DataSet.WriteXml Method (XmlWriter, XmlWriteMode)


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Writes the current data, and optionally the schema, for the DataSet using the specified XmlWriter and XmlWriteMode. To write the schema, set the value for the mode parameter to WriteSchema.

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

member WriteXml : 
        writer:XmlWriter *
        mode:XmlWriteMode -> unit


Type: System.Xml.XmlWriter

The XmlWriter with which to write.

Type: System.Data.XmlWriteMode

One of the XmlWriteMode values.

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, set the mode parameter 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.


An InvalidOperationException will be thrown if a column type in the DataRow being read from or written to implements IDynamicMetaObjectProvider and does not implement IXmlSerializable.

The following example creates a System.IO.FileStream object that is used to create a new System.Xml.XmlTextWriter. The XmlTextWriter object is used with the WriteXml method to write an XML document.

No code example is currently available or this language may not be supported.

.NET Framework
Available since 1.1
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