檢查類型爲IEnumerable <XAtrribute>的列表中的值是否存在於同一類型的另一個列表中+ LINQ to XML

Question

如何檢查Xrclist中是否存在XTclist的值。

XR：

<result> 
<claims type="Subject"> 
      <scope_of_claim>Full scope</scope_of_claim> 
      <claim_date>02/28/2009</claim_date> 
      <claim_age months="1" years="2" /> 
</claims> 
<claims type="Vehicle"> 
      <scope_of_claim>Full scope</scope_of_claim> 
      <claim_date>12/8/2010</claim_date> 
      <claim_age months="1" years="2" /> 
</claims> 

XT：

<result> 
    <claims type="Vehicle"> 
      <scope_of_claim>Full scope</scope_of_claim> 
      <claim_date>24/1/2011</claim_date> 
      <claim_age months="2" years="0" /> 
    </claims> 
</result> 

代碼：

var XRclist = XR.Descendants("claims").Attributes("type"); 
    var xTclist = XT.Descendants("claims").Attributes("type"); 

     foreach (var c in xTclist) 
     { 
      if (XRclist.Contains(c.value)) // This line need to be corrected 
      { 
       Do some thing. 
      } 
      else 
      { 
       Do something else. 
      } 
     } 

Answer 1

你可以使用擴展方法Any：

，而不是if (XRclist.Contains(c.value))

使用if (XRclist.Any(x => x.Value.Equals(c.Value))