ScrollPattern.VerticalScrollPercentProperty Campo

Definizione

Spazio dei nomi:

System.Windows.Automation

Assembly:

UIAutomationClient.dll

Identifica la proprietà VerticalScrollPercent.

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

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

 staticval mutable VerticalScrollPercentProperty : System.Windows.Automation.AutomationProperty

Public Shared ReadOnly VerticalScrollPercentProperty As AutomationProperty 

Valore del campo

AutomationProperty

Esempio

Nell'esempio seguente viene passato un elemento radice a una funzione che restituisce le percentuali di scorrimento correnti dell'area visualizzabile all'interno dell'area del contenuto.

///--------------------------------------------------------------------
/// <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

Commenti

Questo identificatore viene usato dalle applicazioni client Automazione interfaccia utente. Automazione interfaccia utente provider devono usare il campo equivalente in ScrollPatternIdentifiers.

Vedi anche

• HorizontalScrollPercentProperty