a #GdaDataModel
the parent XML node
an array containing which columns of model will be exported, or null for all columns
an array containing which rows of model will be exported, or null for all rows
set to true to add column ID information
true if no error occurred
Dump the data in a #GdaDataModel into a xmlNodePtr (as used in libxml).
Warning: this function uses a #GdaDataModelIter iterator, and if model does not offer a random access (check using gda.data_model.DataModel.getAccessFlags), the iterator will be the same as normally used to access data in model previously to calling this method, and this iterator will be moved (point to another row).