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  • ASP MVC View Content as JSON

    - by Craig
    I have a MVC app with quite a few Controller Actions that are called using Ajax (jQuery) and return partial views content which updates a part of the screen. But what I would rather do is return JSON something like this. return Json(new { Result = true, Message = "Item has been saved", Content = View("Partial") }); Where the HTML is just a property of the Json. What this means is I need to retrieve the HTML that is rendered by the View method. Is there any easy way to do this, a few examples I have seen are quite convoluted. Edit: This question was originally for ASP.NET MVC 1, but if version 2 makes it easier I would like to hear the answer.

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  • JSON stringify standalone function for JavaScript

    - by karlthorwald
    I know of YUI who has a JSON.stringify utility and also of JSON2 from json.org. What are other good implementations of JSON.stringify? It should also work in IE6, IE7 and not depend on a framework. If it depends on anything this should be easily included all in one file. Edit: I could easily use jquery-json, which was suggested in the comments of the accepted answer. It did what I wanted. (It depends on jquery but that was easily solved)

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  • EF4 CTP5 - Map foreign key without object references?

    - by anon
    I feel like this should have a simple answer, but I can't find it. I have 2 POCOs: public class Category { public int Id { get; set; } public string Name { get; set; } } public class Product { public int Id { get; set; } public int CategoryId { get; set; } } Notice that there are no object references on either POCO. With Code-First, how do I make EF4 CTP5 define a relationship between the two database tables? (I know this is an unusual scenario, but I am exploring what's possible and what's not with Code-First)

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  • ASP.Net MVC and N-Tier

    - by Damien
    Greetings, Apologies in advance that I have not researched this toughly enough to answer the question myself, but I imagine it would take me some time and I would rather know now before I invest more time in learning it. I couldn't find anything in my initial research.. Why use ASP.Net MVC if your already using a multi-tier architecture (Data Layer, Logic Layer, Presentation Layer)? Other than the fact the controller has more power than the logic layer. Am I right in thinking I can use nHibernate and all my data access classes, entities, and mappings in the Model part of the MVC? When using controllers, is it best to separate a lot of the logic into a separate class so I can call it from multiple controllers? Or can I call them from the controllers themselves, considering the fact that I would not want all of them to be Actions, just normal methods. Thanks

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  • Hidden Features of ActionScript

    - by Ole Jak
    What are some of the hidden features of ActionScript? ActionScript is widely used language. It has been around for so many years. So at least from the existing features, do you know any that are not well known but very useful. Of course, this question is along the lines of: Hidden Features of JavaScript Hidden Features of CSS Hidden Features of C# Hidden Features of VB.NET Hidden Features of Java Hidden Features of ASP.NET Hidden Features of Python Hidden Features of TextPad Hidden Features of Eclipse Hidden Features of HTML Do not mention features of ActionScript 2.0, since it is quite old and not eweryone can understend it now Please specify one feature per answer. Note that it's not always a great idea to use these hidden features; often times they are surprising and confusing to others reading your code.

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  • Rails belongs_to issues

    - by Rahul
    I was trying to follow the answer provided by this post About Event_calendar.Showing only events for current user and not all events present However when I tried to add the belongs_to user in the event model, it gives me the following error. NameError (undefined local variable or method 'user' for #<Class:0x007fff15d1f6c0>): app/models/event.rb:3:in '<class:Event>' app/models/event.rb:1:in '<top (required)>' app/controllers/calendar_controller.rb:9:in 'index' Rendered .../.rvm/gems/ruby-1.9.3-p194/gems/actionpack-3.2.8/lib/action_dispatch/middleware/templates/rescues/_trace.erb (2.8ms) Rendered .../.rvm/gems/ruby-1.9.3-p194/gems/actionpack-3.2.8/lib/action_dispatch/middleware/templates/rescues/_request_and_response.erb (2.0ms) Rendered .../.rvm/gems/ruby-1.9.3-p194/gems/actionpack-3.2.8/lib/action_dispatch/middleware/templates/rescues/diagnostics.erb within rescues/layout (23.6ms) in my user.rb model I have included has_many :events Any idea how to fix this?

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  • Cost of using repeated parameters

    - by Palimondo
    I consider refactoring few method signatures that currently take parameter of type List or Set of concrete classes --List[Foo]-- to use repeated parameters instead: Foo*. This would allow me to use the same method name and overload it based on the parameter type. This was not possible using List or Set, because List[Foo] and List[Bar] have same type after erasure: List[Object]. In my case the refactored methods work fine with scala.Seq[Foo] that results from the repeated parameter. I would have to change all the invocations and add a sequence argument type annotation to all collection parameters: baz.doStuffWith(foos:_*). Given that switching from collection parameter to repeated parameter is semantically equivalent, does this change have some performance impact that I should be aware of? Is the answer same for scala 2.7._ and 2.8?

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  • VS 2010 MVC Formatting

    - by Brian
    Hello, MVC is formatting my code horribly, and I was wondering if you can turn it off? I feel the answer is no, but I was hoping VS 2010 had built in a setting... Here's what its formatting as: <% if (org.UserKey.HasValue) { %> <%= org.Reference(i => i.UserReference).Email%> <% } else { %> <%= org.UserEmail%> <% } %> I want the beginning brackets on the same line as the if and the else... Thanks.

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  • Struts2: Reading from database and populating JSP with results

    - by teehoo
    For a school project I am creating a simple search engine (using Struts2), where I read from a database, and redirect the user to a new page that shows the results. my struts.xml file is as follows: <action name="searchRooms" class="cz.vutbr.fit.Search" method="execute"> <result name="success">/pages/showSearchResults.jsp</result> <result name="input">/pages/search.jsp</result> </action> I have no idea what to search on Google to achieve this. I'm looking for a simple answer or some keywords to use for searching on Google.

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  • Haskell: type inference and function composition

    - by Pillsy
    This question was inspired by this answer to another question, indicating that you can remove every occurrence of an element from a list using a function defined as: removeall = filter . (/=) Working it out with pencil and paper from the types of filter, (/=) and (.), the function has a type of removeall :: (Eq a) => a -> [a] -> [a] which is exactly what you'd expect based on its contract. However, with GHCi 6.6, I get gchi> :t removeall removeall :: Integer -> [Integer] -> [Integer] unless I specify the type explicitly (in which case it works fine). Why is Haskell inferring such a specific type for the function?

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  • Extracting Text from between parentheses in PHP using preg_replace

    - by Christopher
    I am trying to take a string of text like so: $string = "This (1) is (2) my (3) example (4) text"; In every instance where there is a positive integer inside of parentheses, I'd like to replace that with simply the integer itself. The code I'm using now is: $result = preg_replace("((\d+))", "$0", $string); But I keep getting a "Delimiter must not be alphanumeric or backslash" error. Any thoughts? I know there are other questions on here that sort of answer the question, but my knowledge of regex is not enough to switch it over to this example.

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  • How to inject JPA EntityManager using spring

    - by marcos
    Hello all! I have a few questions about jpa + spring integration running on tomcat, i've been looking fo some time and couldn't find any concrete answer, so here it goes: Is it possible to have spring to inject the JPA entityManager object into my DAO class without extending JpaDaoSupport? if yes, does spring manage the transaction in this case? I'm trying to keep spring configuration as simple as possible: <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager"> <property name="entityManagerFactory" ref="em"/> </bean> <bean id="em" class="org.springframework.orm.jpa.LocalEntityManagerFactoryBean"> <property name="persistenceUnitName" value="myPU"/> </bean> EDIT: that was very helpfull, thank you all!

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  • NNTP & Socket - How to interrupt?

    - by Cosmo
    Hi. I'm sending a message to a NNTP server in order to fetch an article's body. I don't want to wait for the answer to complete, cause I only need the first 3 lines from the body. How can I interrupt the transfer and move on to the next article? Now when I request another's article message body, I still get data from the previous one. The only way that worked for me, was to close the stream and reopen it. In my opinion this is a little bit hardcore, cause I have to login to the server every time I need a new file. Any help would be appreciated. Kind Regards.

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  • Loading a UIDatePicker in Landscape on a UINavigationController

    - by Ryan
    I have a custom UINavigationController that supports auto-rotate. I also have a UIDatePicker on one of my views that I throw onto the stack of the Navigation controller. The auto-rotate works if I start the date picker view in portrait and then rotate it. If I try load the date picker view in landscape to begin with, the view is all messed up. It looks like it would if it didn't support rotation and the frame only has about half of the picker visible and off center. I've tried making my own date picker that supports auto-rotate in case that was the problem, I've tried creating two different views and swapping them out, and I've tried changing the view frame size on the ViewWillAppear method. None of them seem to be working for me as of yet. Anyone have any suggestions on how to get the date picker to show up in landscape correctly on a navigation controller? I probably am overlooking something simple and the answer is right in front of me, but I'm not finding it.

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  • how 2 use logmath twice in same form(sphinx4)

    - by Pradeep
    i have configured sphinx with netbeans and its wroking fine. but im using a button to do the process. but after it recognisers. i want to do the process again. but then it gives a error saying the "logmath instance is already present" and saying cannot open the microphone. can someone give me a solution. what i want to do is use speech recogntion in several times in the same form. till it gives the correct answer. please help me this is the error i get "Creating new instance of LogMath while another instance is already present 10:53:27.833 SEVERE microphone Can't open microphone line with format PCM_SIGNED 16000.0 Hz, 16 bit, mono, 2 bytes/frame, big-endian not supported."

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  • XCode 3.2 does not mark unit test assert failures in the editor

    - by Cliff
    I've been off in Java land for about a month or so and now, upon returning to XCode I feel lost. I've upgraded 1st to 3.1.2 then recently to 3.2 and also got a new Mac with Snow Leopard so I'm not exactly sure when the problem surfaced. I just know that I used to get little red bubbles in my unit test next to the failing asserts and that no longer seems to happen. Is there a way to restore this? I've been trying to use Apple's own SenTesting framework instead of GoogleTools for mac like I used to. Should I revert to Google Tools? Does anyone have an answer?

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  • Question on multi-probe Local Sensitive Hashing

    - by Yijinsei
    Hey guys sorry to be asking this kind noob question, but because I really need some guidance on how to use Multi probe LSH pretty urgently, so I did not do much research myself. I realize there is a lib call LSHKIT available that implemented that algorithm, but I have trouble trying to figure out how to use it. Right now, I have a few thousand feature vector 296 dimension, each representing an image. The vector is used to query an user input image, to retrieve the most similar image. The method I used to derive the distance between vector is euclidean distance. I know this might be a rather noob question, but do you guys have knowledge on how should i implement multi probe LSH? I am really very grateful to any answer or response.

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  • Timeline graph - how to handle "time gaps"?

    - by ebae
    I've been working with Google chart API and annotated timeline. Drawing graphs is fine. I have no problem. However, I need to draw a timeline graph for share prices. And as you may know, share prices are meaningful only between certain times (e.g. from 10AM to 4PM, when the market opens and closes). How do I change the Google timeline graph so that on X-Axis, the range is from 10AM-4PM? Right now, it just draws a long constant line between 4PM till 10AM next day before prices start to move again. Man, I hope that makes sens. (Google finance chart seems to do it). Thank you SO much for whoever can answer. You are a CHAMPION!

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  • Scheme homework problem, need help.

    - by poorStudent
    Okay one of my homework problems is to take a list of lists and return the car of each sublist as a list. I have it to where I can print out the values, but it's not a list. To be honest, I have no clue how to output lists. Here's what I got: (define (car-print alist) (if (null? alist) (newline) (begin (write (car (car alist))) (display " ") (car-print(cdr alist))))) This is a cheap way to do it, perhaps some help on actually solving this problem would be much appreciated. Not necessarily the full answer but steps to get there. Thanks.

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  • error with Security Exception

    - by Alexander
    I am getting the following error on my page: Security Exception Description: The application attempted to perform an operation not allowed by the security policy. To grant this application the required permission please contact your system administrator or change the application's trust level in the configuration file. The problem is with the following code SmtpClient mailClient = new SmtpClient("smtp.gmail.com", 587); What's weird is that when testing it at my localhost, everything works fine, but when I put it on my 1and1 web host it generates the error above. I contacted their support and here's their answer. We do check the error logs and the operation require a FullTrust environment which currently fall under restriction on .NET Framewor k What should I do?

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  • Getting Unexpected '<' in simple less than greater than comparison

    - by Elizabeth Buckwalter
    I feel very very very silly posting this, but I can't find the answer. I've searched google and here. // originally values in a multi dimensional array, but used simple values // to rule out errors. $somenumber = 1; $anotherone=5; if ($somenumber < $res->shares < $anotherone ) { blah } Get the error: Parse error: syntax error, unexpected '<' Seems pretty simple and straight forward. Is there some weird thing that you can't compare multiple values? Do I have to explicitly type? It works in Perl. Which of course means that it has to work like this in everything else. ;)

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  • Querying a Single Column with LINQ

    - by Hossein Margani
    Hi Every one! I want to fetch array of values of a single column in a table, for example, I have a table named Customer(ID,Name), and want to fetch ids of all customers. my query in LINQ is: var ids = db.Customers.Select(c=>c.ID).ToList(); The answer of this query is correct, but I ran SQL Server Profiler, and saw the query which was like this: SELECT [t0].[ID], [t0].[Name] FROM [dbo].[Customer] AS [t0] I understood that LINQ selects all columns and then creates the integer array of ID fields. How can I write a LINQ query which generates this query in SQL Server: SELECT [t0].[ID] FROM [dbo].[Customer] AS [t0] Thank you.

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  • JSF Deferred EL conditional syntax problem

    - by Mark Lewis
    Hello I can't find any resources which can answer why I'm getting an error with this: oncomplete="#{MyBacking.oError ? #{rich:component('oErrorPanel')}.show() : return false;}" in a richfaces a4j:commandButton. oError is referring to a method in my bean called isOError. I'm getting the error SEVERE: Servlet.service() for servlet Faces Servlet threw exception org.apache.el.parser.ParseException: Encountered " "?" "? "" at line 1, column 30. Was expecting one of: "}" ... "." ... ... I want to say 'if a method returns true, show modal panel A otherwise false'. Any help much appreciated.

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  • Ninject with MembershipProvider | RoleProvider

    - by DVark
    I'm using ninject as my IoC and I wrote a role provider as follows: public class BasicRoleProvider : RoleProvider { private IAuthenticationService authenticationService; public BasicRoleProvider(IAuthenticationService authenticationService) { if (authenticationService == null) throw new ArgumentNullException("authenticationService"); this.authenticationService = authenticationService; } /* Other methods here */ } I read that Provider classes get instantiated before ninject gets to inject the instance. How do I go around this? I currently have this ninject code: Bind<RoleProvider>().To<BasicRoleProvider>().InRequestScope(); From this answer here. If you mark your dependencies with [Inject] for your properties in your provider class, you can call kernel.Inject(MemberShip.Provider) - this will assign all dependencies to your properties. I do not understand this.

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  • How do people prove the correctness of Computer Vision methods?

    - by solvingPuzzles
    I'd like to pose a few abstract questions about computer vision research. I haven't quite been able to answer these questions by searching the web and reading papers. How does someone know whether a computer vision algorithm is correct? How do we define "correct" in the context of computer vision? Do formal proofs play a role in understanding the correctness of computer vision algorithms? A bit of background: I'm about to start my PhD in Computer Science. I enjoy designing fast parallel algorithms and proving the correctness of these algorithms. I've also used OpenCV from some class projects, though I don't have much formal training in computer vision. I've been approached by a potential thesis advisor who works on designing faster and more scalable algorithms for computer vision (e.g. fast image segmentation). I'm trying to understand the common practices in solving computer vision problems.

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