How to Fire event in Web Dynpro?

Hi All,

I'm a Web Dynpro newbie.

I have a view with a button, two input fields and a drop down.

Pushing the button populates the drop down with values according to the two input fields.

The two input fields have default values and I want to "simulate" a button pushed action (call the method) when the view initializes (on the view's "wddoinit").

how do I that? (The "OnActionBtn" needs event parameter so I can't call it)

thanks,

Omri