System.Xml.XPath.XPathException

[dinhly]

I got the error message: System.Xml.XPath.XPathException, occurred in system.xml.dll, when I tried the code below:

string lastName = "O'BRIEN";
physNode = "//ENT[@NM/LT='" + lastName.ToUpper() + "']";
XmlNode entNode2 = xmlDoc.SelectSingleNode(physNode);

It complains about the string "//ENT[@NM/LT='O'BRIEN']" having a invalid token. Please help. Thanks in advance.

[dorinbogdan]

Welcome to TheScripts TSDN....

Before passing the physNode string, replace the single quotes with
& # 3 9 ;
(without spaces, I inserted spaces to bypass the html interpreter).

physNode.Replace("'", "& # 3 9 ;")

(don't forget to remove spaces )
Check the HTML codes to see the correct single quote number.

I didn't tested it, but it should work.
Anyway, let us know the result.

Dorin.

[dorinbogdan]

Hi,

Did you solve the problem?

If not, try one of these ways:

physNode = "//ENT[@NM/LT="" + lastName.ToUpper() + ""]";  
//or
physNode = "//ENT[@NM/LT]="" + lastName.ToUpper() + """;  
 

and please let me know the result.

Thanks,
Dorin.