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DataSet.WriteXml Method (Stream)

.NET Framework 1.1

Writes the current data for the DataSet using the specified System.IO.Stream.

[Visual Basic]
Overloads Public Sub WriteXml( _
   ByVal stream As Stream _
)
[C#]
public void WriteXml(
 Stream stream
);
[C++]
public: void WriteXml(
 Stream* stream
);
[JScript]
public function WriteXml(
   stream : Stream
);

Parameters

stream
A Stream object used to write to a file.

Remarks

The WriteXml method provides a way to write either data only, or both data and schema from a DataSet into an XML document, whereas the WriteXmlSchema method writes only the schema. To write both data and schema, use one of the overloads that includes the WriteXmlMode parameter, and set its value to WriteSchema.

Note that the same is true for the ReadXml and ReadXmlSchema methods, respectively. To read XML data, or both schema and data into the DataSet, use the ReadXml method. To read just the schema, use the ReadXmlSchema method.

Example

[Visual Basic, C#, C++] The following example creates a System.IO.FileStream object. The objects is then with the WriteXml method to write an XML document.

[Visual Basic] 
Private Sub WriteXmlToFile(thisDataSet As DataSet)
    If thisDataSet Is Nothing Then
        Return
    End If ' Create a file name to write to.
    Dim filename As String = "myXmlDoc.xml"
    ' Create the FileStream to write with.
    Dim myFileStream As New System.IO.FileStream _
       (filename, System.IO.FileMode.Create)
    ' Write to the file with the WriteXml method.
    thisDataSet.WriteXml(myFileStream)
End Sub

[C#] 
private void WriteXmlToFile(DataSet thisDataSet) {
   if (thisDataSet == null) { return; }
   // Create a file name to write to.
   string filename = "myXmlDoc.xml";
   // Create the FileStream to write with.
   System.IO.FileStream myFileStream = new System.IO.FileStream
      (filename, System.IO.FileMode.Create);
   // Write to the file with the WriteXml method.
   thisDataSet.WriteXml(myFileStream);   
}

[C++] 
private:
 void WriteXmlToFile(DataSet* thisDataSet) {
    if (thisDataSet == 0) { return; }
    // Create a file name to write to.
    String* filename = S"myXmlDoc.xml";
    // Create the FileStream to write with.
    System::IO::FileStream* myFileStream = new System::IO::FileStream
       (filename, System::IO::FileMode::Create);
    // Write to the file with the WriteXml method.
    thisDataSet->WriteXml(myFileStream);   
 }

[JScript] No example is available for JScript. To view a Visual Basic, C#, or C++ example, click the Language Filter button Language Filter in the upper-left corner of the page.

Requirements

Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

See Also

DataSet Class | DataSet Members | System.Data Namespace | DataSet.WriteXml Overload List | ReadXml | ReadXmlSchema | WriteXml | WriteXmlSchema

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