ciao,

ho creato una relazione master-details e legato le tabelle a due DataGrid dgMaster e dgDetails.

codice:
Class myPage

  Private masterBindingSource As New BindingSource()
  Private detailsBindingSource As New BindingSource()

  Private Sub myPage_Loaded(ByVal sender As Object, ByVal e As System.Windows.RoutedEventArgs) Handles Me.Loaded
    'Create a DataSet
	Dim myDataSet As DataSet = New DataSet()
    myDataSet.Locale = System.Globalization.CultureInfo.InvariantCulture
    myDataSet.Tables.Add("TAB_MASTER")
    myDataSet.Tables.Add("TAB_DETAILS")

    'Add data from MASTER table to the DataSet
    Dim masterDataAdapter As New OdbcDataAdapter("SELECT * FROM TAB_MASTER", ODBCConnection)
    masterDataAdapter.Fill(myDataSet, "TAB_MASTER")

    'Add data from DETAILS table to the DataSet
    Dim detailsDataAdapter As New OdbcDataAdapter("SELECT * FROM TAB_DETAILS", ODBCConnection)
    detailsDataAdapter.Fill(myDataSet, "TAB_DETAILS")

    'Create a relation
    Dim relation As New DataRelation("Master_Detail", _
                     myDataSet.Tables("TAB_MASTER").Columns("CODICE"), _
                     myDataSet.Tables("TAB_DETAILS").Columns("COD_MASTER"))

    myDataSet.Relations.Add(relation)

    'Bind the master data connector to the MASTER table

    masterBindingSource.DataSource = myDataSet
    masterBindingSource.DataMember = "TAB_MASTER"

    'Bind the details data connector to the Veicoli table
    'using the DataRelation name to filter the information in the
    'details table based on the current row in the master table.
    dgDetails.IsSynchronizedWithCurrentItem = True
    detailsBindingSource.DataSource = masterBindingSource
    detailsBindingSource.DataMember = "Master_Detail"

    dgMaster.ItemsSource = masterBindingSource
    dgDetails.ItemsSource = detailsBindingSource
  End Sub
End Class
Lanciando l'applicazione, le tabelle vengono popolate; ma scorrendo la griglia dgMaster, la griglia dgDetails non si aggiorna. Lo stesso codice eseguito su un'applicazione Windows Form funziona correttamente. Cosa devo fare per ricaricare correttamente la griglia dgDetails?