How to get size of any file in vb.net

try this.

 FileInfo fi = new FileInfo("filename");

 MessageBox.Show(((fi.Length)/1024).ToString());

Try this. It will return the size in Bytes. You can convert it to KiloByte using 1024
using (FileStream str = new FileStream(Server.MapPath("Notes.txt"), FileMode.Open))
                {
               long size = str.Length;
                }