"how to seed data in EF" Code Answer's

You're definitely familiar with the best coding language C# that developers use to develop their projects and they get all their queries like "how to seed data in EF" answered properly. Developers are finding an appropriate answer about how to seed data in EF related to the C# coding language. By visiting this online portal developers get answers concerning C# codes question like how to seed data in EF. Enter your desired code related query in the search bar and get every piece of information about C# code related question on how to seed data in EF. 

seeding in ef6

By Bad ButterflyBad Butterfly on Dec 11, 2020 
public class SchoolContext: DbContext 
{
    public SchoolContext(): base("SchoolDB") 
    {
        Database.SetInitializer(new SchoolDBInitializer());
    }
    
    public DbSet<Student> Students { get; set; }
    public DbSet<Standard> Standards { get; set; }
}


public class SchoolDBInitializer : DropCreateDatabaseAlways<SchoolDBContext>
{
    protected override void Seed(SchoolDBContext context)
    {
        IList<Standard> defaultStandards = new List<Standard>();

        defaultStandards.Add(new Standard() { StandardName = "Standard 1", Description = "First Standard" });
        defaultStandards.Add(new Standard() { StandardName = "Standard 2", Description = "Second Standard" });
        defaultStandards.Add(new Standard() { StandardName = "Standard 3", Description = "Third Standard" });

        context.Standards.AddRange(defaultStandards);

        base.Seed(context);
    }
}

Add Comment

0

how to seed data in EF

By Juice WRLDJuice WRLD on Jan 12, 2021 
// This method of seeding is creating another Project alongside your webApi
* Seed File [0/7]
  - [ ] Create Seed Project 
       - mkdir Seeder; cd Seeder; dotnet new console;
  - [ ] Manage Dependencies
       - Create Contexts
       - Add in references to your DbContexts in your Seeder.csproj like

		<ItemGroup>
          <ProjectReference Include="..\path\name.csproj" />
        </ItemGroup>
        
     - Add needed EF packages with dotnet add package <package>
    
  - [ ] Create Seeder Class for <ClassNameToBeSeeded>
       - mkdir Models/
       - nano Models/classNameSeeder.cs

         (or use your ide to manage files)

  - [ ] Add data to be seeded in static methods
      
      //Class or Object to be seeded
      private static IList<ClassNameToBeSeeded> SeedData()
        {
            IList<ClassNameToBeSeeded> pages = new List<ClassNameToBeSeeded>();

            // Creating objects here to pass into the context
    
            pages.Add(new ClassNameToBeSeeded
               {
                // These have to match the unmapped variables in your context
                variable = "something",
               }
            );

            return pages;
        }

  - [ ] Add in call to persist objects through context
  
       public static void SeedToDB()
        {
            var contextOptions = new DbContextOptionsBuilder<ContextName>()
                .UseSqlServer("ConnectionString")
                .Options;

            var context = new ContextName(contextOptions);
            context.Database.EnsureCreated();
            var sections = classNameSeeder.SeedData();
            context.<contextDbSet>.AddRange(sections);
            context.SaveChanges();
        }

  - [ ] Call this in main
  
    namespace Seeder
    {
        class Program
        {
            public static void Main(string[] args)
            {
                //Its static so no need to instantiate
                classNameSeeder.SeedToDB();
            }
        }
    }

   - [ ] Make sure your tables are created with migrations and run the program via
         dotnet run
         
   
 
//Useful methods for database manipulation
  
// reset migration for table
dotnet ef database update 0 --context <context>

//run migration for table creation
dotnet ef database update --context <context>

Add Comment

0

how to seed data in EF

By Juice WRLDJuice WRLD on Jan 12, 2021 
// This method of seeding is creating another Project alongside your webApi
* Seed File [0/7]
  - [ ] Create Seed Project 
       - mkdir Seeder; cd Seeder; dotnet new console;
  - [ ] Manage Dependencies
       - Add in references to your DbContexts in your Seeder.csproj like

		<ItemGroup>
          <ProjectReference Include="..\path\name.csproj" />
        </ItemGroup>
        
     - Add needed EF packages with dotnet add package <package>
    
  - [ ] Create Seeder Class for <ClassNameToBeSeeded>
       - mkdir Models/
       - nano Models/classNameSeeder.cs

         (or use your ide to manage files)

  - [ ] Add data to be seeded in static methods
      
      //Class or Object to be seeded
      private static IList<ClassNameToBeSeeded> SeedData()
        {
            IList<ClassNameToBeSeeded> pages = new List<ClassNameToBeSeeded>();

            // Creating objects here to pass into the context
    
            pages.Add(new ClassNameToBeSeeded
               {
                // These have to match the unmapped variables in your context
                variable = "something",
               }
            );

            return pages;
        }

  - [ ] Add in call to persist objects through context
  
       public static void SeedToDB()
        {
            var contextOptions = new DbContextOptionsBuilder<ContextName>()
                .UseSqlServer("ConnectionString")
                .Options;

            var context = new ContextName(contextOptions);
            context.Database.EnsureCreated();
            var sections = classNameSeeder.SeedData();
            context.<contextDbSet>.AddRange(sections);
            context.SaveChanges();
        }

  - [ ] Call this in main
  
    namespace Seeder
    {
        class Program
        {
            public static void Main(string[] args)
            {
                //Its static so no need to instantiate
                classNameSeeder.SeedToDB();
            }
        }
    }

   - [ ] Make sure your tables are created with migrations and run the program via
         dotnet run
         
   
 
//Useful methods for database manipulation
  
// reset migration for table
dotnet ef database update 0 --context <context>

//run migration for table creation
dotnet ef database update --context <context>

Add Comment

0

database hasData method C#

By Uptight UnicornUptight Unicorn on Nov 27, 2020 
// it goes into class ApplicationDbContext : DbContext
protected override void OnModelCreating(ModelBuilder modelBuilder)
{
    modelBuilder.Entity<Author>().HasData(
        new Author
        {
            AuthorId = 1,
            FirstName = "William",
            LastName = "Shakespeare"
        }
    );
    modelBuilder.Entity<Book>().HasData(
        new Book { BookId = 1, AuthorId = 1, Title = "Hamlet" },
        new Book { BookId = 2, AuthorId = 1, Title = "King Lear" },
        new Book { BookId = 3, AuthorId = 1, Title = "Othello" }
    );

   /*further relational instructions may come here, like:
        modelBuilder.Entity<Author>()
        .HasMany<Book>(a => a.Books)
        .WithOne(b => b.Author)
        .HasForeignKey(b => b.AuthorId);
}

Add Comment

-1

All those coders who are working on the C# based application and are stuck on how to seed data in EF can get a collection of related answers to their query. Programmers need to enter their query on how to seed data in EF related to C# code and they'll get their ambiguities clear immediately. On our webpage, there are tutorials about how to seed data in EF for the programmers working on C# code while coding their module. Coders are also allowed to rectify already present answers of how to seed data in EF while working on the C# language code. Developers can add up suggestions if they deem fit any other answer relating to "how to seed data in EF". Visit this developer's friendly online web community, CodeProZone, and get your queries like how to seed data in EF resolved professionally and stay updated to the latest C# updates. 

C# answers related to "how to seed data in EF"

ef core seed data bogus data without migration how to seed data in EF how to seed data in EF unity reset random seed Show empty message in data table angular material, If no data found Random randomNumber = new Random(seed); c# data types how to get data between two brackets in c# c# data types c# data types c# data types c# data types whats the main data types c# whats the main data types c# c# value types c# value types get data from beamng drive c# read a webpage data unity persistent data Converting to Different data Type how to persist data objects in EF how to update database using sql in c# Update data in db .net how to append data using csvHelper in c# how to input data several times in c# whats the main data types c# if statement to compare between multi data c# creating a data recovery software C# return json data from File how to store more precise data then float c#
View All C# queries

C# queries related to "how to seed data in EF"

ef core seed data bogus data without migration how to seed data in EF unity reset random seed Random randomNumber = new Random(seed); Show empty message in data table angular material, If no data found c# data types how to save data on cellphone unity android how to start grid from where the data starts in c# charts data types of document in asp dot net frame work how to persist data objects in EF save data from textbox to text file c# Update data in db .net generate a dropdown list from array data using razor .net mvc how to append data using csvHelper in c# if statement to compare between multi data c# creating a data recovery software winforms c# add data to datagridview with a button C# return json data from File linq query to fetch parent child data from same table in c# how to copy data from one excel file to another excel file using visual studio c# unity how to get data of play session time in a text file? how to store more precise data then float c# how to get data between two brackets in c# iterate though data in firebase unity asp.net core web api Microsoft.Data.SqlClient.SqlException (0x80131904): The value '1990-10-23' is not valid for DOB. Data Annotation C# how to input data several times in c# how to refresh the data table in C# window form datagridview Converting to Different data Type get data from beamng drive c# read a webpage data unity persistent data edit database from datagridview with right click on data c# c# .net stringify data query polling data source c# using threads how to pass view data to controller in mvc whats the main data types c#

Browse Other Code Languages

Abap ActionScript Assembly BASIC C C# C++ Clojure Cobol CSS Dart Delphi Elixir Erlang F# Fortran Go Groovy Haskell Html Java Javascript Julia Kotlin Lisp Lua Matlab Objective-C Pascal Perl PHP PostScript Prolog Python R Ruby Rust Scala Scheme Shell/Bash Smalltalk SQL Swift TypeScript VBA WebAssembly Whatever
CodeProZone