有没有办法在 WinForms 应用程序的 ListView 内的单元格中添加按钮控件？
Adam Tegen
问问题
95028 次
11 回答
22
ListViewExtender这是您可以重用的类的代码。它不是 的派生类ListView，基本上你只是声明一个特定的列显示为按钮而不是文本。按钮的文本是子项的文本。
它允许大尺寸的列表视图没有问题，不使用 p/invoke，并且还可以与水平滚动条一起使用（这里作为答案提出的一些代码没有或者对于大量项目非常慢）。请注意，它要求扩展的 ListViewFullRowSelect设置为true并且视图类型设置为Details。
这是一个使用它的示例代码：
namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent(); // you need to add a listView named listView1 with the designer
listView1.FullRowSelect = true;
ListViewExtender extender = new ListViewExtender(listView1);
// extend 2nd column
ListViewButtonColumn buttonAction = new ListViewButtonColumn(1);
buttonAction.Click += OnButtonActionClick;
buttonAction.FixedWidth = true;
extender.AddColumn(buttonAction);
for (int i = 0; i < 10000; i++)
{
ListViewItem item = listView1.Items.Add("item" + i);
item.SubItems.Add("button " + i);
}
}
private void OnButtonActionClick(object sender, ListViewColumnMouseEventArgs e)
{
MessageBox.Show(this, @"you clicked " + e.SubItem.Text);
}
}
}
这是 ListViewExtender 代码和相关类：
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Windows.Forms;
using System.Windows.Forms.VisualStyles;
namespace WindowsFormsApplication1
{
public class ListViewExtender : IDisposable
{
private readonly Dictionary<int, ListViewColumn> _columns = new Dictionary<int, ListViewColumn>();
public ListViewExtender(ListView listView)
{
if (listView == null)
throw new ArgumentNullException("listView");
if (listView.View != View.Details)
throw new ArgumentException(null, "listView");
ListView = listView;
ListView.OwnerDraw = true;
ListView.DrawItem += OnDrawItem;
ListView.DrawSubItem += OnDrawSubItem;
ListView.DrawColumnHeader += OnDrawColumnHeader;
ListView.MouseMove += OnMouseMove;
ListView.MouseClick += OnMouseClick;
Font = new Font(ListView.Font.FontFamily, ListView.Font.Size - 2);
}
public virtual Font Font { get; private set; }
public ListView ListView { get; private set; }
protected virtual void OnMouseClick(object sender, MouseEventArgs e)
{
ListViewItem item;
ListViewItem.ListViewSubItem sub;
ListViewColumn column = GetColumnAt(e.X, e.Y, out item, out sub);
if (column != null)
{
column.MouseClick(e, item, sub);
}
}
public ListViewColumn GetColumnAt(int x, int y, out ListViewItem item, out ListViewItem.ListViewSubItem subItem)
{
subItem = null;
item = ListView.GetItemAt(x, y);
if (item == null)
return null;
subItem = item.GetSubItemAt(x, y);
if (subItem == null)
return null;
for (int i = 0; i < item.SubItems.Count; i++)
{
if (item.SubItems[i] == subItem)
return GetColumn(i);
}
return null;
}
protected virtual void OnMouseMove(object sender, MouseEventArgs e)
{
ListViewItem item;
ListViewItem.ListViewSubItem sub;
ListViewColumn column = GetColumnAt(e.X, e.Y, out item, out sub);
if (column != null)
{
column.Invalidate(item, sub);
return;
}
if (item != null)
{
ListView.Invalidate(item.Bounds);
}
}
protected virtual void OnDrawColumnHeader(object sender, DrawListViewColumnHeaderEventArgs e)
{
e.DrawDefault = true;
}
protected virtual void OnDrawSubItem(object sender, DrawListViewSubItemEventArgs e)
{
ListViewColumn column = GetColumn(e.ColumnIndex);
if (column == null)
{
e.DrawDefault = true;
return;
}
column.Draw(e);
}
protected virtual void OnDrawItem(object sender, DrawListViewItemEventArgs e)
{
// do nothing
}
public void AddColumn(ListViewColumn column)
{
if (column == null)
throw new ArgumentNullException("column");
column.Extender = this;
_columns[column.ColumnIndex] = column;
}
public ListViewColumn GetColumn(int index)
{
ListViewColumn column;
return _columns.TryGetValue(index, out column) ? column : null;
}
public IEnumerable<ListViewColumn> Columns
{
get
{
return _columns.Values;
}
}
public virtual void Dispose()
{
if (Font != null)
{
Font.Dispose();
Font = null;
}
}
}
public abstract class ListViewColumn
{
public event EventHandler<ListViewColumnMouseEventArgs> Click;
protected ListViewColumn(int columnIndex)
{
if (columnIndex < 0)
throw new ArgumentException(null, "columnIndex");
ColumnIndex = columnIndex;
}
public virtual ListViewExtender Extender { get; protected internal set; }
public int ColumnIndex { get; private set; }
public virtual Font Font
{
get
{
return Extender == null ? null : Extender.Font;
}
}
public ListView ListView
{
get
{
return Extender == null ? null : Extender.ListView;
}
}
public abstract void Draw(DrawListViewSubItemEventArgs e);
public virtual void MouseClick(MouseEventArgs e, ListViewItem item, ListViewItem.ListViewSubItem subItem)
{
if (Click != null)
{
Click(this, new ListViewColumnMouseEventArgs(e, item, subItem));
}
}
public virtual void Invalidate(ListViewItem item, ListViewItem.ListViewSubItem subItem)
{
if (Extender != null)
{
Extender.ListView.Invalidate(subItem.Bounds);
}
}
}
public class ListViewColumnMouseEventArgs : MouseEventArgs
{
public ListViewColumnMouseEventArgs(MouseEventArgs e, ListViewItem item, ListViewItem.ListViewSubItem subItem)
: base(e.Button, e.Clicks, e.X, e.Y, e.Delta)
{
Item = item;
SubItem = subItem;
}
public ListViewItem Item { get; private set; }
public ListViewItem.ListViewSubItem SubItem { get; private set; }
}
public class ListViewButtonColumn : ListViewColumn
{
private Rectangle _hot = Rectangle.Empty;
public ListViewButtonColumn(int columnIndex)
: base(columnIndex)
{
}
public bool FixedWidth { get; set; }
public bool DrawIfEmpty { get; set; }
public override ListViewExtender Extender
{
get
{
return base.Extender;
}
protected internal set
{
base.Extender = value;
if (FixedWidth)
{
base.Extender.ListView.ColumnWidthChanging += OnColumnWidthChanging;
}
}
}
protected virtual void OnColumnWidthChanging(object sender, ColumnWidthChangingEventArgs e)
{
if (e.ColumnIndex == ColumnIndex)
{
e.Cancel = true;
e.NewWidth = ListView.Columns[e.ColumnIndex].Width;
}
}
public override void Draw(DrawListViewSubItemEventArgs e)
{
if (_hot != Rectangle.Empty)
{
if (_hot != e.Bounds)
{
ListView.Invalidate(_hot);
_hot = Rectangle.Empty;
}
}
if ((!DrawIfEmpty) && (string.IsNullOrEmpty(e.SubItem.Text)))
return;
Point mouse = e.Item.ListView.PointToClient(Control.MousePosition);
if ((ListView.GetItemAt(mouse.X, mouse.Y) == e.Item) && (e.Item.GetSubItemAt(mouse.X, mouse.Y) == e.SubItem))
{
ButtonRenderer.DrawButton(e.Graphics, e.Bounds, e.SubItem.Text, Font, true, PushButtonState.Hot);
_hot = e.Bounds;
}
else
{
ButtonRenderer.DrawButton(e.Graphics, e.Bounds, e.SubItem.Text, Font, false, PushButtonState.Default);
}
}
}
}
于 2010-12-28T10:27:10.483 回答
14
The ListView itself (or ListViewItem) does not function as a container of any kind so no way to add controls directly, however it is doable. I have used this extended ListView with a lot of success: Embedding Controls in a ListView.
于 2009-03-09T23:46:20.797 回答
7
这是 WinForms 的最佳自定义列表视图控件。
对象列表视图
于 2011-02-25T22:44:49.010 回答
3
为了使 Simon Mourier 的扩展器工作，缺少以下行：
extender.AddColumn(buttonAction);
也就是说，它应该如下所示：
ListViewExtender extender = new ListViewExtender(listSummary);
ListViewButtonColumn buttonAction = new ListViewButtonColumn(2);
buttonAction.Click += OnButtonActionClick;
buttonAction.FixedWidth = true;
extender.AddColumn(buttonAction);
于 2012-08-19T14:18:48.317 回答
1
不，是的，ListView 本身不支持此类功能，但您可以在其上创建一个按钮，以便它作为列表视图的组成部分向用户显示。（我想这也是上面提到的 ExtendedListView 所做的）。
于 2010-12-02T13:24:40.087 回答
1
于 2009-02-10T17:57:14.337 回答
1
不，标准的 Windows 窗体 ListView 不支持嵌入式控件。您可以尝试构建自己的自定义控件，也可以使用类似http://www.codeproject.com/KB/list/EXListView.aspx的东西。
于 2010-07-30T22:34:43.817 回答
1
也许值得一提的是，列表视图控件可能在 WPF 中设计为用户控件/自定义控件，在其 ListViewItems 中带有按钮，然后在 WinForms 应用程序中的ElementHost控件中使用此控件。
于 2010-12-23T08:45:50.523 回答
0
我之前无意中遇到过一个讨论，希望对您有所帮助：http ://social.msdn.microsoft.com/Forums/en-US/winforms/thread/ee232cc4-68c5-4ed3-9ea7-d4d999956504/
于 2010-12-23T06:52:41.590 回答
0
您可以使用GlacialList。它允许您将任何控件放在列表单元格中，并且使用起来很简单。您只需将 GlacialList.dll 文档加入解决方案的参考部分。如果您单击该链接，它将向您展示它的工作原理以及如何使用和下载它。
如果您有从上面System.IO.FileNotFoundException的InitializeComponent()链接下载的源代码，编译并使用这个 .dll（在 bin/Debug 子文件夹中）到您的项目。
这是它的外观示例：
于 2019-08-14T16:04:28.873 回答
-3
这看起来像是我遇到的最简单的答案......只是ItemCommand在ListView.
请参阅此链接：handle-the-button-click-event-from-an-asp-net-listview-control
于 2012-07-04T00:23:34.837 回答