DevExtreme Angular - Column and Row Indexes

The following indexes can be used in methods and callback functions:

• Initial Column Index (or simply Column Index)
  Equals the column's index in the columns array.

• Visible Column Index
  Depends on the column's current location in the TreeList and changes dynamically when columns are reordered.

  

  This index is not equal to the index set in the column.visibleIndex option. The latter is used to reorder columns.

• Row Index
  Equals a row's order among rendered rows. This index starts from 0 and increases by 1 per row including group rows.

  

  NOTE

  Rendered rows can be outside the viewport, for example, if scrolling or row rendering mode is virtual. To get the row index, use the getRowIndexByKey method or rowIndex field in callback functions like onRowClick, onCellClick, etc.