ExtendedProperties.Contains (Método) (Guid)

Artículo
11/26/2008

Actualización: noviembre 2007

Indica si la colección ExtendedProperties contiene un objeto ExtendedProperty específico.

Espacio de nombres: Microsoft.Ink
Ensamblado: Microsoft.Ink (en Microsoft.Ink.dll)

Sintaxis

'Declaración
Public Function Contains ( _
    id As Guid _
) As Boolean
'Uso
Dim instance As ExtendedProperties
Dim id As Guid
Dim returnValue As Boolean

returnValue = instance.Contains(id)

public bool Contains(
    Guid id
)

public:
bool Contains(
    Guid id
)

public boolean Contains(
    Guid id
)

public function Contains(
    id : Guid
) : boolean

Parámetros

id
Tipo: System.Guid
El identificador único global (GUID) del objeto ExtendedProperty que se va a comprobar.

Valor devuelto

Tipo: System.Boolean
Es true si la colección ExtendedProperties contiene un objeto ExtendedProperty específico; de lo contrario, es false.

Ejemplos

En este ejemplo, se examinan todos los objetos Stroke de una colección Strokes. Si las propiedades ExtendedProperties de un objeto Stroke incluyen propiedades asociadas a objetos Guid con marcas de tiempo especiales, la propiedad ExtendedProperty se quita de la colección.

Private Sub RemoveAllTimeStampProperties()
    ' STROKE_START_GUID and STROKE_END_GUID
    ' are class level string const set via GUID generator
    Dim strokeStartGuid As Guid = New Guid(STROKE_START_GUID)
    Dim strokeEndGuid As Guid = New Guid(STROKE_END_GUID)

    ' access the Strokes property via using statement
    ' to insure that the object mStrokes is disposed when finished
    ' Otherwise, you will have a memory leak
    Using mStrokes As Strokes = mInkObject.Ink.Strokes
        For Each S As Stroke In mStrokes
            If S.ExtendedProperties.Contains(strokeStartGuid) Then
                S.ExtendedProperties.Remove(strokeStartGuid)
            End If
            If S.ExtendedProperties.Contains(strokeEndGuid) Then
                S.ExtendedProperties.Remove(strokeEndGuid)
            End If
        Next
    End Using
End Sub

private void RemoveAllTimeStampProperties()
{
    // STROKE_START_GUID and STROKE_END_GUID
    // are class level string const set via GUID generator
    Guid strokeStartGuid = new Guid(STROKE_START_GUID);
    Guid strokeEndGuid = new Guid(STROKE_END_GUID);

    // access the Strokes property via using statement
    // to insure that the object mStrokes is disposed when finished
    // Otherwise, you will have a memory leak
    using (Strokes mStrokes = mInkObject.Ink.Strokes)
    {
        foreach (Stroke S in mStrokes)
        {
            if (S.ExtendedProperties.Contains(strokeStartGuid))
            {
                S.ExtendedProperties.Remove(strokeStartGuid);
            }
            if (S.ExtendedProperties.Contains(strokeEndGuid))
            {
                S.ExtendedProperties.Remove(strokeEndGuid);
            }
        }
    }
}

Plataformas

Windows Vista

.NET Framework y .NET Compact Framework no admiten todas las versiones de cada plataforma. Para obtener una lista de las versiones compatibles, vea Requisitos de sistema de .NET Framework.