如何克隆一个listviewitem并加入另外一个listview中

Question

listviewitem1 = listview1.selected[0];
listview2.items.add(listviewitem1);

Answer 1

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;namespace WindowsApplication1
{
/// <summary>
/// Form1 的摘要说明。
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.ListView listView1;
private System.Windows.Forms.ListView listView2;
private System.Windows.Forms.Button button1;
private System.Windows.Forms.ColumnHeader columnHeader1;
private System.Windows.Forms.ColumnHeader columnHeader2;
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.Container components = null; public Form1()
{
//
// Windows 窗体设计器支持所必需的
//
InitializeComponent(); //
// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
//
} /// <summary>
/// 清理所有正在使用的资源。
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null) 
{
components.Dispose();
}
}
base.Dispose( disposing );
} #region Windows Form Designer generated code
/// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
{
System.Windows.Forms.ListViewItem listViewItem1 = new System.Windows.Forms.ListViewItem(new string[] {
 "1"}, -1, System.Drawing.SystemColors.WindowText, System.Drawing.SystemColors.Window, new System.Drawing.Font("宋体", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134))));
System.Windows.Forms.ListViewItem listViewItem2 = new System.Windows.Forms.ListViewItem(new string[] {
 "2"}, -1, System.Drawing.SystemColors.WindowText, System.Drawing.SystemColors.Window, new System.Drawing.Font("宋体", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134))));
System.Windows.Forms.ListViewItem listViewItem3 = new System.Windows.Forms.ListViewItem(new string[] {
 "3"}, -1, System.Drawing.SystemColors.WindowText, System.Drawing.SystemColors.Window, new System.Drawing.Font("宋体", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134))));
System.Windows.Forms.ListViewItem listViewItem4 = new System.Windows.Forms.ListViewItem(new string[] {
 "4"}, -1, System.Drawing.SystemColors.WindowText, System.Drawing.SystemColors.Window, new System.Drawing.Font("宋体", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134))));
System.Windows.Forms.ListViewItem listViewItem5 = new System.Windows.Forms.ListViewItem(new string[] {
 "5"}, -1, System.Drawing.SystemColors.WindowText, System.Drawing.SystemColors.Window, new System.Drawing.Font("宋体", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134))));
System.Windows.Forms.ListViewItem listViewItem6 = new System.Windows.Forms.ListViewItem(new string[] {
 "6"}, -1, System.Drawing.SystemColors.WindowText, System.Drawing.SystemColors.Window, new System.Drawing.Font("宋体", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134))));
System.Windows.Forms.ListViewItem listViewItem7 = new System.Windows.Forms.ListViewItem(new string[] {
 "7"}, -1, System.Drawing.SystemColors.WindowText, System.Drawing.SystemColors.Window, new System.Drawing.Font("宋体", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134))));
System.Windows.Forms.ListViewItem listViewItem8 = new System.Windows.Forms.ListViewItem(new string[] {
 "8"}, -1, System.Drawing.SystemColors.WindowText, System.Drawing.SystemColors.Window, new System.Drawing.Font("宋体", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134))));
System.Windows.Forms.ListViewItem listViewItem9 = new System.Windows.Forms.ListViewItem(new string[] {
 "9"}, -1, System.Drawing.SystemColors.WindowText, System.Drawing.SystemColors.Window, new System.Drawing.Font("宋体", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134))));
System.Windows.Forms.ListViewItem listViewItem10 = new System.Windows.Forms.ListViewItem(new string[] {
  "10"}, -1, System.Drawing.SystemColors.WindowText, System.Drawing.SystemColors.Window, new System.Drawing.Font("宋体", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134))));
this.listView1 = new System.Windows.Forms.ListView();
this.listView2 = new System.Windows.Forms.ListView();
this.button1 = new System.Windows.Forms.Button();
this.columnHeader1 = new System.Windows.Forms.ColumnHeader();
this.columnHeader2 = new System.Windows.Forms.ColumnHeader();
this.SuspendLayout();
// 
// listView1
// 
this.listView1.Columns.AddRange(new System.Windows.Forms.ColumnHeader[] {
this.columnHeader1});
this.listView1.Dock = System.Windows.Forms.DockStyle.Left;
this.listView1.Items.AddRange(new System.Windows.Forms.ListViewItem[] {
  listViewItem1,
  listViewItem2,
  listViewItem3,
  listViewItem4,
  listViewItem5,
  listViewItem6,
  listViewItem7,
  listViewItem8,
  listViewItem9,
  listViewItem10});
this.listView1.Name = "listView1";
this.listView1.Size = new System.Drawing.Size(121, 357);
this.listView1.TabIndex = 0;
this.listView1.View = System.Windows.Forms.View.Details;
// 
// listView2
// 
this.listView2.Columns.AddRange(new System.Windows.Forms.ColumnHeader[] {
this.columnHeader2});
this.listView2.Dock = System.Windows.Forms.DockStyle.Right;
this.listView2.Location = new System.Drawing.Point(343, 0);
this.listView2.Name = "listView2";
this.listView2.Size = new System.Drawing.Size(121, 357);
this.listView2.TabIndex = 1;
this.listView2.View = System.Windows.Forms.View.Details;
// 
// button1
// 
this.button1.Location = new System.Drawing.Point(176, 168);
this.button1.Name = "button1";
this.button1.TabIndex = 2;
this.button1.Text = "移动>>";
this.button1.Click += new System.EventHandler(this.button1_Click);
// 
// Form1
// 
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(464, 357);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
  this.button1,
  this.listView2,
  this.listView1});
this.Name = "Form1";
this.Text = "Form1";
this.ResumeLayout(false); }
#endregion /// <summary>
/// 应用程序的主入口点。
/// </summary>
[STAThread]
static void Main() 
{
Application.Run(new Form1());
} private void button1_Click(object sender, System.EventArgs e)
{
for(int i=0; i<this.listView1.Items.Count; i++)
{
this.listView2.Items.Add(this.listView1.Items[i].Text);
}
}
}
}

Answer 2

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;namespace WindowsApplication3
{
/// <summary>
/// Form1 的摘要说明。
/// </summary>
public class Form1 : Form
{
private Button button1;
private ListView listView2;
private ListView listView1;
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.Container components = null; public Form1()
{
InitializeComponent();
} /// <summary>
/// 清理所有正在使用的资源。
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null) 
{
components.Dispose();
}
}
base.Dispose( disposing );
} #region Windows Form Designer generated code
/// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
{
ListViewItem listViewItem1 = new ListViewItem(new ListViewItem.ListViewSubItem[] {
new ListViewItem.ListViewSubItem(null, "Item1", System.Drawing.SystemColors.WindowText, System.Drawing.SystemColors.Window, new System.Drawing.Font("宋体", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134))))}, -1);
ListViewItem listViewItem2 = new ListViewItem(new ListViewItem.ListViewSubItem[] {
new ListViewItem.ListViewSubItem(null, "Item2", System.Drawing.SystemColors.WindowText, System.Drawing.SystemColors.Window, new System.Drawing.Font("宋体", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134))))}, -1);
ListViewItem listViewItem3 = new ListViewItem(new ListViewItem.ListViewSubItem[] {
new ListViewItem.ListViewSubItem(null, "Item3", System.Drawing.SystemColors.WindowText, System.Drawing.SystemColors.Window, new System.Drawing.Font("宋体", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134))))}, -1);
this.button1 = new Button();
this.listView2 = new ListView();
this.listView1 = new ListView();
this.SuspendLayout();
// 
// button1
// 
this.button1.Location = new System.Drawing.Point(131, 215);
this.button1.Name = "button1";
this.button1.TabIndex = 2;
this.button1.Text = "Clone";
this.button1.Click += new System.EventHandler(this.button1_Click);
// 
// listView2
// 
this.listView2.Location = new System.Drawing.Point(0, 105);
this.listView2.Name = "listView2";
this.listView2.Size = new System.Drawing.Size(335, 100);
this.listView2.TabIndex = 1;
this.listView2.View = View.List;
// 
// listView1
// 
this.listView1.Items.AddRange(new ListViewItem[] { listViewItem1,
listViewItem2,
listViewItem3});
this.listView1.Name = "listView1";
this.listView1.Size = new System.Drawing.Size(335, 100);
this.listView1.TabIndex = 0;
this.listView1.View = View.List;
// 
// Form1
// 
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(337, 248);
this.Controls.AddRange(new Control[] { this.button1,
this.listView2,
this.listView1});
this.Name = "Form1";
this.Text = "Form1";
this.ResumeLayout(false); }
#endregion /// <summary>
/// 应用程序的主入口点。
/// </summary>
[STAThread]
static void Main() 
{
Application.Run(new Form1());
} private void button1_Click(object sender, System.EventArgs e)
{
ListViewItem lstItem;
foreach(ListViewItem item in listView1.Items)
{
lstItem = (ListViewItem)item.Clone();
listView2.Items.Add(lstItem);
}
}
}
}