InfoPath Dev

hello all!!

 I have a repeating section such as:

 SPECIES_ID
 count
 length
 weight
 notes
I need to only access SPECIES_ID value for each repeating section and store it into an array. I am working in C#, and I need to do this before saving the infopath form.

I have tried using: 
 
XmlDocument doc = new XmlDocument();            
               doc.Load(NFile);   // NFile contains the file Name
               XmlElement root = doc.DocumentElement;
               XmlNodeList TestNodeList;  
               TestNodeList = root.SelectNodes("/my:myFFIM_base_table/my:Species_Records/my:SpeciesGroup/my:SPECIES_ID", NamespaceManager);
but to no success. Can anyone point me into the right direction as to how to do this? Thank You!!

 Does following that code with this not work?:

string[] ids = new string[TestNodeList.Count];
int i = 0;
foreach(XPathNavigator speciesId in TestNodeList)
{
     ids[i] = speciesId.Value;
     i++;
}

well, the thing is, the application breaks when it hits

doc.Load(NFile);   // NFile contains the file Name

I think it is beacause NFile only contains the file name not a path, as the xml file is not saved yet. so I don't know if there is any other way to acces the SPECIES_ID field, or maybe another way to point to this 'unsaved' xml file...any help is appreciated

Well, I'm not sure how you expect to access data from a file that doesn't exist, which is what your code is apparently trying to do.  Could you give a bit more detail about what you're trying to do?

I apologize for not being very clear. Basically,  after the user fills out this form, and before they save it, they click on "check" button, which trigers an event and goes through some of the fields for make comparisons. and that is when I need to access that SPECIES_ID field from the repeating sections and have not been able to. Thanks again for any help.