public static void getAllTables()
{
FormBooking.getTableBooking();
FormBooks.getTableBook();
FormDepartment.getTableDepartment();
FormIssuingBooks.getTableIssuingBooks();
FormReaders.getTableReaders();
}
private void buttonBooking_Click(object sender, EventArgs e)
{
var form = new FormBooking();
form.ShowDialog();
}