为什么不能在此lambda表达式中使用OrderBy（）？

Question

How do I order the following? The orderBy doesnt recognise the x.Name.

var xRefsNames = db.CrossRefs.Where(x => pgNos.Contains(x.PG))
.Select(x => x.Name)
.Distinct()
.OrderBy(x=>x.Name);

Answer 1

Your select is projecting a different object, probably a string based on the name. You want to just order by x .

var xRefsNames = db.CrossRefs.Where(x => pgNos.Contains(x.PG))
.Select(x => x.Name)
.Distinct()
.OrderBy(x=>x);