Subclass ListViewItem

[MikeB]

I want to save a FileInfo object to my list view items.

class ListViewItemEx : ListViewItem
    {
        private FileInfo _info;
        public FileInfo Info
        {
            get { return _info; }
            set { _info = value; }
        }

        public ListViewItemEx(FileInfo fi)
        {
            _info = fi;
        }
     }

The list view is in details view. The items are added but the item text is not displayed. What to I have to do to get the list view to show the FileInfo::Name property.

Any suggestions?

Mike B

[toraj58]

Try this:

public override string ToString()
{

return _info;

}

Touraj Ebrahimi [toraj_e] [at] [yahoo] [dot] [com]

[darwen]

Why not just add an ordinary ListViewItem and set the text on it ?

You can set the Tag property to your file info if you need to go from selected item to FileInfo e.g.

void AddFileInfo(FileInfo fileInfo)
{
   ListViewItem newItem = _listView.Items.Add(fileInfo.Name);
   newItem.Tag = fileInfo;
}

FileInfo GetFileInfo(ListViewItem item)
{
    return item.Tag as FileInfo;
}

Darwen.

[Arjay]

It's too bad the WinForms ListView doesn't have a DataSource member to support data binding. Here's an example of how slick this is for a listbox.

public partial class Form1 : Form
{
	public Form1( )
	{
		InitializeComponent( );

		DirectoryInfo directoryInfo = new DirectoryInfo( "C:\\" );

		foreach( FileInfo fileInfo in directoryInfo.GetFiles( ) )
		{
			_fileInfoList.Add( fileInfo );
		}

		this.listBox1.DataSource = _fileInfoList;
		this.listBox1.DisplayMember = "Name";
	}

	private void listBox1_MouseDoubleClick( object sender, MouseEventArgs e )
	{
		FileInfo fileInfo = listBox1.SelectedItem as FileInfo;

		if( null == fileInfo ) return;

		MessageBox.Show( String.Format( "Name:\t\t'{0}'\nFullName:\t\t'{1}'\nFileSize:\t\t{2}"
								, fileInfo.Name
								, fileInfo.FullName
								, fileInfo.Length ) );
	}

	private BindingList<FileInfo> _fileInfoList = new BindingList<FileInfo>( );
}