private void buttonShowStudents_Click(object sender, EventArgs e)
{
dataGridViewStudents.DataSource = null;
dataGridViewStudents.DataSource = _userQuery.UserWithAddressByName(textBoxStudentName.Text.ToString())
.Select(x => new
{
Imię = x.Name,
Nazwisko = x.Surname,
Miasto = x.Address.City,
KodPocztowy = x.Address.PostCode
})
.ToList();
}