Creating Model Classes with the Entity Frameworkhttp://asp.netWed, 16 Feb 2011 21:37:04 GMTumbracoComments for Creating Model Classes with the Entity FrameworkenComment Posted by anashttp://asp.net/mvc/tutorials/older-versions/models-(data)/creating-model-classes-with-the-entity-framework-csThu, 06 May 2010 10:43:35 GMT00000000-0000-0000-000000008900Thank you !

]]>Comment Posted by flyinhawaiian84http://asp.net/mvc/tutorials/older-versions/models-(data)/creating-model-classes-with-the-entity-framework-csThu, 15 Jul 2010 10:32:38 GMT00000000-0000-0000-000000009463Seems to be missing a step. Figure 8 shows the Add view but where's the step to create the view?

]]>Comment Posted by flyinhawaiian84http://asp.net/mvc/tutorials/older-versions/models-(data)/creating-model-classes-with-the-entity-framework-csFri, 16 Jul 2010 10:36:51 GMT00000000-0000-0000-000000009476When the table and columns are being created, Id column must be adjusted. Under column properties, Identity Specification, set "Is Identity" to Yes. Set "Identity Increment" to 1. Set Identity Seed to 1. If you don't do this, you'll get duplicate key error because the id will default to zero and there's no way to change it.

]]>Comment Posted by flyinhawaiian84http://asp.net/mvc/tutorials/older-versions/models-(data)/creating-model-classes-with-the-entity-framework-csFri, 16 Jul 2010 10:42:03 GMT00000000-0000-0000-000000009477Note for VS 2010. When appropriate, visual studio 2010 will attempt to rename plural names to singular names but sometimes makes mistakes. So, "Movies" will be automatically renamed to "Movy" when it really should be "Movie".

]]>Comment Posted by kaansengulhttp://asp.net/mvc/tutorials/older-versions/models-(data)/creating-model-classes-with-the-entity-framework-csWed, 04 Aug 2010 08:30:31 GMT00000000-0000-0000-000000009742Hi!

Here, Inherits="System.Web.Mvc.ViewPage<List<MovieEntityApp.Models.Movie>>", how "Movie" get in the "Models"? When I created the entity "Movie" it stored in the root, "MovieEntityApp"

]]>Comment Posted by kelasingshttp://asp.net/mvc/tutorials/older-versions/models-(data)/creating-model-classes-with-the-entity-framework-csFri, 06 Aug 2010 11:54:09 GMT00000000-0000-0000-000000009775Why do all of the examples show one table? I understand that this is a tutorial, but showing AT LEAST two tables with a foreign key relationship would make for a better example for those who are trying to use Entity Framwork in the real world.

]]>Comment Posted by cgiustinonihttp://asp.net/mvc/tutorials/older-versions/models-(data)/creating-model-classes-with-the-entity-framework-csTue, 10 Aug 2010 15:00:15 GMT00000000-0000-0000-000000009821MoviesDBEntities _db;

public HomeController()

{

_db = new MoviesDBEntities();

}

public ActionResult Index()

{

ViewData.Model = _db.MovieSet.ToList();

return View();

}

the ADO.NET Entity Model wizard is not creating a property .MovieSet, does anyone have any ideas how and why

]]>Comment Posted by vrpmcahttp://asp.net/mvc/tutorials/older-versions/models-(data)/creating-model-classes-with-the-entity-framework-csThu, 09 Sep 2010 07:12:20 GMT00000000-0000-0000-0000000010174Hi cgiustinoni,

"MovieSet" is the entity name, not a common property.

]]>Comment Posted by daywatchhttp://asp.net/mvc/tutorials/older-versions/models-(data)/creating-model-classes-with-the-entity-framework-csThu, 23 Sep 2010 13:05:32 GMT00000000-0000-0000-0000000010353Things in listing 2 does not work. This makes the whole doc un-usable!

]]>Comment Posted by mrrgdhttp://asp.net/mvc/tutorials/older-versions/models-(data)/creating-model-classes-with-the-entity-framework-csFri, 24 Sep 2010 05:47:24 GMT00000000-0000-0000-0000000010365I have to agree with kelsings. Why only one table. I have just started using Entity Framework 4 (EF4) with MVC2 with a fairly large database. My biggest problem is finding information about how to use EF4 with MVC2 without using LINQ, POCO, Repositories, etc. It would be nice to have some examples or demo's of MVC2 controller methods in C# that will pull the data directly from multiple EF created models and specific attributes from multiple tables/entities. E.g. If I have a an trip planning application using MVC2, one may need to link EF models/entities (or specific attributes of the models) representing the tbl_tour, tbl_client, tbl_loging, tbl_transport, tbl_coordinator, etc.

Thanks for the demo. I believe it needs to be expanded to provide a more useful examples of using EF4 as the model in a MVC2 application. I would also update the tutorial to use VS2010. Examples of using EF4 and MVC2 hard to find so your efforts are appreciated.

]]>Comment Posted by alcsharphttp://asp.net/mvc/tutorials/older-versions/models-(data)/creating-model-classes-with-the-entity-framework-csMon, 04 Oct 2010 10:20:14 GMT00000000-0000-0000-0000000010490All the examples I've seen with Entity Framework and MVC create the Entity Models in the MVC project. A real world application should separate these into a different project. Unfortunately when you create the entity model in a different project and then try to use it in a controller you'll get an ugly run-time error about missing metadata..very frustrating. I don't ship software assuming the user is always going to take a single path so I don't know why that's acceptable to do with Visual Studio.

]]>Comment Posted by namratamhttp://asp.net/mvc/tutorials/older-versions/models-(data)/creating-model-classes-with-the-entity-framework-csMon, 11 Oct 2010 06:51:31 GMT00000000-0000-0000-0000000010575really good

]]>Comment Posted by squirrelNuthttp://asp.net/mvc/tutorials/older-versions/models-(data)/creating-model-classes-with-the-entity-framework-csFri, 29 Oct 2010 17:22:16 GMT00000000-0000-0000-0000000010765OK, I'm missing something...when I clicked on the "Add Movie" link I get the error that Add.aspx or Add.ascx can not be found. Makes sense to me as there's nothing in this tutorial to build it. What do I do wrong?

]]>Comment Posted by rockin2009http://asp.net/mvc/tutorials/older-versions/models-(data)/creating-model-classes-with-the-entity-framework-csSat, 30 Oct 2010 04:38:11 GMT00000000-0000-0000-0000000010768MoviesDBEntities _db;

public HomeController()

{

_db = new MoviesDBEntities();

}

public ActionResult Index()

{

ViewData.Model = _db.MovieSet.ToList();

return View();

}

am not gettin db. MovieSet oly Movies am gettin

]]>Comment Posted by rockin2009http://asp.net/mvc/tutorials/older-versions/models-(data)/creating-model-classes-with-the-entity-framework-csSat, 30 Oct 2010 04:46:38 GMT00000000-0000-0000-0000000010769what is this MovieSet from where its coming..

]]>Comment Posted by jcmcbethhttp://asp.net/mvc/tutorials/older-versions/models-(data)/creating-model-classes-with-the-entity-framework-csThu, 04 Nov 2010 10:15:20 GMT00000000-0000-0000-0000000010820When modifying the name of the table, go to the properties for the movie entity and in the Entity Set Name you should set something like "Movie1". Change this to MovieSet. This is why you can't find MovieSet when trying to use the MovieDbEntities class.

Also, the this goes to show you how to create the controller for the Add action but doesn't show you how to create the view.

To get around this I just right clicked on the Home view directory and created a strongly typed view for the Movie model named Add. I made Id an Identity column in the database and then removed those fields from the Add view.

]]>Comment Posted by jcmcbethhttp://asp.net/mvc/tutorials/older-versions/models-(data)/creating-model-classes-with-the-entity-framework-csThu, 04 Nov 2010 10:33:22 GMT00000000-0000-0000-0000000010821Also when making the Id column an Identity column in the database, make sure you set the StoreGeneratedPattern to "Identity" for the Id column in the entity model as well.

]]>Comment Posted by mejamzhttp://asp.net/mvc/tutorials/older-versions/models-(data)/creating-model-classes-with-the-entity-framework-csTue, 16 Nov 2010 17:47:10 GMT00000000-0000-0000-0000000010967I have tried and tried to follow these video examples and all I get are half shod examples... I am not saying the videos are not good; just that they DO NOT include all steps... some of us are beginners.

When I get thru with listing 2; I am supposed to get Figure 7... I get an ENUM error;

CS1579: foreach statement cannot operate on variables of type 'object' because 'object' does not contain a public definition for 'GetEnumerator'…Seriously???

I am using Web Developer 2010 with MVC 2... why cannot I find videos without gaps of information? All of the MVC 2 Tutorials (Nerd Dinner, Movies, Sport Shop) I have tried to implement with Web Developer 2010 never get finished because I am unable to overcome the LACK of INFORMATION!!!

The purpose of these videos I thought was to EDUCATE us. When I have to spend 30+ minutes researching how to get something done when the video should demonstrate it, I tend to close the project until I can locate further educational materials. I purchased ASP.NET MVC 2 Framework by Steven Sanderson, even that book (as good as it is) is missing MAIN areas of information...

I have basic C++ skills and am learning MVC 2… ever so slowly… I am trying to build three different websites… I know it cannot be as difficult as following these videos… Can you please release a video that INCLUDES ALL the steps?

I am Frustrated

]]>Comment Posted by Rob Graingerhttp://asp.net/mvc/tutorials/older-versions/models-(data)/creating-model-classes-with-the-entity-framework-csThu, 18 Nov 2010 09:10:39 GMT00000000-0000-0000-0000000010989I appreciate people's frustration with the gaps in these tutorials. However, most of these tutorials do include downloadable materials - and generally they should provide sufficient coverage to get the examples working. Hopefully, the learners may gain additional insight through this, although again that's really no excuse for the incompleteness.

]]>Comment Posted by hellokelonhttp://asp.net/mvc/tutorials/older-versions/models-(data)/creating-model-classes-with-the-entity-framework-csMon, 29 Nov 2010 20:44:49 GMT00000000-0000-0000-0000000011078it's easy for a beginner 。 thank you . - -.

]]>Comment Posted by pradip.bobhatehttp://asp.net/mvc/tutorials/older-versions/models-(data)/creating-model-classes-with-the-entity-framework-csThu, 02 Dec 2010 04:53:17 GMT00000000-0000-0000-0000000011111thanks... this is realy usefull

]]>Comment Posted by chrisatpennhttp://asp.net/mvc/tutorials/older-versions/models-(data)/creating-model-classes-with-the-entity-framework-csMon, 20 Dec 2010 01:46:09 GMT00000000-0000-0000-0000000011250I am stuck on the part where I create the controller. When I run the application, I get an error for "Object reference not set to an instance of an object." pointing to the line ViewData.Model = _db.MovieSet.ToList();

Can anyone point me in the direction of where I am doing something wrong?

]]>Comment Posted by Connecthttp://asp.net/mvc/tutorials/older-versions/models-(data)/creating-model-classes-with-the-entity-framework-csThu, 13 Jan 2011 07:46:50 GMT00000000-0000-0000-0000000011500It would be better to use:

var movie = _db.MovieSet.Single(m => m.Id == id);

instead of

var movie = _db.MovieSet.First(m => m.Id == id);

Since the primary key is unique. If it is not you will get an exception using Single() and this should alert you to a problem.

]]>Comment Posted by Connecthttp://asp.net/mvc/tutorials/older-versions/models-(data)/creating-model-classes-with-the-entity-framework-csThu, 13 Jan 2011 07:49:17 GMT00000000-0000-0000-0000000011501However, Single is not supported by LinqToEntities. Why not?

]]>Comment Posted by ocofrehttp://asp.net/mvc/tutorials/older-versions/models-(data)/creating-model-classes-with-the-entity-framework-csWed, 16 Feb 2011 21:37:04 GMT00000000-0000-0000-0000000012102thanks a lot ... this is realy usefull

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