hierarchial xml from DataSets

[GaryDean]

I'm writing both client and WebService for data exchange. Rather than using
XMLTextWriters and writing everything in code I'm intending to use multiple
datatables in a dataset and serialize it out to xml because it's much less
code and much less work. I'm able to easily do this but I have one issue...

it's easy to do this:
<datasetname>
<table1stuff>

<table1stuff>

<table2stuff>

<table2stuff>

<table3stuff>

<table3stuff>
<datasetname>
but how can I have hierarchial groupings like putting table2stuff and
table3stuff under a grouping called <lineitems>. that would be like having
a datatable within a datatable and I don't believe that's possible.

 

[Steven Cheng[MSFT]]

Hi Gary,

As for DataSet/DataTables, they have fixed and definite xml serialization
rule, each datatable will be nested with in the DataSet element in
parallel. Only if there is definite master/detail like relation will make
one datatable row include other datatable records.

for your scenario, what does the "lineitems" wrapper group come from, is it
refered to a relation in backend database or just a custom role you
defined? If you want flexible customzation of the serializaed XML format, I
think you need to define custom class and control their xml serialization
through some XML serialization attribute or manually do the xml
serialzation through IXmlSerialization interface.

Please feel free to let me know your actual requirement and scenario.

Sincerely,

Steven Cheng

Microsoft MSDN Online Support Lead



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