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• Building a list of favorites from Core Data

  - by Jim

  I'm building an app with two tabs. The first tab has a main tableview that connects to a detail view of the row. The second tab will display a tableView based on the user adding content to it by tapping a button on the detail view. My question is this. What is the correct design pattern to do this? Do I create a second ManagedObjectContext/ManagedObjectContextID then save that context to a new persistent store or can the MOC be saved to the existing store without affecting the original tableview? I've looked at CoreData Recipes and CoreData Books and neither deal with multiple stores although books does deal with multiple MOC's. Any reference would be great.

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• IntelliJ 9, Glassfish 2.1.1 & Maven2

  - by Xetius

  I have a Maven2 project which I am editing in IntelliJ IDEA 9.0.2. I am trying to build it and debug it within a Glassfish 2.1.1 container. This is only working sometimes. Occasionally it is giving me an error, telling me it can't deploy. Other times, it deploys, but does not run the filtering on the POM, not replacing a variable in the sun-web.xml file (and other container specific files) leaving it as ${targetenv} instead of replacing it with the value it should. I think I am missing something here, and have something very confused, but I have no idea what. Any help would be most gratefully received.

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• Accessing "Public" methods from "Private" methods in javascript class

  - by mon4goos

  Is there a way to call "public" javascript functions from "private" ones within a class? Check out the class below: function Class() { this.publicMethod = function() { alert("hello"); } privateMethod = function() { publicMethod(); } this.test = function() { privateMethod(); } } Here is the code I run: var class = new Class(); class.test(); Firebug gives this error: publicMethod is not defined: [Break on this error] publicMethod(); Is there some other way to call publicMethod() within privateMethod() without accessing the global class variable [i.e. class.publicMethod()]?

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• Parametrized Strategy Pattern

  - by ott

  I have several Java classes which implement the strategy pattern. Each class has variable number parameters of different types: interface Strategy { public data execute(data); } class StrategyA implements Strategy { public data execute(data); } class StrategyB implements Strategy { public StrategyB(int paramA, int paramB); public data execute(data); } class StrategyB implements Strategy { public StrategyB(int paramA, String paramB, double paramC); public data execute(data); } Now I want that the user can enter the parameters in some kind of UI. The UI should be chosen at runtime, i.e. the strategies should be independent of it. The parameter dialog should not be monolithic and there should be the possibility to make it behave and look different for each strategy and UI (e.g. console or Swing). How would you solve this problem?

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• Ninject Contextual Binding: Where do I get Ninject.Conditions.dll

  - by Twisted

  I've read about ninjects contextual binding here : http://ninject.codeplex.com/wikipage?title=Contextual%20Binding and am trying to get it working in my project. The docs state that I need to add a reference to Ninject.Conditions.Dll which I do not have. Does anybody know where to get this? I've tried over at github : https://github.com/ninject/ninject I used the download link to get the 2.0.1.0 sources and managed to build them but no dll. I found a similar question here : Where can I find ninject.web.mvc.dll? and an answer with a link to a build server. I followed the link and I get a login request for team city. I don't have an account.

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• How to use htaccess to rewrite url to html anchor tag (#)

  - by Lee L

  Hi - I have a situation where I want to take the following URL: /1/john and have it redirect using Apache's htaccess file to go to /page.php?id=1&name=john#john so that it goes to an html anchor with the name of john. I've found a lot of reference to escaping special characters, and to adding the [NE] flag so that the redirect ignores the # sign, but these don't work. For example, adding [NE,R] means that the URL just appears in the browser address as the original: http://mysite.com/page.php?id=1&name=john#john. Any help would be appreciated.

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• boost's regex won't compile

  - by myeviltacos

  Hi everyone. I am using boost 1.45.0 on Ubuntu with Code::Blocks as my IDE, and I can't get basic_regex.hpp to compile. I'm pretty sure I set up boost correctly, because I can compile programs using boost::format without any errors. But I'm getting this annoying error, and I don't know how to get rid of it. The code that is provoking the error: boost::regex e("\"http:\\\\/\\\\/localhostr.com\\\\/files\\\\/.+?\""); Compiler output (GCC): obj/Debug/main.o In function `boost::basic_regex<char, boost::regex_traits<char, boost::cpp_regex_traits<char> > >::assign(char const*, char const*, unsigned int)' /home/neal/Documents/boost_1_45_0/boost/regex/v4/basic_regex.hpp|379| undefined reference to `boost::basic_regex<char, boost::regex_traits<char, boost::cpp_regex_traits<char> > >::do_assign(char const*, char const*, unsigned int)'| ||=== Build finished: 1 errors, 0 warnings ===| Did I miss a step when setting up boost, or should I downgrade to another version of boost?

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• HTTP Authentication with Web References

  - by Thor

  I have a web reference created from the WSDL, but I'm not allowed to call the function unless I pass in the username / password; the original code for the XML toolkit was: Set client = CreateObject("MSSOAP.SOAPClient30") URL = "http://" & host & "/_common/webservices/Trend?wsdl" client.mssoapinit (URL) client.ConnectorProperty("WinHTTPAuthScheme") = 1 client.ConnectorProperty("AuthUser") = user client.ConnectorProperty("AuthPassword") = passwd On Error GoTo err Dim result1() As String result1 = client.getTrendData(expression, startDate, endDate, limitFromStart, maxRecords How do I add the AuthUser/AuthPassword to my new code? New code: ALCServer.TrendClient tc = new WindowsFormsApplication1.ALCServer.TrendClient(); foreach(string s in tc.getTrendData(textBox2.Text, "5/25/2009", "5/28/2009", false, 500)) textBox1.Text+= s;

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• Using .net 3.5 assemblies in asp.net 2.0 web application

  - by masterik

  I have an .net assembly build against 3.5 framework. This assembly has a class Foo with two method overrides: public class Foo { public T Set<T>(T value); public T Set<T>(Func<T> getValueFunc); } I'm referencing this assembly in my asp.net 2.0 web application to use first override of the Set method (without Func). But on build I get an error saying that I should reference System.Core to use System.Func delegate... but I'm not using this type... Is there a workaround to solve this? PS: There is no option to convert my web application targeting 3.5 framework.

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• Rosetta Stone: Great example projects

  - by Adam Bellaire

  In your opinion, what is a great example application which demonstrates the best techniques for its language and problem domain, and could be used as a reference for other programmers? Please provide answers where the source is readily available for viewing (i.e. open-source projects), and provide a link. The first line of each answer should indicate the language and the problem domain in bold, e.g.: Java - Web Application ... or ... C# - DX Game As with other Rosetta Stone questions, the answers here should demonstrate the language/technology in the example in such a way that programmers who aren't familiar with them can get an impression of what they're like.

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• Masked Edit extender inside a Repeater

  - by Viswa

  How can i dynamically create a textBox and a Masked Edit extender inside a Panel. My code is something like this: In the ASPX page: In the Aspx.cs page Private DataView Function1() { Dataview dv =new dataview(); return dv; } Private void ShowProducts_OntemDataBound(object sender, RepeaterEventItem e) { //Consider For the First Iteration of the Repeater I am Creating a Simple Text Box Dynamically Textbox txt = new textbox(); txt.Text = "8888888888"; txt.Id = "TextBox1"; //Consider For the Second Iteration of the Repeater I am Creating another TextBox and a Textbox txt1 = new textBox(); txt1.text="2223334444"; txt1.Id = "TextBox2"; MaskedEditExtender mskEdit = (MaskedEditExtender)e.Item.FindControl("MskEdit"); mskEdit.TargetControlId = txt1.Id; Panel panel1 = (Panel)e.item.Findcontrol("Panel1"); panel1.Controls.Add(txt1); } When running the above code it is giving me "Null Reference Exception for MaskedEditExtender".Please suggest me some way for this.

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• NSURL Out of Scope

  - by ct2k7

  Hi, I've an issue with this piece of code: NSURL *url = [[NSURL alloc] initWithString:@"http://authenticate.radonsystems.net/products.xml"]; NSXMLParser *xmlParser = [[NSXMLParser alloc] initWithContentsOfURL:url]; //Initialize the delegate. XMLParser *parser = [[XMLParser alloc] initXMLParser]; //Set delegate [xmlParser setDelegate:parser]; //Start parsing the XML file. BOOL success = [xmlParser parse]; if(success) NSLog(@"No Errors"); else NSLog(@"Error Error Error!!!"); } // this is the breakpoint! I've listed where the breakpoint is - (I've placed one on every line of code in the area) Now at this point, success = NO, and looking back through the code, I reach the first line. XCode tells me that the url variable is out of scope with code 0x15db010. What does this mean?

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• How do you include additional files using VS2010 web deployment packages?

  - by Jason

  I am testing out using the new web packaging functionality in visual studio 2010 and came across a situation where I use a pre-build event to copy required .dll's into my bin folder that my app relies on for API calls. They cannot be included as a reference since they are not COM dlls that can be used with interop. When I build my deployment package those files are excluded when I choose the option to only include the files required to run the app. Is there a way to configure the deployment settings to include these files? I have had no luck finding any good documentation on this.

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• The Zen of Python distils the guiding principles for Python into 20 aphorisms but lists only 19. What's the twentieth?

  - by Jeff Walden

  From PEP 20, The Zen of Python: Long time Pythoneer Tim Peters succinctly channels the BDFL's guiding principles for Python's design into 20 aphorisms, only 19 of which have been written down. What is this twentieth aphorism? Does it exist, or is the reference merely a rhetorical device to make the reader think? (One potential answer that occurs to me is that "You aren't going to need it" is the remaining aphorism. If that were the case, it would both exist and act to make the reader think, and it would be characteristically playful, thus fitting the list all the better. But web searches suggest this to be an extreme programming mantra, not intrinsically Pythonic wisdom, so I'm stumped.)

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• C#/.Net: What are the best practices for setting ResXResourceReader's basepath?

  - by raj.tiwari

  I am working on a Windows Forms application in C#/.Net. I want to use a resource file that contains translations of my strings. My my project in visual studio I have the following hierarchy: Project CS files ... Resources\ resource.en-US.resx I am trying to read in the resource file as follows: m_ResourceReader = new ResXResourceReader("resources/resource.en-US.resx"); When I run this project, Visual Studio seems to look for the resources folder in the bin/Debug output folder of my project. My questions are: What is the right way to reference a resource file? I would like my installer to place this resource file under my application's folder under Program Files\MyApp\resources\resource.en-US.resx. What would be the way to make ResXResourceReader read it from that location. Thanks for your help. -Raj

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• [ASP.NET] Odd HttpRequest behaviour

  - by barguast

  I have a web service which runs with a HttpHandler class. In this class, I inspect the request stream for form / query string parameters. In some circumstances, it seemed as though these parameters weren't getting through. After a bit of digging around, I came across some behaviour I don't quite understand. See below: // The request contains 'a=1&b=2&c=3' // TEST ONLY: Read the entire request string contents; using (StreamReader sr = new StreamReader(context.Request.InputStream)) { contents = sr.ReadToEnd(); } // Here 'contents' is usually correct - containing 'a=1&b=2&c=3'. Sometimes it is empty. string a = context.Request["a"]; // Here, a = null, regardless of whether the 'contents' variable above is correct Can anyone explain to me why this might be happening? I'm using a .NET WebClient and UploadDataAsync to perform the request on the client if that makes any difference. If you need any more information, please let me know.

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• Show choosen option in a notification Feed, Django

  - by apoo

  Hey I have a model where : LIST_OPTIONS = ( ('cheap','cheap'), ('expensive','expensive'), ('normal', 'normal'), ) then I have assigned the LIST_OPTIONS to nature variable. nature = models.CharField(max_length=15, choices=LIST_OPTIONS, null=False, blank=False). then I save it: if self.pk: new=False else: new=True super(Listing, self).save(force_insert, force_update) if new and notification: notification.send(User.objects.all().exclude(id=self.owner.id), "listing_new", {'listing':self, }, ) then in my management.py: def create_notice_types(app, created_models,verbosity, **kwargs): notification.create_notice_type("listing_new", _("New Listing"), _("someone has posted a new listing"), default=2) and now in my notice.html I want to show to users different sentences based on the options that they have choose so something like this: LINK href="{{ listing.owner.get_absolute_url }} {{listing.owner}} {% ifequal listing.nature "For Sale" %} created a {{ listing.nature }} listing, <a href="{{ listing.get_absolute_url }}">{{listing.title}}</a>. {% ifequals listing.equal "Give Away"%} is {{ listing.nature }} , LINK href="{{ listing.get_absolute_url }}" {{listing.title}}. {% ifequal listing.equal "Looking For"%} is {{ listing.nature }} , LINK href="{{ listing.get_absolute_url }}" {{listing.title}} {% endifequal %} {% endifequal %} {% endifequal %} Could you please help me out with this. Thank you

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• How to setup a project to use TweetSharp

  - by Stuart Helwig

  I am trying to follow Pete Brown's introductory WPF tutorial which makes use of the TweetSharp libraries to interact with Twitter. I have downloaded what appears to be the latest TweetSharp binaries (and a few others including the ReleaseCandidate) from Codeplex (http://tweetsharp.codeplex.com/). No matter what references I add and no matter what using statements I try, I cannot create a reference to the TwitterService for the FluentTwitter class. I simply get the compiler error - "The type or namespace cannot be found". Now I've noticed that the TweetSharp.dll that Pete references is 518KB but the one contained in each of my different downloads is only 84kb. (I've tried several times - I am getting the full download here). The link from Pete's article to the TweetSharp libraries, no longer works (http://code.google.com/p/tweetsharp/). What basic element am I missing here or what could I be doing wrong?

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• Sharing constants across a WCF service

  - by Sandor Davidhazi

  I have certain strings which contain special characters so they can not be shared as enum members across a WCF service. (Actually, they are keys for configuration values.) I want to be able to pass in the keys at client side and get back the config values. If there is a change, I only want to change the config keys at one place. Constants would be ideal, because they can be changed as strong references across the entire solution, and the underlaying value could be updated with a service reference update. Currently I can think of two possible solutions: Create a shared assembly and place the constants there Share the constants across the service. The problem is, I can't get the datacontractserializer to serialize the constants. Is that possible at all? Is the shared assembly the only option I have?

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• known memory leaks in 3ds max?

  - by Denise

  I've set up a script in 3ds max to render a bunch of animations into frames. To do this, I open up a file with all of the materials, load an animation (as a bip) onto the figure, then render. We were seeing a problem where eventually the script would fail because it was unable to open the next file-- max had consumed all of the system memory. Closing max, of course, freed the memory, and we were able to continue with the script. I checked out the heapfree variable, hoping to see a memory leak within my script, hoping to see a memory leak within my own (maxscript) code-- but the amount of free space was the same after every animation. Then, it must be 3ds max which is consuming all of that memory. Nothing in max need be saved from animation to animation-- is there some way to get max to free that memory? (I've tried resetMaxFile() and manually deleting all of the objects in the scene). Is there any known sets of operations that cause max to grow out of control?

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• Using wix3 SqlScript to run generated temporary sql-script files.

  - by leiflundgren

  I am starting to write an installer which will use the SqlScript-element. That takes a reference to the Binary-table what script to run. I would like to dynamically generate the script during the installation. I can see three possibilities: Somehow to get SqlScript to read it data from a file rather then a Binary entry. Inject my generated script into the Binary table Using SqlString Which will cause the need to place some rather long strings into Properties, but I guess that shouldn't really be a prolem. Any advice? Regards Leif (My reason, should anyone be interested is that the database should have a job set up, that calls on an installed exe-file. I prefer to create the job using sqlscript. And the path of that file is not known until InstallDir has been choosen.)

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• Equality between two enumerables

  - by Berryl

  I have two enumerables with the exact same reference elements, and wondering why Equals wouldn't be true. As a side question, the code below to compare each element works, but there must be a more elegant way Cheers, Berryl var other = (ActivityService) obj; if (!AllAccounts.Count().Equals(other.AllAccounts.Count())) return false; for (int i = 0; i < AllAccounts.Count(); i++) { if (!AllAccounts.ElementAt(i).Equals(other.AllAccounts.ElementAt(i))) { return false; } } return true;

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• Binding AutoCompleteBox inside DataTemplate

  - by Thiago

  I have the following AutoCompleteBox defined inside DataTemplate: <Window.Resources> <DataTemplate x:key="PaneTitleTemplate"> <Grid> <Grid.ColumnDefinitions> <ColumnDefinition /> <ColumnDefinition /> </Grid.ColumnDefinition> <ContentPresenter Content="{Binding}" /> <toolkit:AutoCompleteBox x:Name="InsertBox" ItemsSource="{???}" /> </Grid> </DataTemplate> </Window.Resources> ... <radRock:RadPane x:Name="pane1" TitleTemplate="{StaticResource PaneTitleTemplate}"/> Now I'd like to fill it with a list of strings, but I don't know which Binding should I use. The list of strings is an instance variable from the Window. What should I do?

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• Python 3.1.1 Class Question

  - by Protean

  I'm a new Python programmer who is having a little trouble using 'self' in classes. For example: class data: def __init__(self): self.table = [] def add(self, file): self.table.append(file) data.add('yes') In this function I want to have table be a variable stored in the class data and use add to modify it. However, when I run this script it gives me the error: Traceback (most recent call last): File "/Projects/Python/sfdfs.py", line 7, in <module> data.add('yes') TypeError: add() takes exactly 2 positional arguments (1 given) I assume that I am trying to call the function the wrong way in this instance, as this syntax is very similar to an example in the python documentation: http://docs.python.org/3.1/tutorial/classes.html

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• Should we use Visual Studio 2010 for all SQL Server Database Development?

  - by Luke

  Our company currently has seven dedicated SQL Server 2008 servers each running an average of 10 databases. All databases have many stored procedures and UDFs that commonly reference other databases both on the same server and also across linked servers. We currently use SSMS for all database related administration and development but we have recently purchased Visual Studio 2010 primarily for ongoing C# WinForms and ASP.NET development. I have used VS2010 to perform schema comparisons when rolling out changes from a development server into production and I'm finding it great for this task. We would like to consider using VS2010 for all database development going forward but as far as I understand, we would have to set up ALL databases as projects because of the dependencies on linked servers etc. My question is, do you have any experience using VS2010 for database development in a similar environment? Is it easy to use in tandem with SSMS or is it a one way street once VS2010 projects have been set up for all databases? Can you make any recommendations/impart any experience with a similar scenario? Thanks, Luke

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