private void btnAddProduct_Click(object sender, EventArgs e)
 {
     DatabaseUtilities.DBConnection db = new DatabaseUtilities.DBConnection();
     if (tbxProductName.Text != "" || tbxPrice.Text != "")
     {
         Product p = new Product(tbxProductName.Text, Double.Parse(tbxPrice.Text), tbxDescription.Text);
         if (db.AddProductToDataBase(p))
         {
             MessageBox.Show("Product added successfully.");
             parent.updateProductLists();
             this.Close();
         }
         else
         {
             MessageBox.Show("Addition failed.");
         }
     }
     else
     {
         MessageBox.Show("Cannot add, be sure name and price are filled.");
     }
 }
 private void UserListGUI_Load(object sender, EventArgs e)
 {
     DatabaseUtilities.DBConnection db = new DatabaseUtilities.DBConnection();
     lbxUsers.DataSource = db.SelectSpecificFromTable("email", "customer");
 }