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DataSet.WriteXmlSchema Method (XmlWriter)

Writes the DataSet structure as an XML schema to an XmlWriter object.

Namespace: System.Data
Assembly: System.Data (in system.data.dll)

'Declaration
Public Sub WriteXmlSchema ( _
	writer As XmlWriter _
)
'Usage
Dim instance As DataSet
Dim writer As XmlWriter

instance.WriteXmlSchema(writer)
public void WriteXmlSchema (
	XmlWriter writer
)
public function WriteXmlSchema (
	writer : XmlWriter
)
Not applicable.

Parameters

writer

The XmlWriter with which to write.

Use the WriteXmlSchema method to write the schema for a DataSet to an XML document. 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.

To write the data to an XML document, use the WriteXml method.

One class that inherits from the System.Xml.XmlWriter class is the System.Xml.XmlTextWriter class.

The following example creates a new System.IO.FileStream object with the specified path. The FileStream object is used to create an System.Xml.XMLTextWriter object. The WriteXmlSchema method is then invoked with the XmlTextWriter object to write the schema to the disk.

Private Sub WriteSchemaWithXmlTextWriter(thisDataSet As DataSet)
    ' Set the file path and name. Modify this for your purposes.
    Dim filename As String = "SchemaDoc.xml"

    ' Create a FileStream object with the file path and name.
    Dim stream As New System.IO.FileStream _
       (filename, System.IO.FileMode.Create)

    ' Create a new XmlTextWriter object with the FileStream.
    Dim writer As New System.Xml.XmlTextWriter _
       (stream, System.Text.Encoding.Unicode)

    ' Write the schema into the DataSet and close the reader.
    thisDataSet.WriteXmlSchema(writer)
    writer.Close()
End Sub

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

XNA Framework

Supported in: 1.0
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