c# - some issue in this linq to xml query, while getting value of certain attribute in an element -


i have app.config file: 

 <?xml version="1.0" encoding="utf-8" ?>  <configuration>   <appsettings>      <add key="domain" value="localhost"/>      <add key="hostname" value="hostpc"/>   </appsettings>  </configuration>

i using linq xml query value of key named "domain". instance, when want value of key named "domain" should give me "localhost" :

var domain = (from appnode in xmlelement.elements("add")                      appnode.attribute("key").value == "domain"                      select appnode.attribute("value"));

but query missing can identify missing or how can made better, doesn't work @ moment.

note: want use linq xml

i used app.config file content is, write small console based application following code:

class program {     static void main(string[] args)     {         // create query          var nodes = appnode in xelement.load("app.config").descendants("appsettings").elements()                     appnode.attribute("key").value == "domain"                     select appnode;          var element = nodes.firstordefault();         string value = element.attribute("value").value;          console.writeline(value);          //pause application          console.readline();     } }

the output is: localhost

hope helps. if not work on machine, please share error details.


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