ListView控件使用技巧

如何：向 Windows 窗体 ListView 控件中添加列

// Set to details view.
listView1.View = View.Details;
// Add a column with width 20 and left alignment.
listView1.Columns.Add("File type", 20, HorizontalAlignment.Left);

使用 Windows 窗体 ListView 控件添加和移除项

// Adds a new item with ImageIndex 3
listView1.Items.Add("List item text", 3);
// Removes the first item in the list.
listView1.Items.RemoveAt(0);
// Clears all the items.
listView1.Items.Clear();
如何：向 Windows 窗体 ListView 控件中删除列
listView1.Columns.Clear();
如何：显示 Windows 窗体 ListView 控件的图标
listView1.SmallImageList = imageList1;
// Sets the first list item to display the 4th image.
listView1.Items[0].ImageIndex = 3;
如何：使用 Windows 窗体 ListView 控件在列中显示子项
// Adds two subitems to the first list item.
listView1.Items[0].SubItems.Add("John Smith");
listView1.Items[0].SubItems.Add("Accounting");
如何：选择 Windows 窗体 ListView 控件中的项
this.listView1.Focus();
this.listView1.Items[0].Selected = true;
如何：对 Windows 窗体 ListView 控件中的项进行分组
// Adds a new group that has a left-aligned header
listView1.Groups.Add(new ListViewGroup("List item text", _
HorizontalAlignment.Left));
如何：在 Windows 窗体 ListView 控件中启用平铺视图
listView1.View = View.Tiling;
using System;
using System.Drawing;
using System.Windows.Forms;

public class ListViewTilingExample : Form
{
    private ImageList myImageList;

    public ListViewTilingExample()
    {
        // Initialize myListView.
        ListView myListView = new ListView();
        myListView.Dock = DockStyle.Fill;
        myListView.View = View.Tile;

        // Initialize the tile size.
        myListView.TileSize = new Size(400, 45);
        
        // Initialize the item icons.
        myImageList = new ImageList();
        using (Icon myIcon = new Icon("book.ico"))
        {
            myImageList.Images.Add(myIcon);
        }
        myImageList.ImageSize = new Size(32, 32);
        myListView.LargeImageList = myImageList;
        
        // Add column headers so the subitems will appear.
        myListView.Columns.AddRange(new ColumnHeader[] 
            {new ColumnHeader(), new ColumnHeader(), new ColumnHeader()});

        // Create items and add them to myListView.
        ListViewItem item0 = new ListViewItem( new string[] 
            {"Programming Windows", 
            "Petzold, Charles", 
            "1998"}, 0 );
        ListViewItem item1 = new ListViewItem( new string[] 
            {"Code: The Hidden Language of Computer Hardware and Software", 
            "Petzold, Charles", 
            "2000"}, 0 );
        ListViewItem item2 = new ListViewItem( new string[] 
            {"Programming Windows with C#", 
            "Petzold, Charles", 
            "2001"}, 0 );
        ListViewItem item3 = new ListViewItem( new string[] 
            {"Coding Techniques for Microsoft Visual Basic .NET", 
            "Connell, John", 
            "2001"}, 0 );
        ListViewItem item4 = new ListViewItem( new string[] 
            {"C# for Java Developers", 
            "Jones, Allen & Freeman, Adam", 
            "2002"}, 0 );
        ListViewItem item5 = new ListViewItem( new string[] 
            {"Microsoft .NET XML Web Services Step by Step", 
            "Jones, Allen & Freeman, Adam", 
            "2002"}, 0 );
        myListView.Items.AddRange(
            new ListViewItem[] {item0, item1, item2, item3, item4, item5});
                  
        // Initialize the form.
        this.Controls.Add(myListView);
        this.Size = new System.Drawing.Size(430, 330);
        this.Text = "ListView Tiling Example";
    }

    // Clean up any resources being used.        
    protected override void Dispose(bool disposing)
    {
        if (disposing)
        {
            myImageList.Dispose();
        }
        base.Dispose(disposing);
    }

    [STAThread]
    static void Main() 
    {
        Application.EnableVisualStyles();
        Application.Run(new ListViewTilingExample());
    }

}
如何：在 Windows 窗体 ListView 控件中显示插入标记
using System;
using System.Drawing;
using System.Windows.Forms;

public class ListViewInsertionMarkExample : Form
{
    private ListView myListView; 

    public ListViewInsertionMarkExample()
    {
        // Initialize myListView.
        myListView = new ListView();
        myListView.Dock = DockStyle.Fill;
        myListView.View = View.LargeIcon;
        myListView.MultiSelect = false;
        myListView.ListViewItemSorter = new ListViewIndexComparer();

        // Initialize the insertion mark.
        myListView.InsertionMark.Color = Color.Green;

        // Add items to myListView.
        myListView.Items.Add("zero");
        myListView.Items.Add("one");
        myListView.Items.Add("two");
        myListView.Items.Add("three");
        myListView.Items.Add("four");
        myListView.Items.Add("five");
        
        // Initialize the drag-and-drop operation when running
        // under Windows XP or a later operating system.
        if (OSFeature.Feature.IsPresent(OSFeature.Themes))
        {
            myListView.AllowDrop = true;
            myListView.ItemDrag += new ItemDragEventHandler(myListView_ItemDrag);
            myListView.DragEnter += new DragEventHandler(myListView_DragEnter);
            myListView.DragOver += new DragEventHandler(myListView_DragOver);
            myListView.DragLeave += new EventHandler(myListView_DragLeave);
            myListView.DragDrop += new DragEventHandler(myListView_DragDrop);
        }

        // Initialize the form.
        this.Text = "ListView Insertion Mark Example";
        this.Controls.Add(myListView);
    }

    [STAThread]
    static void Main() 
    {
        Application.EnableVisualStyles();
        Application.Run(new ListViewInsertionMarkExample());
    }

    // Starts the drag-and-drop operation when an item is dragged.
    private void myListView_ItemDrag(object sender, ItemDragEventArgs e)
    {
        myListView.DoDragDrop(e.Item, DragDropEffects.Move);
    }

    // Sets the target drop effect.
    private void myListView_DragEnter(object sender, DragEventArgs e)
    {
        e.Effect = e.AllowedEffect;
    }

    // Moves the insertion mark as the item is dragged.
    private void myListView_DragOver(object sender, DragEventArgs e)
    {
        // Retrieve the client coordinates of the mouse pointer.
        Point targetPoint = 
            myListView.PointToClient(new Point(e.X, e.Y));

        // Retrieve the index of the item closest to the mouse pointer.
        int targetIndex = myListView.InsertionMark.NearestIndex(targetPoint);

        // Confirm that the mouse pointer is not over the dragged item.
        if (targetIndex > -1) 
        {
            // Determine whether the mouse pointer is to the left or
            // the right of the midpoint of the closest item and set
            // the InsertionMark.AppearsAfterItem property accordingly.
            Rectangle itemBounds = myListView.GetItemRect(targetIndex);
            if ( targetPoint.X > itemBounds.Left + (itemBounds.Width / 2) )
            {
                myListView.InsertionMark.AppearsAfterItem = true;
            }
            else
            {
                myListView.InsertionMark.AppearsAfterItem = false;
            }
        }

        // Set the location of the insertion mark. If the mouse is
        // over the dragged item, the targetIndex value is -1 and
        // the insertion mark disappears.
        myListView.InsertionMark.Index = targetIndex;
    }

    // Removes the insertion mark when the mouse leaves the control.
    private void myListView_DragLeave(object sender, EventArgs e)
    {
        myListView.InsertionMark.Index = -1;
    }

    // Moves the item to the location of the insertion mark.
    private void myListView_DragDrop(object sender, DragEventArgs e)
    {
        // Retrieve the index of the insertion mark;
        int targetIndex = myListView.InsertionMark.Index;

        // If the insertion mark is not visible, exit the method.
        if (targetIndex == -1) 
        {
            return;
        }

        // If the insertion mark is to the right of the item with
        // the corresponding index, increment the target index.
        if (myListView.InsertionMark.AppearsAfterItem) 
        {
            targetIndex++;
        }

        // Retrieve the dragged item.
        ListViewItem draggedItem = 
            (ListViewItem)e.Data.GetData(typeof(ListViewItem));

        // Insert a copy of the dragged item at the target index.
        // A copy must be inserted before the original item is removed
        // to preserve item index values. 
        myListView.Items.Insert(
            targetIndex, (ListViewItem)draggedItem.Clone());

        // Remove the original copy of the dragged item.
        myListView.Items.Remove(draggedItem);
    }

    // Sorts ListViewItem objects by index.
    private class ListViewIndexComparer : System.Collections.IComparer
    {
        public int Compare(object x, object y)
        {
            return ((ListViewItem)x).Index - ((ListViewItem)y).Index;
        }
    }

}
如何：向 ListView 控件添加搜索功能
private ListView textListView = new ListView();
private TextBox searchBox = new TextBox();
private void InitializeTextSearchListView()
{
    searchBox.Location = new Point(10, 60);
    textListView.Scrollable = true;
    textListView.Width = 80;
    textListView.Height = 50;

    // Set the View to list to use the FindItemWithText method.
    textListView.View = View.List;

    // Populate the ListViewWithItems
    textListView.Items.AddRange(new ListViewItem[]{ 
        new ListViewItem("Amy Alberts"), 
        new ListViewItem("Amy Recker"), 
        new ListViewItem("Erin Hagens"), 
        new ListViewItem("Barry Johnson"), 
        new ListViewItem("Jay Hamlin"), 
        new ListViewItem("Brian Valentine"), 
        new ListViewItem("Brian Welker"), 
        new ListViewItem("Daniel Weisman") });

    // Handle the TextChanged to get the text for our search.
    searchBox.TextChanged += new EventHandler(searchBox_TextChanged);

    // Add the controls to the form.
    this.Controls.Add(textListView);
    this.Controls.Add(searchBox);

}

private void searchBox_TextChanged(object sender, EventArgs e)
{
    // Call FindItemWithText with the contents of the textbox.
    ListViewItem foundItem =
        textListView.FindItemWithText(searchBox.Text, false, 0, true);
    if (foundItem != null)
    {
        textListView.TopItem = foundItem;

    }
}