TextPatternRange.Compare(TextPatternRange) Método

Definição

Namespace:

System.Windows.Automation.Text

Assembly:

UIAutomationClient.dll

Retorna um valor Boolean que indica se o alcance (o ponto de extremidade Start até o ponto de extremidade End) de um intervalo de texto é igual a outro intervalo de texto.

public:
 bool Compare(System::Windows::Automation::Text::TextPatternRange ^ range);

public bool Compare (System.Windows.Automation.Text.TextPatternRange range);

member this.Compare : System.Windows.Automation.Text.TextPatternRange -> bool

Public Function Compare (range As TextPatternRange) As Boolean

Parâmetros

range

TextPatternRange

Um intervalo de texto a ser comparado.

Retornos

Boolean

true se o alcance dos dois intervalos de texto for idêntico, caso contrário, false.

Exceções

ArgumentException

Se o intervalo sendo comparado não vem do mesmo provedor de texto.

Exemplos

private Boolean CompareRanges(AutomationElement target)
{
    // Specify the control type we're looking for, in this case 'Document'
    PropertyCondition cond = new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Document);

    // target --> The root AutomationElement.
    AutomationElement textProvider = target.FindFirst(TreeScope.Descendants, cond);

    TextPattern textpatternPattern = textProvider.GetCurrentPattern(TextPattern.Pattern) as TextPattern;

    if (textpatternPattern == null)
    {
        Console.WriteLine("Root element does not contain a descendant that supports TextPattern.");
        return false;
    }
    TextPatternRange[] currentSelection = textpatternPattern.GetSelection();
    TextPatternRange[] currentVisibleRanges = textpatternPattern.GetVisibleRanges();
    return currentSelection[0].Compare(currentVisibleRanges[0]);
}

Private Function CompareRanges(ByVal target As AutomationElement) As Boolean
    ' Specify the control type we're looking for, in this case 'Document'
    Dim cond As PropertyCondition = New PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Document)

    ' target --> The root AutomationElement.
    Dim textProvider As AutomationElement = target.FindFirst(TreeScope.Descendants, cond)

    Dim textpatternPattern As TextPattern = CType(textProvider.GetCurrentPattern(TextPattern.Pattern), TextPattern)

    If (textpatternPattern Is Nothing) Then
        Console.WriteLine("Root element does not contain a descendant that supports TextPattern.")
        Return Nothing
    End If
    Dim currentSelection As TextPatternRange() = textpatternPattern.GetSelection()
    Dim currentVisibleRange As TextPatternRange() = textpatternPattern.GetVisibleRanges()
    Return currentSelection(0).Compare(currentVisibleRange(0))
End Function

Confira também

• TextPatternRangeEndpoint