Ну теперь точно финалочка.

TransportCompany/TransportCompany/FormTimeCheck.Designer.cs

@@ -0,0 +1,117 @@
+namespace TransportCompany
+{
+    partial class FormTimeCheck
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            buttonStartTest = new Button();
+            buttonCancel = new Button();
+            label1 = new Label();
+            textBoxCount = new TextBox();
+            label2 = new Label();
+            textBoxTimeWork = new TextBox();
+            SuspendLayout();
+            // 
+            // buttonStartTest
+            // 
+            buttonStartTest.Location = new Point(123, 22);
+            buttonStartTest.Name = "buttonStartTest";
+            buttonStartTest.Size = new Size(257, 75);
+            buttonStartTest.TabIndex = 0;
+            buttonStartTest.Text = "Запуск теста";
+            buttonStartTest.UseVisualStyleBackColor = true;
+            buttonStartTest.Click += ButtonStartTest_Click;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(361, 241);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(94, 30);
+            buttonCancel.TabIndex = 1;
+            buttonCancel.Text = "Закрыть";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += ButtonCancel_Click;
+            // 
+            // label1
+            // 
+            label1.AutoSize = true;
+            label1.Location = new Point(25, 131);
+            label1.Name = "label1";
+            label1.Size = new Size(230, 20);
+            label1.TabIndex = 2;
+            label1.Text = "Кол-во считываемых значений:";
+            // 
+            // textBoxCount
+            // 
+            textBoxCount.Location = new Point(284, 128);
+            textBoxCount.Name = "textBoxCount";
+            textBoxCount.Size = new Size(171, 27);
+            textBoxCount.TabIndex = 3;
+            // 
+            // label2
+            // 
+            label2.AutoSize = true;
+            label2.Location = new Point(25, 186);
+            label2.Name = "label2";
+            label2.Size = new Size(113, 20);
+            label2.TabIndex = 4;
+            label2.Text = "Время работы:";
+            // 
+            // textBoxTimeWork
+            // 
+            textBoxTimeWork.Location = new Point(284, 183);
+            textBoxTimeWork.Name = "textBoxTimeWork";
+            textBoxTimeWork.Size = new Size(171, 27);
+            textBoxTimeWork.TabIndex = 5;
+            // 
+            // FormTimeCheck
+            // 
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(480, 285);
+            Controls.Add(textBoxTimeWork);
+            Controls.Add(label2);
+            Controls.Add(textBoxCount);
+            Controls.Add(label1);
+            Controls.Add(buttonCancel);
+            Controls.Add(buttonStartTest);
+            Name = "FormTimeCheck";
+            Text = "Тест скорости чтения записей перевозок";
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Button buttonStartTest;
+        private Button buttonCancel;
+        private Label label1;
+        private TextBox textBoxCount;
+        private Label label2;
+        private TextBox textBoxTimeWork;
+    }
+}

TransportCompany/TransportCompany/FormTimeCheck.cs

@@ -0,0 +1,51 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+using TransportCompanyBusinessLogic.BusinessLogic;
+using TransportCompanyContracts.BusinessLogicsContracts;
+
+namespace TransportCompany
+{
+    //форма за измерения времени считывания значений
+    public partial class FormTimeCheck : Form
+    {
+        private readonly ITruckingLogic _truckingLogic;
+
+        public FormTimeCheck(ITruckingLogic truckingLogic)
+        {
+            InitializeComponent();
+
+            _truckingLogic = truckingLogic;
+        }
+
+        private void ButtonStartTest_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                var result = _truckingLogic.TestReadList();
+
+                string[] parameters = result.Split(' ');
+
+                textBoxCount.Text = parameters[0];
+
+                textBoxTimeWork.Text = parameters[1];
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ButtonCancel_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.Cancel;
+            Close();
+        }
+    }
+}

TransportCompany/TransportCompany/FormTimeCheck.resx

@@ -0,0 +1,60 @@
+<root>
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

TransportCompany/TransportCompany/FormTrucking.Designer.cs

@@ -44,6 +44,7 @@
             label1 = new Label();
             checkBoxSorted = new CheckBox();
             checkBoxForFilterMode = new CheckBox();
+            testTimeGetDataToolStripMenuItem = new ToolStripMenuItem();
             ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
             menuStrip.SuspendLayout();
             SuspendLayout();
@@ -71,7 +72,7 @@
             // menuStrip
             // 
             menuStrip.ImageScalingSize = new Size(20, 20);
-            menuStrip.Items.AddRange(new ToolStripItem[] { toolStripMenuItem, rndGenerationToolStripMenuItem });
+            menuStrip.Items.AddRange(new ToolStripItem[] { toolStripMenuItem, rndGenerationToolStripMenuItem, testTimeGetDataToolStripMenuItem });
             menuStrip.Location = new Point(0, 0);
             menuStrip.Name = "menuStrip";
             menuStrip.Padding = new Padding(6, 3, 0, 3);
@@ -184,6 +185,13 @@
             checkBoxForFilterMode.Text = "Включить режим фильтра";
             checkBoxForFilterMode.UseVisualStyleBackColor = true;
             // 
+            // testTimeGetDataToolStripMenuItem
+            // 
+            testTimeGetDataToolStripMenuItem.Name = "testTimeGetDataToolStripMenuItem";
+            testTimeGetDataToolStripMenuItem.Size = new Size(227, 24);
+            testTimeGetDataToolStripMenuItem.Text = "Тест скорости чтения данных";
+            testTimeGetDataToolStripMenuItem.Click += TestTimeGetDataToolStripMenuItem_Click;
+            // 
             // FormTrucking
             // 
             AutoScaleDimensions = new SizeF(8F, 20F);
@@ -239,5 +247,6 @@
         private Label label1;
         private CheckBox checkBoxSorted;
         private CheckBox checkBoxForFilterMode;
+        private ToolStripMenuItem testTimeGetDataToolStripMenuItem;
     }
 }

TransportCompany/TransportCompany/FormTrucking.cs

@@ -150,7 +150,7 @@ namespace TransportCompany
 
         private void ComboBoxEmails_SelectedIndexChanged(object sender, EventArgs e)
         {
-            if(!checkBoxForFilterMode.Checked)
+            if (!checkBoxForFilterMode.Checked)
             {
                 //dataGridView.DataSource = _truckingLogic.ReadList(null);
                 LoadData();
@@ -165,5 +165,16 @@ namespace TransportCompany
         {
             dataGridView.DataSource = _truckingLogic.ReadList(null).OrderByDescending(x => x.Price).ToList();
         }
+
+        private void TestTimeGetDataToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormTimeCheck));
+
+            if (service is FormTimeCheck form)
+            {
+                form.ShowDialog();
+                LoadData();
+            }
+        }
     }
 }

TransportCompany/TransportCompany/Program.cs

@@ -61,6 +61,7 @@ namespace TransportCompany
 			services.AddTransient<FormCreateTypeTransportation>();
 			services.AddTransient<FormRandomCreateClient>();
 			services.AddTransient<FormRandomCreateTrucking>();
+			services.AddTransient<FormTimeCheck>();
 		}
 	}
 }

TransportCompany/TransportCompanyBusinessLogic/BusinessLogic/TruckingLogic.cs

@@ -44,6 +44,12 @@ namespace TransportCompanyBusinessLogic.BusinessLogic
 			return list;
 		}
 
+		//для замера времени считывания значений
+        public string? TestReadList()
+        {
+			return _truckingStorage.TestGetFullList();
+        }
+
         public TruckingViewModel? ReadElement(TruckingSearchModel model)
 		{
 			if (model == null)

TransportCompany/TransportCompanyContracts/BusinessLogicsContracts/ITruckingLogic.cs

@@ -13,6 +13,8 @@ namespace TransportCompanyContracts.BusinessLogicsContracts
 	{
 		List<TruckingViewModel>? ReadList(TruckingSearchModel? model);
 
+        string? TestReadList();
+
         TruckingViewModel? ReadElement(TruckingSearchModel model);
 
 		bool Create(TruckingBindingModel model);

TransportCompany/TransportCompanyContracts/StoragesContracts/ITruckingStorage.cs

@@ -13,6 +13,8 @@ namespace TransportCompanyContracts.StoragesContracts
 	{
 		List<TruckingViewModel> GetFullList();
 
+		string TestGetFullList();
+
         List<TruckingViewModel> GetFilteredList(TruckingSearchModel model);
 
 		TruckingViewModel? GetElement(TruckingSearchModel model);

TransportCompany/TransportCompanyDatabaseImplements/Implements/TruckingStorage.cs

@@ -75,6 +75,35 @@ namespace TransportCompanyDatabaseImplements.Implements
 				.ToList();
 		}
 
+
+        public string TestGetFullList()
+        {
+            using var context = new ElegevContext();
+
+			string result = null;
+
+            //для замера времени считывания из бд
+            Stopwatch stopwatch = new();
+
+            stopwatch.Start();
+
+			List<TruckingViewModel> list = context.Truckings
+                    .Include(x => x.Transport)
+                    .Include(x => x.Cargo)
+                    .Include(x => x.Transportation)
+                    .Include(x => x.Client)
+                    .Select(x => x.GetViewModel)
+                    .ToList();
+
+            stopwatch.Stop();
+
+			result = list.Count.ToString();
+
+			list.Clear();
+
+            return result + " " + stopwatch.ElapsedMilliseconds.ToString();
+        }
+
         public TruckingViewModel? Insert(TruckingBindingModel model)
 		{
 			using var context = new ElegevContext();