private void bunifuThinButton21_Click(object sender, EventArgs e) { if (UnameTb.Text == "" || PassTb.Text == "") { MessageBox.Show("Enter The Username and Password"); } else { if (RolerCb.SelectedIndex > -1) { if (RolerCb.SelectedItem.ToString() == "ADMIN") { if (UnameTb.Text == "Admin" && PassTb.Text == "Admin") { ProductForm prod = new ProductForm(); prod.Show(); this.Hide(); } else { MessageBox.Show("If You are the Admin, Enter the Correct Username and Password"); } } else { //MessageBox.Show("You are in the Seller Section"); Con.Open(); SqlDataAdapter sda = new SqlDataAdapter("Select count(8) from SellerTbl where SellerName='" + UnameTb.Text + "' and SellerPass='******'", Con); DataTable dt = new DataTable(); sda.Fill(dt); if (dt.Rows[0][0].ToString() == "1") { SellerName = UnameTb.Text; SellingForm sell = new SellingForm(); sell.Show(); this.Hide(); Con.Close(); } else { MessageBox.Show("Invalid Username and/or Password"); } } } else { MessageBox.Show("Select a Role"); } } }