/// <summary> /// Handles the Click event of the button1 control. /// </summary> /// <param name="sender">The source of the event.</param> /// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param> private void button1_Click(object sender, EventArgs e) { try { OleDbCommand command = new OleDbCommand("SELECT EmpNumber,Login,Passwordd FROM Employees WHERE Login = '******'", connection); //WHERE Login = "******"Невірний логін або пароль"); } connection.Close(); }