通過使用LINQ

Question

多個XML標籤搜索我有一個這樣的XML：

<?xml version="1.0" encoding="UTF-8" standalone="yes"?> 
<ViewCardResponse xmlns="http://schemas.com" schemaVersion="1.0"> 
    <CardActivations> 
     <CardNumber>074125</CardNumber> 
     <EffectiveFrom>2014-01-08</EffectiveFrom> 
     <Status>InActive</Status> 
     </CardActivations> 
     <CardActivations> 
     <CardNumber>074126</CardNumber> 
     <EffectiveFrom>2014-01-08</EffectiveFrom> 
     <Status>InActive</Status> 
     </CardActivations> 
     <CardActivations> 
     <CardNumber>074127</CardNumber> 
     <EffectiveFrom>2014-01-08</EffectiveFrom> 
     <Status>Active</Status> 
     </CardActivations> 
</ViewCardResponse > 

而且我有3個領域。我想知道Cardnumber的價值，從那個狀態爲'Active'的cardactivation生效，狀態。有人可以請建議一個LINQ查詢嗎？

Answer 1

XDocument doc=XDocument.Load(path); 
var activeCards=doc.Elements() 
        .Where(x=>x.Element("Status").Value=="Active") 
        .Select(x=> 
          new 
          { 
           CardNumber=x.Element("CardNumber").Value, 
           EffectiveFrom=x.Element("EffectiveFrom").Value 
          });