TextPatternRange.FindText(String, Boolean, Boolean) 方法

定义

命名空间:

System.Windows.Automation.Text

程序集:

UIAutomationClient.dll

返回包含指定文本的文本范围子集。

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

参数

text

String

要搜索的文本字符串。

backward

Boolean

如果应该返回最后一个匹配的文本范围而不是第一个，则为 true；否则为 false。

ignoreCase

Boolean

如果应该忽略大小写，则为 true；否则为 false。

返回

TextPatternRange

与指定文本匹配的文本范围；否则为 null（在 Visual Basic 中为 Nothing）。

示例

 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

注解

隐藏文本和可见文本之间没有区别。 UI 自动化客户端可用于IsHiddenAttribute检查文本可见性。

注意

使用 DocumentRange 搜索整个文档。

另请参阅

• TextPattern