DataRow.GetParentRows Method (DataRelation)

In a DataSet, the collection of all parent DataRelation objects for the data set is returned by the GetParentRows method.

The DataTable also contains a collection of DataRelation objects, returned by the ParentRelations property.

The following example uses the GetParentRows to return the child DataRow objects for every child DataRelation in a DataTable. The value of each column in the row is then printed.

Private Sub GetChildRowsFromDataRelation(table As DataTable)
    Dim relation As DataRelation
    Dim arrRows() As DataRow
    Dim row As DataRow
    Dim i As Integer 
    Dim column As DataColumn 

    For Each relation In table.ParentRelations
      For Each row In table.Rows
          arrRows = row.GetParentRows(relation)
          ' Print values of rows. 
          For i = 0 To arrRows.GetUpperBound(0)
             For Each column in table.Columns
                Console.WriteLine(arrRows(i)(column.ColumnName))
             Next column
          Next i
       Next row
    Next relation
 End Sub

.NET Framework

.NET Framework Client Profile

Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

Reference