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• XCode 3.2 - can't create Objective-C class

  - by Urizen

  My installation of XCode 3.2 has begun to exhibit some strange behaviour. When I try to add a basic Objective-C classs (inheriting from NSObject), in my iPhone project, I get the following popup: "Alert. Couldn't load the next page". The above-mentioned error happens at the point of trying to create the file (i.e. the creation process doesn't get to the stage where you are asked to input the file name). It might also be worth mentioning that where there previously used to be a description for the file (in the file creation window) it now states "No description available". I can create other files (e.g. UIViewController subclass etc.) but not the basic Objective-C class. I have updated the documentation and restarted the machine and xcode several times without success. I would be extremely grateful for any assistance as I am relatively new to the XCode environment.

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• Decimal numbers works in iPhone simulator but NOT on iPhone device

  - by matsoftware

  Hi everybody, I noticed a weird behaviour of iPhone OS when using decimal values. The simulator parse them from strings in a correct way but when I test the app on my iPhone it lose the decimal part. In particular, I store values in a dictionary that I retrieve in this way: Code: NSString *thickStr = [dictionary valueForKey:@"thickness"]; NSNumber *thickNum = [[[self class] numberFormatter] numberFromString:thickStr]; [self setSpessore:thickNum]; where the "numberFormatter" class is defined as below: Code: + (NSNumberFormatter *)numberFormatter { static NSNumberFormatter *_formatter; if (_formatter == nil) { _formatter = [[NSNumberFormatter alloc] init]; [_formatter setNumberStyle:NSNumberFormatterDecimalStyle]; [_formatter setFormatterBehavior:NSNumberFormatterBehavior10_4]; [_formatter setGeneratesDecimalNumbers:TRUE]; } return _formatter; } But it doesn't work! The App on iPhone keeps on convert the string to a simple integer, forgetting the decimal part, while the app on iPhone simulator works fine!

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• Get the full URI from the href property of a link

  - by Savageman

  Hello SO, I would like to have a confirmation on some point. My goal is to always get the same string (which is the URI in my case) while reading the href property from a link. Example: <a href="test.htm" /> with base_url = http://domain.name/ <a href="../test.htm" /> with base_url = http://domain.name/domain/ <a href="http://domain.name/test.htm" /> with base_url = any folder from http://domain.name/ I need to get http://domain.name/test.htm from the 3 situations above (or any other identical string). After some tests, it appears that my_a_dom_node.href always return the full-qualified URI, including the http://domaine.name, which should be okay for what I want. jQuery has a different behaviour and $(my_a_dom_node).attr('href') returns the content (text) that appears inside the HTML. So my trick is to use $(my_a_dom_node).get(0).href to get the full URI. The question is: can I rely on this?

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• Parameters with default value not in PsBoundParameters?

  - by stej

  General code Consider this code: PS> function Test { param($p='default value') $PsBoundParameters } PS> Test 'some value' Key Value --- ----- p some value PS> Test # nothing I would expect that $PsBoundParameters would contain record for $p variable on both cases. Is that correct behaviour? Question I'd like to use splatting for a lot of functions that would work like this: function SomeFuncWithManyRequiredParams { param( [Parameter(Mandatory=$true)][string]$p1, [Parameter(Mandatory=$true)][string]$p2, [Parameter(Mandatory=$true)][string]$p3, ...other parameters ) ... } function SimplifiedFuncWithDefaultValues { param( [Parameter(Mandatory=$false)][string]$p1='default for p1', [Parameter(Mandatory=$false)][string]$p2='default for p2', [Parameter(Mandatory=$false)][string]$p3='default for p3', ...other parameters ) SomeFuncWithManyRequiredParams @PsBoundParameters } I have more functions like this and I don't want to call SomeFuncWithManyRequiredParams with all the params enumerated: SomeFuncWithManyRequiredParams -p1 $p1 -p2 $p2 -p3 $p3 ... Is it possible?

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• C# 4: conflicting overloaded methods with optional parameters

  - by Thomas

  I have two overloaded methods, one with an optional parameter. void foo(string a) { } void foo(string a, int b = 0) { } now I call: foo("abc"); interestingly the first overload is called. why not the second overload with optional value set to zero? To be honest, I would have expect the compiler to bring an error, at least a warning to avoid unintentional execution of the wrong method. What's the reason for this behaviour? Why did the C# team define it that way? Thanks for your opinions!

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• Selenium Grid not always using all of its registered RC's, why?

  - by BenA

  My Selenium Grid setup is as follows (all VMs) VM1 - Windows 7 x64 - Grid Hub + 2 RCs registering the default *firefox environment VM2 - Windows XP x32 - 2 RCs registering the default *firefox environment VM3 - Windows XP x32 - 2 RCs registering the default *firefox environment I'm happily using Mbunit and Gallio to drive the Grid, but my problem is that sometimes the Grid hub will stop passing executions over to 1 or more of the RCs, despite their showing available on the hub console. They seem to be happily maintaining their heartbeat back to the hub, but they're never asked to do any more work. This is after they had been executing tests earlier in the test run. Does anybody have any ideas why this should happen? In every case I've observed this behaviour, the last test an RC executed, before it then seemingly gets ignored by the hub, passed, and the session was successfully closed. Interestingly, whenever it happens to more than 1 of the RCs, its always (so far) been the pair that are running on the same VM. Yet they're managing to maintain their heartbeat, so it isn't a network connectivity problem. Any help would be greatly appreciated!

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• Monotouch UIScrollView/UIPageView with UITableView as panel

  - by cvista

  Hi I'm building an app which is a guide to festivals. In the app I show lineups. You can see the Ui I have built for this on the video here: http://wmcstar.com/download.html The problem I have is that the scrollview/UIPageView - which does the left/right scrolling through the days, sometimes conflicts (i think) with the up/down scrolling of the days lineup UITableView and crashes. It doesn't crash if I disable scrolling - so the only way to switch between days is by selecting the day and programatically scrolling to the day rather than by using touch gestures. Has anyone else seen this behaviour? w://

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• Checking if date parsing is correct

  - by Javi

  Hello, I have this code for checking whether the Date is OK or not, but it's not ckecking all the cases. For example when text="03/13/2009" as this date doesn't exist in the format "dd/MM/yyyy" it parses the date as 03/01/2010. Is there any way to change this behaviour and getting an exception when I try to parse a Date which is not correct? What's the best way to do this validation? public static final String DATE_PATTERN = "dd/MM/yyyy"; public static boolean isDate(String text){ SimpleDateFormat formatter = new SimpleDateFormat(DATE_PATTERN); ParsePosition position = new ParsePosition(0); formatter.parse(text, position); if(position.getIndex() != text.length()){ return false; }else{ return true; } } Thanks.

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• sqlserver 2008 and sql CE over Microsoft sync framework

  - by malik

  The server will drop the connection, because the client driver has sent multiple requests while the session is in single-user mode. This error occurs when a client sends a request to reset the connection while there are batches still running in the session, or when the client sends a request while the session is resetting a connection. Please contact the client driver vendor. Synchronisation process some time work and mostly fails. I have 5 client of sql CE that need to sync and i am using WCF IIS and sql 2008 for this process.

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• href image link download on click

  - by Piero

  Hey all, I generate normal links like: <a href="/path/to/image"><img src="/path/to/image" /></a> in a web app. When I click on the link, it displays the picture in a new page. If you want to save the picture, then you need to right click on it and select "save as" I don't want this behaviour, I would like to have a download box popping out when I click on the link, is that possible just with html or javascript? How? If not I guess I would have to write a download.php scrit and call it into the href with the file name as parameter...? Greetings! :)

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• Equivalents of Java and .NET technologies/frameworks

  - by Paul Sasik

  I work in a shop that is a mix of mostly Java and .NET technologists. When discussing new solutions and architectures we often encounter impedance in trying to compare the various technologies, frameworks, APIs etc. in use between the two camps. It seems that each camp knows little about the other and we end up comparing apples to oranges and forgetting about the bushels. While researching the topic I found this: Java -- .Net rough equivalents It's a nice list but it's not quite exhaustive and is missing the key .NET 3.0 technologies and a few other tidbits. To complete that list: what are the near/rough equivalents (or a combination of technologies) in Java to the following in .NET? WCF WPF Silverlight WF Generics Lambda expressions Linq (not Linq-to-SQL) TPL F# IronPython IronRuby ...have i missed anything else? Note that I omitted technologies that are already covered in the linked article. I would also like to hear feedback on whether the linked article is accurate. Thanks.

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• Embedding QT application in Eclipse/RCP framework

  - by mots_g

  Hi, I'm trying to embed my working QT application in Eclipse RCP framework(might not sound wise but i need to do this). I'm using QT 4.5 (not yet explored what QTJambi is all about and has to offer) I convert my existing application as a dll and load it through eclipse application. Things dont work as they should as the QTApplication loop sits listening for events, and there is a good mismatch of events. Certain UI objects dont get the events. If I comment my Qppliaction::exec(), then the behaviour in QT app changes. Is there a way to achieve what I'm trying to achieve?? Thanks

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• How to set a control ID in ListView Template dynamically?

  - by citronas

  A have a ListView that is rendered with multiple items. Now I want to toggle some HTML attributes with JQuery. Therefore it would be best to have access to these elements via an unique ID. But trying to create a "dynamic" and therefore unique ID by <tr runat="server" ID='<%# this.GetUniqueID() %>'> </tr> results in an error that tells me that the ID needs to be simple and cannot be set by a call to a method. I know that I can dynamically create controls in the code-behind and set the ID there. But in this case, I'd rather like to let the content be rendered by the ListView itself. That brings me to the conclusion that the idea of setting a dynically ID in the Template is totally wrong. How can I achieve the desired behaviour?

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• convert string to float without silent NaN/Inf conversion

  - by Peter Hansen

  I'd like convert strings to floats using Python 2.6 and later, but without silently converting things like 'NaN' and 'Inf'. Before 2.6, float("NaN") would raise a ValueError. Now it returns a float for which math.isnan() returns True, which is not useful behaviour for my application. Here's what I've got at the moment: import math def get_floats(source): for text in source.split(): try: val = float(text) if math.isnan(val) or math.isinf(val): raise ValueError yield val except ValueError: pass This is a generator, which I can supply with strings containing whitespace-separated sequences representing real numbers. I'd like it to yield only those fields which are purely numeric representations of floats, as in "1.23" or "-34e6", but not for example "NaN" or "-Inf". Test case: assert list(get_floats('1.23 -34e6 NaN -Inf')) == [1.23, -34000000.0] Please suggest alternatives you consider more elegant, even if they involve "look before you leap" (which is normally considered a lesser approach in Python).

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• C# .NET 4.0 and Generics

  - by Mr Snuffle

  I was wondering if anyone could tell me if this kind of behaviour is possible in C# 4.0 I have an object hierarchy I'd like to keep strongly typed. Something like this class ItemBase {} class ItemType<T> where T : ItemBase { T Base { get; set; } } class EquipmentBase : ItemBase {} class EquipmentType : ItemType<EquipmentBase> {} What I want to be able to do to have something like this ItemType item = new EquipmentType(); And I want item.Base to return type ItemBase. Basically I want to know if it's smart enough to strongly typed generic to a base class without the strong typing. Benefit of this being I can simply cast an ItemType back to an EquipmentType and get all the strongly typedness again. I may be thinking about this all wrong...

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• Setting a session variable in Global.asax causes AJAX errors

  - by Fly_Trap

  I'm getting a very peculiar problem with my asp.net application, it took me an age to track down but I still don't know what is causing this behaviour. If I set a session variable in the Application_PreRequestHandlerExecute event, then my external JavaScript files are ignored, and therfore causing a raft of errors. I have simplified the problem below. E.g. I have file called JScript.js containing the code: function myAlert() { alert("Hi World"); } And in my Default.aspx file I reference the js with the code: <script src="JScript.js" type="text/javascript"></script> And in the body onload event I call the myAlert() function: <body onload="myAlert()"> And finally in the Global.asax file: Private Sub Application_PreRequestHandlerExecute(ByVal sender As Object, ByVal e As EventArgs) HttpContext.Current.Session("myVar") = "MyValue" End Sub If you run the Default.aspx file you will see the js function isnt called, however, if you comment out the line of code Global.asax then the external js is called and the function executed when the page loads. Why is this?

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• Change notification in EF EntityCollection

  - by Savvas Sopiadis

  Hi everybody! In a Silverlight 4 proj i'm using WCF RIA services, MVVM principles and EF 4. I 'm running into this situation: created an entity called Category and another one called CategoryLocale (automated using VS, no POCO). The relation between them is 1 to N respectively (one Category can have many CategoryLocales), so trough this relationship one can implement master-detail scenarios. Everytime i change a property in the master record (Category) i get a notifypropertychanged notification raised. But: whenever i change a property in the detail (CategoryLocales) i don't get anything raised. The detail part is bound to a Datagrid like this: <sdk:DataGrid Grid.Row="3" Grid.ColumnSpan="2" ItemsSource="{Binding SelectedRecord.CategoryLocales,Mode=TwoWay}" AutoGenerateColumns="False" VerticalScrollBarVisibility="Auto" > Any help is appreciated! Thanks in advance

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• .net difference between right shift and left shift keys

  - by Mr AH

  I am currently working on an application which requires different behaviour based on whether the user presses the right or left shift key (RShiftKey, LShiftKey), however when either of these keys is pressed I only see ShiftKey | Shift. Is there something wrong with my keyboard? (laptop) do I need a new keyboard driver/keyboard in order to send the different key commands maybe... This is a pretty massive problem at the moment, as there is no way of testing that the code works (apart from unit tests). Anyone had any experience of the different shift/alt/ctrl keys?

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• How to leverage concurrency checking with EF 4.0 POCO Self Tracking Entities in a N-Tier scenario?

  - by Mark Lindell

  I'm using VS1010RC with the POCO self tracking T4 templates. In my WCF update service method I am using something similar to the following: using (var context = new MyContext()) { context.MyObjects.ApplyChanges(myObject); context.SaveChanges(); } This works fine until I set ConcurrencyMode=Fixed on the entity and then I get an exception. It appears as if the context does not know about the previous values as the SQL statement is using the changed entities value in the WHERE clause. What is the correct approach when using ConcurrencyMode=Fixed?

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• Rails, REST Architecture and HTML 5: Cross domain requests with pre-flight requests

  - by Orion

  While working on a project to make our site HTML 5 friendly, we were eager to embrace the new method for Cross Domain requests (no more posting through hidden iframes!!!). Using the Access Control specification we begin setting up some tests to verify the behaviour of various browsers. The current Rails RESTful architecture relies on the four HTTP verbs: GET, POST, PUT, DELETE. However in the Access Control spec, it dictates that non-simple methods (PUT, DELETE) require a pre-flight request using the HTTP verb OPTIONS. In addition during testing we discovered that Firefox 3.5.8 pre-flight POST requests as well. My question is this. Is anyone aware of any project for the Rails framework working to address the issue? If not, any opinions about the best strategy to support the OPTIONS method, since it has to support the routes for all the POST, PUT, DELETE methods?

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• Can’t tap button after interface rotation

  - by zoul

  Hello! I’ve got a view that has to be presented both in landscape and portrait. The transition between different orientations is done by repositioning and resizing the subviews. One of the subviews is a button (plain UIButton with an image background). When the interface rotates to landscape, the button starts misbehaving – it can only be tapped on its left part, the right part does not respond. When I move the button a bit to the left, the tappable part grows. The button should not be obscured by any other view, it’s clearly visible. When I override the hitTest:withEvent: method in the parent view, I see that the taps in the “numb” part of the button result in nil being returned. I think I have seen this behaviour once before, but unfortunately I’ve forgotten the source of the problem :) Any help?

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• Is it possible to get an NSView to pass rightMouseDown: to the next responder without subclassing?

  - by Benedict Cohen

  I have a view which contains a few subviews: mainView subViewA subViewB SubViewC mainView is an NSView constructed from a nib and is controlled with an NSViewController subclass. The subviews are standard views such as NSTextField and NSImageView and are configured to be non-editable. I want mainView to receive rightMouseDown: even when the event is triggered in one of the subviews. The default implementation of rightMouseDown: in NSResponder passes the event to the next responder, but NSView changes the default behaviour and does not pass it to the next responder. I could subclass all of the subviews but this doesn't seem like a very elegant or maintainable solution. How can I get the subviews to pass rightMouseDown: messages to the next responder without subclassing all of the subviews?

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• Uploadify refuses to upload WMV, FLV and MP4 files

  - by Jon Winstanley

  The uploadify plugin for JQuery seems very good and works for most file types. However, it allows me to upload all file types apart from the ones I need! Namely .WMV, .FLV and .MP4 I have googled the issue and not found anyonw having such difficulties. I have already tried changing the fileExt parameter and also tried removing it altogether. I have testing in Google Chrome, IE7 and Firefox and none work for thes efile types. Is there a known reason for this behaviour?

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• Differences Between Java and HTML5 -- Squeezed Background

  - by ashes999

  I noticed some (slightly disturbing) differences between the HTML5 and the Java versions of the playN showcase (source). (I just downloaded everything yesterday, so presumably I'm running the latest samples.) Specifically, two flaws I noticed in the HTML5 version: The text on the buttons is quite blurry (not anti-aliased, but actually blurry) compared to the Java version The background in the "Swirl" sample is restricted to one corner of the app; it doesn't cover the entire visible space the way it does in the Java version. Are these bugs, or the expected behaviour?

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• Automating Portlet Deployment to WebSphere Portal Server 6.1

  - by GaZ

  I've recently started on a project to develop some portlets which will run on IBM WebSphere Portal Server 6.1. Does anyone know of any scripts, Ant tasks, Maven plugins, etc. for publishing a portlet to Portal Server? In the WebSphere Portlet Factory plugin for eclipse it is possible to "publish" a portlet project to Portal Server instance, however I'd like to know what's going on underneath the hood here (or at least how to replicate the behaviour) so that I can do it in other places (i.e. from continuous integration server). UPDATE: From what I've read it sounds like the Portlet Factory publishes using a WebSphere JMX client. Does anyone know where I can find more details on this?

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