Question

在C#中ArrayList与传统数组间的转换

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

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

private void Form1_Load(object sender, EventArgs e)
{
string[] departs = new string[4];
departs[0] = "depart 1";
departs[1] = "depart 2";
departs[2] = "depart 3";
departs[3] = "depart 4";
ArrayList departsList = ArrayListSample.Adapter(departs);
listBox1.DataSource = departsList;
}

private void button1_Click(object sender, EventArgs e)
{
ArrayList tmpList = ArrayListSample.Adapter(listBox1.Items);
Array newDeparts = tmpList.ToArray();
listBox2.DataSource = newDeparts;
}
}
}

命名空间“ArrayListSample”中不存在类型或命名空间名称“Adapter”(是缺少程序集引用吗?) E:\C#实\ArrayListSample\ArrayListSample\Form1.cs

这个错误怎么处理？？？

Answer 1

看了一下代码，ArrayListSample.Adapter(departs);应该Adapter类的构造函数，在ArrayListSample命名空间中还少了Adapter类的定义，你写的是书上的例子吧，仔细看看你的项目是不是少了Adapter定义，如果不是在当前项目定义，那就是少引用，可能引用其他程序集的Adapter的定义。

Answer 2

Adapter应该是自己写的方法吧，添加using ArrayListSample;