MultipleViewPattern.CurrentViewProperty Campo

Definição

Namespace:

System.Windows.Automation

Assembly:

UIAutomationClient.dll

Identifica a propriedade CurrentView.

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

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

 staticval mutable CurrentViewProperty : System.Windows.Automation.AutomationProperty

Public Shared ReadOnly CurrentViewProperty As AutomationProperty 

Valor do campo

AutomationProperty

Exemplos

No exemplo a seguir, um inteiro é obtido que representa a exibição atual de um controle que dá MultipleViewPatternsuporte a .

///--------------------------------------------------------------------
/// <summary>
/// Finds all automation elements that satisfy 
/// the specified condition(s).
/// </summary>
/// <param name="targetApp">
/// The automation element from which to start searching.
/// </param>
/// <returns>
/// A collection of automation elements satisfying 
/// the specified condition(s).
/// </returns>
///--------------------------------------------------------------------
private AutomationElementCollection FindAutomationElement(
    AutomationElement targetApp)
{
    if (targetApp == null)
    {
        throw new ArgumentException("Root element cannot be null.");
    }

    PropertyCondition conditionSupportsMultipleView =
        new PropertyCondition(
        AutomationElement.IsMultipleViewPatternAvailableProperty, true);

    return targetApp.FindAll(
        TreeScope.Descendants, conditionSupportsMultipleView);
}

'/--------------------------------------------------------------------
'/ <summary>
'/ Finds all automation elements that satisfy 
'/ the specified condition(s).
'/ </summary>
'/ <param name="targetApp">
'/ The automation element from which to start searching.
'/ </param>
'/ <returns>
'/ A collection of automation elements satisfying 
'/ the specified condition(s).
'/ </returns>
'/--------------------------------------------------------------------
Private Function FindAutomationElement( _
ByVal targetApp As AutomationElement) As AutomationElementCollection
    If targetApp Is Nothing Then
        Throw New ArgumentException("Root element cannot be null.")
    End If

    Dim conditionSupportsMultipleView As New PropertyCondition( _
    AutomationElement.IsMultipleViewPatternAvailableProperty, True)

    Return targetApp.FindAll( _
    TreeScope.Descendants, conditionSupportsMultipleView)

End Function 'FindAutomationElement

///--------------------------------------------------------------------
/// <summary>
/// Gets the current view identifier from a target.
/// </summary>
/// <param name="multipleViewControl">
/// The current multiple view control.
/// </param>
/// <returns>
/// The current view identifier.
/// </returns>
///--------------------------------------------------------------------
private int GetCurrentViewProperty(
    AutomationElement multipleViewControl)
{
    if (multipleViewControl == null)
    {
        throw new ArgumentNullException(
            "AutomationElement parameter must not be null.");
    }

    return (int)multipleViewControl.GetCurrentPropertyValue(
        MultipleViewPattern.CurrentViewProperty);
}

'/--------------------------------------------------------------------
'/ <summary>
'/ Gets the current view identifier from a target.
'/ </summary>
'/ <param name="multipleViewControl">
'/ The current multiple view control.
'/ </param>
'/ <returns>
'/ The current view identifier.
'/ </returns>
'/--------------------------------------------------------------------
Private Function GetCurrentViewProperty( _
ByVal multipleViewControl As AutomationElement) As Integer
    If multipleViewControl Is Nothing Then
        Throw New ArgumentNullException( _
        "AutomationElement parameter must not be null.")
    End If

    Return Fix(multipleViewControl.GetCurrentPropertyValue( _
    MultipleViewPattern.CurrentViewProperty))

End Function 'GetCurrentViewProperty

Comentários

Esse identificador é usado por aplicativos cliente de automação da interface do usuário. Automação da Interface do Usuário provedores devem usar o campo equivalente em MultipleViewPatternIdentifiers.