C#

void listBox1_SelectedIndexChanged(object sender, EventArgs e)
       {
           if(File.Exists(listBox1.SelectedItem.ToString()))
           System.Diagnostics.Process.Start(listBox1.SelectedItem.ToString());
       }

       void getDirectories()
       {
           DirectoryInfo di = new DirectoryInfo("C:\\");
           foreach (FileInfo f in di.GetFiles("*.txt"))
           {
               listBox1.Items.Add("C:\\" + f.ToString());
           }
       }

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

foreach (FileInfo f in di.GetFiles("*.txt"))
            {
                listBox1.Items.Add("C:\\" + f.ToString()); 
            }

void listBox1_SelectedIndexChanged(object sender, EventArgs e)

if(File.Exists(listBox1.SelectedItem.ToString()))

System.Diagnostics.Process.Start(listBox1.SelectedItem.ToString());

DaveyM69 wrote:

a Type is a Type, not an object so it can't be cast.

ramzg wrote:

I would like to know if I can include a progress bar when I'm trying to copy files from one location to another with :

1. The file count unknown to me.
2. The size of each file is unknown to me.

For the above conditions,

ramzg wrote:

The question is whether I can use a progress bar that shows the overall progress, just like the windows file copy progress bar...