示例#1
0
        private void button8_Click(object sender, EventArgs e)
        {
            using (KPgamenotebookContext db = new KPgamenotebookContext())
            {
                Word cOMFormatter = new Word(@"C:\Users\ReaLBERG\Desktop\3 курс\АИС\Отчеты\lb9ttотзывы.doc");


                int      num   = Convert.ToInt32(textBox14.Text);
                string[] start = new string[3] {
                    "ID", "Оценка", "Отзыв"
                };
                var       review  = db.Reviews;
                Reviews[] reviews = new Reviews[num];
                int       ID      = Convert.ToInt32(textBox13.Text);
                int       y       = 0;
                foreach (var t in review)
                {
                    if (t.ID_model == ID)
                    {
                        reviews[y] = t;

                        y++;
                    }
                }
                cOMFormatter.TableCreateReview(num + 1, start.Length, start, reviews);
                cOMFormatter.Replace("{Имя}", textBox12.Text);
            }
        }
示例#2
0
        private void button7_Click(object sender, EventArgs e)
        {
            using (KPgamenotebookContext db = new KPgamenotebookContext())
            {
                string c     = Convert.ToString(comboBox2.SelectedItem);
                string d     = Convert.ToString(comboBox3.SelectedItem);
                string p     = Convert.ToString(comboBox4.SelectedItem);
                Model  model = new Model();
                int    id;

                using (StreamReader sr = new StreamReader(@"C:\Users\ReaLBERG\Desktop\3 курс\АИС\createnote.txt"))
                {
                    id = Convert.ToInt32(sr.ReadToEnd());
                }
                id++;
                using (StreamWriter sw = new StreamWriter(@"C:\Users\ReaLBERG\Desktop\3 курс\АИС\createnote.txt", false, System.Text.Encoding.Default))
                {
                    sw.WriteLine(id);
                }
                model.ID_model = id;
                model.Href     = "https://www.mvideo.ru/product-list-page-cls?q=%D0%B8%D0%B3%D1%80%D0%BE%D0%B2%D1%8B%D0%B5+%D0%BD%D0%BE%D1%83%D1%82%D0%B1%D1%83%D0%BA%D0%B8&region_id=2&limit=12";
                model.Name     = textBox21.Text;
                model.Price    = textBox20.Text;
                model.Rating   = textBox19.Text;
                model.SSD      = textBox18.Text;
                model.RAM      = Convert.ToInt32(textBox17.Text);
                model.ID_CPU   = db.CPU.FirstOrDefault(r => r.Name == c).ID_CPU;
                model.ID_GC    = db.Graphiccard.FirstOrDefault(r => r.Name == d).ID_GC;
                model.ID_firm  = db.Firm.FirstOrDefault(r => r.Name_firm == p).ID_firm;
                db.Model.Add(model);
                db.SaveChanges();
                WriteALL();
            }
        }
示例#3
0
 private void Delete()
 {
     using (KPgamenotebookContext db = new KPgamenotebookContext())
     {
         var obj = db.Reviews;
         foreach (Reviews u in obj)
         {
             if (u.ID_model == Convert.ToInt32(textBox2.Text))
             {
                 db.Reviews.Remove(u);
             }
         }
         db.SaveChanges();
         var obj2 = db.Model;
         foreach (Model u in obj2)
         {
             if (u.ID_model == Convert.ToInt32(textBox2.Text))
             {
                 db.Model.Remove(u);
             }
         }
         db.SaveChanges();
         ListView.SelectedIndexCollection collection = listView1.SelectedIndices;
         if (collection.Count != 0)
         {
             listView1.Items.RemoveAt(collection[0]);
         }
         WriteALL();
     }
 }
示例#4
0
        private void WriteALL()
        {
            listView1.Items.Clear();
            using (KPgamenotebookContext db = new KPgamenotebookContext())
            {
                comboBox5.Items.Clear();
                comboBox8.Items.Clear();
                comboBox9.Items.Clear();
                listView1.Items.Clear();
                comboBox2.Items.Clear();
                comboBox3.Items.Clear();
                comboBox4.Items.Clear();
                textBox13.Clear();
                comboBox2.SelectedItem = null;
                comboBox3.SelectedItem = null;
                comboBox4.SelectedItem = null;
                comboBox5.SelectedItem = null;
                comboBox8.SelectedItem = null;
                comboBox9.SelectedItem = null;
                textBox12.Clear();
                textBox14.Clear();
                var obj  = db.Model;
                var obj2 = db.CPU;
                var obj3 = db.Graphiccard;
                var obj4 = db.Firm;

                foreach (Model u in obj)
                {
                    var item1 = new ListViewItem(new[] { Convert.ToString(u.ID_model), u.Name, u.Price, u.Rating, u.SSD, Convert.ToString(u.RAM), db.Firm.FirstOrDefault(q => q.ID_firm == u.ID_firm).Name_firm, db.CPU.FirstOrDefault(q => q.ID_CPU == u.ID_CPU).Name, db.CPU.FirstOrDefault(q => q.ID_CPU == u.ID_CPU).Frequency, db.Graphiccard.FirstOrDefault(q => q.ID_GC == u.ID_GC).Name });
                    listView1.Items.Add(item1);
                }
                foreach (CPU u in obj2)
                {
                    comboBox2.Items.Add(u.Name);
                    comboBox1.Items.Add(u.Name);
                    comboBox9.Items.Add(u.Name);
                }
                foreach (Graphiccard u in obj3)
                {
                    comboBox3.Items.Add(u.Name);
                    comboBox6.Items.Add(u.Name);
                    comboBox8.Items.Add(u.Name);
                }
                foreach (Firm u in obj4)
                {
                    comboBox4.Items.Add(u.Name_firm);
                    comboBox7.Items.Add(u.Name_firm);
                    comboBox5.Items.Add(u.Name_firm);
                }
            }
        }
示例#5
0
 private void button5_Click(object sender, EventArgs e)
 {
     using (KPgamenotebookContext db = new KPgamenotebookContext())
     {
         try
         {
             int          id          = Convert.ToInt32(textBox2.Text);
             string       url         = db.Model.FirstOrDefault(r => r.ID_model == id).Href;
             const string browserPath = @"C:\Program Files\Google\Chrome\Application\chrome.exe";
             Process.Start(browserPath, url);
         }
         catch { MessageBox.Show("У данного ноутбука нет ссылки"); }
     }
 }
示例#6
0
 private void button13_Click(object sender, EventArgs e)
 {
     using (KPgamenotebookContext db = new KPgamenotebookContext())
     {
         string a  = Convert.ToString(comboBox9.SelectedItem);
         int    id = db.CPU.FirstOrDefault(r => r.Name == a).ID_CPU;
         foreach (Model u in db.Model)
         {
             if (u.ID_CPU == id)
             {
                 u.ID_CPU = null;
             }
         }
         db.SaveChanges();
         foreach (CPU u in db.CPU)
         {
             if (u.ID_CPU == id)
             {
                 db.CPU.Remove(u);
             }
         }
         db.SaveChanges();
         CPU header = new CPU();
         header.ID_CPU = id;
         header.Name   = textBox9.Text;
         string name = textBox9.Text;
         header.Frequency = textBox11.Text;
         db.CPU.Add(header);
         db.SaveChanges();
         int id2 = db.CPU.FirstOrDefault(r => r.Name == name).ID_CPU;
         foreach (Model u in db.Model)
         {
             if (u.ID_CPU == null)
             {
                 u.ID_CPU = id2;
             }
         }
         db.SaveChanges();
         WriteALL();
     }
 }
示例#7
0
 private void button12_Click(object sender, EventArgs e)
 {
     using (KPgamenotebookContext db = new KPgamenotebookContext())
     {
         string a  = Convert.ToString(comboBox8.SelectedItem);
         int    id = db.Graphiccard.FirstOrDefault(r => r.Name == a).ID_GC;
         foreach (Model u in db.Model)
         {
             if (u.ID_GC == id)
             {
                 u.ID_GC = null;
             }
         }
         db.SaveChanges();
         foreach (Graphiccard u in db.Graphiccard)
         {
             if (u.ID_GC == id)
             {
                 db.Graphiccard.Remove(u);
             }
         }
         db.SaveChanges();
         Graphiccard header = new Graphiccard();
         header.ID_GC = id;
         header.Name  = textBox8.Text;
         string name = textBox8.Text;
         db.Graphiccard.Add(header);
         db.SaveChanges();
         int id2 = db.Graphiccard.FirstOrDefault(r => r.Name == name).ID_GC;
         foreach (Model u in db.Model)
         {
             if (u.ID_GC == null)
             {
                 u.ID_GC = id2;
             }
         }
         db.SaveChanges();
         WriteALL();
     }
 }
示例#8
0
 private void button11_Click(object sender, EventArgs e)
 {
     using (KPgamenotebookContext db = new KPgamenotebookContext())
     {
         string a  = Convert.ToString(comboBox5.SelectedItem);
         int    id = db.Firm.FirstOrDefault(r => r.Name_firm == a).ID_firm;
         foreach (Model u in db.Model)
         {
             if (u.ID_firm == id)
             {
                 u.ID_firm = null;
             }
         }
         db.SaveChanges();
         foreach (Firm u in db.Firm)
         {
             if (u.ID_firm == id)
             {
                 db.Firm.Remove(u);
             }
         }
         db.SaveChanges();
         Firm header = new Firm();
         header.ID_firm   = id;
         header.Name_firm = textBox10.Text;
         string name = textBox10.Text;
         db.Firm.Add(header);
         db.SaveChanges();
         int id2 = db.Firm.FirstOrDefault(r => r.Name_firm == name).ID_firm;
         foreach (Model u in db.Model)
         {
             if (u.ID_firm == null)
             {
                 u.ID_firm = id2;
             }
         }
         db.SaveChanges();
         WriteALL();
     }
 }
示例#9
0
 private void listView2_SelectedIndexChanged(object sender, EventArgs e)
 {
     textBox1.Clear();
     try
     {
         var selected  = listView2.SelectedItems[0].Text;
         int selected1 = Convert.ToInt32(selected);
         using (KPgamenotebookContext db = new KPgamenotebookContext())
         {
             var obj = db.Reviews;
             foreach (Reviews u in obj)
             {
                 if (u.ID_review == selected1)
                 {
                     textBox1.Text = u.Review_text;
                 }
             }
         }
     }
     catch (Exception ex)
     { }
 }
示例#10
0
        public async void Parse(string url1, string rateing)
        {
            //Объект класса
            using (KPgamenotebookContext db = new KPgamenotebookContext())
            {
                Model       gameNotebook = new Model();
                Firm        firm         = new Firm();
                Graphiccard graphiccard  = new Graphiccard();
                CPU         cPU          = new CPU();

                //Подключение к HTML-страничке
                IConfiguration   config  = Configuration.Default.WithDefaultLoader();
                IBrowsingContext context = BrowsingContext.New(config);
                IDocument        doc1    = await context.OpenAsync(url1);

                int  watch = Convert.ToInt32(url1.Substring(url1.Length - 8));
                var  obj   = db.Model;
                bool twice = false;

                foreach (Model u in obj)
                {
                    if (watch == u.ID_model)
                    {
                        twice = true;
                    }
                }
                if (twice == false)
                {
                    //Характеристики
                    IEnumerable <IElement> shortDescriptionParams = doc1.All.Where(block =>
                                                                                   block.LocalName == "span" &&
                                                                                   block.ClassList.Contains("c-specification__value") &&
                                                                                   block.ParentElement.ParentElement.ParentElement.ParentElement.LocalName == "table" &&
                                                                                   block.ParentElement.ParentElement.ParentElement.ParentElement.ClassList.Contains("c-specification__table"));
                    //

                    //Вспомогательная переменная
                    string text;
                    //Имя
                    IElement name = doc1.QuerySelector("h1.fl-h1");
                    text = name.TextContent;
                    //IElement rating = rate.ToList()[0];

                    string textttt = text;
                    // Добавление фирмы
                    string[] words = text.Split(new char[] { ' ' });
                    var      obj2  = db.Firm;

                    bool third = false;
                    foreach (Firm t in obj2)
                    {
                        if (words[2] == t.Name_firm)
                        {
                            gameNotebook.ID_firm = t.ID_firm;
                            third = true;
                            break;
                        }
                    }
                    if (third == false)
                    {
                        firm.Name_firm = words[2];
                        db.Firm.Add(firm);
                        db.SaveChanges();
                        gameNotebook.ID_firm = firm.ID_firm;
                    }
                    ////CPU
                    IElement cpu = shortDescriptionParams.ToList()[1];
                    text = cpu.TextContent;
                    text = DeleteNT(text);
                    string[] words1  = text.Split(new char[] { ' ' });
                    string   namecpu = words1[0] + " " + words1[1] + " " + words1[2] + " " + words1[3];
                    string   freauq  = words1[4] + " " + words1[5];
                    var      obj4    = db.CPU;

                    bool fifth = false;
                    foreach (CPU t in obj4)
                    {
                        if (namecpu == t.Name)
                        {
                            gameNotebook.ID_CPU = t.ID_CPU;
                            fifth = true;
                        }
                    }
                    if (fifth == false)
                    {
                        //cPU.ID_CPU = count;
                        //count++;
                        cPU.Name      = namecpu;
                        cPU.Frequency = freauq;
                        db.CPU.Add(cPU);
                        db.SaveChanges();
                        gameNotebook.ID_CPU = cPU.ID_CPU;
                    }

                    var obj3 = db.Graphiccard;

                    bool     fourth       = false;
                    IElement graphiccard1 = shortDescriptionParams.ToList()[3];
                    text = graphiccard1.TextContent;
                    text = DeleteNT(text);
                    foreach (Graphiccard t in obj3)
                    {
                        if (text == t.Name)
                        {
                            gameNotebook.ID_GC = t.ID_GC;
                            fourth             = true;
                        }
                    }
                    if (fourth == false)
                    {
                        graphiccard.Name = text;

                        db.Graphiccard.Add(graphiccard);
                        db.SaveChanges();
                        gameNotebook.ID_GC = graphiccard.ID_GC;
                    }

                    gameNotebook.Href     = url1;
                    gameNotebook.ID_model = watch;
                    string text1 = textttt.Remove(0, 23);
                    gameNotebook.Name = DeleteNT(text1);
                    //Оценка
                    gameNotebook.Rating = rateing;
                    //Цена
                    IElement price = doc1.QuerySelector("div.fl-pdp-price__current");
                    string   text2 = price.TextContent;
                    gameNotebook.Price = text2.Replace("₽", "RUB");
                    //Бонусы*
                    IElement bonuses = doc1.QuerySelector("span.u-color-red.wrapper-text__rouble");
                    if (bonuses == null)
                    {
                        gameNotebook.Bonuses = null;
                    }
                    else
                    {
                        string text3 = bonuses.TextContent;
                        gameNotebook.Bonuses = text3;
                    }

                    ////Diagonal
                    //IElement diagonal = shortDescriptionParams.ToList()[0];
                    //text = diagonal.TextContent;
                    //gameNotebook. = DeleteNT(text);

                    //Ядра
                    //string url3 = url1 + "/specification";
                    //IDocument doc3 = await context.OpenAsync(url3);
                    //IEnumerable<IElement> elements = doc3.All.Where(block =>
                    //  block.LocalName == "div"
                    // && block.ClassList.Contains("product-details-specification-column")
                    //);

                    //RAM
                    IElement ram = shortDescriptionParams.ToList()[2];
                    text = DeleteNT(text);
                    text = ram.TextContent;
                    string NoGB = DeleteNT(text);
                    gameNotebook.RAM = StringTOint(NoGB);

                    //SSD
                    IElement ssd = shortDescriptionParams.ToList()[4];
                    text             = ssd.TextContent;
                    gameNotebook.SSD = DeleteNT(text);

                    //Отзывы
                    string    url2 = url1 + "/reviews";
                    IDocument doc2 = await context.OpenAsync(url2);

                    //IElement rate = doc2.QuerySelector("span.text-cutter-wrapper");
                    //Текст
                    IEnumerable <IElement> opinion = doc2.All.Where(block =>
                                                                    block.LocalName == "p" &&
                                                                    block.OuterHtml.Contains("<p itemprop=\"description\">") == true &&
                                                                    block.Children.All(u => u.LocalName == "span"));
                    //Оценка
                    IEnumerable <IElement> points = doc2.All.Where(block =>
                                                                   block.LocalName == "span" &&
                                                                   block.OuterHtml.Contains("<span itemprop=\"ratingValue\">") == true);

                    for (int i = 0; i < opinion.Count(); i++)
                    {
                        Reviews  reviews  = new Reviews();
                        bool     sixth    = false;
                        IElement element  = opinion.ToList()[i];
                        IElement element1 = points.ToList()[i];
                        var      obj5     = db.Reviews;
                        foreach (Reviews re in obj5)
                        {
                            if (element.TextContent == re.Review_text)
                            {
                                sixth = true;
                            }
                        }
                        if (sixth == false)
                        {
                            reviews.Review_text = element.TextContent;
                            reviews.Rating      = element1.TextContent;
                            reviews.ID_model    = watch;
                            db.Reviews.Add(reviews);
                        }

                        reviews.Review_text = element.TextContent;
                    }

                    db.Model.Add(gameNotebook);
                    db.SaveChanges();
                }
                else
                {
                    db.SaveChanges();
                }
            }
        }
示例#11
0
        private void button6_Click(object sender, EventArgs e)
        {
            string outputPath1        = @"C:\Users\ReaLBERG\Desktop\3 курс\АИС\Отчеты\Ценабонусы" + Path.GetRandomFileName() + ".xlsx";
            KPgamenotebookContext db2 = new KPgamenotebookContext();
            int num2   = db2.Model.Count();
            var models = db2.Model;

            Model[] gameNotebooks2 = new Model[num2];
            int     p = 1;

            Excel.Application excelApp = new Excel.Application();
            Excel.Workbook    workBook;
            Excel.Worksheet   workSheet;
            workBook  = excelApp.Workbooks.Add();
            workSheet = (Excel.Worksheet)workBook.Worksheets.get_Item(1);

            int[] vs  = new int[num2];
            int[] vs2 = new int[num2];
            int   k   = 0;

            foreach (var t in models)
            {
                int value;
                int value1;

                int.TryParse(string.Join("", t.Price.Where(c => char.IsDigit(c))), out value);
                int.TryParse(string.Join("", t.Bonuses.Where(c => char.IsDigit(c))), out value1);
                vs[k]  = value;
                vs2[k] = value1;
                k++;
            }
            int temp;

            for (int i = 0; i < vs.Length - 1; i++)
            {
                for (int j = i + 1; j < vs.Length; j++)
                {
                    if (vs[i] > vs[j])
                    {
                        temp   = vs[i];
                        vs[i]  = vs[j];
                        vs[j]  = temp;
                        temp   = vs2[i];
                        vs2[i] = vs2[j];
                        vs2[j] = temp;
                    }
                }
            }
            for (p = 1; p < 24; p++)
            {
                workSheet.Cells[1, p] = (vs[p - 1]);
                workSheet.Cells[2, p] = (vs2[p - 1]);
            }
            Excel.ChartObjects chartObjs = (Excel.ChartObjects)workSheet.ChartObjects();
            Excel.ChartObject  chartObj  = chartObjs.Add(10, 50, 500, 500);
            Excel.Chart        xlChart   = chartObj.Chart;
            xlChart.ChartType = Excel.XlChartType.xlAreaStacked;
            Excel.SeriesCollection seriesCollection = (Excel.SeriesCollection)xlChart.SeriesCollection(Type.Missing);
            Excel.Series           series           = seriesCollection.NewSeries();
            series.XValues          = workSheet.get_Range("A1", "Q1");
            series.Values           = workSheet.get_Range("A2", "Q2");
            xlChart.HasTitle        = true;
            xlChart.ChartTitle.Text = "Зависимость бонусов от цены";
            xlChart.HasLegend       = false;
            excelApp.Visible        = true;
            excelApp.UserControl    = true;
            workSheet.SaveAs(outputPath1);
            object misValue = System.Reflection.Missing.Value;

            xlChart.Export("C:\\Users\\ReaLBERG\\Desktop\\3 курс\\АИС\\Graf.bmp", "BMP", misValue);
            excelApp.Quit();


            Word cOMFormatter        = new Word(@"C:\Users\ReaLBERG\Desktop\3 курс\АИС\Отчеты\lb9tt.doc");
            KPgamenotebookContext db = new KPgamenotebookContext();

            Console.WriteLine("Пожалуйста, введите имя: ");
            string name = Console.ReadLine();

            cOMFormatter.Replace("{Имя}", name);
            int num = db.Model.Count();

            string[] start = new string[3] {
                "ID", "Название", "Цена"
            };
            var gamenotebook = db.Model;

            Model[] gameNotebooks = new Model[num];
            int     y             = 0;

            foreach (var t in gamenotebook)
            {
                gameNotebooks[y] = t;

                y++;
            }
            cOMFormatter.TableCreate(num + 1, 3, start, gameNotebooks);

            cOMFormatter.Close();
        }
示例#12
0
        private void Redact()
        {
            using (KPgamenotebookContext db = new KPgamenotebookContext())
            {
                try
                {
                    string[] vs = new string[10];

                    vs[0] = textBox2.Text;
                    int ID = Convert.ToInt32(vs[0]);
                    vs[1] = textBox3.Text;
                    vs[2] = textBox4.Text;
                    vs[3] = textBox5.Text;
                    vs[4] = textBox6.Text;
                    vs[5] = textBox7.Text;
                    string stsix = Convert.ToString(comboBox1.SelectedItem);
                    int    six   = db.CPU.FirstOrDefault(r => r.Name == stsix).ID_CPU;
                    string stsev = Convert.ToString(comboBox6.SelectedItem);
                    int    seven = db.Graphiccard.FirstOrDefault(r => r.Name == stsev).ID_GC;
                    string steig = Convert.ToString(comboBox7.SelectedItem);
                    int    eight = db.Firm.FirstOrDefault(r => r.Name_firm == steig).ID_firm;
                    vs[9] = db.Model.FirstOrDefault(r => r.ID_model == ID).Href;
                    foreach (Reviews u in db.Reviews)
                    {
                        if (u.ID_model == ID)
                        {
                            u.ID_model = null;
                        }
                    }
                    db.SaveChanges();
                    var obj2 = db.Model;
                    foreach (Model u in obj2)
                    {
                        if (u.ID_model == Convert.ToInt32(textBox2.Text))
                        {
                            db.Model.Remove(u);
                        }
                    }
                    db.SaveChanges();
                    Model model = new Model();
                    model.ID_model = ID;
                    model.Href     = vs[9];
                    model.Name     = vs[1];
                    model.Price    = vs[2];
                    model.Rating   = vs[3];
                    model.SSD      = vs[4];


                    model.RAM = Convert.ToInt32(vs[5]);


                    model.ID_CPU  = six;
                    model.ID_GC   = seven;
                    model.ID_firm = eight;
                    db.Model.Add(model);
                    db.SaveChanges();
                    foreach (Reviews u in db.Reviews)
                    {
                        if (u.ID_model == null)
                        {
                            u.ID_model = ID;
                        }
                    }
                    db.SaveChanges();
                    WriteALL();
                }
                catch
                {
                    MessageBox.Show("Пожалуйста, перепроверьте данные");


                    textBox3.Clear();
                    textBox4.Clear();
                    textBox5.Clear();
                    textBox6.Clear();
                    textBox7.Clear();
                }



                //Model model = db.Model.FirstOrDefault(r => r.ID_model ==ou);
                //model.Name = textBox3.Text;
                //model.Price = textBox4.Text;
                //model.Rating = textBox5.Text;
                //model.SSD = textBox6.Text;
                //model.RAM = Convert.ToInt32(textBox7.Text);
                db.SaveChanges();
            }
        }
示例#13
0
        private void listView1_SelectedIndexChanged(object sender, EventArgs e)
        {
            listView2.Clear();
            try
            {
                listView2.Columns.Add("ID");
                listView2.Columns.Add("Рейтинг");
                var selected  = listView1.SelectedItems[0].Text;
                int selected1 = Convert.ToInt32(selected);
                using (KPgamenotebookContext db = new KPgamenotebookContext())
                {
                    var obj = db.Reviews;

                    foreach (Reviews u in obj)
                    {
                        if (u.ID_model == selected1)
                        {
                            var item2 = new ListViewItem(new[] { Convert.ToString(u.ID_review), u.Rating });
                            listView2.Items.Add(item2);
                        }
                    }
                    var obj2 = db.Model;
                    foreach (Model t in obj2)
                    {
                        if (t.ID_model == selected1)
                        {
                            textBox2.Text          = Convert.ToString(t.ID_model);
                            textBox3.Text          = t.Name;
                            textBox4.Text          = t.Price;
                            textBox5.Text          = t.Rating;
                            textBox6.Text          = t.SSD;
                            textBox7.Text          = Convert.ToString(t.RAM);
                            comboBox1.SelectedItem = db.CPU.FirstOrDefault(q => q.ID_CPU == t.ID_CPU).Name;

                            comboBox6.SelectedItem = db.Graphiccard.FirstOrDefault(q => q.ID_GC == t.ID_GC).Name;
                            comboBox7.SelectedItem = db.Firm.FirstOrDefault(q => q.ID_firm == t.ID_firm).Name_firm;
                            textBox13.Text         = Convert.ToString(t.ID_model);
                            textBox12.Text         = t.Name;
                        }
                    }
                    int kolvo = 0;
                    foreach (Reviews t in db.Reviews)
                    {
                        if (Convert.ToInt32(textBox13.Text) == t.ID_model)
                        {
                            kolvo++;
                        }
                    }
                    textBox14.Text = Convert.ToString(kolvo);
                    if (Convert.ToInt32(textBox14.Text) == 0)
                    {
                        button8.Visible = false;
                        label34.Visible = true;
                    }
                    if (Convert.ToInt32(textBox14.Text) != 0)
                    {
                        button8.Visible = true;
                        label34.Visible = false;
                    }
                }
            }
            catch (Exception ex)
            { }
        }