DataSet::ReadXmlSchema Method (TextReader)
Reads the XML schema from the specified TextReader into the DataSet.
Assembly: System.Data (in System.Data.dll)
Parameters
- reader
- Type: System.IO::TextReader
The TextReader from which to read.
Use the ReadXmlSchema method to create the schema for a DataSet. The schema includes table, relation, and constraint definitions. To write a schema to an XML document, use the WriteXmlSchema method.
The XML schema is written using the XSD standard.
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Data corruption can occur if the msdata:DataType and the xs:type types do not match. No exception will be thrown. |
The ReadXmlSchema method is generally invoked before invoking the ReadXml method which is used to fill the DataSet.
Classes that inherit from the TextReader class include the StreamReader and StringReader classes.
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If the schema for your DataSet contains elements of the same name, but different type, in the same namespace, an exception is be thrown when you attempt to read the schema into the DataSet with ReadXmlSchema. This exception does not occur if you are using .NET Framework version 1.0. |
The following example creates a StreamReader object to read a schema with, and invokes the ReadXmlSchema method with the object.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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