Tally Definition Language (TDL) is the development of Tally.ERP 9. This allows the programmers to
develop and deploy faster, effective Tally Extensions with ease.
The book, Extending Tally.ERP 9 Using TDL, begins with the Introduction to TDL and focuses on
basic concepts of TDL ie TDL Components, Symbols used in TDL, Dimensions and Formatting,
Usage of Variables, Buttons and Keys.
Thereafter the emphasis is on the coverage of core concepts of Objects, Methods and Collections,
Actions and UDF creation. After gaining a reasonable amount of depth and confidence in
understanding the above, the focus of the book progresses towards the application of all covered
topics ie., the creation of various types of Reports, Printing and Voucher/Invoice customisations.
This book is for anyone who wants to explore TDL as a development language of Tally and how to
write TDL programs effectively. Absolutely no previous TDL experience is necessary. Even
advanced users will find this book useful, as the changes to TDL are dealt from the developers and
the user’s point of view.
You will enjoy reading this book, as it is rich in concepts