Webdynpro Field history

Hi Friends,

How to maintain the field history in the input fields, for example, I am entering Matnr: 12345 and executing my application, next time when I close this applicatin and come back to the Matnr place the cursor on Matnr + press on Space Bar then I have to get the list of previous entered values i.e 12345.

How to do this in webdynpro....

Regards,

kumar