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VB.Net - Save DataTable from a Dataset To XML

Posted on 2004-09-02
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Last Modified: 2012-05-05
I want to save Only the datatable ( RamTable ) to xml

i need both read and write functions please.
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Question by:Vartana
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Expert Comment

by:Bob Learned
ID: 11968012
DataSet.WriteXML(path) and DataSet.ReadXML(path)

Bob
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Author Comment

by:Vartana
ID: 11968027
I DOnt want to save all the datatables in the dataset
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by:Bob Learned
ID: 11968070
How many tables does the dataset have?

Bob
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Expert Comment

by:thenrich
ID: 11968227
Create a new dataset with only the table you want then do what Bob suggested above.

'DataSet.WriteXML(path) and DataSet.ReadXML(path)

Bob'
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Author Comment

by:Vartana
ID: 11968242
more then 1
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Accepted Solution

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DotNetLover_Baan earned 500 total points
ID: 11969208
Hi there... try this..

    Sub WriteTableDataToXML(ByVal DS As DataSet, ByVal TableIndex As Int32, ByVal FileName As String)
        Dim TempDS As New DataSet
        TempDS.Tables.Add(DS.Tables(TableIndex))
        TempDS.WriteXml(FileName)
    End Sub

call it as , WriteTableDataToXML([DataSet Name],[0-based index of the table in dataset],[.xml file name to store in double quotes])

Make similar approach for reading too...
-Baan
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Expert Comment

by:DotNetLover_Baan
ID: 11969231
oops... there was, little problem with the code...
it is fixed now...

    Sub WriteTableDataToXML(ByVal DS1 As DataSet, ByVal TableIndex As Int32, ByVal FileName As String)
        Dim TempDS As New DataSet
        Dim DT As New DataTable
        DT = DS1.Tables(TableIndex).Copy
        TempDS.Tables.Add(DT)
        TempDS.WriteXml(FileName)
    End Sub

-Baan
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Expert Comment

by:DotNetLover_Baan
ID: 11969273
To read...

     Sub ReadTableDataFromXML(ByVal DS1 As DataSet, ByVal TableIndex As Int32, ByVal FileName As String)
        Dim TempDS As New DataSet
        TempDS.ReadXml(FileName)
        Dim DT As New DataTable
        DT = TempDS.Tables(TableIndex).Copy
        DS1.Tables.Add(DT)
    End Sub
call it as... ReadTableDataFromXML([Receiving DataSet Name],[0-based index of the table in XML file],[.xml file name to read from in double quotes])

-Baan
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