///可编辑listview类EditableListView.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Drawing;
using System.Runtime.InteropServices;
namespace testlistview
{
public class
ListViewCell
{
///
/// 单元格所在的行。
///
public ListViewItem Item { get; set; }
///
/// Item 的 Index 值会变成 -1，暂时未找到原因，用这个代替。
///
public int ItemIndex { get; set; }
///
/// 单元格所在的列。
///
public ColumnHeader Column { get; set; }
///
/// 单元格相对于 ListView 的大小和位置。
///
public Rectangle Bounds { get; set; }
}
public class
ListViewCellLocator
{
[DllImport("user32")]
public static extern int GetScrollPos(int hwnd,
int nBar);
///
/// 根据位置 x、y 获得 ListViewCell。
///
///
/// 工作区坐标表示的 x 轴坐标。
/// 工作区坐标表示的 y 轴坐标。
///
public static ListViewCell GetCell(ListView
listView, int x, int y)
{
ListViewCell cell = new ListViewCell();
//
获得单元格所在的行。
cell.Item
= listView.GetItemAt(x, y);
if
(cell.Item == null)
{
return null;
}
cell.ItemIndex = cell.Item.Index; // 现在 Item.Index 还能用
//
根据各列宽度，获得单元格所在的列，以及 Bounds。
int
currentX = cell.Item.GetBounds(ItemBoundsPortion.Entire).Left; //
依次循环各列，表示各列的起点值
int
scrollLeft = GetScrollPos(listView.Handle.ToInt32(), 0); //
可能出现了横向滚动条，左边隐藏起来的宽度
for (int i
= 0; i < listView.Columns.Count; i++)
{
if (scrollLeft + x >=
currentX &&
scrollLeft + x < currentX +
listView.Columns[i].Width)
{
cell.Column = listView.Columns[i]; // 列找到了
Rectangle itemBounds =
cell.Item.GetBounds(ItemBoundsPortion.Entire);
cell.Bounds = new Rectangle(currentX,
itemBounds.Y,
listView.Columns[i].Width,
itemBounds.Height);
break;
}
currentX +=
listView.Columns[i].Width;
}
if
(cell.Column == null)
{
return null;
}
return
cell;
}
}
public class
EditableListViewSubmittingEventArgs : EventArgs
{
public ListViewCell Cell { get; set; }
public string Value { get; set; }
}
public delegate void
EditableListViewSubmitting(object sender,
EditableListViewSubmittingEventArgs e);
class
EditableListView
{
public event EditableListViewSubmitting
Submitting;
private ListView ListView { get; set; }
private Point MousePosition = new Point();
private TextBox EditBox { get; set; }
public int[] TextBoxColumns { get; set; }
public EditableListView(ListView listView)
{
// 初始化
EditBox
EditBox =
new TextBox();
EditBox.Visible = false;
EditBox.KeyUp += new KeyEventHandler(KeyUpHandle);
EditBox.LostFocus += new EventHandler(EditBox_LostForcus);
// 设置
ListView
ListView =
listView;
ListView.MouseMove += new MouseEventHandler(delegate(object sender,
MouseEventArgs e)
{
//
记录鼠标位置，便于在鼠标动作中使用（有些鼠标动作，比如双击，事件中并不传递鼠标双击时的位置）。
MousePosition.X = e.X;
MousePosition.Y = e.Y;
});
EditBox.Parent = ListView;
//
事件
ListView.DoubleClick += new EventHandler(EditItem);
}
private void KeyUpHandle(object sender,
KeyEventArgs e) {
if
(e.KeyCode == Keys.Escape)
{
LeaveEdit();
}
else if
(e.KeyCode == Keys.Enter)
{
SaveEdit();
}
}
private void EditBox_LostForcus(object sender,
EventArgs e) {
SaveEdit();
}
private void SaveEdit() {
if
(Submitting != null)
{
EditableListViewSubmittingEventArgs args = new
EditableListViewSubmittingEventArgs();
if (EditBox.Tag !=
null)
{
args.Cell = (ListViewCell)EditBox.Tag;
}
else
{
args.Cell = null;
}
args.Value =
EditBox.Text;
LeaveEdit();
Submitting(ListView,
args);
}
}
private void EditItem(object sender, EventArgs
e) {
ListViewCell cell = ListViewCellLocator.GetCell(this.ListView,
MousePosition.X, MousePosition.Y);
if (cell
== null)
{
return;
}
if
(TextBoxColumns.Contains(cell.Column.Index))
{
// 设置 EditBox
的位置、大小、内容、可显示等。
EditBox.Bounds =
cell.Bounds;
EditBox.Text =
cell.Item.SubItems[cell.Column.Index].Text;
EditBox.Visible = true;
EditBox.Focus();
EditBox.Tag = cell;
}
}
public bool IsEditableColumn(int
columnIndex)
{
if
(TextBoxColumns.Contains(columnIndex))
{
return true;
}
return
false;
}
public void LeaveEdit()
{
EditBox.Visible = false;
EditBox.Tag = null;
}
}
}
///窗体类form1.cs
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;
namespace testlistview
{
public partial class
Form1 : Form
{
private EditableListView list;
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs
e)
{
listView1.Columns.Add("测试");
listView1.Columns.Add("测试12");
ListViewItem lvi = new ListViewItem();
lvi.Text =
"第一列";
lvi.SubItems.Add("第二列");
listView1.Items.Add(lvi);
list = new
EditableListView(listView1);
list.TextBoxColumns = new int[] {0, 1, 2, 3 };
list.Submitting += new
EditableListViewSubmitting(listViewSaveEditHandler);
}
private void listViewSaveEditHandler(object
sender, EditableListViewSubmittingEventArgs e)
{
if (e.Cell
== null)
{
return;
}
string
value = e.Value;
ListViewItem item = e.Cell.Item;
int
itemindex = e.Cell.Column.Index;
item.SubItems[itemindex].Text = value;
}
}
}
plus：如果第二列不能编辑 可以将listview1控件的FullRowSelect属性改为true
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