File Size Dynamically Updating In A Label?

Using VB 2008 Express.

How would I create a label that reports a file size at all times? Or, on a regular basis, say every 10 seconds or so.

In my form, I want a label to watch certain file sizes (logs, etc.) in case one suddenly becomes too big.

It is easy enough to report a static file size when a form launches, but changing it dynamically...I don't know how to do that yet.

The following example is generic and simplified for illustration purposes.

The file is C:Applicationapplication.log

The label might include:

("The application.log file is {0} bytes.",GetFileInfo.Length)

or something like that. But that would report a file size once and never again unless I quit and restart the form.

If any .NET concept is used, can you provide a link to the documentation or msdn stuff?