关于列表：使用上下文菜单项填充C#listview

Populating C# listview with context menu item

我想知道如何正确地使用"右键单击"上下文菜单中的选定预设项目中的信息来填充表单中的标签？我当前正在使用每个类\\'product \\'的\\'name \\'填充上下文菜单。然后，我想填写与用户右键菜单选择的项目相对应的标签。上下文菜单项将随着项目添加到列表而动态变化。

enter

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace rcMenu
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();

Product newProductA = new Product();
newProductA.Name ="Ice Cream";
newProductA.Category ="Dessert";
newProductA.Price ="Free";
productList.Add(newProductA);

Product newProductB = new Product();
newProductB.Name ="Cherries";
newProductB.Category ="Produce";
newProductB.Price ="$10.00";
productList.Add(newProductB);

Product newProductC = new Product();
newProductC.Name ="Soda";
newProductC.Category ="Beverage";
newProductC.Price ="$1.99";
productList.Add(newProductC);
}

public static List<Product> productList = new List<Product>();

public class Product
{
public String Name { get; set; }
public String Category { get; set; }
public String Price { get; set; }
}

private void SelectedPreset(object sender, EventArgs e)
{
label1.Text ="Product Name:" +"SELECTED";
label2.Text ="Product Category:" +"SELECTED";
label3.Text ="Product Price:" +"SELECTED";
}

private void contextMenuStrip1_Opened(object sender, EventArgs e)
{
(contextMenuStrip1.Items[0] as ToolStripMenuItem).DropDownItems.Clear();

foreach (var p in productList)
{
var itemName = p.Name;
(contextMenuStrip1.Items[0] as ToolStripMenuItem).DropDownItems.Add(itemName, null, SelectedPreset);
}
}
}
}

首先订阅Opening事件，然后放置如下代码：

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private void contextMenuStrip1_Opening(object sender, CancelEventArgs e)
{
if(contextMenuStrip1.Items.Count > 0)
contextMenuStrip1.Items.Clear();

foreach (var p in productList)
{
var itemName = p.Name;
contextMenuStrip1.Items.Add(itemName);
}
e.Cancel = false;
}

下一步，订阅ItemClicked事件，并放置如下代码：

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private void contextMenuStrip1_ItemClicked(object sender, ToolStripItemClickedEventArgs e)
{
Product p = productList.Find(i => i.Name == e.ClickedItem.Text);
//just in case its null...
if(p != null)
{
label1.Text ="Product Name:" + p.Name;
label2.Text ="Product Category:" + p.Category;
label3.Text ="Product Price:" + p.Price;
}
}