Trying to sort list based on string value

Question

gridMessages.OrderBy(x => Convert.ToInt32(x.age));

So age, is a string that could be something like "0", or "14", you get the picture. I wanted to sort the list by the age, so I convert it to an int in the OrderBy. The code compiles and runs without error but the list is not sorted.

What am I doing wrong?

Kieren Johnstone · Accepted Answer · 2011-04-07 14:52:17Z

6

You're not using the results. OrderBy returns a sorted list!

gridMessages = gridMessages.OrderBy(x => Convert.ToInt32(x.age));

answered Apr 7, 2011 at 14:52

Kieren Johnstone

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1 Comment

Kieren Johnstone Over a year ago

Not at all, a very common gotcha

BrokenGlass · Accepted Answer · 2011-04-07 14:54:40Z

0

If gridMessages is a List<T> you can also sort it in place instead of creating a new list:

gridMessages.Sort( (a,b) => a.Age.CompareTo(b.Age));

answered Apr 7, 2011 at 14:54

BrokenGlass

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