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 System.Data.SqlClient; namespace NN_TelekomPP.Forms { public partial class InernetUPD : Form { public int razmer = 0; public static string[] upd_internet = new string[1]; string id_internet; DataBase dataBase = new DataBase(); public InernetUPD(string id_internet, string name, string cost) { InitializeComponent(); dataBase.openConnection(); this.id_internet = id_internet; textBox1.Text = name; textBox2.Text = cost; dataBase.closeConnection(); } private void button_back_Click(object sender, EventArgs e) { this.Hide(); InternetForm IF = new InternetForm(); IF.ShowDialog(); } private void Save_button_Click(object sender, EventArgs e) { if (textBox1.Text.Replace(" ", "") == "") MessageBox.Show("Поле интернет не может быть пустым"); if (textBox2.Text.Replace(" ", "") == "") MessageBox.Show("Поле стоимость не может быть пустым"); else { dataBase.openConnection(); var addQuery = $"update Internet set Name = '{textBox1.Text}', Cost = '{textBox2.Text}' where Internet_code = '{id_internet}'"; var command = new SqlCommand(addQuery, dataBase.GetConnection()); command.ExecuteNonQuery(); MessageBox.Show("Запись успешно изменена"); upd_internet[razmer] = textBox1.Text; Array.Resize(ref upd_internet, upd_internet.Length + 1); razmer++; dataBase.closeConnection(); this.Hide(); InternetForm IF = new InternetForm(); IF.ShowDialog(); } } private void textBox2_KeyPress(object sender, KeyPressEventArgs e) { char number = e.KeyChar; if ((e.KeyChar <= 47 || e.KeyChar >= 58) && number != 8 && number != 46) //цифры, клавиша BackSpace и запятая а ASCII { e.Handled = true; } } private void global_FormClosed(object sender, FormClosedEventArgs e) { Application.Exit(); } } }