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• Passing object to the constuctor of Entity Class with adding new item from DataForm!

  - by Muhammad Jamal Shaikh

  hi, here is my case , i want to assign roles to my employees. All Roles are need to be sent to the constructor of the employee class when a user clicks + sign on the top of dataform(Silverlight toolkit 2009). if i put a break point on the default constructor , it gets hit. so i just want the dataform to send this collection when ever it creates new employee. thanks Jamal.

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• Is there a LINQ equivalent of string.Join(string, string[])

  - by mdresser

  Is there any way to convert a collection of objects into a single new object using LINQ? I want to use this within another LINQ to SQL expression.

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• Conditional Styling In Silverlight?

  - by DeanMc

  Hi, While I'm fine with standard control styling in silverlight I have recently began using more dynamic methods of fetching data to be displayed in items controls. One of the controls I am reworking is a collection of links. The issue I am having is that each link is coloured differently when moused over. One red, one blue, one green, etc. Is there a way to style these items without sacrificing the dynamics of using an items control with a data template?

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• ASP.NET MVC form GET passing array

  - by creativeincode

  I have a form with a collection of checkbox's for a refine search function on my website. I am trying to pass an array in a form GET but the URL looks like: /search?filter=foo&filter=bar&filter=green Is there a better way to pass this in MVC? Possible like /search?filter=foo,bar,green Thanks in advance.

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• Sources of inspiration for navigation breadcrumbs

  - by Charles Roper

  I'm looking for sources of inspiration and/or design patterns for navigation 'breadcrumbs'. So far I have found the breadcrumb collection on Pattern Tap. Does anyone know of any other sources?

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• LVM_INSERTITEM very slow in vista/W7

  - by nikos

  in a large listview control collection (say 5000 items), adding a SINGLE extra item can take 10+ seconds in windows vista/7, and that's just the LVM_INSERTITEM message handling it looks that it only affects LVS_ICON, LVS_REPORT and LVS_LIST are still very fast can anybody confirm this? the same code on windows XP with similar listview window styles adds an extra item instantly thanks nikos

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• JPA Secondary Table Issue

  - by Smithers

  I have a three tables: User, Course, and Test. Course has a User foreign key and Test has a Course foreign key. I am having trouble mapping the Test collection for each User since I need an intermediary step from User - Course - Test. I am trying to use a SecondaryTable since the User key for the Test is its associated Course row. Am I on the right track using SecondaryTable or is there a way to use a JoinTable without the inverseJoinColumn?

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• How to generate Markov Chain in C#

  - by Nabeel Bukhari

  I want to create this Markov Chain in C#. I need to know if there is any other structure other than adjacency list which can work better in this situation. Also how can I use the existing .Net collection type to implement this.

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• flex arraycollection - can i specify the size for an arraycollection?

  - by crazy horse

  Context: I use an ArrayCollection object as follows: 1) Number of elements is fixed. 2) Elements are inserted at a given position, based on some order. Question: Can I set the max size of the ArrayCollection? Will fixing the size improve the performance, as elements keep getting inserted into this collection? -Thank You

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• C# tableadapter add/update/delete

  - by ChrisMuench

  I'm using the table adapter in C# where visual studio generates the code for you. I have inserts and updates working just fine using the following code. However when trying to delete using the .update it gives me the following error. Update requires a valid DeleteCommand when passed DataRow collection with deleted rows. this.workersTableAdapter.Update(this.nursery_dbDataSet_workers.workers);

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• Are there any free openCV classifier libraries?

  - by Khorkrak

  Been tinkering with openCV in python. The face detection demo is impressive. Are there any free collection of Haar classifiers aside from the face, eyes and full body ones?

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• Can I use the AJAX Autocomplete extender *without* a webservice?

  - by David

  Using ASP.NET 3.5 with VB codebehind. I don't want to use a webservice to populate an autocomplete extender on a textbox. In this case, it's where the user is entering email addresses and I don't want to make a trip to the database every single time. I'd much rather keep a collection in session state and 'bind' the autocomplete to that. Is it possible to set ServicePath and/or ServiceMethod to something in the codebehind as opposed to a webservice?

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• How do I get row count using the NHibernate QueryOver api?

  - by Jim Geurts

  I'm using the QueryOver api that is part of NHibernate 3.x. I would like to get a row count, but the method I'm using returns all objects and then gets the count of the collection. Is there a way to just return an integer/long value of the number of rows? I'm currently using: _session.QueryOver<MyObject>().Future().Count()

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• Programming interface

  - by user309010

  Hi All, I currently building a data collection system [mainly "EFM" - enterprise feed back management] using .NET. I was wondering if there is a possibility to provide the user to script and manipulate the objects - like a programming language but with minor functionalities Thanks

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• ToolStripMenuItem not closing when a child ToolStripMenuItem is Clicked in a C# WinForm

  - by Poco

  Is there a way to have a ToolStripMenuItem not closing when I click a child control (in its DropDrowItems Collection)? In my case, I have some ToolStripMenuItems that work as a check box. Actually, I implemented a radio behavior in some ToolStripMenuItems using their Check property. But I don't want the menu closing when I click any of them, because they aren't an action, they represent just options in the menu item. Is that possible?

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• Unmodifiable NavigableSet/NavigableMap in Java?

  - by Greg Mattes

  java.util.Collections has several unmodifiable methods that provide unmodifiable collection views by wrapping collections in decorators that prohibit mutation operations. Java 6 added support for java.util.NavigableSet and java.util.NavigableMap. I'd like to be able to have unmodifiable NavigableSets and NavigableMaps, but java.util.Collections#unmodifiableSortedSet(SortedSet) and java.util.Collections#unmodifiableSortedMap(SortedMap) are not sufficient because they do not support the operations that are particular to NavigableSet and NavigableMap. Are there de-facto implementations for unmodifiableNavigableSet and unmodifiableNavigableMap?

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• Issue with deserialization in .Net

  - by Punit Singhi

  I have a class called Test which has four public properties and one of them is static. the problem is after deserialization the static property contains null value. i have debugged the code and found that at server side it contains the value which is a collection , but at client side it becomes null after deserialization. i know static members doesn't serialize and deserialize so obviously it shud contain the value.

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• How to get Class type

  - by Tomáš

  Hi gurus How to determine Class type of Object in collection? class Human{...} class Man extends Human{...} class Women extends Human{...} def humans = Human.findAll() humans.each(){ human -> // ??? , it is not work if ( human instanceof Man ) { println "Man" } if ( human instanceof Woman ) { println "Woman" } } Thanks a lot, Tom

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• How to report DataContext.SubmitChanges() progress with LINQ2SQL

  - by kzen

  If there is a foreach loop that contains DataContext.Customer.InsertOnSubmit(cust) for example: foreach (Object obj in collection) { Customer cust = new Customer { Id = obj.Id, Name = obj.Name ... }; DataContext.Customer.InsertOnSubmit(cust); } And outside of the loop there is a call to: DataContext.SubmittChanges(); Is there a way to obtain the SubmittChanges progress in order to report the progress back to the user (or a different approach without moving the SubmittChanges into the loop)?

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• How to make inner UL list not inherit from outer UL List in CSS

  - by Minghui Yu

  For the HTML List below, I need to add a background image only to the LI of the outer list. (aka the one with class "menu-mlid-594 dhtml-menu expanded start-collapsed") HTML codes are: <li class="menu-mlid-594 dhtml-menu expanded start-collapsed ">About the Collection<ul class="menu"><li class="leaf first dhtml-menu ">By Theme</li><li class="leaf last dhtml-menu ">By Individual</li></ul></li> How can I do that? Thanks.

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• How would I create a silverlight control for tagging content similar to StackOverflow?

  - by Dan Ryan

  I am new to Silverlight. How would I go about creating a control for users to tag content. I would like it to work like it does it StackOverflow i.e. Autocomplete and when you press space it inserts the tag in a box with a remove button. I want the control to be bindable to a collection of strings. If someone can just point me in the right direction to get me started I would be very grateful.

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• What is the best algorithm for an overridden System.Object.GetHashCode?

  - by bitbonk

  In .NET System.Object.GetHashCode method is use in a lot of places throughout the .NET base class libraries. Especially when finding items in a collection fast or to determine equality. Is there a standard algorithm/ best practise on how to implement the GetHashCode override for my custom classes so I don't degrate performance?

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• How to get relative source of item in ItemTemplate

  - by plotnick

  I have a ListBox with specified ItemTemplate. And the ItemTemplate contain itself ListView and I want to display in that ListView a collection, which is actually a property of the item of the ListBox. Could you show me how to do Binding. I'm thinking about RelativeSource thing, but I don't know what correct syntax would look like...

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• Irregularities (Catches) In Programming Languages.

  - by Draco Ater

  There is a collection of "very special irregularities, inconstancies and just plain painfully unintuitive moments" concerning javascript on wtfjs. Do you know some other collections of such unintuitive moments for other languages?

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• Are there public domain collections of translations for strings commonly used in software applicatio

  - by Malcolm

  It seems to me that there must be some public domain collection of gettext compatible PO files that we could search for 1:1 or fuzzy translations for strings commonly used in software applications? Is there a technical and copyright friendly way to query services like Google's Translator Toolkit, LaunchPad, Mygengo, etc. to find translations for common strings? Thank you, Malcolm

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