How Do I Recalculate An Invoice

[wkalo]

Hi There
I Have an Invoice Form Invoice Head And Subform.

Calculation In Invoice_Subform Depend On A Field In Invoice Head. I Need A Code If That Field Changes A Code Will Be Triggred To Check Every Row In The Subform And Change Calculation According To The New Condition

Any Help Please

Thanks In Advance
wkalo

 

[wkalo]

Hi There
Thank You
That Was Helpfull My Problem Is Soved
Thank You Again
Best Regards

 

[wkalo]

Hi There
It Is Not Considered That I Have To Keep Calculated Fields In My Table
But The Invoice Fields With Equation Have To Calculate Field Presented on The Screen In Turn Total Is Affected By It. So By Changing One Field It Means That Calculated Equation Have To Change Accordingly In Turn The Net Total Have To Be Affected.

In My invoice There Is An Item Called VAT Field So Some Purchased Invoices Come With VAT Added On It And Some Don't. So If A Supplier Changes His Invoice From Added To Not Added Value Instead Of Changing Amount Manullay I Need It To Be Changed By Code That's All To it......
I Hope I Have Ansered Your Question......

Thank You Very Much For Your Concern....
Best Regards
wkalo