Sum of row level Field in Header level UDF

Dear All,

In A/R Invoice, can I take U_UnitPrice field's (udf at rowlevel of A/R Invoice) sum at header level udf i.e. U_SumLC

I like to do this by Formatted search.

Can any body help me.

Wtih Warm Regards,

Chintesh Soni

+91-94276 08674