xpath starts-with函数出错！大家帮忙

[pengshan]

我的xpath是这样写的：

xpath := '/Documents/Document[starts-with(@Index, ''D'')]';

然后调用：SelectSingleNode(xpath)

运行时出错：Unknow Method
请帮忙啊～～

给出代码片断供参考：
-----------------------------
// Delphi
var
xpath: string;
node: IXMLDOMNode;
begin
xpath := '/Documents/Document[starts-with(@Index, ''D'')]';
node := doc.SelectSingleNode(xpath);
end;

----------------------------
// c#
string xpath = "/Documents/Document[starts-with(@Index, ''D'')]";
XmlNode node = doc.SelectSingleNode(xpath);

[pengshan]

是不是 SelectSingleNode 的xpath中不能用 starts-with啊？

[hejunbin]

string xpath = "/Documents/Document[starts-with(@Index, 'D')]";
O.o

[meiZiNick]

关注 接分

[knowledge_Is_Life]

什么呀

[UltraBejing]

以后需再关注，现在先帮你顶一下