linq - List.OrderBy returns a collection of empty strings -

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i have collection string date values of empty strings ("").

when use orderby clause, following statement

thelist = thelist.orderby(function(x) x.age).tolist()

returns empty string collection.

however, if use orderbydescending operator, result correctly ordered descending data values.

sample date values "2014-10-31 00:00:00.000", "2014-09-30 00:00:00.000", "2014-11-30 00:00:00.000", "", "2014-08-31 00:00:00.000".

what problem please?

thank you,

piyush varma

my first instinct if x.billedthru ever shorter 10 characters, see behavior. return rows if try this:

dim returncollection list(of fundedaccountsdetail) = new list(of fundedaccountsdetail)  select case sortby  case "billedthru"    if ascending = "asc"       returncollection = reportcollection.orderby(function(x) x.billedthru).tolist()    elseif ascending = "desc"       returncollection = reportcollection.orderbydescending(function(x) x.billedthru).tolist()     end if case else       returncollection = reportcollection end select

if does, problem substring. if not, admit perplexing. i'd try removing order first branch of if , see if returns rows. work way until branch of if works , rebuild step step until start having problem.


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