mihailov/Form1.cs

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 static System.Windows.Forms.VisualStyles.VisualStyleElement;

namespace auto_repair_shop
{
    public partial class Form1 : Form
    {
   
            public DataTable data = new DataTable();

            public Form1()
            {
                InitializeComponent();
                DataTable dataTable = Dbs.select("SELECT idbid, client, service, price, deadlines FROM bid  ");
                data = dataTable;
                dataGridView1.DataSource = data;
            }


            private void button1_Click(object sender, EventArgs e)
        {
            
                {
                    if (textBox1.Text == "" || textBox2.Text == "" || textBox3.Text == "" || textBox4.Text == "")
                    {
                        MessageBox.Show("Заполните все поля!");
                    }
                    else
                    {
                        data = Dbs.select($"INSERT INTO bid (`client`,`service`,`price`, `deadlines` ) VALUES ('{textBox1.Text}','{textBox2.Text}','{textBox3.Text}','{textBox4.Text}');");
                        data = Dbs.select(@"SELECT idBid,client,service,price, deadlines FROM bid  ");
                        textBox1.Clear();
                        textBox2.Clear();
                        textBox3.Clear();
                        textBox4.Clear();

                        dataGridView1.DataSource = data;
                    }
                }

            
        }

        private void button2_Click(object sender, EventArgs e)
        {
            DialogResult result = MessageBox.Show("удалить безвазвратно?", "Подтвердите действие", MessageBoxButtons.YesNo, MessageBoxIcon.Question);

            if (result == DialogResult.Yes)
            {
                data = Dbs.select($"DELETE FROM bid WHERE idBid = " + dataGridView1.Rows[dataGridView1.CurrentCell.RowIndex].Cells[0].Value.ToString());
                data = Dbs.select($"SELECT idBid, client, service,price, deadlines FROM bid  ");
                MessageBox.Show("Удаление завершено!", "TsManager"); 
            }
            else if (result == DialogResult.No)
            {
                dataGridView1.DataSource = data;
            }
          
            dataGridView1.DataSource = data;
        }

          

            private void button3_Click_1(object sender, EventArgs e)
        {

            int selectedRowIndex = dataGridView1.CurrentCell.RowIndex;

            if (selectedRowIndex < 0)
            {
                MessageBox.Show("Пожалуйста, выберите строку для редактирования.");
                return;
            }


            int id = Convert.ToInt32(dataGridView1.Rows[selectedRowIndex].Cells[0].Value);


            if (string.IsNullOrWhiteSpace(textBox1.Text) || string.IsNullOrWhiteSpace(textBox2.Text) || string.IsNullOrWhiteSpace(textBox3.Text) || string.IsNullOrWhiteSpace(textBox4.Text))
            {
                MessageBox.Show("Заполните все поля!");
                return;
            }
            DialogResult result = MessageBox.Show("уверены что хотите редактировать?", "Подтвердите действие", MessageBoxButtons.YesNo, MessageBoxIcon.Question);

            if (result == DialogResult.Yes)
            {
                string updateQuery = $"UPDATE bid SET client = '{textBox1.Text}', service = '{textBox2.Text}',  price= '{textBox3.Text}',  deadlines= '{textBox4.Text}' WHERE idBid = {id};";
                Dbs.select(updateQuery);


                data = Dbs.select("SELECT idBid, client, service, price, deadlines FROM bid  ");
                dataGridView1.DataSource = data;


                textBox1.Clear();
                textBox2.Clear();
                textBox3.Clear();
                textBox4.Clear();
                MessageBox.Show("редактирование завершено!", "TsManager");
            }
            else if (result == DialogResult.No)
            {
                dataGridView1.DataSource = data;
            }

         

        }
    }

}