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DataSet.GetXmlSchema Method

Returns the XML Schema for the XML representation of the data stored in the DataSet.

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

'Declaration
Public Function GetXmlSchema As String
'Usage
Dim instance As DataSet 
Dim returnValue As String 

returnValue = instance.GetXmlSchema()

Return Value

Type: System.String
String that is the XML Schema for the XML representation of the data stored in the DataSet.

Calling this method is identical to calling WriteXmlSchema, except that only the primary schema is written.

GetXmlSchema returns XML as a string, and therefore requires more overhead than WriteXmlSchema to write XML to a file.

If you build a DataSet using schema inference and serialize it using XML or Web services, the column ordering may change.

The following example creates a DataSet and DataTable, and then displays the schema in XML format.

Private Shared Sub DemonstrateGetXml()
	' Create a DataSet with one table  
    ' containing two columns and 10 rows. 
	Dim dataSet As DataSet = New DataSet("dataSet")
	Dim table As DataTable = dataSet.Tables.Add("Items")
	table.Columns.Add("id", Type.GetType("System.Int32"))
	table.Columns.Add("Item", Type.GetType("System.String"))

	' Add ten rows. 
	Dim row As DataRow
	Dim i As Integer 
	For i = 0 To 9
		row = table.NewRow()
		row("id") = i
		row("Item")= "Item" & i
		table.Rows.Add(row)
	Next 

	' Display the DataSet contents as XML.
	Console.WriteLine( dataSet.GetXml() )
End Sub

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

XNA Framework

Supported in: 3.0, 2.0, 1.0

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