C# ListView.GetItemAt方法代码示例

private void PopulateListView()
{
    ListView1.Width = 270;
    ListView1.Location = new System.Drawing.Point(10, 10);

    // Declare and construct the ColumnHeader objects.
    ColumnHeader header1, header2;
    header1 = new ColumnHeader();
    header2 = new ColumnHeader();

    // Set the text, alignment and width for each column header.
    header1.Text = "File name";
    header1.TextAlign = HorizontalAlignment.Left;
    header1.Width = 70;

    header2.TextAlign = HorizontalAlignment.Left;
    header2.Text = "Location";
    header2.Width = 200;

    // Add the headers to the ListView control.
    ListView1.Columns.Add(header1);
    ListView1.Columns.Add(header2);

    // Specify that each item appears on a separate line.
    ListView1.View = View.Details;
    
    // Populate the ListView.Items property.
    // Set the directory to the sample picture directory.
    System.IO.DirectoryInfo dirInfo = 
        new System.IO.DirectoryInfo(
        "C:\\Documents and Settings\\All Users" +
        "\\Documents\\My Pictures\\Sample Pictures");

    // Get the .jpg files from the directory
    System.IO.FileInfo[] files = dirInfo.GetFiles("*.jpg");

    // Add each file name and full name including path
    // to the ListView.
    if (files != null)
    {
        foreach ( System.IO.FileInfo file in files )
        {
            ListViewItem item = new ListViewItem(file.Name);
            item.SubItems.Add(file.FullName);
            ListView1.Items.Add(item);
        }
    }
}

private void InitializePictureBox()
{
    PictureBox1 = new PictureBox();

    // Set the location and size of the PictureBox control.
    this.PictureBox1.Location = new System.Drawing.Point(70, 120);
    this.PictureBox1.Size = new System.Drawing.Size(140, 140);
    this.PictureBox1.TabStop = false;

    // Set the SizeMode property to the StretchImage value.  This
    // will shrink or enlarge the image as needed to fit into
    // the PictureBox.
    this.PictureBox1.SizeMode = PictureBoxSizeMode.StretchImage;

    // Set the border style to a three-dimensional border.
    this.PictureBox1.BorderStyle = BorderStyle.Fixed3D;

    // Add the PictureBox to the form.
    this.Controls.Add(this.PictureBox1);
}

private void ListView1_MouseDown(object sender, MouseEventArgs e)
{

    ListViewItem selection = ListView1.GetItemAt(e.X, e.Y);

    // If the user selects an item in the ListView, display
    // the image in the PictureBox.
    if (selection != null)
    {
        PictureBox1.Image = System.Drawing.Image.FromFile(
            selection.SubItems[1].Text);
    }
}