如何在Listbox c＃中循环遍历每个Array位置和视图？

Question

对于我所掌握的结构造成的任何不便表示歉心。

我有一个存储字符串数据的数组，然后显示在列表框中 我也有数组保存成本然后乘以数字上下值 该按钮当前显示基于复选框的结果，该复选框是字符串数据 然后将成本乘以列表框中显示的数字上下值。

我希望能够选择一个表编号，并且当前显示的表编号来自字符串数组中的数据，该数据包含食品类型和成本。 当用户循环显示表号时，数据在列表视图中更新

所以可以查看表1 - 25的订单。

这是类

的代码

public class MyMenu
{
    public string[] pizza = { "Cheese and Ham", "Ham and Pineapple", "Vegetarian", "MeatFeast", "Seafood" };
    public decimal[] price = { 3.50M, 4.20M, 5.20M, 5.80M, 5.60M };


    public string GetMenuItem(int select)
    {
        string choice = pizza[select];
        return choice;
    }

    public decimal GetMenuCost(int select)
    {
        decimal cost = price[select];
        return cost;
    }
}

---

这是表单代码

public partial class Form1 : Form
{
    MyMenu MenuMaker = new MyMenu();

    public Form1()
    {
        InitializeComponent();

    }

    string choice;
    decimal cost;
    decimal totalCost;


    private void button1_Click(object sender, EventArgs e)
    {
        listBox1.Items.Clear();
        totalCost = 0;
        choice = "";

        if (numericUpDown1.Value > 0)
        {
            if (checkBox1.Checked)
            {
                cost = MenuMaker.GetMenuCost(0);
                choice = MenuMaker.GetMenuItem(0);
                totalCost += cost * numericUpDown1.Value;
                listBox1.Items.Add(choice + " Qty x " + numericUpDown1.Value + "\n" + " Cost = " + cost * numericUpDown1.Value);
            }

        }
        else
        {
            if (checkBox1.Checked)
            {
                MessageBox.Show("Please enter Quantity for Cheese and tomato");
            }
        }

        //NumericUpDown2 is Ham and Pinapple
        if (numericUpDown2.Value > 0)
        {

            if (checkBox2.Checked)
            {
                cost = MenuMaker.GetMenuCost(1);
                choice = MenuMaker.GetMenuItem(1);
                totalCost += cost * numericUpDown2.Value;
                listBox1.Items.Add(choice + "Qty x " + numericUpDown2.Value + "\n" + " Cost = " + cost * numericUpDown2.Value);

            }
        }
        else
        {
            if (checkBox2.Checked)
            {
                MessageBox.Show("Please Enter Quantity for Ham and Pineaplle");
            }
        }

        if (numericUpDown3.Value > 0)
        {
            if (chckBxVegetarian.Checked)
            {
                cost = MenuMaker.GetMenuCost(2);
                choice = MenuMaker.GetMenuItem(2);
                totalCost += cost * numericUpDown3.Value;
                listBox1.Items.Add(choice + " Qty x " + numericUpDown3.Value + " Cost = " + cost * numericUpDown3.Value);
            }
        }
        else
        {
            if (chckBxVegetarian.Checked)
            {
                MessageBox.Show("Please enter Quantity for Vegetarian");
            }
        }


        if (numericUpDown4.Value > 0)
        {

            if (chkBxMeatFeast.Checked)
            {
                cost = MenuMaker.GetMenuCost(3);
                choice = MenuMaker.GetMenuItem(3);
                totalCost += cost * numericUpDown4.Value;
                listBox1.Items.Add(choice + "Qty x " + numericUpDown4.Value + "Cost = " + cost * numericUpDown4.Value);
            }
        }
        else
        {
            if (chkBxMeatFeast.Checked)
            {
                MessageBox.Show("Please enter Quantity for MeatFeast");
            }
        }

        if (numericUpDown5.Value > 0)
        {
            if (chkBxSeafood.Checked)
            {
                cost = MenuMaker.GetMenuCost(4);
                choice = MenuMaker.GetMenuItem(4);
                totalCost += cost * numericUpDown5.Value;
                listBox1.Items.Add(choice + "Qty x " + numericUpDown5.Value + "Cost = " + cost * numericUpDown5.Value);
            }
        }
        else
        {
            if (chkBxSeafood.Checked)
            {
                MessageBox.Show("Please enter Quantity for Seafood");
            }
        }
        if (totalCost > 0)
        {
           listBox1.Items.Add("The total Cost is " + totalCost);
        }

}