StrokeCollection.GetPropertyData(Guid) Método

public:
 System::Object ^ GetPropertyData(Guid propertyDataId);

public object GetPropertyData (Guid propertyDataId);

member this.GetPropertyData : Guid -> obj

Public Function GetPropertyData (propertyDataId As Guid) As Object

Parâmetros

Retornos

O valor da propriedade personalizada associada ao Guid especificado.

Exceções

Exemplos

O exemplo a seguir demonstra como adicionar e obter dados de propriedade personalizados. O AddTimeStamp_Click método usa o AddPropertyData método para adicionar a hora atual ao StrokeCollection. O GetTimeStap_Click método usa o GetPropertyData método para recuperar o carimbo de data/hora do StrokeCollection. Este exemplo pressupõe que haja um InkCanvas chamado inkCanvas1.

Guid timestamp = new Guid("12345678-9012-3456-7890-123456789012");

// Add a timestamp to the StrokeCollection.
private void AddTimestamp_Click(object sender, RoutedEventArgs e)
{

    inkCanvas1.Strokes.AddPropertyData(timestamp, DateTime.Now);
}

// Get the timestamp of the StrokeCollection.
private void GetTimestamp_Click(object sender, RoutedEventArgs e)
{

    if (inkCanvas1.Strokes.ContainsPropertyData(timestamp))
    {
        object date = inkCanvas1.Strokes.GetPropertyData(timestamp);

        if (date is DateTime)
        {
            MessageBox.Show("This StrokeCollection's timestamp is " +
                ((DateTime)date).ToString());
        }
    }
    else
    {
        MessageBox.Show(
            "The StrokeCollection does not have a timestamp.");
    }
}

Private timestamp As New Guid("12345678-9012-3456-7890-123456789012")

' Add a timestamp to the StrokeCollection.
Private Sub AddTimestamp_Click(ByVal sender As Object, ByVal e As RoutedEventArgs)

    inkCanvas1.Strokes.AddPropertyData(timestamp, DateTime.Now)

End Sub

' Get the timestamp of the StrokeCollection.
Private Sub GetTimestamp_Click(ByVal sender As Object, ByVal e As RoutedEventArgs)

    If inkCanvas1.Strokes.ContainsPropertyData(timestamp) Then

        Dim savedDate As Object = inkCanvas1.Strokes.GetPropertyData(timestamp)

        If TypeOf savedDate Is DateTime Then
            MessageBox.Show("This StrokeCollection's timestamp is " & _
                CType(savedDate, DateTime).ToString())
        End If
    Else
        MessageBox.Show("The StrokeCollection does not have a timestamp.")
    End If

End Sub

Comentários

Os AddPropertyData métodos e GetPropertyData permitem que você adicione propriedades personalizadas a um StrokeCollection. Em seguida, você pode incluir informações extras com um StrokeCollection.

Aplica-se a