Sort by due date: keep ticket without due date at bottom
Consider some tickets with this due date values:
ID 1 - Due Date 30/10/2018
ID 2 - Due Date 15/10/2018
ID 3 - no due date
ID 4 - Due Date 05/11/2018
ID 5 - no due date
Actually if I order ticket grid by due date, I can have this sort DESCENDING:
ID 4 - Due Date 05/11/2018
ID 1 - Due Date 30/10/2018
ID 2 - Due Date 15/10/2018
ID 3 - no due date
ID 5 - no due date
Or this sort ASCENDING:
ID 3 - no due date
ID 5 - no due date
ID 2 - Due Date 15/10/2018
ID 1 - Due Date 30/10/2018
ID 4 - Due Date 05/11/2018
But it would be useful to have at first place tickets with minor due date (more urgent), and at last place tickets with no due date (less urgent):
ID 2 - Due Date 15/10/2018
ID 1 - Due Date 30/10/2018
ID 4 - Due Date 05/11/2018
ID 3 - no due date
ID 5 - no due date
Maybe when sorting the "no due date" should be considered as DateTime.MaxValue or similar?