code-first Questions

1

I am trying to set a static cacheControl on some fields, as done here From my understanding, I need to use a directive, so I used the following nest documentation to declare directives So, I built ...
Shaum asked 20/6, 2022 at 7:15

3

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I try to execute command update-database in PMC and always get this error msg. I know theres another article basically has the same error but i tried every answer and nothing works. System.Argument...
Boley asked 14/9, 2021 at 1:28

12

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I am trying to do this: ALTER TABLE CompanyTransactions DROP COLUMN Created But I get this: Msg 5074, Level 16, State 1, Line 2 The object 'DF__CompanyTr__Creat__0CDAE408' is dependent on co...
Marinemarinelli asked 21/4, 2017 at 18:11

3

I am using Entity-Framework in a Winforms application. The application connects to MSSQLServer and everything works fine. Then I detach the database and copy the .mdf file to the app folder and cha...
Nagey asked 11/12, 2018 at 10:15

30

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I use code-first in my project and deploy on host but I get error CREATE DATABASE permission denied in database 'master'. This is my connection string: <add name="DefaultConnection" conn...
Ashok asked 27/6, 2012 at 17:34

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I have a model class named Foo that has, among others, these properties. public string StripeRecipientId { get; set; } public override bool HasProvidedBillingInformation { get { // return !str...
Bearish asked 29/9, 2015 at 13:31

5

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I'm creating a POCO model to use with entity framework code first CTP5. I'm using the <key()> decoration to make a property map to a PK column. But how can I define a PK on more then one colu...

8

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Using Entity Framework 4 CTP5 Code First and this example Is it possible to access the discriminator value? I would like to use it in a projection like context.BillingDetails.Select(x => new ...
Fortier asked 24/12, 2010 at 11:6

6

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How do I specify ON DELETE NO ACTION Foreign Key Constraint in my model designs? At present, I have: public class Status { [Required] public int StatusId { get; set; } [Required] [DisplayNam...
Melanite asked 13/10, 2012 at 0:41

10

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I see this a lot in tutorials, with navigation properties as ICollection<T>. Is this a mandatory requirement for Entity Framework? Can I use IEnumerable? What's the main purpose of using IC...
Obligate asked 11/4, 2012 at 20:14

19

Is it possible to have Entity Framework (I am using the Code First Approach with CTP5 currently) store all DateTime values as UTC in the database? Or is there maybe a way to specify it in the mapp...
Freakish asked 10/1, 2011 at 15:44

5

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Is there a way to decorate your POCO classes to automatically eager-load child entities without having to use Include() every time you load them? Say I have a Class Car, with Complex-typed Proper...

9

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I am trying to implemente code First Migrations with Oracle.ManagedDataAccess 6.121.1.0 provider, but with no success at all. As I am receiving a ORA-code, I am assuming that the connection are be...

2

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How can I execute a scalar function using code first? Below is what I have tried but only the query itself is being returned, not the return value. using (var dbContext = new FTTRContext()) { ...
Hack asked 3/6, 2014 at 1:47

4

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In my project I am creating the Appointments table using Entity Framework code first. When I set my integer primary key, AppointmentNo as [Key] and [Required], it creates the table with initial pri...
Opec asked 17/9, 2018 at 19:3

6

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I have following classes and DbContext: public class Order : BaseEntity { public Number {get; set;} } public class Product : BaseEntity; { public Name {get; set;} } public class Context : DbCon...
Inrush asked 3/2, 2014 at 17:19

4

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I have two tables a parent and a child table. The child table has a column sortorder (a numeric value). Because of the missing support of the EF to persist a IList inclusive the sort order without ...
Geanticline asked 30/3, 2012 at 7:50

5

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So here's the scenario: DDD states that you use a repository to get the aggregate root, then use that to add/remove to any collections it has. Adding is simple, you simple call .Add(Item item) on...
Preconcert asked 2/12, 2011 at 17:29

3

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My Seed() method is never called. It is called when I do an Update-Database from the Package Manager Console, but never when I run from code. If I delete my database, all tables are created ( so my...
Shoeblack asked 9/11, 2012 at 19:41

2

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I am working with a system that is using EF code first and I would like to use a number of SQL Server sparse columns on a table. My current solution is to drop the table created by EF and re-add vi...
Indium asked 12/4, 2012 at 12:54

7

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I've just started using EF code first, so I'm a total beginner in this topic. I wanted to create relations between Teams and Matches: 1 match = 2 teams (home, guest) and result. I thought it's ...
Breastplate asked 5/4, 2011 at 21:57

1

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How can I get a field of type array that allows nullable values when using the code-first approach in nestjs graphql. The example shows that @Field(type => [String]) ingredients: string[]; ge...
Chapbook asked 18/6, 2021 at 1:47

5

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I have what should be an easy question but I have been unable to find the answer myself. I am using EF4 CTP-5 Code First Model with hand generated POCOs. It is processing string comparisons in gen...
Mcfarlin asked 24/2, 2011 at 18:58

9

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I am using Entity Framework Code First method to create my database table. The following code creates a DATETIME column in the database, but I want to create a DATE column. [DataType(DataType.Da...

2

I had Asp.net core and gRPC working on the browser...but now I get: info: Grpc.AspNetCore.Server.ServerCallHandler[2] Request content-type of 'application/grpc-web' is not supported. Any ideas on...
Greyhen asked 4/12, 2020 at 2:7

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