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SelectionPattern.Pattern Campo

Definição

Identifica o padrão de controle SelectionPattern.

public: static initonly System::Windows::Automation::AutomationPattern ^ Pattern;
public static readonly System.Windows.Automation.AutomationPattern Pattern;
 staticval mutable Pattern : System.Windows.Automation.AutomationPattern
Public Shared ReadOnly Pattern As AutomationPattern 

Valor do campo

AutomationPattern

Exemplos

No exemplo a seguir, um SelectionPattern padrão de controle é obtido de um AutomationElement.

///--------------------------------------------------------------------
/// <summary>
/// Obtains a SelectionPattern control pattern from an 
/// automation element.
/// </summary>
/// <param name="targetControl">
/// The automation element of interest.
/// </param>
/// <returns>
/// A SelectionPattern object.
/// </returns>
///--------------------------------------------------------------------
private SelectionPattern GetSelectionPattern(
    AutomationElement targetControl)
{
    SelectionPattern selectionPattern = null;

    try
    {
        selectionPattern =
            targetControl.GetCurrentPattern(SelectionPattern.Pattern)
            as SelectionPattern;
    }
    // Object doesn't support the SelectionPattern control pattern
    catch (InvalidOperationException)
    {
        return null;
    }

    return selectionPattern;
}
'''--------------------------------------------------------------------
''' <summary>
''' Obtains a SelectionPattern control pattern from an 
''' automation element.
''' </summary>
''' <param name="targetControl">
''' The automation element of interest.
''' </param>
''' <returns>
''' A SelectionPattern object.
''' </returns>
'''--------------------------------------------------------------------
Private Function GetSelectionPattern( _
ByVal targetControl As AutomationElement) As SelectionPattern
    Dim selectionPattern As SelectionPattern = Nothing

    Try
        selectionPattern = DirectCast( _
        targetControl.GetCurrentPattern(selectionPattern.Pattern), _
        SelectionPattern)
    ' Object doesn't support the SelectionPattern control pattern
    Catch
        Return Nothing
    End Try

    Return selectionPattern
End Function 'GetSelectionPattern

Comentários

Esse identificador é usado por aplicativos cliente Automação da Interface do Usuário. Automação da Interface do Usuário provedores devem usar o campo equivalente em SelectionPatternIdentifiers.

O identificador de padrão é passado para métodos como GetCurrentPattern recuperar o padrão de controle de interesse do especificado AutomationElement.

Aplica-se a