goreva_4996/Form2.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 Npgsql;

namespace pract
{
    public partial class Form2 : Form
    {
        public Form2()
        {
            InitializeComponent();
        }

        private void button2_Click(object sender, EventArgs e)
        {
            string dbUser = textBox1.Text;
            string password = textBox2.Text;

            var connString = "Host=80.250.189.52;Database=dbwork;Username=goreva_am;Password=qm#J6pyA%K#;";

            try
            {
                using (var conn = new NpgsqlConnection(connString))
                {
                    conn.Open();
                }
                var isAdmin = ("goreva_am" == textBox1.Text);
                Form1 form1 = new Form1(connString, isAdmin);
                form1.ShowDialog();
            }
            catch (Exception ex)
            {
                MessageBox.Show("Ошибка подключения к БД: " + ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }
    }
}