给字符串变量赋值

Question

I'm trying to parse an xml file for the value of an element and then assign that single value to a variable. I understand that I can do this:

XDocument xdoc = XDocument.Load("filename");
string someName;  
var name = from n in xdoc.Descendants("name")
           select (string)n;

foreach(var n in name )
{
   someName = n;
}

My question is how can I do the same thing, but without a foreach loop?

Answer 1

string someName = (string)xdoc.Descendants("name").First();

Answer 2

如果您的xml文件中只有一个name元素，则可以使用@abatishchev解决方案（如果元素可能丢失，则可以使用FirstOrDefault而不是First ），或者可以使用XPath查询：

string someName = (string)xdoc.XPathSelectElement("//name");

Answer 3

如果您知道name只有一个元素，则可以这样进行：

someName = name.Single();