Question

I’m trying to merge two XML documents. The first one is a kind of template with default values, and the second one has the same structure with missing fields.
I would like to load both files and fill missing fields of the second XML file with default values given in the first file.
For example :

DefaultConfig.xml :

<CollectionItem>
   <Item>
      <var1>10</var1>
      <var2>20</var2>
   </Item>
</CollectionItem>

Config1.xml :

<CollectionItem>
   <Item>
      <var1>5</var1>
   </Item>
   <Item>
      <var2>5</var2>
   </Item>
</CollectionItem>

As a result, I’d like the output file to look like :

<CollectionItem>
   <Item>
      <var1>5</var1>
      <var2>20</var2>
   </Item>
   <Item>
      <var1>10</var>
      <var2>5</var2>
   </Item>
</CollectionItem>

Furthermore, I’d like to be generic, if I add a field in the node Item, I don’t want to code it but rather read it in the default XML file.
Thanks for your help !

Answer 1

read the XML files using the XElemnt class.
you get the child elements using the method Elements().
each element has a property “name”.
if the non-default element doesn’t have a field that the default element has – add it with the Add function.

at the end don’t forget to call the function “save”.