edmx

Edmx file with Visual Studio 11 Beta .Net 4.5

由 ♀尐吖头ヾ 提交于 2019-12-04 13:01:52
I am having trouble creating a new edmx file using Visual Studio 2011 beta Target framework .Net 4.5 Class library project After adding an empty model I get the error below Error 6039: warning CS1701: Assuming assembly reference 'System.Data.Entity, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' matches 'System.Data.Entity, Version=4.2.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089', you may need to supply runtime policy \fjwflppr.0.cs(465,29) : error CS1061: 'System.Data.Metadata.Edm.EdmFunction' does not contain a definition for 'IsComposableAttribute' and no

How to execute raw sql query with in entity framework?

由 我的未来我决定 提交于 2019-12-04 12:22:30
问题 I'm using asp.net mvc 3 with entity framework 5. I have my .edmx file & able to interact with my database using linq or SP, but I want to run some raw sql statement. I'm trying something like this: Using(var ctx=new HREntities()) { ctx.Database.ExecuteSqlCommand("insert into Employees values {0}, {1}", model.EMPLOYEEID, model.EMPLOYEENAME); ctx.SaveChanges(); } is it possible to execute sql query this way? Thanks. 回答1: You can execute the following types of queries: SQL query for entity types

How to join two table from two different edmx using linq query

由 徘徊边缘 提交于 2019-12-04 09:45:03
问题 How to join two table from two different edmx using linq query.. Is there a way to query from 2 different edmx at a time. Thanks. 回答1: Update As per your comment, EF wasn't able to parse a combined Expression tree across 2 different contexts. If the total number of records in the tables is relatively small, or if you can reduce the number of records in the join to a small number of rows (say < 100 each), then you can materialize the data (e.g. .ToList() / .ToArray() / .AsEnumerable() ) from

.NET Data Model is shown as XML and not as Diagram

由 若如初见. 提交于 2019-12-04 07:04:09
That is. I format my computer and install the entire enviroment again, but I can't see the data model diagram. I mean, I open the data model (edmx file) and I see all the DB tables and DB information in an XML file. Not the diagram. I installed vs2010 sp1, net framework 4, micro net framework 4.1, entity framework 4.1 I don't know what I am missing. Can you help me? Without that I cannot update the model. Is seems easy but I don't know how to solve it. If you open the EDMX file in the solution explorer of Visual Studio with "Right-Mouse-Click->Open With..." ... ...what do you see in the

Entity framework error on updating model from database and vice versa

由 杀马特。学长 韩版系。学妹 提交于 2019-12-04 06:40:00
Here is what happens when I try to update model from database with VS express 2013 for the web, EF6.1.1 and .NET framework 4.5. In this case I just added a field to a table in the table definition and updated the database. After that I right click update model from database in the EDMX model view and I get this error message: An exception of type ‘System.runtime.interopServices.COMException’ occurred while attempting to update from the database. The exception message is: ‘A file or folder with the name ‘Model.Context.tt’ already exists. Please give a unique name to the item you are adding or

EF4: Get the linked column names from NavigationProperty of an EDMX

由 戏子无情 提交于 2019-12-04 02:39:51
I am generating POCOs (lets say they are subclasses of MyEntityObject ) by using a T4 template from an EDMX file. I have 3 entities, e.g.: MyTable1 (PrimaryKey: MyTable1ID) MyTable2 (PrimaryKey: MyTable2ID) MyTable3 (PrimaryKey: MyTable3ID) These entities have the following relations: MyTable1.MyTable1ID <=> MyTable2.MyTable1ID (MyTable1ID is the foreign key to MyTable1) MyTable2.MyTable2ID <=> MyTable3.MyTable2ID (MyTable2ID is the foreign key to MyTable2) Or in another view: MyTable1 <= MyTable2 <= MyTable3 I want to extract all foreign key relations NavigationProperty[] foreignKeys = entity

does Visual Studio 2015 include .edmx support?

由 ♀尐吖头ヾ 提交于 2019-12-04 02:30:46
Does Visual Studio 2015 include .edmx support? I have a project that includes an .edmx data model and double-clicking it in VS2015 just opens the XML editor. There's no DbContext generator option in the file->new dialog. During setup of VS2015, go to the advanced options and select Web or Database Development tools. Now the Installers install the EF tools (Designer + templates). If you have VS already installed, to the Programs & features in control panel and modify the currently installed VS2015. You have to select the Microsoft SQL Server Data Tools in the VS2015 setup to get this editor

EDMX .NET 4.5 to 4.0?

由 試著忘記壹切 提交于 2019-12-04 01:40:51
问题 We're using the Entity Framework and we created our EDMX when our project was set to build .NET 4.5. Now we want to switch to .NET 4.0 but when we do, we get compilation errors for the EDMX file. It states the following error: Error 10027: The XML namespace for the conceptual model's schema element is not supported on this project's target framework version. Is there any solution other than recreating the EDMX file? 回答1: Assuming you don't use features that shipped with .NET Framework 4.5

EF 4.3.1 with VS 2011

由 北城以北 提交于 2019-12-03 21:01:55
问题 I need to know if it is possible to start using the latest version of EF (4.3.1) with VS 2011 without having to install these CTP components as stated here. I had these components installed but I removed them and since then I can't add a new edmx file to .net 4 targeted project; it complains about missing reference to System.Data.Entity. Do I need to re install VS 2011? 回答1: After I removed and reinstalled Visual Studio, I still couldn't get red of the error, so I used process monitor to log

Tables don't show when re-adding them to entity-model (edmx)

由 僤鯓⒐⒋嵵緔 提交于 2019-12-03 12:13:27
问题 I have a db with 5 tables. At the beginning, I've added those tables in, but then decided to remove some due to some relationship compile error. Now, when i want to add them back, i'm opening the edmx file -> update model from database... I don't see those tables under add tab, but only under the "refresh" tab. How can i add them back? 回答1: In order to re-add a table to your model you will first need to delete the table from your model. (a list of tables is visible in the [model.Store] tree
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