CellIndex.indexByColumnRow constructor
CellIndex.indexByColumnRow(columnIndex: 0, rowIndex: 0 ); // A1
CellIndex.indexByColumnRow(columnIndex: 0, rowIndex: 1 ); // A2
Implementation
factory CellIndex.indexByColumnRow(
{required int columnIndex, required int rowIndex}) {
return CellIndex._(columnIndex: columnIndex, rowIndex: rowIndex);
}