Linq to Xml filter XML based on another Xml

Question

 

Hi,

 

I would like to keep few the node's in my xml based on another XML.

 

string rootXml = @"<Results>

<Result>

<Name>John</Name>

<Phone>110</Phone>

<Location>USA</Location>

</Result>

<Result>

<Name>Mary</Name>

<Phone>120</Phone>

<Location>UK</Location>

</Result>

</Results>";

 

// Nodes to keep

string filterXML = @"<NodesToKeep>

<Node value="Name">

<Node value="Phone">

</NodesToKeep>";

 

Now using XElement and Linq to XML I want to remove all Location nodes from my rootXML. Both rootXML and filterXML will vary by request.

 

What I have been trying to do is:

 

var retVars = from c in rootXml.Elements(elementName)

orderby {Dynamic list of columns}

select ({Dynamic List of all filter columns from filterXML);

 

and at last I want to serialze the retVars.

 

Please let me know how can I build the list of columns to be selected during runtime.

 

Thanks

Punu