removeCol method
Implementation
void removeCol(String name) {
var colIndex = _cols.map((c) => c.name).toList().indexOf(name);
if (colIndex < 0) return;
_cols.removeAt(colIndex);
_rows.forEach((vals) => vals.removeAt(colIndex));
}
void removeCol(String name) {
var colIndex = _cols.map((c) => c.name).toList().indexOf(name);
if (colIndex < 0) return;
_cols.removeAt(colIndex);
_rows.forEach((vals) => vals.removeAt(colIndex));
}