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SAP Script Tutorials Page 48

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52 /: SUMMING program_symbol INTO total_symbol
SAPscript cannot create the field for the total dynamically. The symbol used must be defined in
a TABLES structure in the calling program.
For details on summing and carrying forward, see Summing and Carrying Forward is Incorrect . 6.21.1 Summing and Carrying Forward is Incorrect Assume that for a multiple-page invoice, you want to print the current total as carry forward
amount or subtotal on the current page and on the subsequent page. However, the carry
forward amount is incorrect or missing.
The following causes are possible: You do not use program symbols with Dictionary reference for totalling. You place the carry forward amount into the BOTTOM area. SAPscript processes the
BOTTOM area at the beginning of a page; therefore it is not suited for carry forward
amounts. If you place the carry forwards amount into the TOP area of the main window on the
subsequent page, the carry forward amount may be higher than it should be: This
happens if the last part of text of the previous page does not fit onto the page, but the
text is held together, for example, by a PROTECT command. In this case, a local text
symbol must receive the carry forward amount. You must place the carry forward amount on the current page into a window of type VAR. On
the subsequent page, use a local text symbol to print the amount in the TOP area of the main window:
1. At the beginning of the form main text (before printing the first text element), define the amount variable and the total variable (both must be program symbols or Dictionary amount
fields). In the example below, we use the SUMMING command to determine that for each output of &SUMTAB-AMOUNT& the system automatically sums up the amount in the
total variable &SUMTAB-TOTAL&. At the end of the page, &SUMTAB-TOTAL&
contains the carry forward amount of the current page or the grand total, respectively.
In this example, we also define a local symbol &LASTPAGE& to print the grand total on
the last page.

/: SUMMING &SUMTAB-AMOUNT& INTO &SUMTAB-TOTAL&
/: DEFINE &LASTPAGE& = ` `
2. At the end of the form main text (when printing the last text element of the main window), set the local textsymbol &LASTPAGE& to a different value, such as `X':

/: DEFINE &LASTPAGE& = `X'

3. To print the carry forward amount in the TOP area of the subsequent page including the pre-text 'Carry forward' and a tab, we use the local text symbol &CARRY. The
corresponding text element is also defined in the main window:

/E CARRY
* &'Carry forward:,,'CARRY&

(CALL FUNCTION WRITE_FORM EXPORTING ELEMENT = `CARRY'
TYPE = `TOP')
4. Define the carry forward window on the current page as type VAR and position it at the end of the main window of the page. Print the carry forward amount there and define the local
text symbol &CARRY& to print the amount again in the TOP area of the subsequent page.
Use the local text symbol &LASTPAGE& to print the grand total on the last page. The carry
forward window then contains the following text (define it as paragraph T1 with tab):

/: IF &LASTPAGE& = `X'
T1 <H>Grand total:,,&SUMTAB-TOTAL&</>

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