dbcontext

I have just created an ASP.NET MVC 4 & WebAPI project. After that I have added .edmx data source to project. I have multiple databases with the same schema. Dynamically I want to replace connection string using default constructor provided in EF. But in Model1.Designer.cs , every time I get error like "Member with same signature already declared". I'm unable to solve this problem. Yes, it works! All you need to change is the connection string . And I have just tested it in order to satisfy my own curiosity. Here are the steps that I took: 1. Take an existing database and create a model for it.

I would like to only have one DbContext in my ASP.NET MVC project. How should I merge the default IdentityDbContext with my own code first DbContext? They are using the same database. public class ApplicationDbContext : IdentityDbContext<ApplicationUser> { public ApplicationDbContext() : base("SignalRChat") { } } This is the default one provided in the IdentityModel.cs class. Is it safe to do the following? And append my own DbSets? public class ApplicationDbContext : IdentityDbContext<ApplicationUser> { public ApplicationDbContext() : base("SignalRChat") { } public DbSet<Student> Students {

Is there a way to use the method described in this answer No FindAsync() method on IDbSet for DbSet properties of a DbContext? Edit: The answer linked contains a description how to build a interface inheriting from IDbSet and adding support for the SearchAsync method of the DbSet class. I understand everything which Keith Payne has written, but I don’t know how I can use it in DbContext. For example I’ve a DbContext which looks something like this: public class MyContext : DbContext { public DbSet<Customer> Customers { get; set; } } How can I use MyDbSet (class described in the answer.) or a

I have the following relationship between the entities. Company 1 ---* Appointments *---1 Employee I have the .net asp membership in a separate database. Whenever a user is created it can be assigned to companies, employees, or administrators roles. in the Index action of my Company Controller, I check the logged in user's role. Based on the role, I make different linq query. For example, administrators can get list of all companies, companies can get list of company which has a username property (string) same as the User.Identity.Name. For both of administrators and companies role, it is

I'm trying to figure out the best way to manage the DbContext. I've seen code samples that don't dispose and I've seen people say that that is a bad idea. Is it appropriate for me to do something like below? Also, should I put every transaction, including reads, in a new DbContext? This might be another question, but is the part about the EntityState necessary? public abstract class GenericRepository<T> where T : EntityData { protected MyDbContext Context { get { return new MyDbContext(); } } public T Save(T obj) { T item; using (var context = Context) { var set = context.Set<T>(); if (String