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• Are any major applications using Entity Framework?

  - by jkohlhepp

  I'm investigating the use of Entity Framework in an upcoming project, but I have some concerns about the maturity and market adoption of the product. Are there any high profile web sites or applications using the product? Are there any significant open source projects that have picked it up?

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• Free launcher or bootstrapper checks .net framework installed or OS Version

  - by Shurup

  I look for a free launcher or bootstrapper that checks whether the .net framework is installed, and starts my app1.exe, or app2.exe if not. Alternatively a louncher that checks for the OS version.

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• Updating with Related Entities - Entity Framework v4

  - by Vincent BOUZON

  Hi, I use Entity Framework V4 and i want to update Customer who have Visits. My code : EntityKey key; object originalItem; key = this._modelContainer.CreateEntityKey("Customers", customer); if (this._modelContainer.TryGetObjectByKey(key, out originalItem)) { this._modelContainer.ApplyCurrentValues(key.EntitySetName, customer); } this._modelContainer.SaveChanges(); It works for Scalar Property only. The customers.Visits collection is not updated. Best Regards :)

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• Sync Framework: Can I syncronise Stored Procedure

  - by Belliez

  Does the sync framework allow me to synchronise (download only) the Store Procedures on a sql server 2008 server with the Stored procedures on the SQL Server 2008 client? i.e. overwrite the SP on the client when the server SP's have been modifed or new ones created? Thanks

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• Generate Enum from Values present in a table using ADO.NET Entity framework

  - by Vinni

  My requirement is to create an Enum based on values present in a table from DB. I am using ADO.NET Entity Framework model (.edmx file), Can any one of you help me out... Thanks, Vinni

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• .net Compact Framework 4.0

  - by Daniel

  Will their be a new release of the compact framework with VS2010 and .net 4.0 and if so what new features will it include? WPF? linq to SQL? etc

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• installing lots of perl modules

  - by Colin Pickard

  Hi, I've been landed with the job of documenting how to install a very complicated application onto a clean server. Part of the application requires a lot of perl scripts, each of which seem to require lots of different perl modules. I don't know much about perl, and I only know one way to install the required modules. This means my documentation now looks this: Type each of these commands and accept all the defaults: sudo perl -MCPAN -e 'install JSON' sudo perl -MCPAN -e 'install Date::Simple' sudo perl -MCPAN -e 'install Log::Log4perl' sudo perl -MCPAN -e 'install Email::Simple' (.... continues for 2 more pages... ) Is there any way I can do all this one line like I can with aptitude i.e. Type the following command and go get a coffee: sudo aptitude install openssh-server libapache2-mod-perl2 build-essential ... Thank you (on behalf of the long suffering people who will be reading my document) EDIT: The best way to do this is to use the packaged versions. For the modules which were not packaged for Ubuntu 10.10 I ended up with a little perl script which I found here ) #!/usr/bin/perl -w use CPANPLUS; use strict; CPANPLUS::Backend->new( conf => { prereqs => 1 } )->install( modules => [ qw( Date::Simple File::Slurp LWP::Simple MIME::Base64 MIME::Parser MIME::QuotedPrint ) ] ); This means I can put a nice one liner in my document: sudo perl installmodules.pl

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• Locking a table with a select in Entity Framework

  - by Manuel Felício

  I need to be able to do select * from myTable with (xlock,holdlock) from Entity Framework. Is this possible? I've opened a TransactionScope with the Serializable isolation level but my selects are not locking the tables. I'd like them to lock until I complete the transaction scope.

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• Credit card validation and parsing utilities for .Net Compact framework 3.5

  - by Sundar

  I have payment gateway integration in my application developed using .Net Compact framework 3.5. Is there any "Credit card validation and parsing utilities" that i can use in my application or is there any class that i can use to identify the type of the card?

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• Creating Composite primary keys in a many-to-many relationship in Entity Framework

  - by kingrichard2005

  Hello, I have two tables that are connected via a join table in a many-to-many relationship in the Entity Framework. I need to add a composite primary key in the join table for the two columns that are related to the joined tables via standard foreign keys but I'm sure how to do that.

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• DTO and Self Tracking Entities pattern in the entity framework

  - by kathy

  Hello, In What scenario that I have to use DTO's pattern in the entity framework the and not the Self Tracking Entities pattern? Can I start with Self Tracking Entities because it's easier to develop and then add DTO's in the next Phase ??? As always, your advice is greatly appreciated...

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• Select base class in Entity Framework

  - by fishiefishie

  Suppose I have table Person table Employee, which inherits Person. I want to get a list of Person only. How do you get entity framework to do that without joining the Employee table?

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• ASP.NET MVC project samples with entity framework

  - by Shawn Mclean

  Hello, is there any sample projects that I can download that shows alot of interaction with the entity framework and the mvc pattern of asp.net? It should have stuff such as: CRUD CRUD on child records Relationships Inheritance Thank you.

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• PHP: ORM framework or library that I can use with my database table structure

  - by Thomas

  Hi, I was using KohanaPHP ORM but I can't use it with my database table structure. So, I need a framework or library ORM to use with it. With Kohana I need to follow a naming convention. I can't use a field name (foreign key) like 'idUnidadeMedida'. Are there any suggestions? Thank you.

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• 2-Way databinding with Entity Framework and WPF DataGrid

  - by Mike Gates

  I'm having trouble adding an Entity Framework entity to a ObjectContext's EntitySet automatically using the WPF 4.0 DataGrid's add functionality. Here's the setup: DataGrid--BoundTo--ListCollectionView--BoundTo--EntitySet When I interactively add a row to the DataGrid, the EntitySet does not have a new entity added to it. Updating the row's cell data does in fact update the bound entity's properties, however. Any idea what I could be doing wrong?

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• Entity Framework: Generating database from classes

  - by Anonymous Coward

  Hi Everyone Is it possible to create the database from the classes with entity framework 4.0? I found many tutorials on how to do it the other way round. But since we have already implemented and tested all classes of the domain we'd like to avoid changing them to much. If I used the wrong keywords in Google I'd appreciate you could post a link. Cheers, CA

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• complex type in entity framework

  - by kathy

  Hi,,, When I need to use the complex type in entity framework?? or in other words what is the complex type used for ? Thanks

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• Simple MVC Framework for ASP.net?

  - by pho3nix

  Hi, I need a simple MVC framework, without jQuery extensions, hibernate, loggers, etc.. Only Model-View-Controller functions. Anyone have an idea where I can find one?

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• The entity framework and database agnostic programming, possibilities?

  - by Theo

  We want to use the Entity Framework (.NET 4.0) to build applications that can deal with Sql Server, MySQL and Oracle. And maybe Sqlite too. It should be easy to switch the db vendor by some setting in a config file. Is this possible? I prefer real life examples! What kind of providers did you use?

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• Asp.net mvc, entity framework, Poco - Architecture

  - by user1576228

  I have a "small" enterprise application, aspnet mvc 3 + entity framework with POCO entity and repository pattern. I structured the solution in 4 projects: POCO entities Domain model Services web application When the application performs a query on the database, use one of the services provided, the service uses the repository and the small classes, as a result I have some dynamic proxy objects that I would like to convert in my domain entities, before using them in mvc views, but I do not know how. Dovrebber be set as the translator? This approach is reasonable?

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• Using Entity Framework (code first) migrations in production

  - by devdigital

  I'm just looking into using EF migrations for our project, and in particular for performing schema changes in production between releases. I can see that generating SQL (delta) script files is an option, but is there no way of running the migrations programmatically on app start up? Will I instead need to add each delta script to the solution and write my own framework to apply them in order (from the current version to the latest) on bootstrap?

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• default value support for Entity Framework object construction to avoid having to set this column pa

  - by Greg

  Hi, In entity framework is there a way to have a default value for a column such that Linq to Entity won't require this parameter when constructing a new object? For example I've marked on column in the EF designer with a default value (I typed in "All" as it was a string). But if I try to construct a new record and not specify this parameter I still get a FOREIGN KEY constraint exception. The INSERT statement conflicted with the FOREIGN KEY constraint "FK_FunctionalityTypeInterfaceRelationship"

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• How to delete an object by id with entity framework

  - by Jeff

  It seems to me that I have to retrieve an object before I delete it with entity framework like below var customer = context.Customers.First(c => c.Id = 1); context.DeleteObject(customer); context.Savechanges(); So I need to hit database twice. Is there a easier way? Thanks

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• Entity Framework Polymorphism

  - by Chubbs

  Hey guys, I wanted some help with trying to implement a simple polymorphic relationship using Entity Framework. An example of a relationship I would like to implement: Comment table ItemType ('Video', 'User') ItemID Body Video has many Comments User has many Comments No idea the best way to do this, I come from a Ruby on Rails way of thinking.

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• Compact Framework targeting

  - by En

  If a smart device project is set to target CF 2.0, Windows CE 5.0, should this same application run on Windows Mobile 6 with CF 3.5 installed? I was able to install it (the CF 2 app), but when running received an error stating that the assemblies could not be loaded and that CF might not be installed. This has led me to belive that smart device projects wil ONLY work on the framework they target, not any versions lower or greater. Any help would be greatly appreciated.

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