C#•4mo ago

Issue with DbContext reading in DB Tables

I am trying to use DbContext and the optionsBuilder to connect to my database and obtain a table called "Card". I am doing the following command in

OnConfiguring

OnConfiguring

optionsBuilder.UseSqlite($"Data Source=mtg.db");

optionsBuilder.UseSqlite($"Data Source=mtg.db");

and also have the following object instantiated in the same class:

public DbSet<Card> Card { get; set; }

public DbSet<Card> Card { get; set; }

Then, in my main method I run the following lines:

            var context = new MtgContext();
            var dbCards = context.Card.ToList();
            Console.WriteLine(dbCards);

            var context = new MtgContext();
            var dbCards = context.Card.ToList();
            Console.WriteLine(dbCards);

I get an error that "Card" is not a known table even though I have a Card table in the database. What am I doing wrong?

71 Replies

Jimmacle•4mo ago

you should be doing 1 of 2 things 1. create your dbcontext then use that to generate migrations to create your database 2. scaffold your dbcontext from your existing database otherwise you get issues like this where things aren't named what you expect

TimOP•4mo ago

how do you generate migrations? right now my card table resembles my card class

Angius•4mo ago

https://learn.microsoft.com/en-us/ef/core/managing-schemas/migrations

Migrations Overview - EF Core

Overview of using migrations to manage database schemas with Entity Framework Core

TimOP•4mo ago

Ah yeah, i've tried running

dotnet ef migrations add InitialCreate

dotnet ef migrations add InitialCreate

but it gives me this error: Could not execute because the specified command or file was not found. Possible reasons for this include: * You misspelled a built-in dotnet command. * You intended to execute a .NET program, but dotnet-ef does not exist. * You intended to run a global tool, but a dotnet-prefixed executable with this name could not be found on the PATH.

Angius•4mo ago

Did you install th dotnet-ef tool?

TimOP•4mo ago

ah maybe not that fixed it

RedSatanFrog•4mo ago

afterall, if you have just testing DB and no important data, you can use EnsureDeleted then EnsureCreated)

TimOP•4mo ago

So now that I have the intiialcreate ran in the terminal do i have to manually add the tables with

dotnet ef migrations add [table]

dotnet ef migrations add [table]

Angius•4mo ago

No DbContext represents the database DbSet<T>s within represent the tables Each T represents the shape of the table

TimOP•4mo ago

I see. so is there still a chance that it's not named card as i expected? it still doesnt seem to work

Angius•4mo ago

public class MyDbContext : DbContext
{
    public required DbSet<User> Users { get; init; }
    public required DbSet<Blogpost> Blogposts { get; init; }
}

public class MyDbContext : DbContext
{
    public required DbSet<User> Users { get; init; }
    public required DbSet<Blogpost> Blogposts { get; init; }
}

public class User
{
    public int Id { get; set; }
    public string Name { get; set; }
    public List<Blogpost> Blogposts { get; set; }
}

public class User
{
    public int Id { get; set; }
    public string Name { get; set; }
    public List<Blogpost> Blogposts { get; set; }
}

public class Blogpost
{
    public int Id { get; set; }
    public string Title { get; set; }
    public string Body { get; set; }
    public User Author { get; set; }
    public int AuthorId { get; set; }
}

public class Blogpost
{
    public int Id { get; set; }
    public string Title { get; set; }
    public string Body { get; set; }
    public User Author { get; set; }
    public int AuthorId { get; set; }
}

This will create a database with Users and Blogposts tables Blogpost having a foreign key to User Both having an auto-incremented integer primary key

TimOP•4mo ago

Yeah

    public class Card : ICard
    {
        [Key]
        public int CardPK { get; set; }
        public string CardName { get; set; }
        public SpellTypes CardType { get; set; }
        public string CardText { get; set; }
        public int? Power { get; set; }
        public int? Toughness { get; set; }
        [NotMapped]
        public Dictionary<LandTypes, int> ManaCost { get; set; }
        [NotMapped]
        public bool Tapped { get; set; }
        [NotMapped]
        public bool IsExiled { get; set; }
        [NotMapped]
        public bool IsInGraveyard { get; set; }
        [NotMapped]
        public int TurnCount { get; set; }

    public class Card : ICard
    {
        [Key]
        public int CardPK { get; set; }
        public string CardName { get; set; }
        public SpellTypes CardType { get; set; }
        public string CardText { get; set; }
        public int? Power { get; set; }
        public int? Toughness { get; set; }
        [NotMapped]
        public Dictionary<LandTypes, int> ManaCost { get; set; }
        [NotMapped]
        public bool Tapped { get; set; }
        [NotMapped]
        public bool IsExiled { get; set; }
        [NotMapped]
        public bool IsInGraveyard { get; set; }
        [NotMapped]
        public int TurnCount { get; set; }

this is part of my card class, there are some methods as well but i didnt include them here And this things that are mapped are the same name in the database as well

Angius•4mo ago

[NotMapped] 💀 Get into the habit of using DTOs Database models should only describe the database table

TimOP•4mo ago

Gotcha. I wasnt sure how else to represent this class because it requries the values that arent mapped and i wouldnt wanna represent those values in the database but with that aside, is there anythign else im missing? it doesnt seem like the migrations fixed it

Angius•4mo ago

Show your code and errors

TimOP•4mo ago

using MTG.Database;

namespace MTG.Gameplay
{
    public class Program
    {
        public static void Main(string[] args)
        {
            var context = new MtgContext();
            var dbCards = context.Card.ToList();
            Console.WriteLine(dbCards);
        }
    }

}

using MTG.Database;

namespace MTG.Gameplay
{
    public class Program
    {
        public static void Main(string[] args)
        {
            var context = new MtgContext();
            var dbCards = context.Card.ToList();
            Console.WriteLine(dbCards);
        }
    }

}

using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
using MTG.Classes;
using MTG.Enums;
using MTG.Gameplay;

using MTG.Players;

namespace MTG.Database
{
    public class MtgContext : DbContext
    {
        public DbSet<Card> Card { get; set; }

        //public DbSet<AbilitiesLK> Abilities {get; set;}

        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
        {
  
            optionsBuilder.UseSqlite($"Data Source=mtg.db)");
        }
    }
}

using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
using MTG.Classes;
using MTG.Enums;
using MTG.Gameplay;

using MTG.Players;

namespace MTG.Database
{
    public class MtgContext : DbContext
    {
        public DbSet<Card> Card { get; set; }

        //public DbSet<AbilitiesLK> Abilities {get; set;}

        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
        {
  
            optionsBuilder.UseSqlite($"Data Source=mtg.db)");
        }
    }
}

using MTG.Enums;
using MTG.Interfaces;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;


namespace MTG.Players
{
    public class Card : ICard
    {
        [Key]
        public int CardPK { get; set; }
        public string CardName { get; set; }
        public SpellTypes CardType { get; set; }
        public string CardText { get; set; }
        public int? Power { get; set; }
        public int? Toughness { get; set; }
        [NotMapped]
        public Dictionary<LandTypes, int> ManaCost { get; set; }
        [NotMapped]
        public bool Tapped { get; set; }
        [NotMapped]
        public bool IsExiled { get; set; }
        [NotMapped]
        public bool IsInGraveyard { get; set; }
        [NotMapped]
        public int TurnCount { get; set; }

        public virtual void EnterBattlefield(bool tapped)
        {
            IsInGraveyard = false;
        }

        public virtual void EnterGraveyard()
        {
            IsInGraveyard = true;
        }

        public virtual void Exile()
        {
            IsExiled = true;
        }

        public void ToggleTapped()
        {
            Tapped = !Tapped;
        }
    }
}

using MTG.Enums;
using MTG.Interfaces;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;


namespace MTG.Players
{
    public class Card : ICard
    {
        [Key]
        public int CardPK { get; set; }
        public string CardName { get; set; }
        public SpellTypes CardType { get; set; }
        public string CardText { get; set; }
        public int? Power { get; set; }
        public int? Toughness { get; set; }
        [NotMapped]
        public Dictionary<LandTypes, int> ManaCost { get; set; }
        [NotMapped]
        public bool Tapped { get; set; }
        [NotMapped]
        public bool IsExiled { get; set; }
        [NotMapped]
        public bool IsInGraveyard { get; set; }
        [NotMapped]
        public int TurnCount { get; set; }

        public virtual void EnterBattlefield(bool tapped)
        {
            IsInGraveyard = false;
        }

        public virtual void EnterGraveyard()
        {
            IsInGraveyard = true;
        }

        public virtual void Exile()
        {
            IsExiled = true;
        }

        public void ToggleTapped()
        {
            Tapped = !Tapped;
        }
    }
}

thats all the relevant code i beleive

Angius•4mo ago

And what's the error?

TimOP•4mo ago

Microsoft.Data.Sqlite.SqliteException: 'SQLite Error 1: 'no such table: Card'.

Microsoft.Data.Sqlite.SqliteException: 'SQLite Error 1: 'no such table: Card'.

Angius•4mo ago

What do migrations say?

TimOP•4mo ago

using Microsoft.EntityFrameworkCore.Migrations;

#nullable disable

namespace MTG.Migrations
{
    /// <inheritdoc />
    public partial class InitialCreate : Migration
    {
        /// <inheritdoc />
        protected override void Up(MigrationBuilder migrationBuilder)
        {
            migrationBuilder.CreateTable(
                name: "Card",
                columns: table => new
                {
                    CardPK = table.Column<int>(type: "INTEGER", nullable: false)
                        .Annotation("Sqlite:Autoincrement", true),
                    CardName = table.Column<string>(type: "TEXT", nullable: false),
                    CardType = table.Column<int>(type: "INTEGER", nullable: false),
                    CardText = table.Column<string>(type: "TEXT", nullable: false),
                    Power = table.Column<int>(type: "INTEGER", nullable: true),
                    Toughness = table.Column<int>(type: "INTEGER", nullable: true)
                },
                constraints: table =>
                {
                    table.PrimaryKey("PK_Card", x => x.CardPK);
                });
        }

        /// <inheritdoc />
        protected override void Down(MigrationBuilder migrationBuilder)
        {
            migrationBuilder.DropTable(
                name: "Card");
        }
    }
}

using Microsoft.EntityFrameworkCore.Migrations;

#nullable disable

namespace MTG.Migrations
{
    /// <inheritdoc />
    public partial class InitialCreate : Migration
    {
        /// <inheritdoc />
        protected override void Up(MigrationBuilder migrationBuilder)
        {
            migrationBuilder.CreateTable(
                name: "Card",
                columns: table => new
                {
                    CardPK = table.Column<int>(type: "INTEGER", nullable: false)
                        .Annotation("Sqlite:Autoincrement", true),
                    CardName = table.Column<string>(type: "TEXT", nullable: false),
                    CardType = table.Column<int>(type: "INTEGER", nullable: false),
                    CardText = table.Column<string>(type: "TEXT", nullable: false),
                    Power = table.Column<int>(type: "INTEGER", nullable: true),
                    Toughness = table.Column<int>(type: "INTEGER", nullable: true)
                },
                constraints: table =>
                {
                    table.PrimaryKey("PK_Card", x => x.CardPK);
                });
        }

        /// <inheritdoc />
        protected override void Down(MigrationBuilder migrationBuilder)
        {
            migrationBuilder.DropTable(
                name: "Card");
        }
    }
}

// <auto-generated />
using System;
using MTG.Database;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Infrastructure;
using Microsoft.EntityFrameworkCore.Storage.ValueConversion;

#nullable disable

namespace MTG.Migrations
{
    [DbContext(typeof(MtgContext))]
    partial class MtgContextModelSnapshot : ModelSnapshot
    {
        protected override void BuildModel(ModelBuilder modelBuilder)
        {
#pragma warning disable 612, 618
            modelBuilder.HasAnnotation("ProductVersion", "8.0.7");

            modelBuilder.Entity("MTG.Players.Card", b =>
                {
                    b.Property<int>("CardPK")
                        .ValueGeneratedOnAdd()
                        .HasColumnType("INTEGER");

                    b.Property<string>("CardName")
                        .IsRequired()
                        .HasColumnType("TEXT");

                    b.Property<string>("CardText")
                        .IsRequired()
                        .HasColumnType("TEXT");

                    b.Property<int>("CardType")
                        .HasColumnType("INTEGER");

                    b.Property<int?>("Power")
                        .HasColumnType("INTEGER");

                    b.Property<int?>("Toughness")
                        .HasColumnType("INTEGER");

                    b.HasKey("CardPK");

                    b.ToTable("Card");
                });
#pragma warning restore 612, 618
        }
    }
}

// <auto-generated />
using System;
using MTG.Database;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Infrastructure;
using Microsoft.EntityFrameworkCore.Storage.ValueConversion;

#nullable disable

namespace MTG.Migrations
{
    [DbContext(typeof(MtgContext))]
    partial class MtgContextModelSnapshot : ModelSnapshot
    {
        protected override void BuildModel(ModelBuilder modelBuilder)
        {
#pragma warning disable 612, 618
            modelBuilder.HasAnnotation("ProductVersion", "8.0.7");

            modelBuilder.Entity("MTG.Players.Card", b =>
                {
                    b.Property<int>("CardPK")
                        .ValueGeneratedOnAdd()
                        .HasColumnType("INTEGER");

                    b.Property<string>("CardName")
                        .IsRequired()
                        .HasColumnType("TEXT");

                    b.Property<string>("CardText")
                        .IsRequired()
                        .HasColumnType("TEXT");

                    b.Property<int>("CardType")
                        .HasColumnType("INTEGER");

                    b.Property<int?>("Power")
                        .HasColumnType("INTEGER");

                    b.Property<int?>("Toughness")
                        .HasColumnType("INTEGER");

                    b.HasKey("CardPK");

                    b.ToTable("Card");
                });
#pragma warning restore 612, 618
        }
    }
}

Angius•4mo ago

No, the cli when you migrate

TimOP•4mo ago

dotnet ef migrations add InitialCreate
>>
Build started...
Build succeeded.
Done. To undo this action, use 'ef migrations remove'

dotnet ef migrations add InitialCreate
>>
Build started...
Build succeeded.
Done. To undo this action, use 'ef migrations remove'

 dotnet ef database update
Build started...
Build succeeded.
Applying migration '20240720203616_InitialCreate'.
Done.

 dotnet ef database update
Build started...
Build succeeded.
Applying migration '20240720203616_InitialCreate'.
Done.

Angius•4mo ago

And when you apply that migration huh

TimOP•4mo ago

those are the only two commands i have done

Angius•4mo ago

Huh

TimOP•4mo ago

D: any other suggestions to try? i feel like its a really silly mistake but im not sure what im overlooking

Angius•4mo ago

Delete mtg.db file, delete the migrations, create the migration and apply it again Only thing that comes to mind

TimOP•4mo ago

do i delete the .dll and exe of it too? there ar a few diufferent file types of the same name

Angius•4mo ago

What dll and exe...?

TimOP•4mo ago

https://gyazo.com/bb316edd606dae7f867cf8b77dddd73c

Gyazo

Angius•4mo ago

Where is that?

TimOP•4mo ago

net8.0 folder

C:\Users\timo2\OneDrive\Desktop\The Grind\Personal Projects\MTG\MTG\MTG\bin\Debug\net8.0

C:\Users\timo2\OneDrive\Desktop\The Grind\Personal Projects\MTG\MTG\MTG\bin\Debug\net8.0

is there another place to delete it

Angius•4mo ago

Right... you know what, just delete the bin and obj folders altogether It's safe to do, no worries

TimOP•4mo ago

kk and now do dotnet ef migrations remove ?

Angius•4mo ago

Nah, just remove the Migrations folder

TimOP•4mo ago

okie and re run ? or just run those two migration commands and then re run program

Angius•4mo ago

yeah

TimOP•4mo ago

got a diff output when i did update now hm

Angius•4mo ago

Oh?

TimOP•4mo ago

Build succeeded.
Applying migration '20240720210319_InitialCreate'.
Failed executing DbCommand (1ms) [Parameters=[], CommandType='Text', CommandTimeout='30']
CREATE TABLE "Card" (
    "CardPK" INTEGER NOT NULL CONSTRAINT "PK_Card" PRIMARY KEY AUTOINCREMENT,
    "CardName" TEXT NOT NULL,
    "CardType" INTEGER NOT NULL,
    "CardText" TEXT NOT NULL,
    "Power" INTEGER NULL,
    "Toughness" INTEGER NULL
);
Microsoft.Data.Sqlite.SqliteException (0x80004005): SQLite Error 1: 'table "Card" already exists'.
   at Microsoft.Data.Sqlite.SqliteException.ThrowExceptionForRC(Int32 rc, sqlite3 db)
   at Microsoft.Data.Sqlite.SqliteCommand.PrepareAndEnumerateStatements()+MoveNext()
   at Microsoft.Data.Sqlite.SqliteCommand.GetStatements()+MoveNext()
   at Microsoft.Data.Sqlite.SqliteDataReader.NextResult()
   at Microsoft.Data.Sqlite.SqliteCommand.ExecuteReader(CommandBehavior behavior)
   at Microsoft.Data.Sqlite.SqliteCommand.ExecuteReader()
   at Microsoft.Data.Sqlite.SqliteCommand.ExecuteNonQuery()
   at Microsoft.EntityFrameworkCore.Storage.RelationalCommand.ExecuteNonQuery(RelationalCommandParameterObject parameterObject)
   at Microsoft.EntityFrameworkCore.Migrations.MigrationCommand.ExecuteNonQuery(IRelationalConnection connection, IReadOnlyDictionary`2 parameterValues)
   at Microsoft.EntityFrameworkCore.Migrations.Internal.MigrationCommandExecutor.ExecuteNonQuery(IEnumerable`1 migrationCommands, IRelationalConnection connection)
   at Microsoft.EntityFrameworkCore.Migrations.Internal.Migrator.Migrate(String targetMigration)
   at Microsoft.EntityFrameworkCore.Design.Internal.MigrationsOperations.UpdateDatabase(String targetMigration, String connectionString, String contextType)
   at

Build succeeded.
Applying migration '20240720210319_InitialCreate'.
Failed executing DbCommand (1ms) [Parameters=[], CommandType='Text', CommandTimeout='30']
CREATE TABLE "Card" (
    "CardPK" INTEGER NOT NULL CONSTRAINT "PK_Card" PRIMARY KEY AUTOINCREMENT,
    "CardName" TEXT NOT NULL,
    "CardType" INTEGER NOT NULL,
    "CardText" TEXT NOT NULL,
    "Power" INTEGER NULL,
    "Toughness" INTEGER NULL
);
Microsoft.Data.Sqlite.SqliteException (0x80004005): SQLite Error 1: 'table "Card" already exists'.
   at Microsoft.Data.Sqlite.SqliteException.ThrowExceptionForRC(Int32 rc, sqlite3 db)
   at Microsoft.Data.Sqlite.SqliteCommand.PrepareAndEnumerateStatements()+MoveNext()
   at Microsoft.Data.Sqlite.SqliteCommand.GetStatements()+MoveNext()
   at Microsoft.Data.Sqlite.SqliteDataReader.NextResult()
   at Microsoft.Data.Sqlite.SqliteCommand.ExecuteReader(CommandBehavior behavior)
   at Microsoft.Data.Sqlite.SqliteCommand.ExecuteReader()
   at Microsoft.Data.Sqlite.SqliteCommand.ExecuteNonQuery()
   at Microsoft.EntityFrameworkCore.Storage.RelationalCommand.ExecuteNonQuery(RelationalCommandParameterObject parameterObject)
   at Microsoft.EntityFrameworkCore.Migrations.MigrationCommand.ExecuteNonQuery(IRelationalConnection connection, IReadOnlyDictionary`2 parameterValues)
   at Microsoft.EntityFrameworkCore.Migrations.Internal.MigrationCommandExecutor.ExecuteNonQuery(IEnumerable`1 migrationCommands, IRelationalConnection connection)
   at Microsoft.EntityFrameworkCore.Migrations.Internal.Migrator.Migrate(String targetMigration)
   at Microsoft.EntityFrameworkCore.Design.Internal.MigrationsOperations.UpdateDatabase(String targetMigration, String connectionString, String contextType)
   at

Microsoft.EntityFrameworkCore.Design.OperationExecutor.UpdateDatabaseImpl(String targetMigration, String connectionString, String contextType)
   at Microsoft.EntityFrameworkCore.Design.OperationExecutor.UpdateDatabase.<>c__DisplayClass0_0.<.ctor>b__0()
   at Microsoft.EntityFrameworkCore.Design.OperationExecutor.OperationBase.Execute(Action action)
SQLite Error 1: 'table "Card" already exists'.

Microsoft.EntityFrameworkCore.Design.OperationExecutor.UpdateDatabaseImpl(String targetMigration, String connectionString, String contextType)
   at Microsoft.EntityFrameworkCore.Design.OperationExecutor.UpdateDatabase.<>c__DisplayClass0_0.<.ctor>b__0()
   at Microsoft.EntityFrameworkCore.Design.OperationExecutor.OperationBase.Execute(Action action)
SQLite Error 1: 'table "Card" already exists'.

but the program still doesnt work 😭

Angius•4mo ago

Huh I... think I know what might be happening here

TimOP•4mo ago

ill be back on later but if you guys have any suggestiuons that would be helpful

Jimmacle•4mo ago

applying migrations to the wrong db? :LUL:

Angius•4mo ago

It's creating a new database file with each build

Jimmacle•4mo ago

the build itself shouldn't, but running the migrations would create one wherever the connection string says to

Angius•4mo ago

I wonder if creating mtg.db in the project root and copying it on build would fix it

TimOP•4mo ago

wdym copying it on build? i access the db in ssms

Jimmacle•4mo ago

ssms works with sqlite? are you 100% sure that the file you're applying migrations to and the one your program is opening are the same?

Angius•4mo ago

See, that's why I prefer running Pg even for small projects like this, no need to worry about which file I open, which gets used, which gets created, and whether all three of those are the same file or not :KEKW:

Jimmacle•4mo ago

sqlite also has some quirks with write-ahead logging that can store data in a file other than the main .db file and cause more confusion

TimOP•4mo ago

i am not sure ...😂 do yall know what companies with big databases in ssms usually use to connect to c# if not dbcontext?

Jimmacle•4mo ago

that's not the problem here, EF core is a very common and well supported library ssms isn't a database, it's a tool to manage databases in your case your actual database is sqlite

TimOP•4mo ago

ah i see what u mean Well i created the database in ssms. does it make it sqlite by default?

Jimmacle•4mo ago

i have no idea, ssms is primarily used to manage MS SQL Server instances you shouldn't be creating the database in ssms at all if you're using migrations

TimOP•4mo ago

oof

Jimmacle•4mo ago

it will be created when you apply the migrations

TimOP•4mo ago

so how would i instead connect it to the one made in ssms

Jimmacle•4mo ago

and since sqlite works with files and not a connection to a server, you have to make sure the file you're migrating and the file your program is using at runtime are the same file

TimOP•4mo ago

or how would i make a new one that's still accessible in ssms i suppose gotcha How would I verify that?

Jimmacle•4mo ago

check the working directory of your program and make sure that the db file in that folder is the one you're migrating or opening in ssms afaik sqlite also does not like multiple programs opening the same db at once, so i'd avoid doing that

TimOP•4mo ago

how would ik what i'm migrating tho ?

Jimmacle•4mo ago

it uses the same connection string that you put in OnConfiguring

TimOP•4mo ago

ah yeah

Jimmacle•4mo ago

and that file will be relative to the working directory of the program, which is probably the folder where the exe is but it can also be the project folder

TimOP•4mo ago

i'm pretty sure it's not the same as the one in sssms since i created the db in sssms but i'm not sure how to point it to that one

Jimmacle•4mo ago

honestly unless you need sqlite specifically i'd skip the headache and install a proper database server like sql express sqlite databases are just files, you'd point it by opening the database that you want to use

TimOP•4mo ago

gotcha, will look into that when i get home so do i have to re create the database using sql express? or how would this work

Jimmacle•4mo ago

you'll need to recreate the migrations for sql server instead of sqlite, that's about it then use a connection string for your sql express instance instead of a sqlite database file

TimOP•4mo ago

how do you point the migrations at the sql server tho ? do u just change the cmd in the cli

Jimmacle•4mo ago

by changing the ef core provider library and connection string so instead of .UseSqlite(...) it would be .UseSqlServer(...)

TimOP•4mo ago

ohhh gotcha I blame chat gpt lmao I'll try that out soon and lyk how it goes alright well im getting a diff error now at least:

Microsoft.Data.SqlClient.SqlException: 'A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)'

Microsoft.Data.SqlClient.SqlException: 'A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)'

on ssms im connecting through localhost tho, i wasnt able to get my other server to work im using this instead

            optionsBuilder.UseSqlServer(@"Server=localhost;Database=mtg;Trusted_Connection=True;");

            optionsBuilder.UseSqlServer(@"Server=localhost;Database=mtg;Trusted_Connection=True;");

but now i get this issue:

Microsoft.Data.SqlClient.SqlException: 'A connection was successfully established with the server, but then an error occurred during the login process. (provider: SSL Provider, error: 0 - The certificate chain was issued by an authority that is not trusted.)'

Microsoft.Data.SqlClient.SqlException: 'A connection was successfully established with the server, but then an error occurred during the login process. (provider: SSL Provider, error: 0 - The certificate chain was issued by an authority that is not trusted.)'

I think I have it working now (ik its bad practice but i ended up adding "Encrypt=False"). Thanks so much for your help guys !

Gaming

Programming

Issue with DbContext reading in DB Tables