Entity Framework Graph Diff - Knowledge Base (KB)
25 results in tag: entity-framework
How to update an expression tree with GraphDiff
The object graph I'm working with is basically:...public class Resource { public string Forename { get; set; } public string Surname { get; set; } public int EmployeeNumber { get; set; } public ICollection<Skill> Skills...
asked by DaveF
Update entity graph Ids with Db generated Ids in Disconnected environment(EF)
I'm working with ...EF6 code first... in a ...WinForm... project. I used following method for reading entities from ...Db..., updating them and then save back them to ...Db...:...Read Entity graph using ...Linq to entities...(after reading the ...DbContex...
asked by Masoud
How do you perform service-oriented parent-child transactions?
Example:...A SalesOrder is composed of a SalesOrderHeader and one or more SalesOrderItems. When editing an existing SalesOrder, the SalesOrderHeader can be modified and SalesOrderItems can be added, modified and deleted. All changes must be saved in a sin...
asked by BahKoo
GraphDiff and EF6.1 – Recursive Many-to-Many Relationship
I am having an issue with GraphDiff attaching an object which has a recursive many-to-many relationship. I am using GraphDiff 2.0.1 and Entity Framework 6.1.1....The progam manages Recipes which can have 0-n RecipeLines which contains a link to another Re...
asked by Croberts
Updating a many-to-many relation using GraphDiff cause an error
I'm using ...EF code first 6.1... with ....NET 4... in my application and have following classes in my model(I cut other unrelated parts of diagram. e.g ...Permission... has other navigations): ...My business logic works with detached entities so I'm usin...
asked by Masoud
Graphdiff is removing entities
I have the following entities: ...public class Profile { [Required] public string Name { get; set; } [Required] public string Description { get; set; } [Key, DatabaseGenerated(DatabaseGeneratedOption.Identity)] public int ID { g...
asked by Cesar
Using GraphDiff on three tables
I have three tables...ShippingZone ShippingZoneID -> PK ZoneShippingMethod: ZoneShippingMethodID -> PK ShippingZoneID -> FK ZoneShippingMethodRange ZoneShippingMethodID -> FK ...The context:...public ShippingZonesContext() : ...
asked by Codehelp
UpdateGraph with self referencing entity
I'm using ...GraphDiff... with EF to update state of disconnected objects acquired from a REST Service....It's working rather well from now but I got a problem with self referencing entities....Entities :...public class Foo { [Key] public int Id {...
asked by Florian F.
Setting association to foreign key to inherited object using graphdiff and Entity Framework
I have a issue with updating value on a foreign key which is inheriting from another class. I am working with detached object in Entity Framework, so I'm using graphdiff to handle it....I've simplified the code to make it easier to read...Project class:..
asked by Arne H. Bitubekk
Updating data in two related tables using GraphDiff
I have two tables, Order and OrderItems...The Order table has a OrderId column that's the primary key The OrderItems also has this column as foriegn key....For a given Order, if the OrderId is 1 and it has two items the OrderItems table will have two rows...
asked by Codehelp
Empty rows insertion in Many-to-One and Many-to-Many relationships in GraphDiff
I am using GraphDiff, along with the latest version of the Entity Framework, following the code-first approach....I am trying to update a ...Food... entity this way:...public void Update(Food food) { using (var db = new DatabaseMappingContext()) {...
asked by Nick Louloudakis
Inserting entity doesn't update Key field
I'm trying to insert a detached entity into database using GraphDiff....It goes something like :...public IHttpActionResult Post([FromBody] Foo foo) { var newFoo = fooBusiness.AddObject(foo); if (newFoo != null) { return CreatedAtRoute("Ge...
asked by Florian F.
Can GraphDiff be used for partial updates of simple entities too?
I have a WebApi2 project with EF6 CodeFirst. I'm also using AutoMapper to map between my models and dto's. I'm not using OData. ...I'm trying to find a solution to handle updates of entities. As I'm not using OData I can't use Delta and I would not like t...
asked by Ivan-Mark Debono
Should foreign Id properties be mapped from Model to Dto?
If I have the following model:...public class Customer { public int Id {get; set;} public int CustomerTypeId {get; set;} public virtual CustomerType {get; set;} } ...Should the Dto exclude foreign Id's to look like this:...public class Custome...
asked by Ivan-Mark Debono
How to update related entities using GraphDiff?
I have the following model:...public class Customer { public int Id {get; set;} public string Name {get; set;} public int AddressId {get; set;} public virtual Address Address {get; set;} public virtual ICollection<CustomerCategory> Cat...
asked by Ivan-Mark Debono
Using Moq with EntityFramework graphdiff
I have just added GraphDiff in an existing Entity Framework solution which is utilizing Moq framework for testing. All my tests that are using Moq in insert and update methods are now failing since method ..._context.UpdateGraph... throws following except...
asked by vipasane
Resolving class that has extension methods with AutoFac
I am using a third party library ...GraphDiff... which adds Extension methods to DBContext class. My Context class is inherited from Interface like following ... MyContext: DbContext,IMyContext ...IoC contained register MyContext as IMyContext. Interface...
asked by InTheWorldOfCodingApplications
GraphDiff causing id of entity to not get populated after saveChanges()
When using graphDiff for creating a record the new id isn't getting populated back into the entity after saveChanges() is called. Its been logged on the github repo here - ...https://github.com/refactorthis/GraphDiff/issues/144... but the repo doesn't see...
asked by Michael Esteves
Conditional mapping with graphdiff
I have following entities in my ...DbContext...:...public class A { public A() { Bs = new List<B>(); } public ICollection<B> Bs { set; get; } } ...Sometimes I Want to update ...a... graph:...var a = dbContext.As .AsNoTrackin...
asked by Masoud
The relationship could not be changed because one or more of the foreign-key properties is non nullable
I get following error during update with EF:...The operation failed: The relationship could not be changed because one or more of the foreign-key properties is non-nullable. When a change is made to a relationship, the related foreign-key property is set ...
asked by Masoud