Propriedade LinqDataSourceValidationException.InnerExceptions

public IDictionary<string, Exception> InnerExceptions { get; }

Protected Sub LinqDataSource_Updating(ByVal sender As Object, _
        ByVal e As LinqDataSourceUpdateEventArgs)
    If (e.Exception IsNot Nothing) Then
        For Each innerException As KeyValuePair(Of String, Exception) _
                In e.Exception.InnerExceptions
          Label1.Text &= innerException.Key & ": " & _ 
                  innerException.Value.Message & "<br />"
        Next
        e.ExceptionHandled = True
    End If
End Sub

protected void LinqDataSource_Updating(object sender, 
        LinqDataSourceUpdateEventArgs e) 
{
    if (e.Exception != null)
    {
        foreach (KeyValuePair<string, Exception> innerException in 
            e.Exception.InnerExceptions)
        {
            Label1.Text += innerException.Key + ": " + 
                innerException.Message + "<br />";
        }
        e.ExceptionHandled = true;
    }
}