Explicitly give the namespace a name when you add it to the SelectionNamespaces
:
doc.setProperty("SelectionNamespaces",
"xmlns:peanut='http://schemas.microsoft.com/developer/msbuild/2003'");
and then query using that namespace:
IDOMNode node = doc.selectSingleNode("//peanut:PropertyGroup/@Condition");
You can give that namespace any abbreviation name you want (peanut
in this case). And then use the abbreviation as prefix (peanut:PropertyGroup
in this case).
Earlier suggestions
I would try moving to Xml.Linq
.
Here is a sample (with a namespace).
try
{
XDocument xDoc1 = XDocument.Parse("<?xml version=\"1.0\" ?><Project ToolsVersion=\"4.0\" xmlns=\"http://schemas.microsoft.com/developer/msbuild/2003\"><PropertyGroup Condition=\"'$(key)'=='1111'\"><Key>Value</Key></PropertyGroup></Project>");
XNamespace ns1 = XNamespace.Get("http://schemas.microsoft.com/developer/msbuild/2003");
var list1 = from list in xDoc1.Descendants(ns1 + "Project")
from item in list.Elements(ns1 + "PropertyGroup")
/* where item.Element(ns + "HintPath") != null */
where item.Attribute("Condition") != null
select new
{
MyCondition = item.Attribute("Condition") == null ? "Not Here!" : item.Attribute("Condition").Value,
MyFake = item.Attribute("DoesNotExistTest") == null ? "Not Here Sucker!" : item.Attribute("DoesNotExistTest").Value
};
foreach (var v in list1)
{
Console.WriteLine(v.ToString());
}
XDocument xDoc2 = XDocument.Parse("<?xml version=\"1.0\" encoding=\"UTF-16\" standalone=\"yes\"?> <ShowPlanXML Version=\"1.1\" Build=\"10.50.1600.1\" xmlns=\"http://schemas.microsoft.com/sqlserver/2004/07/showplan\"> <BatchSequence> <Batch>Something I Threw In Here</Batch> </BatchSequence> </ShowPlanXML> ");
XNamespace ns2 = XNamespace.Get("http://schemas.microsoft.com/sqlserver/2004/07/showplan");
var list2 = from list in xDoc2.Descendants(ns2 + "ShowPlanXML")
from item in list.Elements(ns2 + "BatchSequence")
/* where item.Attribute("Condition") != null */
where item.Element(ns2 + "Batch") != null
select new
{
BatchValue = (item.Element(ns2 + "Batch") == null) ? string.Empty : item.Element(ns2 + "Batch").Value
};
foreach (var v in list2)
{
Console.WriteLine(v.ToString());
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}