ScrollPattern.HorizontalViewSizeProperty Campo

Definición

Espacio de nombres:

System.Windows.Automation

Ensamblado:

UIAutomationClient.dll

Identifica la propiedad HorizontalViewSize.

public: static initonly System::Windows::Automation::AutomationProperty ^ HorizontalViewSizeProperty;

public static readonly System.Windows.Automation.AutomationProperty HorizontalViewSizeProperty;

 staticval mutable HorizontalViewSizeProperty : System.Windows.Automation.AutomationProperty

Public Shared ReadOnly HorizontalViewSizeProperty As AutomationProperty 

Valor de campo

AutomationProperty

Ejemplos

En el ejemplo siguiente, se pasa un elemento raíz a una función que devuelve los tamaños verticales y horizontales actuales de la región visible como porcentajes del área de contenido total.

///--------------------------------------------------------------------
/// <summary>
/// Obtains the current vertical and horizontal sizes of the viewable  
/// region as percentages of the total content area.
/// </summary>
/// <param name="targetControl">
/// The automation element of interest.
/// </param>
/// <returns>
/// The horizontal and vertical view sizes.
/// </returns>
///--------------------------------------------------------------------
private double[] GetViewSizes(AutomationElement targetControl)
{
    if (targetControl == null)
    {
        throw new ArgumentNullException(
            "AutomationElement argument cannot be null.");
    }

    double[] viewSizes = new double[2];

    viewSizes[0] =
        (double)targetControl.GetCurrentPropertyValue(
        ScrollPattern.HorizontalViewSizeProperty);

    viewSizes[1] =
         (double)targetControl.GetCurrentPropertyValue(
         ScrollPattern.VerticalViewSizeProperty);

    return viewSizes;
}

'''--------------------------------------------------------------------
''' <summary>
''' Obtains the current vertical and horizontal sizes of the viewable  
''' region as percentages of the total content area.
''' </summary>
''' <param name="targetControl">
''' The automation element of interest.
''' </param>
''' <returns>
''' The horizontal and vertical view sizes.
''' </returns>
'''--------------------------------------------------------------------
Private Overloads Function GetViewSizes( _
ByVal targetControl As AutomationElement) As Double()
    If targetControl Is Nothing Then
        Throw New ArgumentNullException( _
        "AutomationElement argument cannot be null.")
    End If

    Dim viewSizes(1) As Double

    viewSizes(0) = System.Convert.ToDouble( _
    targetControl.GetCurrentPropertyValue( _
    ScrollPattern.HorizontalViewSizeProperty))

    viewSizes(1) = System.Convert.ToDouble( _
    targetControl.GetCurrentPropertyValue( _
    ScrollPattern.VerticalViewSizeProperty))

    Return viewSizes

End Function 'GetViewSizes

Comentarios

Este identificador lo usan las aplicaciones cliente de Automatización de la interfaz de usuario. Automatización de la interfaz de usuario proveedores deben usar el campo equivalente en ScrollPatternIdentifiers.

Consulte también

• VerticalViewSizeProperty