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Sunday, July 1, 2007

Using $$CollectionField Function

This post illustrates how to use the $$CollectionField Tally Internal Function.

Download program TDL30

;; PRODUCT: TDL30.TXT
;; PRODUCT-ID: br535cfa-1r7f-3h7a-31h3-a5r55a994e6w
;; AUTHOR: Shweta Computers
;;=========================================================================

;;Add a new menu-item to the Gateway of Tally
[#Menu: Gateway of Tally]
Item: CollectionField Example: Display: My Report

[Report: My Report]
Form : My Form

[Form: My Form]
Part: My Part
Full Width: Yes
Full Height: Yes

[Part: My Part]
Line: My Line
Repeat : My Line: My Collection
Scroll: Vertical
Common Border: Yes

[Line: My Line]
Left Fields: Myfld1,MyFld2,MyFld3,MyFld4

[Field: Myfld1]
;;TYPE attribute specifies the data-type of the field
Type: Date
Set as : $Date

[Field: Myfld2]
;;The USE keyword inherits the functionality/properties of the specified object
Use : Short Name Field
Set as : $VoucherTypeName

[Field: Myfld3]
Use : Name Field
Set as : $$CollectionField:$LedgerName:1:AllLedgerEntries

[Field: Myfld4]
Use : Amount Field
Set as : $Amount

;;Collection definition
[Collection: My Collection]
Type: Voucher
;; Notes:-
1) $$CollectionField is a Tally Internal Function. It returns the Method/Field
data of the specified Collection as applied on the "nth" object of the
Collection. In the above code, it fetches the 1st LedgerName from the
Collection "AllLedgerEntries".

Syntax: $$CollectionField: <Method/Field> : <PositionNumber> : <Collection>
Return Value: Method/Field value as specified as the 1st argument

2) AllLedgerEntries is a pre-defined Collection that contains Ledger details
for the VOUCHER object. $LedgerName is a method/Field of this collection.

3) Date,VoucherTypeName,VoucherNumber,Amount are methods/fields of
VOUCHER object.

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