Csharp/CSharp Tutorial/GUI Windows Forms/ListViewItem

Create a ListViewItem and add it to ListView

<source lang="csharp">using System; using System.IO; using System.Windows.Forms; public class ListViewFileInfoFormDemo{

   [STAThread]
   public static void Main(string[] args)
   {
       Application.Run(new ListViewFileInfoForm());
   }

} public partial class ListViewFileInfoForm : Form {

   public ListViewFileInfoForm()
   {
       InitializeComponent();
   }
   protected override void OnLoad(EventArgs e)
   {
       base.OnLoad(e);
       DirectoryInfo directory = new DirectoryInfo(@"C:\");
       FileInfo[] files = directory.GetFiles();
       foreach (FileInfo file in files)
       {
           ListViewItem item = listView1.Items.Add(file.Name);
           //item.ImageIndex = 0;
           item.Tag = file;
       }
   }
   private void listView1_ItemActivate(object sender, EventArgs e)
   {
       ListViewItem item = ((ListView)sender).SelectedItems[0];
       FileInfo file = (FileInfo)item.Tag;
       string info = file.FullName + " is " + file.Length + " bytes.";
       MessageBox.Show(info, "File Information");
   }

} partial class ListViewFileInfoForm {

   private System.ruponentModel.IContainer components = null;
   protected override void Dispose(bool disposing)
   {
       if (disposing && (components != null))
       {
           components.Dispose();
       }
       base.Dispose(disposing);
   }
   private void InitializeComponent()
   {
       this.ruponents = new System.ruponentModel.Container();
       this.listView1 = new System.Windows.Forms.ListView();
       this.SuspendLayout();
       this.listView1.Dock = System.Windows.Forms.DockStyle.Fill;
       this.listView1.Location = new System.Drawing.Point(0, 0);
       this.listView1.MultiSelect = false;
       this.listView1.Name = "listView1";
       this.listView1.Size = new System.Drawing.Size(292, 266);
       this.listView1.TabIndex = 0;
       this.listView1.UseCompatibleStateImageBehavior = false;
       this.listView1.ItemActivate += new System.EventHandler(this.listView1_ItemActivate);
       this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
       this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
       this.ClientSize = new System.Drawing.Size(292, 266);
       this.Controls.Add(this.listView1);
       this.Name = "ListViewFileInfoForm";
       this.Text = "ListViewFileInfoForm";
       this.ResumeLayout(false);
   }
   private System.Windows.Forms.ListView listView1;

}</source>

ListView item activation event

<source lang="csharp">using System; using System.IO; using System.Windows.Forms; public class ListViewItemActivateFormDemo{

   [STAThread]
   public static void Main(string[] args)
   {
       Application.Run(new ListViewItemActivateForm());
   }

} public partial class ListViewItemActivateForm : Form {

   public ListViewItemActivateForm()
   {
       InitializeComponent();
   }
   protected override void OnLoad(EventArgs e)
   {
       base.OnLoad(e);
       DirectoryInfo directory = new DirectoryInfo(@"C:\");
       FileInfo[] files = directory.GetFiles();
       foreach (FileInfo file in files)
       {
           ListViewItem item = listView1.Items.Add(file.Name);
           item.ImageIndex = 0;
           item.Tag = file;
       }
   }
   private void listView1_ItemActivate(object sender, EventArgs e)
   {
       ListViewItem item = ((ListView)sender).SelectedItems[0];
       FileInfo file = (FileInfo)item.Tag;
       string info = file.FullName + " is " + file.Length + " bytes.";
       MessageBox.Show(info, "File Information");
   }

} partial class ListViewItemActivateForm {

   private System.ruponentModel.IContainer components = null;
   protected override void Dispose(bool disposing)
   {
       if (disposing && (components != null))
       {
           components.Dispose();
       }
       base.Dispose(disposing);
   }
   private void InitializeComponent()
   {
       this.ruponents = new System.ruponentModel.Container();
       this.listView1 = new System.Windows.Forms.ListView();
       this.SuspendLayout();
       this.listView1.Dock = System.Windows.Forms.DockStyle.Fill;
       this.listView1.Location = new System.Drawing.Point(0, 0);
       this.listView1.MultiSelect = false;
       this.listView1.Name = "listView1";
       this.listView1.Size = new System.Drawing.Size(292, 266);
       this.listView1.TabIndex = 0;
       this.listView1.UseCompatibleStateImageBehavior = false;
       this.listView1.ItemActivate += new System.EventHandler(this.listView1_ItemActivate);
       this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
       this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
       this.ClientSize = new System.Drawing.Size(292, 266);
       this.Controls.Add(this.listView1);
       this.Name = "ListViewItemActivateForm";
       this.Text = "ListViewItemActivateForm";
       this.ResumeLayout(false);
   }
   private System.Windows.Forms.ListView listView1;

}</source>