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• is there a performance different between passing something into viewdata compared to a view model

  - by ooo

  in asp.net mvc , if i shove a dictionary or an array of objects in ViewData and read that in my view compared to creating a view model class that has that same data structure, is there a performance difference or other consideration or should i expect the same response time?

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• some qeustions about Vector in STL

  - by skydoor

  I have some questions about vector in STL to clarify..... 1 Where are the objects in vector allocated? heap? 2 does vector have boundary check? If the index out of the boundary, what error will happen? 3 Why array is faster than vector? 4 Is there any case in which vector is not applicable but array is a must?

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• How to do a one to many relationship in UML with Visual Studio 2010?

  - by devoured elysium

  I am trying to do something of the form: Is it possible at all to do it? I want to have a collection of Food objects in my MealEvent class. Thanks!

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• modal forms and shared data,

  - by Tumble

  I've written a couple of c# forms applications which use a lot of the same data/objects which would better be combined. I realise I could use modal forms to launch each of these but where should I state .dll's and other resources, on the parent form? or on each other form where necessary?

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• Make dialogs compatible with "large fonts".

  - by Narcís Calvet

  Which do you think are best practices for making a windows dialog compatible both with standard fonts (96 dpi) and "large fonts" setting (120 dpi) so that objects don't overlap or get cut off? BTW: Just in case it's relevant, I'm interested in doing this for Delphi dialogs. Thanks in advance!

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• What is the best way to link your application to Swing GUI?

  - by Java Coder

  If I have Swing GUI class and application, how should I manage communication between these objects? Should I pass GUI object link to app or app link to GUI? Example: public class App{ public App() { GUI gui = new GUI(this) } } or public GUI{ public GUI() { App gui = new App(this) } }

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• Django filter by hour

  - by DJPy

  I've found that link: http://code.djangoproject.com/attachment/ticket/8424/time_filters.diff and changed my django 1.2 files by adding taht what you can see there. But now, when I'm trying to write Entry.objects.filter(pub_date__hour = x) - the result is following error: Field has invalid lookup: hour What should I do else, to make it work? (sorry for my english)

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• Grails many to many using a third 'join' class

  - by andy mccullough

  I read that a m:m relationship often means there is a third class that isn't yet required. So I have m:m on User and Project, and I created a third domain class, ProjectMembership The three domains are as follows (minimized for illustration purposes): User class User { String name static hasMany = [projectMemberships : ProjectMembership] } Project Membership class ProjectMembership { static constraints = { } static belongsTo = [user:User, project:Project] } Project: class Project { String name static hasMany = [projectMemberships : ProjectMembership] static constraints = { } } If I have the ID of the user, how can I get a list of Project objects that they are assigned to?

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• Java: how to clone ArrayList but also clone its items?

  - by palig

  Hello, How can I clone Array List but also clone its items in Java 1.5? For example I have: ArrayList<Dog> dogs = getDogs(); ArrayList<Dog> clonedList = ....something to do with dogs.... And I would expect that objects in clonedList are not the same as in dogs list. Thanks for any answer!

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• What type is System.Byte[*]

  - by Jimbo

  I'm being passed an object that returns "System.Byte[*]" when converted to string. This apparently isn't a standard one dimensional array of Byte objects ("System.Byte[]"), so what is it?

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• How can you databind a single object in .NET ?

  - by Tomas Pajonk

  I would like to use a component that exposes the datasource property, but instead of supplying the datasource with whole list of objects, I would like to use only simple object. Is there any way to do this ? The mentioned component is DevExpress.XtraDataLayout.DataLayoutControl - this is fairly irrelevant to the question though.

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• The type of the argument object [type] is not primitive.

  - by Abstract

  I'm trying to create a simple Guestbook web service using ASP.NET WebServices. When trying to serialize a list of objects, I get the following exception: System.InvalidOperationException: The type of the argument object 'GuestBookService.GuestBookEntry' is not primitive. How can I fix this error?

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• How do I declare a constructor for an 'object' class type in Scala? I.e., a one time operation for the singleton.

  - by Zack

  I know that objects are treated pretty much like singletons in scala. However, I have been unable to find an elegant way to specify default behavior on initial instantiation. I can accomplish this by just putting code into the body of the object declaration but this seems overly hacky. Using an apply doesn't really work because it can be called multiple times and doesn't really make sense for this use case. Any ideas on how to do this?

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• mysql_data_seek pdo equivalent

  - by Lucia

  Hi, Which is the equivalent of mysql_data_seek using pdo objects? Can you give me an example? Thanks!

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• A cross-platform application WPF, ASP.NET, Silverlight, WP7, XAML

  - by J. Lennon

  Considering the fact that all applications will interact with the web project (which will use the cloud or web services).. Is there any way to share my class models between applications? If yes, what is the best way to do it? About sending / receiving data from the Webservice, serialize and deserialize, how can I do this in a simple way without having to manually populate the objects? Any information about this applications would be really helpful!

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• Flex Button Size Setting For Implementing Multilanguage

  - by user961496

  I'm creating a flex app with multilanguage support. But there's a problem with the design when I try to implement multilanguage support. For example : In Chinese : ?? In English : Good Morning The button size is not enough when I change the language to English. Although I set the button width with dynamic size, but the button will closing the objects around it Code is here http://pastebin.com/7fDB2VU2

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• Will the memory rise if I loads a same URL for 1000 times in Adobe AIR?

  - by Yinan

  Hi, Here is the case: I have created a test application which simply loops to load a same url for 1000 times by using HTMLLoader class from Adobe AIR. What I found is that the memory of this app keeps rising. So is this expected? I mean it's the same URL although it get loaded for 1000 times. Does the AVM create 1000 objects behind the scene?

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• how to overload the += operator with the operands of different types (if possible)

  - by Veer

  Hi, Instead of having an add() method in the repository, I would like to overload the += operator so that the expression _repository += myModel; will insert myModel into the database(after i submit changes) I know that the objects of different type cannot be used in operator overloading. Still want to know if there is some alternate ways to accomplish this Any help?

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• @Transient property should be added in equals/hashCode/toString

  - by Castanho

  Hi there, this is a quick question........... In objects from JPA that is mapping a table, I have some properties that is @Transient, shall I add this properties into equals/hashCode/toString methods? My first thought is NO but.... I don't know why. Tips? Ideas? Explanations? Thanks in advance

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• If you stick to standard coding in .NET, is there reason to manually invoke the GC or run finalizers

  - by Matt

  If you stick to managed code and standard coding (nothing that does unconventional things withe CLR) in .NET, is there any reason to manually invoke the GC or request to run finalizers on unreferenced objects? The reason I ask is thaty I have an app that grows huge in Working Memory set. I'm wondering if calling System.GC.Collect(); and System.GC.RunFinalizers(); would help, and if it would force anything that wouldn't be done by the CLR normally anyways.

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• If I never ever use HashSet, should I still implement GetHashCode?

  - by Dimitri C.

  I never need to store objects in a hash table. The reason is twofold: coming up with a good hash function is difficult and error prone. an AVL tree is almost always fast enough, and it merely requires a strict order predicate, which is much easier to implement. The Equals() operation on the other hand is a very frequently used function. Therefore I wonder whether it is necessary to implement GetHashCode (which I never need) when implementing the Equals function (which I often need)?

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• Linq grouping question

  - by Mike C.

  I have the following objects in a collection: Transaction: Type = "Widget" Date = "3/1/2011" Name = "Foo" Transaction: Type = "Widget" Date = "3/4/2011" Name = "Bar" Transaction: Type = "Gadget" Date = "3/2/2011" Name = "Baz" Transaction: Type = "Gizmo" Date = "3/1/2011" Name = "Who" Transaction: Type = "Gizmo" Date = "3/2/2011" Name = "What" Transaction: Type = "Gizmo" Date = "3/6/2011" Name = "When" I want to end up with the following, grouped by Type. If there are multiple, return only the first one chronologically by date. Transaction: Type = "Widget" Date = "3/1/2011" Name = "Foo" Transaction: Type = "Gadget" Date = "3/2/2011" Name = "Baz" Transaction: Type = "Gizmo" Date = "3/1/2011" Name = "Who"

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• I need a Java code that takes tab delimited info from a file to a displayed table and updates the fi

  - by Rin

  I need a Java code that takes tab delimited info from a file to a displayed table. The user should be able to click a row and update it, this is followed by updating the file. The code should use Swing objects.

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• Alternatives of Datatable

  - by mavera

  In my web application, I have a dynamic query that returns huge data to datatable, and this query is often recalled with different parameters. So database is exhausted. I want to get all record with no parameters to an object, and perform queries (may be with linq) on this object. So database will not be exthausted. Which objects can be used instead of datatable?

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• Persisting and applying Linq Query to collection

  - by MattiasK

  I have a scenario where I would want a plugin to construct a LINQ (to objects) query, send it across an appdomain and then apply and run it against a collection of my choosing Is it possible, how? If not, perhaps I could send a whole method (interface) across the appdomain and run it against the data on the appside? The main thing is that I want the data to reside in the CurrentDomain and the logic for operating on it in the plugin so I don't have to send the data across the boundary...

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