2004-04-22 Atsushi Enomoto <atsushi@ximian.com>

2004-04-22  Atsushi Enomoto  <atsushi@ximian.com>

	* DataSet.cs : Data should be read when mode is IgnoreSchema (well,
	  the support is incomplete yet).
	* XmlDataLoader.cs :
	  Reverted ReadModeSchema() argument change. XmlReadMode would be
	  useful to handle IgnoreSchema.
	  Don't overwrite DataSetName when mode is not such kind.
	  Set Prefix and Namespace as well as DataSetName.
	  AllowDBNull looks set false by default for element column.
	  Set unique constraint as primary key when infering the table schema.

svn path=/trunk/mcs/; revision=25821