如何在XxmlElement而不是C＃中的XElement上运行linq

Question

How to get the attributes of XmlElement rather than XElement in C# with linq ?

public string test (XmlElement element)
{
     var enumAttr = from attr in element.Attributes select attr;

     foreach (var data in enumAttr)
      {
          // TO DO
      }
}

It's giving an error,

Could not find an implementation of the query pattern for source type 'System.Xml.XmlAttributeCollection'. 'Select' not found. Consider explicitly specifying the type of the range variable 'attr'

Answer 1

This is because XmlAttributeCollection only implements IEnumerable rather than IEnumerable<T> . You can just change your query expression to:

var enumAttr = from XmlAttribute attr in element.Attributes select attr;

which is equivalent to:

var enumAttr = from attr in element.Attributes.Cast<XmlAttribute>() select attr;

But you're not really doing anything with the LINQ here anyway - you can just use:

foreach (XmlAttribute data in enumAttr.Attributes)