linq to xml - XDocument replace all node value with lower case -

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i need make values within xdocument lower case. what's best way of doing this?

to clarify, want change text values, without specifying names of nodes.

you like:

doc.document    .descendantnodes()    .oftype<xtext>()    .tolist().foreach(x => x.value = x.value.tolower());

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