how to know refresh datalink in visio?

[question mark]

i want to make application with visio.
but i don't know what to do
i want to know that "how to check(or know) refresh datalink..

i had make timeline everytime 1minute ..
then refresh a datalink.
how do i?

 

[AlEdlund]

Some first steps.

To understand some of the operational basics
http://office.microsoft.com/en-us/training/HA102143681033.aspx

The visio sdk to begin to understand coding some datarecordset basics.

To see an example of applying data to the timeline addin
http://bvisual.spaces.live.com/blog/cns!3350D61BC93733A9!552.entry

al