open a new form with different user

I want to access a same form but with two types of users : user and admin

here is my code :

public void Menu_Load(object sender, EventArgs e)

{

cnx.Open();

SqlCommand cmd1 = new SqlCommand("select * from utilisateur where privilege='User' ", cnx);

int a1 = cmd1.ExecuteNonQuery();

cnx.Close();

if (a1!=0)

{

gestionToolStripMenuItem1.Visible = false;

toolStripLabel1.Text = "user";

}

cnx.Open();

SqlCommand cmd = new SqlCommand("select * from utilisateur where privilege='Admin' ", cnx);

int a = cmd.ExecuteNonQuery();

cnx.Close();

if (a != 0)

{

gestionToolStripMenuItem1.Visible = true;

toolStripLabel1.Text = "admin";

}