Create the FileInfo class from the file selected in the OpenFileDialog
using System;
using System.Windows.Forms;
using System.IO;
class MainClass
{
public static void Main()
{
OpenFileDialog dlgOpen = new OpenFileDialog();
if (dlgOpen.ShowDialog() == DialogResult.OK)
{
FileInfo fi = new FileInfo(dlgOpen.FileName);
Console.WriteLine("Filename " + fi.FullName );
Console.WriteLine(" Created at " + fi.CreationTime );
Console.WriteLine(" Accessed at " + fi.LastAccessTime );
}
}
}