c# - Get a collection of an attribute by linq -


i have xml file.

<book bnumber="1" bname="book"> <chp cnumber="1"> <ver vnumber="1">this sentence 1.</ver> <ver vnumber="2">this sentence 2.</ver> <ver vnumber="3">this sentence 3.</ver> </chp> <chp cnumber="2"> <ver vnumber="1">hello world 1.</ver> <ver vnumber="2">hello world 2.</ver> <ver vnumber="3">hello world 3.</ver> <ver vnumber="4">hello world 4.</ver> </chp> <!--many: thousand records--> </book>

i want ge attribure "cnumber". result:

chapter={"chp 1";"chp 2",....};

my uncomplected code:

xdocument xdoc = xdocument.load("book.xml"); var temp = xdoc.descendants("chp").where(x => x.attribute("cnumber").value != "0");

thanks.

it looks use:

var chapters = xdoc.descendants("chp") .select(x => "chp " + x.attribute("cnumber").value) .tolist();

it's not clear why need where clause @ - none of sample data you've given has cnumber of 0, or absent cnumber. if need take account, should explicitly.

(do need "chp " part start with, btw? why not have list<int>?)


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