TextPatternRange.FindText(String, Boolean, Boolean) 方法

定義

命名空間:

System.Windows.Automation.Text

組件:

UIAutomationClient.dll

傳回包含指定文字的文字範圍子集。

public:
 System::Windows::Automation::Text::TextPatternRange ^ FindText(System::String ^ text, bool backward, bool ignoreCase);

public System.Windows.Automation.Text.TextPatternRange FindText (string text, bool backward, bool ignoreCase);

member this.FindText : string * bool * bool -> System.Windows.Automation.Text.TextPatternRange

Public Function FindText (text As String, backward As Boolean, ignoreCase As Boolean) As TextPatternRange

參數

text

String

要搜尋的文字字串。

backward

Boolean

如果傳回的是最後產生的文字範圍，而不是第一個文字範圍，則為 true；否則為 false。

ignoreCase

Boolean

如果要忽略大小寫，則為 true；否則為 false。

傳回

TextPatternRange

符合指定之文字的文字範圍；否則為 Null (在 Visual Basic 中為 Nothing)。

範例

 private TextPatternRange TextFromSelection(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 null;
    }
    TextPatternRange[] tprSelection = textpatternPattern.GetSelection();
    // Find 'text' in selection range
    return tprSelection[0].FindText("text", false, true);
}

Private Function TextFromSelection(ByVal target As AutomationElement) As TextPatternRange
    ' 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()
    ' Find 'text' in selection range
    Return currentSelection(0).FindText("text", False, True)
End Function

備註

隱藏和可見文字之間沒有任何差異。 使用者介面自動化用戶端可用來 IsHiddenAttribute 檢查文字可見度。

注意

使用 DocumentRange 來搜尋整份檔。

另請參閱

• TextPattern