diff --git a/EF_Code_First/Migrations/20220312173822_V0.0.Designer.cs b/EF_Code_First/Migrations/20220312173822_V0.0.Designer.cs
deleted file mode 100644
index fee9ed6..0000000
--- a/EF_Code_First/Migrations/20220312173822_V0.0.Designer.cs
+++ /dev/null
@@ -1,86 +0,0 @@
-// <auto-generated />
-using System;
-using EF_Code_First.Models;
-using Microsoft.EntityFrameworkCore;
-using Microsoft.EntityFrameworkCore.Infrastructure;
-using Microsoft.EntityFrameworkCore.Migrations;
-using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
-
-#nullable disable
-
-namespace EF_Code_First.Migrations
-{
-    [DbContext(typeof(SC_DbContext))]
-    [Migration("20220312173822_V0.0")]
-    partial class V00
-    {
-        protected override void BuildTargetModel(ModelBuilder modelBuilder)
-        {
-#pragma warning disable 612, 618
-            modelBuilder.HasAnnotation("ProductVersion", "6.0.3");
-
-            modelBuilder.Entity("EF_Code_First.Models.Grade", b =>
-                {
-                    b.Property<int>("GradeId")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("INTEGER");
-
-                    b.Property<string>("GradeName")
-                        .HasColumnType("TEXT");
-
-                    b.Property<string>("Section")
-                        .HasColumnType("TEXT");
-
-                    b.HasKey("GradeId");
-
-                    b.ToTable("Grade", (string)null);
-                });
-
-            modelBuilder.Entity("EF_Code_First.Models.Student", b =>
-                {
-                    b.Property<int>("StudentId")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("INTEGER");
-
-                    b.Property<DateTime?>("DateOfBirth")
-                        .HasColumnType("TEXT");
-
-                    b.Property<int>("GradeId")
-                        .HasColumnType("INTEGER");
-
-                    b.Property<decimal?>("Height")
-                        .HasColumnType("TEXT");
-
-                    b.Property<byte[]>("Photo")
-                        .HasColumnType("BLOB");
-
-                    b.Property<string>("StudentName")
-                        .HasColumnType("TEXT");
-
-                    b.Property<float?>("Weight")
-                        .HasColumnType("REAL");
-
-                    b.HasKey("StudentId");
-
-                    b.HasIndex("GradeId");
-
-                    b.ToTable("Students", (string)null);
-                });
-
-            modelBuilder.Entity("EF_Code_First.Models.Student", b =>
-                {
-                    b.HasOne("EF_Code_First.Models.Grade", "Grade")
-                        .WithMany("Students")
-                        .HasForeignKey("GradeId");
-
-                    b.Navigation("Grade");
-                });
-
-            modelBuilder.Entity("EF_Code_First.Models.Grade", b =>
-                {
-                    b.Navigation("Students");
-                });
-#pragma warning restore 612, 618
-        }
-    }
-}
diff --git a/EF_Code_First/Migrations/20220312173822_V0.0.cs b/EF_Code_First/Migrations/20220312173822_V0.0.cs
deleted file mode 100644
index 16b37cf..0000000
--- a/EF_Code_First/Migrations/20220312173822_V0.0.cs
+++ /dev/null
@@ -1,64 +0,0 @@
-using System;
-using Microsoft.EntityFrameworkCore.Migrations;
-
-#nullable disable
-
-namespace EF_Code_First.Migrations
-{
-    public partial class V00 : Migration
-    {
-        protected override void Up(MigrationBuilder migrationBuilder)
-        {
-            migrationBuilder.CreateTable(
-                name: "Grade",
-                columns: table => new
-                {
-                    GradeId = table.Column<int>(type: "INTEGER", nullable: false)
-                        .Annotation("Sqlite:Autoincrement", true),
-                    GradeName = table.Column<string>(type: "TEXT", nullable: true),
-                    Section = table.Column<string>(type: "TEXT", nullable: true)
-                },
-                constraints: table =>
-                {
-                    table.PrimaryKey("PK_Grade", x => x.GradeId);
-                });
-
-            migrationBuilder.CreateTable(
-                name: "Students",
-                columns: table => new
-                {
-                    StudentId = table.Column<int>(type: "INTEGER", nullable: false)
-                        .Annotation("Sqlite:Autoincrement", true),
-                    StudentName = table.Column<string>(type: "TEXT", nullable: true),
-                    DateOfBirth = table.Column<DateTime>(type: "TEXT", nullable: true),
-                    Photo = table.Column<byte[]>(type: "BLOB", nullable: true),
-                    Height = table.Column<decimal>(type: "TEXT", nullable: true),
-                    Weight = table.Column<float>(type: "REAL", nullable: true),
-                    GradeId = table.Column<int>(type: "INTEGER", nullable: false)
-                },
-                constraints: table =>
-                {
-                    table.PrimaryKey("PK_Students", x => x.StudentId);
-                    table.ForeignKey(
-                        name: "FK_Students_Grade_GradeId",
-                        column: x => x.GradeId,
-                        principalTable: "Grade",
-                        principalColumn: "GradeId");
-                });
-
-            migrationBuilder.CreateIndex(
-                name: "IX_Students_GradeId",
-                table: "Students",
-                column: "GradeId");
-        }
-
-        protected override void Down(MigrationBuilder migrationBuilder)
-        {
-            migrationBuilder.DropTable(
-                name: "Students");
-
-            migrationBuilder.DropTable(
-                name: "Grade");
-        }
-    }
-}
diff --git a/EF_Code_First/Migrations/20220313151637_V0.2.Designer.cs b/EF_Code_First/Migrations/20220313151637_V0.2.Designer.cs
deleted file mode 100644
index edb42be..0000000
--- a/EF_Code_First/Migrations/20220313151637_V0.2.Designer.cs
+++ /dev/null
@@ -1,88 +0,0 @@
-// <auto-generated />
-using System;
-using EF_Code_First.Models;
-using Microsoft.EntityFrameworkCore;
-using Microsoft.EntityFrameworkCore.Infrastructure;
-using Microsoft.EntityFrameworkCore.Migrations;
-using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
-
-#nullable disable
-
-namespace EF_Code_First.Migrations
-{
-    [DbContext(typeof(SC_DbContext))]
-    [Migration("20220313151637_V0.2")]
-    partial class V02
-    {
-        protected override void BuildTargetModel(ModelBuilder modelBuilder)
-        {
-#pragma warning disable 612, 618
-            modelBuilder.HasAnnotation("ProductVersion", "6.0.3");
-
-            modelBuilder.Entity("EF_Code_First.Models.Grade", b =>
-                {
-                    b.Property<int>("GradeId")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("INTEGER");
-
-                    b.Property<string>("GradeName")
-                        .HasColumnType("TEXT");
-
-                    b.Property<string>("Section")
-                        .HasColumnType("TEXT");
-
-                    b.HasKey("GradeId");
-
-                    b.ToTable("Grades");
-                });
-
-            modelBuilder.Entity("EF_Code_First.Models.Student", b =>
-                {
-                    b.Property<int>("StudentId")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("INTEGER");
-
-                    b.Property<DateTime?>("DateOfBirth")
-                        .HasColumnType("TEXT");
-
-                    b.Property<int>("GradeId")
-                        .HasColumnType("INTEGER");
-
-                    b.Property<decimal?>("Height")
-                        .HasColumnType("TEXT");
-
-                    b.Property<byte[]>("Photo")
-                        .HasColumnType("BLOB");
-
-                    b.Property<string>("StudentName")
-                        .HasColumnType("TEXT");
-
-                    b.Property<float?>("Weight")
-                        .HasColumnType("REAL");
-
-                    b.HasKey("StudentId");
-
-                    b.HasIndex("GradeId");
-
-                    b.ToTable("Students");
-                });
-
-            modelBuilder.Entity("EF_Code_First.Models.Student", b =>
-                {
-                    b.HasOne("EF_Code_First.Models.Grade", "Grade")
-                        .WithMany("Students")
-                        .HasForeignKey("GradeId")
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
-
-                    b.Navigation("Grade");
-                });
-
-            modelBuilder.Entity("EF_Code_First.Models.Grade", b =>
-                {
-                    b.Navigation("Students");
-                });
-#pragma warning restore 612, 618
-        }
-    }
-}
diff --git a/EF_Code_First/Migrations/20220313151637_V0.2.cs b/EF_Code_First/Migrations/20220313151637_V0.2.cs
deleted file mode 100644
index d3f505f..0000000
--- a/EF_Code_First/Migrations/20220313151637_V0.2.cs
+++ /dev/null
@@ -1,64 +0,0 @@
-using Microsoft.EntityFrameworkCore.Migrations;
-
-#nullable disable
-
-namespace EF_Code_First.Migrations
-{
-    public partial class V02 : Migration
-    {
-        protected override void Up(MigrationBuilder migrationBuilder)
-        {
-            migrationBuilder.DropForeignKey(
-                name: "FK_Students_Grade_GradeId",
-                table: "Students");
-
-            migrationBuilder.DropPrimaryKey(
-                name: "PK_Grade",
-                table: "Grade");
-
-            migrationBuilder.RenameTable(
-                name: "Grade",
-                newName: "Grades");
-
-            migrationBuilder.AddPrimaryKey(
-                name: "PK_Grades",
-                table: "Grades",
-                column: "GradeId");
-
-            migrationBuilder.AddForeignKey(
-                name: "FK_Students_Grades_GradeId",
-                table: "Students",
-                column: "GradeId",
-                principalTable: "Grades",
-                principalColumn: "GradeId",
-                onDelete: ReferentialAction.Cascade);
-        }
-
-        protected override void Down(MigrationBuilder migrationBuilder)
-        {
-            migrationBuilder.DropForeignKey(
-                name: "FK_Students_Grades_GradeId",
-                table: "Students");
-
-            migrationBuilder.DropPrimaryKey(
-                name: "PK_Grades",
-                table: "Grades");
-
-            migrationBuilder.RenameTable(
-                name: "Grades",
-                newName: "Grade");
-
-            migrationBuilder.AddPrimaryKey(
-                name: "PK_Grade",
-                table: "Grade",
-                column: "GradeId");
-
-            migrationBuilder.AddForeignKey(
-                name: "FK_Students_Grade_GradeId",
-                table: "Students",
-                column: "GradeId",
-                principalTable: "Grade",
-                principalColumn: "GradeId");
-        }
-    }
-}
diff --git a/EF_Code_First/Migrations/20220313154925_V0.3.Designer.cs b/EF_Code_First/Migrations/20220313154925_V0.3.Designer.cs
deleted file mode 100644
index 52f3267..0000000
--- a/EF_Code_First/Migrations/20220313154925_V0.3.Designer.cs
+++ /dev/null
@@ -1,93 +0,0 @@
-// <auto-generated />
-using System;
-using EF_Code_First.Models;
-using Microsoft.EntityFrameworkCore;
-using Microsoft.EntityFrameworkCore.Infrastructure;
-using Microsoft.EntityFrameworkCore.Migrations;
-using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
-
-#nullable disable
-
-namespace EF_Code_First.Migrations
-{
-    [DbContext(typeof(SC_DbContext))]
-    [Migration("20220313154925_V0.3")]
-    partial class V03
-    {
-        protected override void BuildTargetModel(ModelBuilder modelBuilder)
-        {
-#pragma warning disable 612, 618
-            modelBuilder.HasAnnotation("ProductVersion", "6.0.3");
-
-            modelBuilder.Entity("EF_Code_First.Models.Grade", b =>
-                {
-                    b.Property<int>("GradeId")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("INTEGER");
-
-                    b.Property<string>("GradeName")
-                        .HasColumnType("TEXT");
-
-                    b.Property<string>("Section")
-                        .HasColumnType("TEXT");
-
-                    b.HasKey("GradeId");
-
-                    b.ToTable("Grades");
-                });
-
-            modelBuilder.Entity("EF_Code_First.Models.Student", b =>
-                {
-                    b.Property<int>("StudentId")
-                        .HasColumnType("INTEGER");
-
-                    b.Property<DateTime?>("DateOfBirth")
-                        .HasColumnType("TEXT");
-
-                    b.Property<int>("G_Id")
-                        .HasColumnType("INTEGER");
-
-                    b.Property<decimal?>("Height")
-                        .HasColumnType("TEXT");
-
-                    b.Property<byte[]>("Photo")
-                        .HasColumnType("BLOB");
-
-                    b.Property<string>("StudentName")
-                        .HasColumnType("TEXT");
-
-                    b.Property<float?>("Weight")
-                        .HasColumnType("REAL");
-
-                    b.HasKey("StudentId");
-
-                    b.HasIndex("G_Id");
-
-                    b.ToTable("Students");
-                });
-
-            modelBuilder.Entity("EF_Code_First.Models.Student", b =>
-                {
-                    b.HasOne("EF_Code_First.Models.Grade", "Grade")
-                        .WithMany()
-                        .HasForeignKey("G_Id")
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
-
-                    b.HasOne("EF_Code_First.Models.Grade", null)
-                        .WithMany("Students")
-                        .HasForeignKey("StudentId")
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
-
-                    b.Navigation("Grade");
-                });
-
-            modelBuilder.Entity("EF_Code_First.Models.Grade", b =>
-                {
-                    b.Navigation("Students");
-                });
-#pragma warning restore 612, 618
-        }
-    }
-}
diff --git a/EF_Code_First/Migrations/20220313154925_V0.3.cs b/EF_Code_First/Migrations/20220313154925_V0.3.cs
deleted file mode 100644
index 8c5fb42..0000000
--- a/EF_Code_First/Migrations/20220313154925_V0.3.cs
+++ /dev/null
@@ -1,89 +0,0 @@
-using Microsoft.EntityFrameworkCore.Migrations;
-
-#nullable disable
-
-namespace EF_Code_First.Migrations
-{
-    public partial class V03 : Migration
-    {
-        protected override void Up(MigrationBuilder migrationBuilder)
-        {
-            migrationBuilder.DropForeignKey(
-                name: "FK_Students_Grades_GradeId",
-                table: "Students");
-
-            migrationBuilder.RenameColumn(
-                name: "GradeId",
-                table: "Students",
-                newName: "G_Id");
-
-            migrationBuilder.RenameIndex(
-                name: "IX_Students_GradeId",
-                table: "Students",
-                newName: "IX_Students_G_Id");
-
-            migrationBuilder.AlterColumn<int>(
-                name: "StudentId",
-                table: "Students",
-                type: "INTEGER",
-                nullable: false,
-                oldClrType: typeof(int),
-                oldType: "INTEGER")
-                .OldAnnotation("Sqlite:Autoincrement", true);
-
-            migrationBuilder.AddForeignKey(
-                name: "FK_Students_Grades_G_Id",
-                table: "Students",
-                column: "G_Id",
-                principalTable: "Grades",
-                principalColumn: "GradeId",
-                onDelete: ReferentialAction.Cascade);
-
-            migrationBuilder.AddForeignKey(
-                name: "FK_Students_Grades_StudentId",
-                table: "Students",
-                column: "StudentId",
-                principalTable: "Grades",
-                principalColumn: "GradeId",
-                onDelete: ReferentialAction.Cascade);
-        }
-
-        protected override void Down(MigrationBuilder migrationBuilder)
-        {
-            migrationBuilder.DropForeignKey(
-                name: "FK_Students_Grades_G_Id",
-                table: "Students");
-
-            migrationBuilder.DropForeignKey(
-                name: "FK_Students_Grades_StudentId",
-                table: "Students");
-
-            migrationBuilder.RenameColumn(
-                name: "G_Id",
-                table: "Students",
-                newName: "GradeId");
-
-            migrationBuilder.RenameIndex(
-                name: "IX_Students_G_Id",
-                table: "Students",
-                newName: "IX_Students_GradeId");
-
-            migrationBuilder.AlterColumn<int>(
-                name: "StudentId",
-                table: "Students",
-                type: "INTEGER",
-                nullable: false,
-                oldClrType: typeof(int),
-                oldType: "INTEGER")
-                .Annotation("Sqlite:Autoincrement", true);
-
-            migrationBuilder.AddForeignKey(
-                name: "FK_Students_Grades_GradeId",
-                table: "Students",
-                column: "GradeId",
-                principalTable: "Grades",
-                principalColumn: "GradeId",
-                onDelete: ReferentialAction.Cascade);
-        }
-    }
-}
diff --git a/EF_Code_First/Migrations/SC_DbContextModelSnapshot.cs b/EF_Code_First/Migrations/SC_DbContextModelSnapshot.cs
deleted file mode 100644
index 6f9d2cd..0000000
--- a/EF_Code_First/Migrations/SC_DbContextModelSnapshot.cs
+++ /dev/null
@@ -1,91 +0,0 @@
-// <auto-generated />
-using System;
-using EF_Code_First.Models;
-using Microsoft.EntityFrameworkCore;
-using Microsoft.EntityFrameworkCore.Infrastructure;
-using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
-
-#nullable disable
-
-namespace EF_Code_First.Migrations
-{
-    [DbContext(typeof(SC_DbContext))]
-    partial class SC_DbContextModelSnapshot : ModelSnapshot
-    {
-        protected override void BuildModel(ModelBuilder modelBuilder)
-        {
-#pragma warning disable 612, 618
-            modelBuilder.HasAnnotation("ProductVersion", "6.0.3");
-
-            modelBuilder.Entity("EF_Code_First.Models.Grade", b =>
-                {
-                    b.Property<int>("GradeId")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("INTEGER");
-
-                    b.Property<string>("GradeName")
-                        .HasColumnType("TEXT");
-
-                    b.Property<string>("Section")
-                        .HasColumnType("TEXT");
-
-                    b.HasKey("GradeId");
-
-                    b.ToTable("Grades");
-                });
-
-            modelBuilder.Entity("EF_Code_First.Models.Student", b =>
-                {
-                    b.Property<int>("StudentId")
-                        .HasColumnType("INTEGER");
-
-                    b.Property<DateTime?>("DateOfBirth")
-                        .HasColumnType("TEXT");
-
-                    b.Property<int>("G_Id")
-                        .HasColumnType("INTEGER");
-
-                    b.Property<decimal?>("Height")
-                        .HasColumnType("TEXT");
-
-                    b.Property<byte[]>("Photo")
-                        .HasColumnType("BLOB");
-
-                    b.Property<string>("StudentName")
-                        .HasColumnType("TEXT");
-
-                    b.Property<float?>("Weight")
-                        .HasColumnType("REAL");
-
-                    b.HasKey("StudentId");
-
-                    b.HasIndex("G_Id");
-
-                    b.ToTable("Students");
-                });
-
-            modelBuilder.Entity("EF_Code_First.Models.Student", b =>
-                {
-                    b.HasOne("EF_Code_First.Models.Grade", "Grade")
-                        .WithMany()
-                        .HasForeignKey("G_Id")
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
-
-                    b.HasOne("EF_Code_First.Models.Grade", null)
-                        .WithMany("Students")
-                        .HasForeignKey("StudentId")
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
-
-                    b.Navigation("Grade");
-                });
-
-            modelBuilder.Entity("EF_Code_First.Models.Grade", b =>
-                {
-                    b.Navigation("Students");
-                });
-#pragma warning restore 612, 618
-        }
-    }
-}
diff --git a/EF_Code_First/SC_DbContext.dgml b/EF_Code_First/SC_DbContext.dgml
deleted file mode 100644
index dc7d85e..0000000
--- a/EF_Code_First/SC_DbContext.dgml
+++ /dev/null
@@ -1,106 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<DirectedGraph GraphDirection="LeftToRight" xmlns="http://schemas.microsoft.com/vs/2009/dgml">
-  <Nodes>
-<Node Id="IModel" Label="SC_DbContext" ChangeTrackingStrategy="ChangeTrackingStrategy.Snapshot" PropertyAccessMode="PropertyAccessMode.Default" ProductVersion="6.0.3" Annotations="BaseTypeDiscoveryConvention:DerivedTypes: System.Collections.Generic.Dictionary`2[System.Type,System.Collections.Generic.List`1[Microsoft.EntityFrameworkCore.Metadata.IConventionEntityType]]
-RelationshipDiscoveryConvention:InverseNavigationCandidates: System.Collections.Generic.Dictionary`2[System.Type,System.Collections.Generic.SortedSet`1[System.Type]]" Category="Model" Group="Expanded" />
-<Node Id = "Grade" Label="Grade" Name="Grade" BaseClass="" IsAbstract="False" ChangeTrackingStrategy="ChangeTrackingStrategy.Snapshot"  Annotations="Relational:TableName: Grades
-RelationshipDiscoveryConvention:NavigationCandidates: System.Collections.Immutable.ImmutableSortedDictionary`2[System.Reflection.PropertyInfo,System.ValueTuple`2[System.Type,System.Nullable`1[System.Boolean]]]" Category="EntityType" Group="Expanded" />
-<Node Id = "Student" Label="Student" Name="Student" BaseClass="" IsAbstract="False" ChangeTrackingStrategy="ChangeTrackingStrategy.Snapshot"  Annotations="Relational:TableName: Students
-RelationshipDiscoveryConvention:NavigationCandidates: System.Collections.Immutable.ImmutableSortedDictionary`2[System.Reflection.PropertyInfo,System.ValueTuple`2[System.Type,System.Nullable`1[System.Boolean]]]" Category="EntityType" Group="Expanded" />
-<Node Id = "Grade.GradeId" Label="GradeId" Name="GradeId" Category="Property Primary" Type="int" MaxLength="None" Field="" PropertyAccessMode="PropertyAccessMode.Default" BeforeSaveBehavior="PropertySaveBehavior.Save" AfterSaveBehavior="PropertySaveBehavior.Save" Annotations="" IsPrimaryKey="True" IsForeignKey="False" IsRequired="True" IsIndexed="False" IsShadow="False" IsAlternateKey="False" IsConcurrencyToken="False" IsUnicode="True" ValueGenerated="ValueGenerated.OnAdd" />
-<Node Id = "Grade.Students" Label="Students (*)" Name="Students" Category="Navigation Collection" Type="ICollection&lt;Student&gt;"  Field="" Dependent="Student" Principal="" Inverse="" PropertyAccessMode="PropertyAccessMode.Default" />
-<Node Id = "Grade.GradeName" Label="GradeName" Name="GradeName" Category="Property Optional" Type="string" MaxLength="None" Field="" PropertyAccessMode="PropertyAccessMode.Default" BeforeSaveBehavior="PropertySaveBehavior.Save" AfterSaveBehavior="PropertySaveBehavior.Save" Annotations="" IsPrimaryKey="False" IsForeignKey="False" IsRequired="False" IsIndexed="False" IsShadow="False" IsAlternateKey="False" IsConcurrencyToken="False" IsUnicode="True" ValueGenerated="None" />
-<Node Id = "Grade.Section" Label="Section" Name="Section" Category="Property Optional" Type="string" MaxLength="None" Field="" PropertyAccessMode="PropertyAccessMode.Default" BeforeSaveBehavior="PropertySaveBehavior.Save" AfterSaveBehavior="PropertySaveBehavior.Save" Annotations="" IsPrimaryKey="False" IsForeignKey="False" IsRequired="False" IsIndexed="False" IsShadow="False" IsAlternateKey="False" IsConcurrencyToken="False" IsUnicode="True" ValueGenerated="None" />
-<Node Id = "Student" Label="Student" Name="Student" BaseClass="" IsAbstract="False" ChangeTrackingStrategy="ChangeTrackingStrategy.Snapshot"  Annotations="" Category="EntityType" Group="Expanded" />
-<Node Id = "Student.StudentId" Label="StudentId" Name="StudentId" Category="Property Primary" Type="int" MaxLength="None" Field="" PropertyAccessMode="PropertyAccessMode.Default" BeforeSaveBehavior="PropertySaveBehavior.Save" AfterSaveBehavior="PropertySaveBehavior.Save" Annotations="" IsPrimaryKey="True" IsForeignKey="True" IsRequired="True" IsIndexed="False" IsShadow="False" IsAlternateKey="False" IsConcurrencyToken="False" IsUnicode="True" ValueGenerated="None" />
-<Node Id = "Student.Grade" Label="Grade (1)" Name="Grade" Category="Navigation Property" Type="Grade"  Field="" Dependent="" Principal="Grade" Inverse="" PropertyAccessMode="PropertyAccessMode.Default" />
-<Node Id = "Student.DateOfBirth" Label="DateOfBirth" Name="DateOfBirth" Category="Property Optional" Type="DateTime?" MaxLength="None" Field="" PropertyAccessMode="PropertyAccessMode.Default" BeforeSaveBehavior="PropertySaveBehavior.Save" AfterSaveBehavior="PropertySaveBehavior.Save" Annotations="" IsPrimaryKey="False" IsForeignKey="False" IsRequired="False" IsIndexed="False" IsShadow="False" IsAlternateKey="False" IsConcurrencyToken="False" IsUnicode="True" ValueGenerated="None" />
-<Node Id = "Student.G_Id" Label="G_Id" Name="G_Id" Category="Property Foreign" Type="int" MaxLength="None" Field="" PropertyAccessMode="PropertyAccessMode.Default" BeforeSaveBehavior="PropertySaveBehavior.Save" AfterSaveBehavior="PropertySaveBehavior.Save" Annotations="" IsPrimaryKey="False" IsForeignKey="True" IsRequired="True" IsIndexed="True" IsShadow="False" IsAlternateKey="False" IsConcurrencyToken="False" IsUnicode="True" ValueGenerated="None" />
-<Node Id = "Student.Height" Label="Height" Name="Height" Category="Property Optional" Type="decimal?" MaxLength="None" Field="" PropertyAccessMode="PropertyAccessMode.Default" BeforeSaveBehavior="PropertySaveBehavior.Save" AfterSaveBehavior="PropertySaveBehavior.Save" Annotations="" IsPrimaryKey="False" IsForeignKey="False" IsRequired="False" IsIndexed="False" IsShadow="False" IsAlternateKey="False" IsConcurrencyToken="False" IsUnicode="True" ValueGenerated="None" />
-<Node Id = "Student.Photo" Label="Photo" Name="Photo" Category="Property Optional" Type="byte[]" MaxLength="None" Field="" PropertyAccessMode="PropertyAccessMode.Default" BeforeSaveBehavior="PropertySaveBehavior.Save" AfterSaveBehavior="PropertySaveBehavior.Save" Annotations="" IsPrimaryKey="False" IsForeignKey="False" IsRequired="False" IsIndexed="False" IsShadow="False" IsAlternateKey="False" IsConcurrencyToken="False" IsUnicode="True" ValueGenerated="None" />
-<Node Id = "Student.StudentName" Label="StudentName" Name="StudentName" Category="Property Optional" Type="string" MaxLength="None" Field="" PropertyAccessMode="PropertyAccessMode.Default" BeforeSaveBehavior="PropertySaveBehavior.Save" AfterSaveBehavior="PropertySaveBehavior.Save" Annotations="" IsPrimaryKey="False" IsForeignKey="False" IsRequired="False" IsIndexed="False" IsShadow="False" IsAlternateKey="False" IsConcurrencyToken="False" IsUnicode="True" ValueGenerated="None" />
-<Node Id = "Student.Weight" Label="Weight" Name="Weight" Category="Property Optional" Type="float?" MaxLength="None" Field="" PropertyAccessMode="PropertyAccessMode.Default" BeforeSaveBehavior="PropertySaveBehavior.Save" AfterSaveBehavior="PropertySaveBehavior.Save" Annotations="" IsPrimaryKey="False" IsForeignKey="False" IsRequired="False" IsIndexed="False" IsShadow="False" IsAlternateKey="False" IsConcurrencyToken="False" IsUnicode="True" ValueGenerated="None" />
-  </Nodes>
-  <Links>
-<Link Source = "IModel" Target="Grade" Category="Contains" />
-<Link Source = "IModel" Target="Student" Category="Contains" />
-<Link Source = "Grade" Target="Grade.Students" Category="Contains" />
-<Link Source = "Grade" Target="Grade.GradeId" Category="Contains" />
-<Link Source = "Grade" Target="Grade.GradeName" Category="Contains" />
-<Link Source = "Grade" Target="Grade.Section" Category="Contains" />
-<Link Source = "IModel" Target="Student" Category="Contains" />
-<Link Source = "Student" Target="Student.Grade" Category="Contains" />
-<Link Source = "Student" Target="Student.StudentId" Category="Contains" />
-<Link Source="Student" Target="Grade" From="Student.G_Id" To="Grade.GradeId" Name="Student -> Grade" Annotations="" IsUnique="False" Label="1:*" Category="Foreign Key" />
-<Link Source="Student" Target="Grade" From="Student.StudentId" To="Grade.GradeId" Name="Student -> Grade" Annotations="" IsUnique="False" Label="1:*" Category="Foreign Key" />
-<Link Source = "Student" Target="Student.DateOfBirth" Category="Contains" />
-<Link Source = "Student" Target="Student.G_Id" Category="Contains" />
-<Link Source = "Student" Target="Student.Height" Category="Contains" />
-<Link Source = "Student" Target="Student.Photo" Category="Contains" />
-<Link Source = "Student" Target="Student.StudentName" Category="Contains" />
-<Link Source = "Student" Target="Student.Weight" Category="Contains" />
-  </Links>
-  <Styles>
-    <Style TargetType="Node" GroupLabel="EntityType" ValueLabel="True">
-      <Condition Expression="HasCategory('EntityType')" />
-      <Setter Property="Background" Value="#FFC0C0C0" />
-    </Style>
-    <Style TargetType="Node" GroupLabel="Property Primary" ValueLabel="True">
-      <Condition Expression="HasCategory('Property Primary')" />
-      <Setter Property="Background" Value="#FF008000" />
-    </Style>
-    <Style TargetType="Node" GroupLabel="Property Optional" ValueLabel="True">
-      <Condition Expression="HasCategory('Property Optional')" />
-      <Setter Property="Background" Value="#FF808040" />
-    </Style>
-    <Style TargetType="Node" GroupLabel="Property Foreign" ValueLabel="True">
-      <Condition Expression="HasCategory('Property Foreign')" />
-      <Setter Property="Background" Value="#FF8080FF" />
-    </Style>
-    <Style TargetType="Node" GroupLabel="Property Required" ValueLabel="True">
-      <Condition Expression="HasCategory('Property Required')" />
-      <Setter Property="Background" Value="#FFC0A000" />
-    </Style>
-    <Style TargetType="Node" GroupLabel="Navigation Property" ValueLabel="True">
-      <Condition Expression="HasCategory('Navigation Property')" />
-      <Setter Property="Background" Value="#FF990000" />
-    </Style>
-    <Style TargetType="Node" GroupLabel="Navigation Collection" ValueLabel="True">
-      <Condition Expression="HasCategory('Navigation Collection')" />
-      <Setter Property="Background" Value="#FFFF3232" />
-    </Style>
-    <Style TargetType="Node" GroupLabel="Model" ValueLabel="True">
-      <Condition Expression="HasCategory('Model')" />
-      <Setter Property="Background" Value="#FFFFFFFF" />
-    </Style>
-  </Styles>
-  <Properties>
-    <Property Id="Name" Group="Model Properties" DataType="System.String" />
-    <Property Id="Field"  Description="Backing field" Group="Model Properties" DataType="System.String" />
-    <Property Id="Type"  Description="CLR data type" Group="Model Properties" DataType="System.String" />
-    <Property Id="To" Description="Source property" Group="Model Properties" DataType="System.String" />
-    <Property Id="From" Description="Target property" Group="Model Properties" DataType="System.String" />
-    <Property Id="Dependent" Description="Dependent entity" Group="Model Properties" DataType="System.String" />
-    <Property Id="Inverse" Description="Inverse entity" Group="Model Properties" DataType="System.String" />
-    <Property Id="Principal" Description="Principal entity" Group="Model Properties" DataType="System.String" />    
-    <Property Id="Annotations" Description="Annotations" Group="Model Properties" DataType="System.String" />
-    <Property Id="BaseClass"  Description="Base class" Group="Model Properties" DataType="System.String" />
-    <Property Id="ChangeTrackingStrategy" Description="Change tracking strategy" Group="Model Properties" DataType="System.String" />
-    <Property Id="IsUnique" Group="Model Properties" DataType="System.Boolean" />
-    <Property Id="IsAbstract" Group="Model Properties" DataType="System.Boolean" />
-    <Property Id="ProductVersion" Label="Product Version" Description="EF Core product version" Group="Model Properties" DataType="System.String" />
-    <Property Id="IsIndexed" Group="Property Flags" DataType="System.Boolean" />
-    <Property Id="IsRequired" Group="Property Flags" DataType="System.Boolean" />
-    <Property Id="IsPrimaryKey" Group="Property Flags" DataType="System.Boolean" />
-    <Property Id="IsForeignKey" Group="Property Flags" DataType="System.Boolean" />
-    <Property Id="IsShadow" Group="Property Flags" DataType="System.Boolean" />
-    <Property Id="IsAlternateKey" Group="Property Flags" DataType="System.Boolean" />
-    <Property Id="IsConcurrencyToken" Group="Property Flags" DataType="System.Boolean" />
-    <Property Id="IsIndexed" Group="Property Flags" DataType="System.Boolean" />
-    <Property Id="IsUnicode" Group="Property Flags" DataType="System.Boolean" />
-    <Property Id="ValueGenerated" Group="Property Flags" DataType="System.String" />
-    <Property Id="BeforeSaveBehavior" Group="Property Flags" DataType="System.String" />
-    <Property Id="AfterSaveBehavior" Group="Property Flags" DataType="System.String" />
-    <Property Id="PropertyAccessMode" Group="Property Flags" DataType="System.String" />
-  </Properties>
-</DirectedGraph>
\ No newline at end of file