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 ListviewDemo
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
listView1.Columns.Add("", 50, HorizontalAlignment.Left);
listView1.Columns.Add("", 50, HorizontalAlignment.Left);
listView1.Columns.Add("", 50, HorizontalAlignment.Left);
//listView1.Items.Add(new ListViewItem(new string[] { "张三", "13岁", "五班" }));
//listView1.Items.Add(new ListViewItem(new string[] { "李四", "14岁", "六班" }));
//listView1.Items.Add(new ListViewItem(new string[] { "王五", "15岁", "七班" }));
listView1.Items.Add(new ListViewItem(new string[] { "张一", "13岁", "一班" }));
listView1.Items.Add(new ListViewItem(new string[] { "网二", "14岁", "二班" }));
listView1.Items.Add(new ListViewItem(new string[] { "李四", "15岁", "三班" }));
listView1.Items.Add(new ListViewItem(new string[] { "孙五", "16岁", "四班" }));
listView1.Items.Add(new ListViewItem(new string[] { "刘六", "17岁", "五班" }));
listView1.Items.Add(new ListViewItem(new string[] { "齐七", "18岁", "六班" }));
// listView1.Items.Insert(5, new ListViewItem(new string[] { "老八", "19岁", "七班" }));
}
/// <summary>
/// 当拖动某项时触发
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void listView1_ItemDrag(object sender, ItemDragEventArgs e)
{
listView1.DoDragDrop(e.Item, DragDropEffects.Move);
}
/// <summary>
/// 鼠标拖动某项至该控件的区域
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void listView1_DragEnter(object sender, DragEventArgs e)
{
e.Effect = DragDropEffects.Move;
}
/// <summary>
/// 拖动时拖着某项置于某行上方时
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void listView1_DragOver(object sender, DragEventArgs e)
{
Point ptScreen = new Point(e.X, e.Y);
Point pt = listView1.PointToClient(ptScreen);
ListViewItem item = listView1.GetItemAt(pt.X, pt.Y);
if (item != null)
item.Selected = true;
}
/// <summary>
/// 结束拖动
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void listView1_DragDrop(object sender, DragEventArgs e)
{
ListViewItem draggedItem = (ListViewItem)e.Data.GetData(typeof(ListViewItem));
Point ptScreen = new Point(e.X, e.Y);
Point pt = listView1.PointToClient(ptScreen);
ListViewItem TargetItem = listView1.GetItemAt(pt.X, pt.Y);//拖动的项将放置于该项之前
if (null == TargetItem)
return;
listView1.Items.Insert(TargetItem.Index, (ListViewItem)draggedItem.Clone());
listView1.Items.Remove(draggedItem);
}
private void button1_Click(object sender, EventArgs e)
{
int my_count = listView1.Items.Count;
Console.WriteLine(my_count);
listView1.Items.Insert(listView1.Items.Count, new ListViewItem(new string[] { "老八", "19岁", "七班" }));
}
}
}