ScrollPattern.HorizontalScrollPercentProperty Campo

Definición

Espacio de nombres:

System.Windows.Automation

Ensamblado:

UIAutomationClient.dll

Identifica la propiedad HorizontalScrollPercent.

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

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

 staticval mutable HorizontalScrollPercentProperty : System.Windows.Automation.AutomationProperty

Public Shared ReadOnly HorizontalScrollPercentProperty As AutomationProperty 

Valor de campo

AutomationProperty

Ejemplos

En el ejemplo siguiente, se pasa un elemento raíz a una función que devuelve los porcentajes de desplazamiento horizontal y vertical actuales de la región visible dentro del área de contenido.

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

    double[] percentage = new double[2];

    percentage[0] =
        (double)targetControl.GetCurrentPropertyValue(
        ScrollPattern.HorizontalScrollPercentProperty);

    percentage[1] =
         (double)targetControl.GetCurrentPropertyValue(
         ScrollPattern.VerticalScrollPercentProperty);

    return percentage;
}

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

    Dim percentage(1) As Double

    percentage(0) = System.Convert.ToDouble( _
    targetControl.GetCurrentPropertyValue( _
    ScrollPattern.HorizontalScrollPercentProperty))

    percentage(1) = System.Convert.ToDouble( _
    targetControl.GetCurrentPropertyValue( _
    ScrollPattern.VerticalScrollPercentProperty))

    Return percentage

End Function 'GetScrollPercentages

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

• VerticalScrollPercentProperty