initial version of the Import Statement Organizer, as well as being the main developer of a great gear design & manufacturing tool on the NetBeans Platform in Aachen, commented on my recent blog entry "Viewing the NetBeans Central Registry", where the root Node of the Central Registry is shown in a BeanTreeView, with the words: "I wrapped that Node in a FilterNode to provide the 'position' attribute and the 'file extension'. All Children are wrapped too. Then I used an OutlineView to show these two properties. Great tool to find wrong layer entries." I asked him for the code he describes above and he sent it to me. He discussed it here in his blog, while all the code involved can be read below. The result is as follows, where you can see that the OutlineView shows information that my simple implementation (via a BeanTreeView) kept hidden: And so here is the definition of the Node. class LayerPropertiesNode extends FilterNode { public LayerPropertiesNode(Node node) { super(node, isFolder(node) ? Children.create(new LayerPropertiesFactory(node), true) : Children.LEAF); } private static boolean isFolder(Node node) { return null != node.getLookup().lookup(DataFolder.class); } @Override public String getDisplayName() { return getLookup().lookup(FileObject.class).getName(); } @Override public Image getIcon(int type) { FileObject fo = getLookup().lookup(FileObject.class); try { DataObject data = DataObject.find(fo); return data.getNodeDelegate().getIcon(type); } catch (DataObjectNotFoundException ex) { Exceptions.printStackTrace(ex); } return super.getIcon(type); } @Override public Image getOpenedIcon(int type) { return getIcon(type); } @Override public PropertySet[] getPropertySets() { Set set = Sheet.createPropertiesSet(); set.put(new PropertySupport.ReadOnly<Integer>( "position", Integer.class, "Position", null) { @Override public Integer getValue() throws IllegalAccessException, InvocationTargetException { FileObject fileEntry = getLookup().lookup(FileObject.class); Integer posValue = (Integer) fileEntry.getAttribute("position"); return posValue != null ? posValue : Integer.valueOf(0); } }); set.put(new PropertySupport.ReadOnly<String>( "ext", String.class, "Extension", null) { @Override public String getValue() throws IllegalAccessException, InvocationTargetException { FileObject fileEntry = getLookup().lookup(FileObject.class); return fileEntry.getExt(); } }); PropertySet[] original = super.getPropertySets(); PropertySet[] withLayer = new PropertySet[original.length + 1]; System.arraycopy(original, 0, withLayer, 0, original.length); withLayer[withLayer.length - 1] = set; return withLayer; } private static class LayerPropertiesFactory extends ChildFactory<FileObject> { private final Node context; public LayerPropertiesFactory(Node context) { this.context = context; } @Override protected boolean createKeys(List<FileObject> list) { FileObject folder = context.getLookup().lookup(FileObject.class); FileObject[] children = folder.getChildren(); List<FileObject> ordered = FileUtil.getOrder(Arrays.asList(children), false); list.addAll(ordered); return true; } @Override protected Node createNodeForKey(FileObject key) { AbstractNode node = new AbstractNode(org.openide.nodes.Children.LEAF, key.isFolder() ? Lookups.fixed(key, DataFolder.findFolder(key)) : Lookups.singleton(key)); return new LayerPropertiesNode(node); } } } Then here is the definition of the Action, which pops up a JPanel, displaying an OutlineView: @ActionID(category = "Tools", id = "de.nigjo.nb.layerview.LayerViewAction") @ActionRegistration(displayName = "#CTL_LayerViewAction") @ActionReferences({ @ActionReference(path = "Menu/Tools", position = 1450, separatorBefore = 1425) }) @Messages("CTL_LayerViewAction=Display XML Layer") public final class LayerViewAction implements ActionListener { @Override public void actionPerformed(ActionEvent e) { try { Node node = DataObject.find(FileUtil.getConfigRoot()).getNodeDelegate(); node = new LayerPropertiesNode(node); node = new FilterNode(node) { @Override public Component getCustomizer() { LayerView view = new LayerView(); view.getExplorerManager().setRootContext(this); return view; } @Override public boolean hasCustomizer() { return true; } }; NodeOperation.getDefault().customize(node); } catch (DataObjectNotFoundException ex) { Exceptions.printStackTrace(ex); } } private static class LayerView extends JPanel implements ExplorerManager.Provider { private final ExplorerManager em; public LayerView() { super(new BorderLayout()); em = new ExplorerManager(); OutlineView view = new OutlineView("entry"); view.addPropertyColumn("position", "Position"); view.addPropertyColumn("ext", "Extension"); add(view); } @Override public ExplorerManager getExplorerManager() { return em; } } }

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• Exception seem in an eclipse GMF application when file not present in workspace

  - by rush00121

  I am developing a GMF application . In this situation , I start my workspace and load a file in the workspace . Then I close the workspace and then delete the file from the workspace . After that, I try to restart my application and restore the workspace . Of course , now since the file does not exist , there are going to be exceptions . I tried a lot to handle these exceptions but if I try to get rid of one exception , then another pops up . Does anyone know what methods do I have to override in order to handle this situation correctly . I am attaching the stacktrace that I get in this exception for a better picture . org.eclipse.core.runtime.CoreException: ERROR at org.eclipse.gmf.runtime.diagram.ui.resources.edito r.parts.DiagramDocumentEditor.createPartControl(Di agramDocumentEditor.java:1509) at com.fnfr.itest.topology.tbml.diagram.custom.part.S ingleFileTbmlDiagramEditor.createPartControl(Singl eFileTbmlDiagramEditor.java:120) at org.eclipse.ui.internal.EditorReference.createPart Helper(EditorReference.java:662) at org.eclipse.ui.internal.EditorReference.createPart (EditorReference.java:462) at org.eclipse.ui.internal.WorkbenchPartReference.get Part(WorkbenchPartReference.java:595) at org.eclipse.ui.internal.EditorAreaHelper.setVisibl eEditor(EditorAreaHelper.java:271) at org.eclipse.ui.internal.EditorManager.setVisibleEd itor(EditorManager.java:1417) at org.eclipse.ui.internal.EditorManager$5.runWithExc eption(EditorManager.java:942) at org.eclipse.ui.internal.StartupThreading$StartupRu nnable.run(StartupThreading.java:31) at org.eclipse.swt.widgets.RunnableLock.run(RunnableL ock.java:35) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessa ges(Synchronizer.java:134) at org.eclipse.swt.widgets.Display.runAsyncMessages(D isplay.java:3855) at org.eclipse.swt.widgets.Display.readAndDispatch(Di splay.java:3476) at org.eclipse.ui.application.WorkbenchAdvisor.openWi ndows(WorkbenchAdvisor.java:803) at org.eclipse.ui.internal.Workbench$28.runWithExcept ion(Workbench.java:1384) at org.eclipse.ui.internal.StartupThreading$StartupRu nnable.run(StartupThreading.java:31) at org.eclipse.swt.widgets.RunnableLock.run(RunnableL ock.java:35) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessa ges(Synchronizer.java:134) at org.eclipse.swt.widgets.Display.runAsyncMessages(D isplay.java:3855) at org.eclipse.swt.widgets.Display.readAndDispatch(Di splay.java:3476) at org.eclipse.ui.internal.Workbench.runUI(Workbench. java:2316) at org.eclipse.ui.internal.Workbench.access$4(Workben ch.java:2221) at org.eclipse.ui.internal.Workbench$5.run(Workbench. java:500) at org.eclipse.core.databinding.observable.Realm.runW ithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWork bench(Workbench.java:493) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(Pl atformUI.java:149) at com.fnfr.svt.rcp.Application.runWorkbench(Applicat ion.java:205) at com.fnfr.svt.rcp.Application.start(Application.jav a:190) at org.eclipse.equinox.internal.app.EclipseAppHandle. run(EclipseAppHandle.java:194) at org.eclipse.core.runtime.internal.adaptor.EclipseA ppLauncher.runApplication(EclipseAppLauncher.java: 110) at org.eclipse.core.runtime.internal.adaptor.EclipseA ppLauncher.start(EclipseAppLauncher.java:79) at org.eclipse.core.runtime.adaptor.EclipseStarter.ru n(EclipseStarter.java:368) at org.eclipse.core.runtime.adaptor.EclipseStarter.ru n(EclipseStarter.java:179) at sun.reflect.NativeMethodAccessorImpl.invoke0(Nativ e Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknow n Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Un known Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.eclipse.equinox.launcher.Main.invokeFramework( Main.java:559) at org.eclipse.equinox.launcher.Main.basicRun(Main.ja va:514) at org.eclipse.equinox.launcher.Main.run(Main.java:13 11) Add to rshah's Reputation

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• facebook connect for android returns a blank login screen?

  - by jonney

  Hi, i am trying to use the old facebook connect authentication to authenticate my android client to get the necessary session id's and other credentials thats needed to start using the web service of facebook. the issue i am having is that when my android application launces and tries to load the login page for facebook, that very same login page is blank and it only displays the the facebook logo as the title of the screen. No login fields or buttons are visible leaving me nowhere to login and authenticate a user. i have tried two API's one is facebook connect api for android http://code.google.com/p/fbconnect-android/ and the other one is the official android facebook sdk that is recommended to be used instead of the previous one i have just mentioned https://github.com/facebook/facebook-android-sdk/ . please see the image below of how it looks like on my app. Here is code that uses the latest android sdk facebook: /** * Authenticate facebook network */ private void authenticateFacebook() { // TODO: move this away from this activty class into some kind of // helper/wrapper class Log.d(TAG, "Clicked on the facebook"); Facebook facebook = new Facebook(OAUTH_KEY_FACEBOOK_API); facebook.authorize(this, new AuthorizeListener()); } class AuthorizeListener implements DialogListener{ @Override public void onComplete(Bundle values) { // TODO Auto-generated method stub Log.d(TAG, "finished authorizing facebook user"); } @Override public void onFacebookError(FacebookError e) { // TODO Auto-generated method stub } @Override public void onError(DialogError e) { // TODO Auto-generated method stub } @Override public void onCancel() { // TODO Auto-generated method stub } } And a simple example of how to use it: http://developers.facebook.com/docs/guides/mobile/ My code is more or less identical to the above example. edit: i did not catch what logcat was inputing in my first attempted at my code above but their was no exceptions or warnings thrown at the time. just a blank page. i then tried it again and diddnt touch my code and what happens now is that a loading dialogue view pops up and stays their for a few minutes until the facebook windows disapears and the logcat outputs the error below: 11-18 17:26:19.913: DEBUG/Facebook-WebView(783): Webview loading URL: https://www.facebook.com/dialog/oauth?type=user_agent&redirect_uri=fbconnect%3A%2F%2Fsuccess&display=touch&client_id=e??????????????????? 11-18 17:27:01.756: DEBUG/Facebook-authorize(783): Login failed: com.kc.unity.agent.util.oauth.facebook.DialogError: The connection to the server was unsuccessful. 11-18 17:27:01.783: DEBUG/Facebook-WebView(783): Webview loading URL: https://www.facebook.com/dialog/oauth?type=user_agent&redirect_uri=fbconnect%3A%2F%2Fsuccess&display=touch&client_id=??????????????? please note that the client id i have amended for obvious reasons but the rest of the logcat is untouched

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• Get specifc value from JSon string using JSon.Net

  - by dean nolan

  I am trying to get a value from a JSon formatted string. It was to get album info from a website called Freebase. My result is like this: { "a0": { "code": "/api/status/error", "messages": [ { "code": "/api/status/error/mql/result", "info": { "count": 20, "result": [ { "album": [ { "name": "Definitely Maybe", "release_date": "1994-08-30" } ], "artist": "Oasis", "name": "Live Forever", "type": "/music/track" }, { "album": [ { "name": "Most Wanted Rock 1", "release_date": null } ], "artist": "Oasis", "name": "Live Forever", "type": "/music/track" }, { "album": [ { "name": "Alternative 90s", "release_date": null } ], "artist": "Oasis", "name": "Live Forever", "type": "/music/track" }, { "album": [ { "name": "Live Forever: Best of Britpop", "release_date": "2003-03-03" } ], "artist": "Oasis", "name": "Live Forever", "type": "/music/track" }, { "album": [ { "name": "The Best... In the World... Ever! Volume 5", "release_date": "1997-03-31" } ], "artist": "Oasis", "name": "Live Forever", "type": "/music/track" }, { "album": [ { "name": "Live 4 Ever", "release_date": "1998-06-29" } ], "artist": "Oasis", "name": "Live Forever", "type": "/music/track" }, { "album": [ { "name": "De Afrekening, Volume 8", "release_date": "1994" } ], "artist": "Oasis", "name": "Live Forever", "type": "/music/track" }, { "album": [ { "name": "Now That's What I Call Music! 33", "release_date": null } ], "artist": "Oasis", "name": "Live Forever", "type": "/music/track" }, { "album": [ { "name": "Q: Anthems", "release_date": null } ], "artist": "Oasis", "name": "Live Forever", "type": "/music/track" }, { "album": [ { "name": "The Best Anthems... Ever! Volume 2", "release_date": null } ], "artist": "Oasis", "name": "Live Forever", "type": "/music/track" }, { "album": [ { "name": "1995 Mercury Music Prize: Ten Albums of the Year", "release_date": null } ], "artist": "Oasis", "name": "Live Forever", "type": "/music/track" }, { "album": [ { "name": "Now That's What I Call Music! 1994", "release_date": null } ], "artist": "Oasis", "name": "Live Forever", "type": "/music/track" }, { "album": [ { "name": "Indie Top 20, Volume 21", "release_date": "1995" } ], "artist": "Oasis", "name": "Live Forever", "type": "/music/track" }, { "album": [ { "name": "Dad Rocks!", "release_date": "2006-06-05" } ], "artist": "Oasis", "name": "Live Forever", "type": "/music/track" }, { "album": [ { "name": "Untitled", "release_date": null } ], "artist": "Oasis", "name": "Live Forever", "type": "/music/track" }, { "album": [ { "name": "The Greatest Hits of 1994", "release_date": "1994-10" } ], "artist": "Oasis", "name": "Live Forever", "type": "/music/track" }, { "album": [ { "name": "Top of the Pops 2", "release_date": "2000-03-27" } ], "artist": "Oasis", "name": "Live Forever", "type": "/music/track" }, { "album": [ { "name": "Q: Anthems (disc 1)", "release_date": null } ], "artist": "Oasis", "name": "Live Forever", "type": "/music/track" }, { "album": [ { "name": "Jamie Oliver's Cookin'", "release_date": "2001" } ], "artist": "Oasis", "name": "Live Forever", "type": "/music/track" }, { "album": [ { "name": "Killer Buzz", "release_date": "2001" } ], "artist": "Oasis", "name": "Live Forever", "type": "/music/track" } ] }, "message": "Unique query may have at most one result. Got 20", "path": "", "query": { "album": [ { "name": null, "release_date": null, "sort": "release_date" } ], "artist": "Oasis", "error_inside": ".", "name": "Live Forever", "type": "/music/track" } } ] }, "code": "/api/status/ok", "status": "200 OK", "transaction_id": "cache;cache04.p01.sjc1:8101;2010-03-30T18:04:20Z;0035" } I am looking to get the first album title, Definitely Maybe, from this list. I have tried parsing the string like this: JObject o = JObject.Parse(jsonString); string album = (string)o[""]; But no matter what I have tried I don't know what to put in those quotes. How would I get this specific value or be able to search for it? Thanks

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• Error during maven/ant build: "[java] Timestamp response not valid"

  - by fei

  My maven build started failing randomly, and it got the following error which I cannot make sense of, and googling it doesn't give me anything useful: [echo] Creating a full package... [java] Timestamp response not valid [INFO] ------------------------------------------------------------------------ [ERROR] BUILD ERROR [INFO] ------------------------------------------------------------------------ [INFO] Failed to execute: Executing Ant script: /airtest.build.xml [package-admin-air]: Failed to execute. Java returned: 10 [exec] [DEBUG] Trace [exec] org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute: Executing Ant script: /airtest.build.xml [package-admin-air]: Failed to execute. [exec] at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:719) [exec] at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:556) [exec] at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:535) [exec] at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:387) [exec] at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:348) [exec] at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:180) [exec] at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:328) [exec] at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:138) [exec] at org.apache.maven.cli.MavenCli.main(MavenCli.java:362) [exec] at org.apache.maven.cli.compat.CompatibleMain.main(CompatibleMain.java:60) [exec] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [exec] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [exec] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [exec] at java.lang.reflect.Method.invoke(Method.java:597) [exec] at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315) [exec] at org.codehaus.classworlds.Launcher.launch(Launcher.java:255) [exec] at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430) [exec] at org.codehaus.classworlds.Launcher.main(Launcher.java:375) [exec] Caused by: org.apache.maven.plugin.MojoExecutionException: Failed to execute: Executing Ant script: /airtest.build.xml [package-admin-air]: Failed to execute. [exec] at org.apache.maven.script.ant.AntMojoWrapper.execute(AntMojoWrapper.java:56) [exec] at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:490) [exec] at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:694) [exec] ... 17 more [exec] Caused by: org.codehaus.plexus.component.factory.ant.AntComponentExecutionException: Executing Ant script: /airtest.build.xml [package-admin-air]: Failed to execute. [exec] at org.codehaus.plexus.component.factory.ant.AntScriptInvoker.invoke(AntScriptInvoker.java:227) [exec] at org.apache.maven.script.ant.AntMojoWrapper.execute(AntMojoWrapper.java:52) [exec] ... 19 more [exec] Caused by: C:\Users\dev\plexus-ant-component4263631821803364095.build.xml:445: Java returned: 10 [exec] at org.apache.tools.ant.taskdefs.Java.execute(Java.java:87) [exec] at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275) [exec] at org.apache.tools.ant.Task.perform(Task.java:364) [exec] at org.apache.tools.ant.Target.execute(Target.java:341) [exec] at org.apache.tools.ant.Target.performTasks(Target.java:369) [exec] at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1216) [exec] at org.apache.tools.ant.Project.executeTarget(Project.java:1185) [exec] at org.codehaus.plexus.component.factory.ant.AntScriptInvoker.invoke(AntScriptInvoker.java:222) This is a random error that pops up in various point during the build process, and sometimes the build will succeed and then the next one will fail again. This is really weird, does anyone seen this before? I'm using maven 2.2.1 BTW, the error return code 10 in windows mean "Environment is invalid.

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• cucumber, capybara & selenium works randomly

  - by user247479

  Setup with cucumber, capybara and selenium but some scenarios works only randomly. Running ruby 1.8.6 on rvm rails 2.3.8 selenium pops open firefox 3.6 I have tried to add this with no luck: with_scope(selector) do click_button(button) selenium.wait_for_page_to_load end The error output is sometimes: Given I am logged in and have created newsletter and subscribers # features/step_definitions/newsletter_send_steps.rb:108 end of file reached (EOFError) /Users/christianhager/.rvm/rubies/ruby-1.8.6-p399/lib/ruby/1.8/net/protocol.rb:133:in sysread' /Users/christianhager/.rvm/rubies/ruby-1.8.6-p399/lib/ruby/1.8/net/protocol.rb:133:inrbuf_fill' /Users/christianhager/.rvm/rubies/ruby-1.8.6-p399/lib/ruby/1.8/timeout.rb:62:in timeout' /Users/christianhager/.rvm/rubies/ruby-1.8.6-p399/lib/ruby/1.8/timeout.rb:93:intimeout' /Users/christianhager/.rvm/rubies/ruby-1.8.6-p399/lib/ruby/1.8/net/protocol.rb:132:in rbuf_fill' /Users/christianhager/.rvm/rubies/ruby-1.8.6-p399/lib/ruby/1.8/net/protocol.rb:116:inreaduntil' /Users/christianhager/.rvm/rubies/ruby-1.8.6-p399/lib/ruby/1.8/net/protocol.rb:126:in readline' /Users/christianhager/.rvm/rubies/ruby-1.8.6-p399/lib/ruby/1.8/net/http.rb:2020:inread_status_line' /Users/christianhager/.rvm/rubies/ruby-1.8.6-p399/lib/ruby/1.8/net/http.rb:2009:in read_new' /Users/christianhager/.rvm/rubies/ruby-1.8.6-p399/lib/ruby/1.8/net/http.rb:1050:inrequest_without_fakeweb' /Users/christianhager/.rvm/rubies/ruby-1.8.6-p399/lib/ruby/1.8/net/http.rb:1037:in request_without_fakeweb' /Users/christianhager/.rvm/rubies/ruby-1.8.6-p399/lib/ruby/1.8/net/http.rb:543:instart' /Users/christianhager/.rvm/rubies/ruby-1.8.6-p399/lib/ruby/1.8/net/http.rb:1035:in request_without_fakeweb' ./features/step_definitions/web_steps.rb:24:in__instance_exec2' ./features/step_definitions/web_steps.rb:9:in with_scope' ./features/step_definitions/web_steps.rb:9:inwith_scope' ./features/step_definitions/web_steps.rb:23:in /^(?:|I )press "([^\"]*)"(?: within "([^\"]*)")?$/' features/enhanced/newsletter_send1.feature:7:inGiven I am logged in and have created newsletter and subscribers' And othertimes: no button with value or id or text 'create_user_button' found (Capybara::ElementNotFound) ./features/step_definitions/web_steps.rb:24:in __instance_exec2' ./features/step_definitions/web_steps.rb:9:inwith_scope' ./features/step_definitions/web_steps.rb:9:in with_scope' ./features/step_definitions/web_steps.rb:23:in/^(?:|I )press "([^\"])"(?: within "([^\"])")?$/' features/enhanced/newsletter_send1.feature:7:in `Given I am logged in and have created newsletter and subscribers' And sometimes it just works.... This is how my env.rb looks like ENV["RAILS_ENV"] ||= "cucumber" require File.expand_path(File.dirname(__FILE__) + '/../../config/environment') require 'cucumber/formatter/unicode' # Remove this line if you don't want Cucumber Unicode support require 'cucumber/rails/world' require 'cucumber/rails/active_record' require 'cucumber/web/tableish' require 'capybara/rails' require 'capybara/cucumber' require 'capybara/session' require 'cucumber/rails/capybara_javascript_emulation' require "selenium-webdriver" Capybara.default_driver = :selenium Capybara.default_wait_time = 5 Capybara.ignore_hidden_elements = false Capybara.default_selector = :css ActionController::Base.allow_rescue = false require 'database_cleaner' DatabaseCleaner.strategy = :truncation Before do Capybara.reset_sessions! DatabaseCleaner.clean end Cucumber::Rails::World.use_transactional_fixtures = false Cucumber-steps: Given I am on the signup page And I fill in "user_login" with "[email protected]" within "body" And I fill in "user_password" with "secret" within "body" And I fill in "user_password_confirmation" with "secret" within "body" And I check "terms_of_use" within "body" And I press "create_user_button" within "body" Any insight would be great :)

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• How to construct a flowchart/storyboard in a Func Spec

  - by PeterQ

  Hey I'm a bit embarrassed to write a post on this topic, but I would appreciate the help. At my school, the CS kids (myself included) have created a nice, little program that is built for incoming Chem/Bio students. It consists of several modules that reviews topics they should have a firm grasp on before they start their classes. It's a nice tool since it cuts down on reviewing the material in class but also allows the students to do a quick diagnostic to fix any problems. Now, I'm in charge of constructing a simple interface that reports on the progress of the group and individual students. The interface is pretty simple. It's just a window that pops up, and it has three tabs: the first tab is a "cumulative" report of all of students. The secnod tab has a drop down box that lists the students and once a student is selected, a report for him/her comes up. And the third tab is simply a description of all of the terms used in the 1st and 2nd tabs. Now, I'm trying to be a good CS student and write a func. spec for my interface. My problem comes with the fact that I'd like to insert a little flowchart using Visio. Problem is, and I'm quite embarrassed to admit this, I don't know how to construct the flowchart/storyboard. For instance, I know I start with a "Start/Click Icon" in a rectangle. Then where do I go? Do I draw three arrrows (one going to each tab) and then describing what goes on? In tab one, the only thing that happens is that the user will select a "sort" method in the drop down box. This will sort the list. The End. Similarly, if the user selects the second tab, then he will go to a drop down box with the student names. Selecting a name will bring up student info. And the third tab is just a list of unfamiliar terms coming from the first or second tab. I wanted to storyboard/flowchart what I'm doing, but I'm unclear how to go about it. Any help would be appreciated! (Just to clarify, I'm not having trouble with using Visio, but I don't know how one goes about construct a storyboard or determining the procedure for constructing one)

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• Safely remove window subclassing?

  - by Vegard Larsen

  I am trying to subclass the currently focused window on a Windows system using a global CBT hook. This is related to what happens in this question, but the bug is different. What happens when this subclassing is in effect, is that Opera's (version 10.50) main window is prevented from displaying. Opera has a "splash screen" where you are required to click "Start" for the main window to show that appears after Opera has not shut down properly. Whenever this window pops up, Opera's main window won't show. If Opera was shut down properly, and this splash screen does not show, the main window displays as it should. HHOOK hHook; HWND hWndSubclass = 0; void SubclassWindow(HWND hWnd) { Unsubclass(); FARPROC lpfnOldWndProc = (FARPROC)SetWindowLongPtr(hWnd, GWLP_WNDPROC, (LPARAM)SubClassFunc); SetProp(hWnd, L"PROP_OLDWNDPROC", lpfnOldWndProc); hWndSubclass = hWnd; } void Unsubclass() { if (hWndSubclass != 0 && IsWindow(hWndSubclass)) { FARPROC lpfnOldWndProc = (FARPROC)GetProp(hWndSubclass, L"PROP_OLDWNDPROC"); RemoveProp(hWndSubclass, L"PROP_OLDWNDPROC"); SetWindowLongPtr(hWndSubclass, GWLP_WNDPROC, (LPARAM)lpfnOldWndProc); hWndSubclass = 0; } } static LRESULT CALLBACK SubClassFunc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) { if (message == WM_MOVING) { // do something irrelevant } else if (message == WM_DESTROY) { Unsubclass(); } FARPROC lpfnOldWndProc = (FARPROC)GetProp(hWndSubclass, L"PROP_OLDWNDPROC"); return CallWindowProc((WNDPROC)lpfnOldWndProc, hWndSubclass, message, wParam, lParam); } static LRESULT CALLBACK CBTProc(int nCode, WPARAM wParam, LPARAM lParam) { if (nCode == HCBT_SETFOCUS && hWndServer != NULL) { SubclassWindow((HWND)wParam); } if (nCode < 0) { return CallNextHookEx(hHook, nCode, wParam, lParam); } return 0; } BOOL APIENTRY DllMain( HINSTANCE hInstance, DWORD Reason, LPVOID Reserved ) { switch(Reason) { case DLL_PROCESS_ATTACH: hInst = hInstance; return TRUE; case DLL_PROCESS_DETACH: Unsubclass(); return TRUE; } return TRUE; } My suspicion is that Opera's main window is somehow already subclassed. I imagine the following is happening: The window is created with it's own basic WndProc, and is given focus My application subclasses the window, storing the original WndProc Opera subclasses its own window When the window loses focus, I restore the original WndProc, thus ignoring the second WndProc Can this really be the case? Are there any other explanations?

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• Enable real fixed positioning on Samsung Android browsers

  - by Mr. Shiny and New ??

  The Android browser, since 2.2, supports fixed positioning, at least under certain circumstances such as when scaling is turned off. I have a simple HTML file with no JS, but the fixed positioning on three Samsung phones I've tried is simply wrong. Instead of true fixed positioning, the header scrolls out of view then pops back into place after the scrolling is done. This doesn't happen on the Android SDK emulator for any configuration I've tested (2.2, 2.3, 2.3 x86, 4.0.4). It also doesn't happen when using the WebView in an app on the Samsung phones: in those cases the positioning works as expected. Is there a way to make the Samsung Android "stock" browser use real fixed positioning? I've tested: 1. Samsung Galaxy 551, Android 2.2 2. Samsung Galaxy S, Android 2.3 3. Samsung Galaxy S II, Android 2.3 Sample code: <html> <head> <meta name="viewport" content="initial-scale=1.0,maximum-scale=1.0,user-scalable=no,width=device-width,height=device-height"> <style> h1 { position: fixed; top: 0; left: 0; height: 32px; background-color: #CDCDCD; color: black; font-size: 32px; line-height: 32px; padding: 2px; width: 100%; margin: 0;} p { margin-top: 36px; } </style> </head> <body> <h1>Header</h1> <p>Long text goes here</p> </body> </html> The expected behaviour is that the grey header fills the top of the screen and stays put no matter how much you scroll. On Samsung Android browsers it seems to scroll out of view then pop back into place once the scrolling is done, as if the fixed-positioning is being simulated using Javascript, which it isn't. Edit Judging by the comments and "answers" it seems that maybe I wasn't clear on what I need. I am looking for a meta tag or css rule/hack or javascript toggle which turns off Samsung's broken fixed-positioning and turns on the Android browser's working fixed-positioning. I am not looking for a Javascript solution that adds broken fixed-positioning to a browser that has no support whatsoever; the Samsung fixed-positioning does that already, it just looks stupid.

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• Problem retrieving HTML5 video duration

  - by drebabels

  UPDATE: Ok so although I haven't solved this problem exactly, but I did figure out a work around that handles my biggest concern... the user experience. First the video doesn't begin loading until after the viewer hits the play button, so I am assuming that the duration information wasn't available to be pulled (I don't know how to fix this particular issue... although I assume that it would involve just loading the video metadata separately from the video, but I don't even know if that is possible). So to get around the fact that there is no duration data, I decided to hide the duration info (and actually the entire control) completely until you hit play. I know... its cheating. But for now it makes me happy :) That said... if anyone knows how to load the video metadata separately from the video file... please share. I think that should completely solve this problem. I am working on building a HTML5 video player with a custom interface, but I am having some problems getting the video duration information to display. My HTML is real simple (see below) <video id="video" poster="image.jpg" controls> <source src="video_path.mp4" type="video/mp4" /> <source src="video_path.ogv" type="video/ogg" /> </video> <ul class="controls"> <li class="time"><p><span id="timer">0</span> of <span id="duration">0</span></p></li> </ul> And the javascript I am using to get and insert the duration is var duration = $('#duration').get(0); var vid_duration = Math.round(video.duration); duration.firstChild.nodeValue = vid_duration; The problem is nothing happens. I know the video file has the duration data because if I just use the default controls, it displays fine. But the real strange thing is if I put alert(duration) in my code like so alert(duration); var vid_duration = Math.round(video.duration); duration.firstChild.nodeValue = vid_duration; then is works fine (minus the annoying alert that pops up). Any ideas what is happening here or how I can fix it?

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• str is not callable error in python .

  - by mekasperasky

  import sys import md5 from TOSSIM import * from RadioCountMsg import * t = Tossim([]) #The Tossim object is defined here m = t.mac()#The mac layer is defined here , in which the communication takes place r = t.radio()#The radio communication link object is defined here , as the communication needs Rf frequency to transfer t.addChannel("RadioCountToLedsC", sys.stdout)# The various channels through which communication will take place t.addChannel("LedsC", sys.stdout) #The no of nodes that would be required in the simulation has to be entered here print("enter the no of nodes you want ") n=input() for i in range(0, n): m = t.getNode(i) m.bootAtTime((31 + t.ticksPerSecond() / 10) * i + 1) #The booting time is defined so that the time at which the node would be booted is given f = open("topo.txt", "r") #The topography is defined in topo.txt so that the RF frequencies of the transmission between nodes are are set lines = f.readlines() for line in lines: s = line.split() if (len(s) > 0): if (s[0] == "gain"): r.add(int(s[1]), int(s[2]), float(s[3])) #The topogrography is added to the radio object noise = open("meyer-heavy.txt", "r") #The noise model is defined for the nodes lines = noise.readlines() for line in lines: str = line.strip() if (str != ""): val = int(str) for i in range(0, 4): t.getNode(i).addNoiseTraceReading(val) for i in range (0, n): t.getNode(i).createNoiseModel() #The noise model is created for each node for i in range(0,n): t.runNextEvent() fk=open("key.txt","w") for i in range(0,n): if i ==0 : key=raw_input() fk.write(key) ak=key key=md5.new() key.update(str(ak)) ak=key.digest() fk.write(ak) fk.close() fk=open("key.txt","w") plaint=open("pt.txt") for i in range(0,n): msg = RadioCountMsg() msg.set_counter(7) pkt = t.newPacket()#A packet is defined according to a certain format print("enter message to be transported") ms=raw_input()#The message to be transported is taken as input #The RC5 encryption has to be done here plaint.write(ms) pkt.setData(msg.data) pkt.setType(msg.get_amType()) pkt.setDestination(i+1)#The destination to which the packet will be sent is set print "Delivering " + " to" ,i+1 pkt.deliver(i+1, t.time() + 3) fk.close() print "the key to be displayed" ki=raw_input() fk=open("key.txt") for i in range(0,n): if i==ki: ms=fk.readline() for i in range(0,n): msg=RadioCountMsg() msg.set_counter(7) pkt=t.newPacket() msg.data=ms pkt.setData(msg.data) pkt.setType(msg.get_amType()) pkt.setDestination(i+1) pkt.deliver(i+1,t.time()+3) #The key has to be broadcasted here so that the decryption can take place for i in range(0, n): t.runNextEvent(); this code gives me error here key.update(str(ak)) . when i run a similar code on the python terminal there is no such error but this code pops up an error . why so?

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• Andorid: the keyboard appeares when the app is started

  - by Briesanji

  I have coded an Android application composed by a LinearLayout(with an editbox and a button) and a ScrollView(with a LinearLayout that contains a TextView). When the app is started the keyboard pops up immediatly and I don't want this to happen. Have you got some advice?? THIS IS MY LAYOUT : <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context="com.example.b2875.Messaggi$PlaceholderFragment" > <LinearLayout android:layout_width="fill_parent" android:layout_height="70dp" android:layout_marginTop="650dp" > <EditText android:id="@+id/ScriviMessaggio" android:layout_width="332dp" android:layout_height="71dp" android:ems="10" android:hint="@string/scriviMessaggio" /> <Button android:id="@+id/invia" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/invia" /> </LinearLayout> <ScrollView android:id="@+id/scrollView1" android:scrollbarAlwaysDrawVerticalTrack="true" android:layout_width="fill_parent" android:layout_height="600dp" android:focusable="true" android:focusableInTouchMode="true" > <LinearLayout android:id="@+id/linearVertical" android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="vertical" > <TextView android:id="@+id/AreaMessaggi" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/messaggi" /> </LinearLayout> </ScrollView> </RelativeLayout> MY MANIFEST IS THIS: <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.b2875" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="19" /> <uses-permission android:name="android.permission.INTERNET"/> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/> <application android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" > <activity android:windowSoftInputMode="stateHidden" android:name="com.example.b2875.Messaggi" android:label="@string/app_name" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest>

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• Gap appears between navigation bar and view after rotating & tab switching

  - by Bogatyr

  My iphone application is showing strange behavior when rotating: a gap appears between the navigation title and content view inside a tab bar view (details on how to reproduce are below). I've created a tiny test case that exhibits the same problem: a custom root UIViewController, which creates and displays a UITabBarController programmatically, which has two tabs: 1) plain UIViewController, and 2) UINavigationController created programmatically with a single plain UIViewController content view. The complete code for the application is in the root controller's viewDidLoad (every "*VC" class is a totally vanilla UIViewController subclass with XIB for user interface from XCode, with only the view background color changed to clearly identify each view, nothing else). Here's the viewDidLoad code, and the shouldAutorotateToInterfaceOrientation code, this code is the entire application basically: - (void)viewDidLoad { [super viewDidLoad]; FirstVC *fvc = [[FirstVC alloc] initWithNibName:@"FirstVC" bundle:nil]; NavContentsVC *ncvc = [[NavContentsVC alloc] initWithNibName:@"NavContentsVC" bundle:nil]; UINavigationController *svc = [[UINavigationController alloc] initWithRootViewController:ncvc]; NSMutableArray *localControllersArray = [[NSMutableArray alloc] initWithCapacity:2]; [localControllersArray addObject:fvc]; [localControllersArray addObject:svc]; fvc.title = @"FirstVC-Title"; ncvc.title = @"NavContents-Title"; UITabBarController *tbc = [[UITabBarController alloc] init]; tbc.view.frame = CGRectMake(0, 0, 320, 460); [tbc setViewControllers:localControllersArray]; [self.view addSubview:tbc.view]; [localControllersArray release]; [ncvc release]; [svc release]; [fvc release]; } - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { return YES; } Here's how to reproduce the problem: 1) start application 2) rotate device (happens in simulator, too) to landscape (UITabBar properly rotates) 3) click on tab 2 4) rotate device to portrait -- notice gap of root view controller's background color of about 10 pixels high beneath the Navigation title bar and the Navigation content view. 5) click tab 1 6) click tab 2 And the gap is gone! From my real application, I see that the gap remains during all VC push and pops while the NavigationController tab is active. Switching away to a different tab and back to the Nav tab clears up the gap. What am I doing wrong? I'm running on SDK 3.1.3, this happens both on the simulator and on the device. Except for this particular sequence, everything seems to work fine. Help!

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• ActionListener problem

  - by thegamer

  Hello, i am trying to make an actionListener on a button in another button which has also an actionlistener and i just couldn't figure it out for some way. I am trying to make an action on the 2nd button but i couldn't figure it out.If anyone helps me i'd appreciate! here is the code below: import java.awt.; import java.awt.event.; import javax.swing.; import java.io.; import java.util.*; public class basic implements ActionListener{ public static void main(String[] args) { basic process = new basic (); } public basic(){ JFrame fan = new JFrame("Scheme"); JPanel one = new JPanel(new BorderLayout()); fan.add(one); JPanel uno = new JPanel(); uno.setLayout(new BoxLayout(uno, BoxLayout.Y_AXIS)); JButton addB = new JButton("first choice"); addB.setAlignmentX(Component.CENTER_ALIGNMENT); uno.add(addB); addDButton.setActionCommand("hehe"); addDButton.addActionListener(this); one.add(uno,BorderLayout.CENTER); fan.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); fan.setSize(500,700); fan.setLocationByPlatform(true); fan.setVisible(true); } public void actionPerformed(ActionEvent evt) { JPanel markP = new JPanel(new FlowLayout(FlowLayout.RIGHT,10,20)); JDialog dialog = new JDialog((JFrame)null); dialog.getContentPane().add(markP,BorderLayout.CENTER); if (evt.getActionCommand().equals("hehe")) { JLabel title = new JLabel("Proceed"); title.setFont(new Font("Arial",Font.BOLD,15)); markP.add(title,BorderLayout.NORTH); JButton exit = new JButton("Exit"); markP.add(exit); //here i want to create another actionListener on the exit button only without affecting the other content which is in the button "addB " so that when i click on the addB button the J dialog pops up, and than when i click on exit button the program will return to the menu.I couldn't figure it out. dialog.toFront(); dialog.setModal(true); dialog.pack(); // dialog.setLocationRelativeTo(null); // dialog.setVisible(true); } // here the code goes on but the problem is that of the actionListener which is concerned.

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• How do I prevent programmatically the "Program Compatibility Assistant" in Vista (and Windows 7) fro

  - by Asaf

  I develop a C++ program which might use adobe flash, although it is not essential. I use CoCreateInstance to create the flash object, and if it fails, I know flash is not installed so I don't use it. However, in Vista (and I think Windows 7 as well), when flash is not installed, after leaving the application, the "Program Compatibility Assistant" pops up a message saying that "This program requires a missing Windows component" specifying the flash.ocx. Is there a way to prevent this message from appearing? I don't want to force any user to install flash (especially since it's the IE ActiveX, and FireFox users might not have it installed), and my application can operate well without the flash. Plus this message is really annoying when it appears after every run. I don't mean of course disabling the PCA on the user's machine, but programmatically disable this specific appearance on all machines. Any thoughts? Thanks [EDIT:] I followed Shay's lead (thanks), and did some more digging of my own. I added the following XML to the application's manifest: <trustInfo xmlns="urn:schemas-microsoft-com:asm.v2"> <security> <requestedPrivileges> <requestedExecutionLevel level="asInvoker" uiAccess="false"> </requestedExecutionLevel> </requestedPrivileges> </security> </trustInfo> (see also: msdn.microsoft.com/en-us/library/bb756929.aspx) This solved the problem on Vista 64. To solve the same problem on Windows 7, I added the following: <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1"> <application> <!--The ID below indicates application support for Windows Vista --> <supportedOS Id="{e2011457-1546-43c5-a5fe-008deee3d3f0}"/> <!--The ID below indicates application support for Windows 7 --> <supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}"/> </application> </compatibility> (See also: blogs.msdn.com/yvesdolc/archive/2009/09/22/the-new-compatibility-section-in-the-application-manifest.aspx) Solved Windows 7. But for some reason, it still happens in Vista 32... I also tried editing the manifest of the specific DLL which causes the problem, but it had no effect. Only the executable's manifest itself affected the problem. So... Vista 32?

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• WPF - Random hanging with file browser attached behaviour.

  - by Stimul8d

  Hi, I have an attached behavior defined thusly,.. public static class FileBrowserBehaviour { public static bool GetBrowsesOnClick(DependencyObject obj) { return (bool)obj.GetValue(BrowsesOnClickProperty); } public static void SetBrowsesOnClick(DependencyObject obj, bool value) { obj.SetValue(BrowsesOnClickProperty, value); } // Using a DependencyProperty as the backing store for BrowsesOnClick. This enables animation, styling, binding, etc... public static readonly DependencyProperty BrowsesOnClickProperty = DependencyProperty.RegisterAttached("BrowsesOnClick", typeof(bool), typeof(FileBrowserBehaviour), new FrameworkPropertyMetadata(false, new PropertyChangedCallback(BrowsesOnClickChanged))); public static void BrowsesOnClickChanged(DependencyObject obj, DependencyPropertyChangedEventArgs args) { FrameworkElement fe = obj as FrameworkElement; if ((bool)args.NewValue) { fe.PreviewMouseLeftButtonDown += new MouseButtonEventHandler(OpenFileBrowser); } else { fe.PreviewMouseLeftButtonDown -= new MouseButtonEventHandler(OpenFileBrowser); } } static void OpenFileBrowser(object sender, MouseButtonEventArgs e) { var tb = sender as TextBox; if (tb.Text.Length < 1 || tb.Text=="Click to browse..") { OpenFileDialog ofd = new OpenFileDialog(); ofd.Filter = "Executables | *.exe"; if (ofd.ShowDialog() == true) { Debug.WriteLine("Setting textbox text-" + ofd.FileName); tb.Text = ofd.FileName; Debug.WriteLine("Set textbox text"); } } } } It's a nice simple attached behavior which pops open an OpenFileDialog when you click on a textbox and puts the filename in the box when you're done. It works maybe 40% of the time but the rest of the time the whole app hangs. The call stack at this point looks like this - [Managed to Native Transition] WindowsBase.dll!MS.Win32.UnsafeNativeMethods.GetMessageW(ref System.Windows.Interop.MSG msg, System.Runtime.InteropServices.HandleRef hWnd, int uMsgFilterMin, int uMsgFilterMax) + 0x15 bytes WindowsBase.dll!System.Windows.Threading.Dispatcher.GetMessage(ref System.Windows.Interop.MSG msg, System.IntPtr hwnd, int minMessage, int maxMessage) + 0x48 bytes WindowsBase.dll!System.Windows.Threading.Dispatcher.PushFrameImpl(System.Windows.Threading.DispatcherFrame frame = {System.Windows.Threading.DispatcherFrame}) + 0x8b bytes WindowsBase.dll!System.Windows.Threading.Dispatcher.PushFrame(System.Windows.Threading.DispatcherFrame frame) + 0x49 bytes WindowsBase.dll!System.Windows.Threading.Dispatcher.Run() + 0x4c bytes PresentationFramework.dll!System.Windows.Application.RunDispatcher(object ignore) + 0x1e bytes PresentationFramework.dll!System.Windows.Application.RunInternal(System.Windows.Window window) + 0x6f bytes PresentationFramework.dll!System.Windows.Application.Run(System.Windows.Window window) + 0x26 bytes PresentationFramework.dll!System.Windows.Application.Run() + 0x19 bytes Debugatron.exe!Debugatron.App.Main() + 0x5e bytes C# [Native to Managed Transition] [Managed to Native Transition] mscorlib.dll!System.AppDomain.nExecuteAssembly(System.Reflection.Assembly assembly, string[] args) + 0x19 bytes mscorlib.dll!System.Runtime.Hosting.ManifestRunner.Run(bool checkAptModel) + 0x6e bytes mscorlib.dll!System.Runtime.Hosting.ManifestRunner.ExecuteAsAssembly() + 0x84 bytes mscorlib.dll!System.Runtime.Hosting.ApplicationActivator.CreateInstance(System.ActivationContext activationContext, string[] activationCustomData) + 0x65 bytes mscorlib.dll!System.Runtime.Hosting.ApplicationActivator.CreateInstance(System.ActivationContext activationContext) + 0xa bytes mscorlib.dll!System.Activator.CreateInstance(System.ActivationContext activationContext) + 0x3e bytes Microsoft.VisualStudio.HostingProcess.Utilities.dll!Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssemblyDebugInZone() + 0x23 bytes mscorlib.dll!System.Threading.ThreadHelper.ThreadStart_Context(object state) + 0x66 bytes mscorlib.dll!System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, object state) + 0x6f bytes mscorlib.dll!System.Threading.ThreadHelper.ThreadStart() + 0x44 bytes Now, I've seen this kind of thing before when doing some asynchronous stuff but there's none of that going on at that point. The only thread alive is the UI thread! Also, I always get that last debug statement when it does hang. Can anyone point me in the right direction? This one's driving me crazy!

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• jquery ajax post callback - manipulation stops after the "third" call

  - by shanyu

  EDIT: The problem is not related to Boxy, I've run into the same issue when I've used JQuery 's load method. EDIT 2: When I take out link.remove() from inside the ajax callback and place it before ajax load, the problem is no more. Are there restrictions for manipulating elements inside an ajax callback function. I am using JQuery with Boxy plugin. When the 'Flag' link on the page is clicked, a Boxy modal pops-up and loads a form via ajax. When the user submits the form, the link (<a> tag) is removed and a new one is created from the ajax response. This mechanism works for, well, 3 times! After the 3rd, the callback function just does not remove/replace/append (tested several variations of manipulation) the element. The only hint I have is that after the 3rd call, the parent of the link becomes non-selectable. However I can't make anything of this. Sorry if this is a very trivial issue, I have no experience in client-side programming. The relevant html is below: <div class="flag-link"> <img class="flag-img" style="width: 16px; visibility: hidden;" src="/static/images/flag.png" alt=""/> <a class="unflagged" href="/i/flag/showform/9/1/?next=/users/1/ozgurisil">Flag</a> </div> Here is the relevant js code: $(document).ready(function() { $('div.flag-link a.unflagged').live('click', function(e){ doFlag(e); return false; }); ... }); function doFlag(e) { var link = $(e.target); var url = link.attr('href'); Boxy.load(url, {title:'Inappropriate Content', unloadOnHide:true, cache:false, behaviours: function(r) { $("#flag-form").live("submit", function(){ var post_url = $("#flag-form").attr('action'); boxy = Boxy.get(this); boxy.hideAndUnload(); $.post(post_url, $("#flag-form").serialize(), function(data){ par = link.parent(); par.append(data); alert (par.attr('class')); //BECOMES UNDEFINED AT THE 3RD CALL!! par.children('img.flag-img').css('visibility', 'visible'); link.remove(); }); return false; }); }}); }

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• Mootools Accordion nonfunctional in Opera

  - by nona

  While working as expected in all other browsers, opera refuses to tween the height of content. oddly enough, as i sat annoyed rapidly clicking it over and over again, if it's closed, and you select some text, and keep clicking the same spot long enough, sometimes it pops open. lol. seriously. ahh, it seems to sometimes open the first time clicked after the page is loaded. wth? the javascript: window.addEvent('domready', function(){ var content_height = [];i=0; $$( '.bio_accordion' ).each(function(item){ i++; content_height.push(item.getElement('.moreInfo').offsetHeight); var thisSlider = new Fx.Slide( item.getElement( '.moreInfo' ), { mode: 'horizontal' } ); thisSlider.hide(); item.getElement('.moreInfo').set('tween').tween('height', '0px'); var morph = new Fx.Morph(item.getElement( '.divToggle' )); var selected = 0; item.getElement( '.divToggle' ).addEvents({ 'mouseenter': function(){ if(!selected) this.morph('.div_highlight'); }, 'mouseleave': function(){ if(!selected) { this.morph('.divToggle'); } }, 'click': function(){ if (!selected){ if (this.getElement('.symbol').innerHTML == '+') this.getElement('.symbol').innerHTML = '-'; else this.getElement('.symbol').innerHTML = '+'; item.getElement('.moreInfo').set('tween', { duration: 1500, transition: Fx.Transitions.Bounce.easeOut }).tween('height', content_height[i]); selected = 1; thisSlider.slideIn(); } else{ if (this.getElement('.symbol').innerHTML == '+') this.getElement('.symbol').innerHTML = '-'; else this.getElement('.symbol').innerHTML = '+'; thisSlider.slideOut(); item.getElement('.moreInfo').set('tween', { duration: 1000, transition: Fx.Transitions.Bounce.easeOut }).tween('height', '0px'); selected = 0; } } }); } ); }); the html: <div class="bio_accordion"> <div class="divToggle">test<span class="symbol">-</span></div> <div class="moreInfo" style="margin-left:10px;"> aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa asdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdf aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa asdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdf aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa asdfasdfasdfasdfasdfasdfasdfasdfasdfasdfasdf </div> </div> the css: .bio_accordion { padding:0px; margin:0px; } .divToggle { cursor: pointer; color: #ffffff; background-color:#1089b5; padding: 8px; } .div_highlight { padding-left:30px; padding-right:30px; background-color:#096687; } .moreInfo { padding: 2px; padding-top:15px; padding-bottom:15px; overflow: hidden; } .symbol { float:right; }

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• Display multiple new windows

  - by Ricardo Deano

  Afternoon all. I have the following scenario: I have a search page where by a client searches for a product from a drop down list, upon clicking a button, a gridview is produced display the spec. What I would like is the functionality for the user to make their selection and a new window pops up with the spec. So I have a simple code behind for the search page: protected void Button1_Click(object sender, EventArgs e) { Session["Product"] = DropDownList1.SelectedValue; string strScript = "window.open('GridViewPage.aspx', 'Key', 'height=500,width=800,toolbar=no,menubar=no,scrollbars=yes,resizable=yes,titlebar=no');"; ScriptManager.RegisterStartupScript(this, typeof(string), "", strScript, true); } And a gridviewpage that presents the data based upon the session created in the search page: <asp:GridView ID="GridView2" runat="server" AutoGenerateColumns="False" DataSourceID="LinqDataSource1"> <Columns> <asp:BoundField DataField="Product" HeaderText="MemberID" SortExpression="MemberID" /> <asp:BoundField DataField="Spec" HeaderText="Spec" SortExpression="Spec" /> </Columns> </asp:GridView> <asp:LinqDataSource ID="LinqDataSource1" runat="server" ContextTypeName="GridViewInNewWindow.ProductDataContext" EntityTypeName="" TableName="tblProducts" Where="Product == @Product"> <WhereParameters> <asp:SessionParameter Name="Product" SessionField="Product" Type="String" /> </WhereParameters> </asp:LinqDataSource> Now upon first iteration, this does the job...gridview presented in new window...hurrah! i.e. a user searches for egg, the spec for an egg is presented in a new window. However, what I would like to happen is that the user can make multiple searches so a number of new windows are opened. i.e. a user searches for egg once, the spec is returned in a new window; they then wish to see the spec for a chicken, so they use the search page to find said chicken, click the button and another new window is shown displaying the chicken's specs. Does anyone know how I can achieve this? Apologies if this is simple stuff, I am just finding my feet.

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