Update XML File using DataSet

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  12 years ago

  by cra_tek

  Stercus Accidit

  , Canada

  Joined 13 years ago

  Hai all ,

  i am doing a VB.NET Windows Application .. In that i am populating the datagrid with the contents of an XML  File (using DataSet). In the datagrid if i make any changes , it should be updated to the XML File . How can i do this ? I did the coding like this .

  Dim DS as new DataSet 

  Dim dsl As New DataSetDim onm, oc, od As Stream

  FileNam = "OrgXML.xml"

  DS.ReadXml(FileNam, XmlReadMode.DiffGram)

  dsl = DS.GetChanges(DataRowState.Modified)

  dsl.WriteXml(FileNam, XmlWriteMode.DiffGram)

  But this code is not working .. I am getting the error that "Object Reference not set to instance of an object" How can i resolve this ? Any body plz help . its urgent.

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