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From: sloan on 22 Feb 2010 11:27
Ok, my xml inability shows itself once again.


Thanks for any help.




Below I have some xml and some code for trying to get the "Publish_Date"
element value.


I've tried 4 different ways to get it.
(If you uncomment the lines in the code seen here, you can see the ways I've
tried to get the value)
theOneImGonnaTry = myNameSpaceNameLocalName1 + ":";
theOneImGonnaTry = myNameSpaceNameLocalName2 + ":";
theOneImGonnaTry = myNameSpaceNameLocalName3 + ":";
theOneImGonnaTry = string.Empty;

(The code seen above makes more sense when you look at the code below).


Below is the xml sample (and its source url in the code) and the C# code I'm
trying to use.



---------START XML
<?xml version="1.0" standalone="yes"?>

<sdnList xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://tempuri.org/sdnList.xsd">

<publshInformation>

<Publish_Date>02/10/2010</Publish_Date>

<Record_Count>4301</Record_Count>

</publshInformation>

</sdnList>



---------END XML



C# code below





string sdnUrl =
"http://www.ustreas.gov/offices/enforcement/ofac/sdn/sdn.xml?fakeParameter="
+ DateTime.Now.ToLongTimeString();

XPathDocument doc = new XPathDocument(sdnUrl);

XPathNavigator nav = doc.CreateNavigator();





string myNameSpaceNameLocalName1 = "xsi";

string myNameSpaceNameLocalName2 = "myxsi";

string myNameSpaceNameLocalName3 = "anythingHere";

string theOneImGonnaTry = string.Empty;

theOneImGonnaTry = myNameSpaceNameLocalName1 + ":";

//theOneImGonnaTry = myNameSpaceNameLocalName2 + ":";

//theOneImGonnaTry = myNameSpaceNameLocalName3 + ":";

//theOneImGonnaTry = string.Empty;

string myXPath = "//" + theOneImGonnaTry +
"sdnList/publshInformation/Publish_Date";

Console.WriteLine("Let's try : " + myXPath);

XPathExpression xpExpress = nav.Compile(myXPath);

XmlNamespaceManager context = new XmlNamespaceManager(nav.NameTable);

context.AddNamespace(myNameSpaceNameLocalName1,
"http://www.w3.org/2001/XMLSchema-instance");

context.AddNamespace(myNameSpaceNameLocalName2,
"http://www.w3.org/2001/XMLSchema-instance");

context.AddNamespace(myNameSpaceNameLocalName3,
"http://tempuri.org/sdnList.xsd");

xpExpress.SetContext(context);

XPathNodeIterator nit = nav.Select(xpExpress);

while (nit.MoveNext())

{

XPathNavigator nav1 = nit.Current.Clone();

Console.WriteLine("Publish_Date: " + nav1.Value);

}












From: sloan on 22 Feb 2010 12:00

Thanks (again!) Martin.



"Martin Honnen" <mahotrash(a)yahoo.de> wrote in message
news:urt0t59sKHA.4796(a)TK2MSFTNGP02.phx.gbl...
> sloan wrote:
>
>> <?xml version="1.0" standalone="yes"?>
>>
>> <sdnList xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>> xmlns="http://tempuri.org/sdnList.xsd">
>>
>> <publshInformation>
>>
>> <Publish_Date>02/10/2010</Publish_Date>
>>
>> <Record_Count>4301</Record_Count>
>>
>> </publshInformation>
>>
>> </sdnList>
>
> The following should suffice:
>
> XPathDocument doc = new XPathDocument("input.xml");
> XPathNavigator nav = doc.CreateNavigator();
> XmlNamespaceManager mgr = new
> XmlNamespaceManager(nav.NameTable);
> mgr.AddNamespace("df",
> nav.SelectSingleNode("*").NamespaceURI);
> Console.WriteLine(nav.SelectSingleNode("//df:Publish_Date",
> mgr).Value);
>
>
> Or use LINQ to XML:
>
> XElement root = XElement.Load(@"..\..\XMLFile1.xml");
> XNamespace df = root.Name.Namespace;
> Console.WriteLine(root.Descendants(df +
> "Publish_Date").First().Value);
>
> --
>
> Martin Honnen --- MVP XML
> http://msmvps.com/blogs/martin_honnen/


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