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If i have a list of numbers:
1,2,3,4,5,6,7,8 and I want to order by a specific number and then show the rest. For example if i pick '3' the list should be:
3,1,2,4,5,6,7,8 Looking for linq and c#. Thank you
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In LINQ, the OrderBy operator is used to sort the list/ collection values in ascending order. In LINQ, if we use order by the operator by default, it will sort the list of values in ascending order. We don't need to add any ascending condition in the query statement.
The OrderBy() Method, first sort the elements of the sequence or collection in ascending order after that ThenBy() method is used to again sort the result of OrderBy() method in ascending order.
If you want to rearrange or sort the elements of the given sequence or collection in descending order in query syntax, then use descending keyword as shown in below example. And in method syntax, use OrderByDescending () method to sort the elements of the given sequence or collection.
LINQ includes five sorting operators: OrderBy, OrderByDescending, ThenBy, ThenByDescending and Reverse. LINQ query syntax does not support OrderByDescending, ThenBy, ThenByDescending and Reverse. It only supports 'Order By' clause with 'ascending' and 'descending' sorting direction.
You can use a comparison in OrderBy or ThenBy to perform a conditional sorting.
list.OrderByDescending(i => i == 3).ThenBy(i => i); I use OrderByDescending because i want matching results first(true is "higher" than false).
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