Some Fix

Samples/Modbus.Net.Modbus.Test/Migrations/20230212103438_InitialCreate.cs

@@ -0,0 +1,50 @@
+using System;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace Modbus.Net.Modbus.Test.Migrations
+{
+    /// <inheritdoc />
+    public partial class InitialCreate : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AlterDatabase()
+                .Annotation("MySql:CharSet", "utf8mb4");
+
+            migrationBuilder.CreateTable(
+                name: "DatabaseWrites",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("MySql:ValueGenerationStrategy", MySqlValueGenerationStrategy.IdentityColumn),
+                    Value1 = table.Column<double>(type: "double", nullable: true),
+                    Value2 = table.Column<double>(type: "double", nullable: true),
+                    Value3 = table.Column<double>(type: "double", nullable: true),
+                    Value4 = table.Column<double>(type: "double", nullable: true),
+                    Value5 = table.Column<double>(type: "double", nullable: true),
+                    Value6 = table.Column<double>(type: "double", nullable: true),
+                    Value7 = table.Column<double>(type: "double", nullable: true),
+                    Value8 = table.Column<double>(type: "double", nullable: true),
+                    Value9 = table.Column<double>(type: "double", nullable: true),
+                    Value10 = table.Column<double>(type: "double", nullable: true),
+                    UpdateTime = table.Column<DateTime>(type: "datetime(6)", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_DatabaseWrites", x => x.Id);
+                })
+                .Annotation("MySql:CharSet", "utf8mb4");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "DatabaseWrites");
+        }
+    }
+}