private async void button1_Click(object sender, EventArgs e) { command = new SqlCommand("SELECT * FROM Employee", conn); try { reader = command.ExecuteReader(); while (await reader.ReadAsync()) { if ((textBox1.Text == Convert.ToString(reader["Login"]) && textBox2.Text == Convert.ToString(reader["Password"]))) { Information1 information = new Information1(); information.ShowDialog(this); this.Hide(); } else { label4.Visible = true; } } } catch (Exception ex) { MessageBox.Show(ex.Message.ToString(), ex.Source.ToString(), MessageBoxButtons.OK, MessageBoxIcon.Error); } finally { if (reader != null) { reader.Close(); } } }
public Update1(Information1 form, int number) { InitializeComponent(); conn = new SqlConnection(connectStr); conn.Open(); reader = null; Form = form; if (number == 2) { Сотрудники.SelectedTab = tabPage2; } if (number == 3) { Сотрудники.SelectedTab = tabPage3; } }