XML Namespaces and SelectNodes

I have an XML file with the line:

 <REQUEST_GROUP MISMOVersionID="2.3.1" _ID="XSLT120" xmlns="http://www.MISMO.org/schema/Envelope_2_3_1">

When I try to do a SelectSingleNode method to that node, i get a null refrence

When I modify that line to

 <REQUEST_GROUP MISMOVersionID="2.3.1" _ID="XSLT120">

it selects just fine.

What does SelectSingleNode have to do with namespacing?
SiberwulfAsked:
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Javert93Connect With a Mentor Commented:
XML namespaces allow you to logically seperate nodes with the same name into different "areas" or "namespaces." When you don't specify a namespace, the node is placed in a global namespace, which was where SelectSingleNode looks if you don't provide an XmlNamespaceManager for the second parameter. Since you were defining the node to be in the http://www.MISMO.org/schema/Envelope_2_3_1 namespace (which removed it from the default namespace).
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SiberwulfAuthor Commented:
Ok, I see how that works.

Now, it is having me look in the namespace each time i try to acess a node inside.  

I end up wiht something like this:

"//mismo:REQUEST_GROUP/mismo:REQUEST/mismo:REQUEST_DATA"


Is there any way to not have it need those extra namespace tags?
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Javert93Commented:
Not unless you don't define a namespace for the nodes. Otherwise, the namespace is required.
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