C# ListBox中的Item拖拽代码分享

我们先来看下运行效果图

Form1.cs代码：

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;
using System.Collections;

namespace MoveItem
{
public partial class Form1 : Form
{
  public Form1()
  {
    InitializeComponent();
  }
  ArrayList list = new ArrayList();
  private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
  {

  }

  private void Form1_Load(object sender, EventArgs e)
  {
    for (int i = 1; i <= 10; i++)
    {
      list.Add(i);
      string s = i.ToString();
      listBox1.Items.Add(s);
    }

  }

  private void listBox2_SelectedIndexChanged(object sender, EventArgs e)
  {
    
  }

  private void button1_Click(object sender, EventArgs e)
  {
    //单选，无法实现多选
    //string str = this.listBox1.Text.Trim().ToString();
    //if (listBox1.Items.Contains(str))
    //{
    //  listBox1.Items.Remove(str);
    //  listBox2.Items.Add(str);
    //}
    for (int i=0;i<listBox1.SelectedIndices.Count;i++)
    {
      listBox2.Items.Add(listBox1.Items[listBox1.SelectedIndices[i]]);
      listBox1.Items.RemoveAt(listBox1.SelectedIndices[i]);
      i--;
    }
  }

  private void button2_Click(object sender, EventArgs e)
  {
    for (int i = 0; i < listBox2.SelectedIndices.Count; i++)
    {
      listBox1.Items.Add(listBox2.Items[listBox2.SelectedIndices[i]]);
      listBox2.Items.RemoveAt(listBox2.SelectedIndices[i]);
      i--;
    }
  }

  private void button3_Click(object sender, EventArgs e)
  {
    listBox2.Items.AddRange(listBox1.Items);
    listBox1.Items.Clear();
  }

  private void button4_Click(object sender, EventArgs e)
  {
    listBox1.Items.AddRange(listBox2.Items);
    listBox2.Items.Clear();
  }
}
}

大家可以测试运行下，有其他问题可以在下方的留言区讨论，感谢大家对编程宝库的支持。

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