Tables :: Saving ONE TIME Calculation To Table

Nov 12, 2012

Access 2003. I am trying to save a calculated field (Item No) from a form to the accosiated field within the Products table

I have a hidden text box (itemNo) which is bound to the relevant field and a second text box with the following formula

="TV-" & Left(CatShort.column(1),3) & "-" & Format([ProductID],"0000") as its source

What I am trying to do is to provide an item number for each item of stock based on the Category short name (Catshort) and the incremented item ID Number, with a TV prefix.

I am aware that its a bad itea to place calculated field into the table if the calculation is likely to change, however once my calculation is stored it has no need to change.

I have tried the beforeUpdate method within the ItemNo textbox

Private Sub ItemNo_BeforeUpdate(Cancel As Integer)
Me!ItemNo = Me!ItemCalc
End Sub

but nothing happens (in that the table is not updated)

Any way of putting together an incremental item number based on the selected category with a "TV" prefix....

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Table
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