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In this post, you will find the detailed exaplanation of properties (fields) KEY & COL_POS of field catalog (SLIS_T_FIELDCAT_ALV) with example.

In this post, we will begin with the most important programming aspect of an ALV termed Field Catalog. The field catalog is a common input required by all ALV whether you use REUSE_ALV_ methods or ABAP Class CL_GUI_ALV_GRID method. Neverthless, the data type of field catalog for both the methods are different, but they serve the same purpose.

SAP ALV or SAP List Viewer is a UI element which is used to work with tabular data in form of lists. In addition to the viewing tabular data, SAP ALV is can also be used to create and edit tabular data also. It offers many convenient spreadsheet functionalities relevant to tabular data e.g. exporting to various formats such as spreadsheets, XML etc, sorting the data, grouping the data etc.
Most of you would already know much more about the SAP ALV functionalities, so instead of spending any more time on introduction of SAP ALV, let’s dive into its programming aspects.