private void PictureBox1_Click(object sender, EventArgs e) { this.Hide(); Accueil fm = new Accueil(); fm.Show(); }
private void Button1_Click(object sender, EventArgs e) { if (textBox1.Text == "" || textBox4.Text == "") { MessageBox.Show("Veuillez remplir tous les champs"); } else { conn.Open(); String strl = "Select * from utilisateurs where Email='" + textBox1.Text + "' and Mot_de_passe='" + textBox4.Text + "' "; MySqlCommand cmd = new MySqlCommand(strl, conn); DataTable dt = new DataTable(); MySqlDataAdapter da = new MySqlDataAdapter(strl, conn); da.Fill(dt); if (dt.Rows.Count > 0) { textBox1.Hide(); textBox4.Hide(); MySqlDataReader dr; dr = cmd.ExecuteReader(); if (dr.Read()) { this.Hide(); Accueil fm = new Accueil(); fm.Show(); } } else { MessageBox.Show("Il y a erreur sur l'e-mail ou sur le mot de pass saisie"); } conn.Close(); } }