How to get a (root/parent/empty?) element?

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Wu Yu-Wei
Wu Yu-Wei 2023-7-12
回答： Sachin Lodhi 2023-11-14
Hi,
my xml data have two ParentElements <Devices> and <Params>, both have many elements <param... >.
paralist = getElementsByTagName(xDoc,'param');
I get <param ...> element from both parentelements.
It there any method to get these two ParentElements first before getting their childrelement?
  2 个评论
Wu Yu-Wei
Wu Yu-Wei 2023-7-13
I read the document in w3c.org about the structure,and tried example from here:
https://www.mathworks.com/help/matlab/import_export/importing-xml-documents.html
paralist = getElementsByTagName(xDoc,'listitem');
But I still don't understand how to get the ParentElement <list>.
Wu Yu-Wei
Wu Yu-Wei 2023-7-17
I used a function by Joe to parse the xml into a structure, and dig out my interest
https://github.com/joe-of-all-trades/xml2struct
so I can handle my data for now.

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回答（1 个）

Sachin Lodhi
Sachin Lodhi 2023-11-14
Hi Wu Yu-Wei,
Based on my understanding, it appears that you are interested in obtaining the root or parent element of your XML data file. For this, MATLAB provides an option to import an XML file into a Document Object Model (DOM) document node using a ‘matlab.io.xml.dom.Parser’ object or the ‘xmlread’ function.
After creating the DOM node, you can use the ‘getElementsByTagName’ method to get the parent elements, and use the ‘getChildNodes’ method to access their child elements.
Please refer to the following document for additional information and examples related to these methods - https://www.mathworks.com/help/matlab/ref/matlab.io.xml.dom.nodelist-class.html#:~:text=Public%20Methods-,Examples,-collapse%20all
I hope this helps.
Best Regards,
Sachin

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