Insert element into XML with compliance to a schema

[Leura]

I have a new XML document parsed in as DOM. Then I have an element to insert
according to the order spesified in a schema.

For example:

I have a XML:

<book>
<chapter1>Introduction</chaper1>
<chapter4>Chapter4</chapter4>
<chapter5>Chapter5</chapter5>
</book>

I need to insert "<book><chapter2>Chapter2></chapter2></book>". Accoding to
schema, the <chapter2> must be after <chapter1> and before <chapter3> that
is missing in this case.

(if I know the element to be insert at a certain position, in this case the
second, it's easy to do. However, generally the position is not known, only
an order determined by the schema.)

How can I generally solve this problem? Is there any way to read in the
schema and perform the insertion according to it?

[PeterLin]

From your example you know the element name you are going to insert and you can find out the element name before or after this element from the sequence number. Then use InsertBefore method to insert the element into the place you want it to be.