wait for all fields to be filled in before calculating

[Saturn57]

I would like a form to calculate values any time a field is changed however those calculations are based on all of some specific fields to be filled in to perform the calculation. How can i have an automatic calculation to occur everytime a field is changed but hold off that calculation until all required fields are filled in. Is there a way to use an if statement with an and ex:
if (text1 and text 2 and text 3.... > 0)

 

[RyanEK]

Hook up a changed event to each control (for a textbox it's 'TextChanged') that calls your calculate method. Within your calculate method just specify the conditions eg.

if (Convert.ToInt32(Text1.Text) > 0 && Convert.ToInt32(Text2.Text) > 0 && etc...) then
   ...

Ryan