Generate an XML file using the LINQ to XML + file operation in the Metro application

First, Configure permissions, add access permissions, and the suffix.

And then generate nodes using LINQ to XML.

Finally, use the metro file operation to generate a file and write something into it.

// Create XML xdocument tree = new xdocument (); tree. declaration = new xdeclaration ("1.0", "UTF-8", "no"); tree. add (New xelement ("Tree"); xelement node = new xelement ("Node"); // Add node. setattributevalue ("name", "miaomiao"); // Add the node attribute to the node. setattributevalue ("ID", "111"); tree. element ("Tree "). add (node); // Add the node to the tree storagefile file = await knownfolders. documentslibrary. createfileasync ("mm. XML "); irandomaccessstream S = await file. openasync (fileaccessmode. readwrite); datawriter d = new datawriter (S. getoutputstreamat (0); D. writestring (tree. tostring (); await D. storeasync (); await D. flushasync ();

Effect: