在WinForms中将按钮添加到列表视图中
有没有办法将按钮控件添加到WinForms应用程序的ListView中的单元格中?也许这会引起兴趣在WinForms中将按钮添加到列表视图中,winforms,listview,button,Winforms,Listview,Button,有没有办法将按钮控件添加到WinForms应用程序的ListView中的单元格中?也许这会引起兴趣 ListView本身(或ListViewItem)不作为任何类型的容器使用,因此无法直接添加控件,但这是可行的。我成功地使用了这个扩展的ListView:。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,也可以使用类似的功能。否,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,以便用户将其视为ListView的组成部分。(我想这也
ListView本身(或ListViewItem)不作为任何类型的容器使用,因此无法直接添加控件,但这是可行的。我成功地使用了这个扩展的ListView:。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,也可以使用类似的功能。否,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,以便用户将其视为ListView的组成部分。(我想这也是上面提到的ExtendedListView所做的)。我以前偶然遇到过一个讨论,希望这有帮助:也许值得一提,列表视图控件可能在WPF中设计为一个用户控件/自定义控件,在其ListViewItems中带有按钮,然后在WinForms应用程序中使用此控件,在控件中。这里是类的代码
ListViewExtender
,您可以重用它。它不是ListView
的派生类,基本上您只需声明特定列显示为按钮而不是文本。按钮的文本是子项的文本
它允许无问题的大型列表视图,不使用p/invoke,也可以使用水平滚动条(这里建议的一些答案代码没有,或者对于大量项目来说速度非常慢)。注意:它要求扩展列表视图将FullRowSelect
设置为true
,并将视图类型设置为Details
这是使用它的示例代码:
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);
}
}
}
命名空间窗口窗体应用程序1
{
公共部分类Form1:Form
{
公共表格1()
{
InitializeComponent();//需要使用设计器添加名为listView1的listView
listView1.FullRowSelect=true;
ListViewExtender extender=新的ListViewExtender(listView1);
//延长第二列
ListViewButtonColumn buttonAction=新ListViewButtonColumn(1);
按钮操作。单击+=打开按钮操作单击;
buttonAction.FixedWidth=true;
extender.AddColumn(按钮操作);
对于(int i=0;i<10000;i++)
{
ListViewItem项目=listView1.Items.Add(“项目”+i);
项目。子项目。添加(“按钮”+i);
}
}
私有void OnButtonActionClick(对象发送者,ListViewColumnMouseeEventargs e)
{
MessageBox.Show(此@“您单击了”+e.SubItem.Text);
}
}
}
以下是ListViewExtender代码和关联的类:
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);
}
}
}
}
使用系统;
使用System.Collections.Generic;
使用系统图;
使用System.Windows.Forms;
使用System.Windows.Forms.VisualStyles;
命名空间Windows窗体应用程序1
{
公共类ListViewExtender:IDisposable
{
专用只读词典_columns=new Dictionary();
公共ListViewExtender(ListView ListView)
{
如果(listView==null)
抛出新的ArgumentNullException(“listView”);
if(listView.View!=View.Details)
抛出新ArgumentException(null,“listView”);
ListView=ListView;
ListView.OwnerDraw=true;
ListView.DrawItem+=OnDrawItem;
ListView.DrawSubItem+=OnDrawSubItem;
ListView.DrawColumnHeader+=OnDrawColumnHeader;
ListView.MouseMove+=OnMouseMove;
ListView.MouseClick+=OnMouseClick;
字体=新字体(ListView.Font.FontFamily,ListView.Font.Size-2);
}
公共虚拟字体{get;private set;}
公共列表视图列表视图{get;private set;}
MouseClick上受保护的虚拟无效(对象发送方,MouseEventArgs e)
{
ListViewItem项目;
ListViewItem.ListViewSubItem子项;
ListViewColumn column=GetColumnAt(e.X,e.Y,out item,out sub);
if(列!=null)
{
列。鼠标单击(e,项,子项);
}
}
公共ListViewColumn GetColumnAt(int x,int y,out ListViewItem项,out ListViewItem.ListViewSubItem子项)
{
子项=空;
item=ListView.GetItemAt(x,y);
如果(项==null)
返回null;
subItem=item.GetSubItemAt(x,y);
if(子项==null)
返回null;
对于(int i=0;iextender.AddColumn(buttonAction);
ListViewExtender extender = new ListViewExtender(listSummary);
ListViewButtonColumn buttonAction = new ListViewButtonColumn(2);
buttonAction.Click += OnButtonActionClick;
buttonAction.FixedWidth = true;
extender.AddColumn(buttonAction);