GetElementsByTagName in xml file

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VB

XML

Dear friends,

I have defined xNodes as xmlnodelist, xmldoc as new xmldocument(). I have my xml file starting with parent node Volume
Each xml file will contain several Case ID =""tags.
I need to get the count of all these tags.
Therefore I use xNodes = xmlDoc.GetElementsByTagName("Case") to get the values. But the problem is I find some error in data i.e., Few nodes were printed as TCase instead of Case. Therefore my coding excludes the tags starts with TCase.
EG., In a xml file, totally I have 78 main nodes, 75 nodes starts with Case and 3 Cases starts with TCase. Since i use xNodes = xmlDoc.GetElementsByTagName("Case"), i receive only 75cases.
Is there any possibility to get the id values of both the tags? i.e., total of 78 cases????
Please help me ASAP.