Flutter Data table - How to sort List of custom Objects

Data Table and update data and sort the data based on data item selection. What is Data Table [DataTable] can be sorted on the basis of any column in [columns] in ascending or descending order. If [sortColumnIndex] is non-null, then the table will be sorted by the values in the specified column. The boolean [sortAscending] flag controls the sort order https://rrtutors.com/tutorials/Flutter-Data-Table-How-to-Sort-Data-in-the-Data-Table