NGWS SDK Documentation  

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DataTable.ParentRelations

Gets the collection of parent relations for this DataTable.

[Visual Basic]
Public ReadOnly Property ParentRelations As RelationsCollection
[C#]
public RelationsCollection ParentRelations {get;}
[C++]
public: __property RelationsCollection* get_ParentRelations();
[JScript]
public function get ParentRelations() : RelationsCollection;

Property Value

A RelationsCollection that contains the parent relations for the table.

Example [Visual Basic]

The following example uses the ParentRelations property to return each parent DataRelation in a DataTable. Each relation is then used as an argument in the GetParentRows method of the DataRow to return an array of rows. The value of each column in the row is then printed.

[Visual Basic]

Private Sub GetChildRowsFromDataRelation(myTable As DataTable)
   Dim dr As DataRelation
   Dim arrRows() As DataRow
   Dim r As DataRow
   Dim i As Integer
   Dim dc As DataColumn 

   For Each dr In myTable.ParentRelations
     For Each r In myTable.Rows
         arrRows = r.GetParentRows(dr)
         ' Print values of rows.
         For i = 0 To UBound(arrRows)
For Each dc in myTable.Columns
   Console.WriteLine(arrRows(i)(dc))
Next dc
         Next i
      Next r
   Next dr
End Sub

See Also

DataTable Class | DataTable Members | System.Data Namespace | ChildRelations