IAnchorInfo 介面

定義

命名空間:

System.Windows.Annotations

組件:

PresentationFramework.dll

提供比對附註與對應標註物件的功能。

public interface class IAnchorInfo

public interface IAnchorInfo

type IAnchorInfo = interface

Public Interface IAnchorInfo

範例

請考慮具有批註窗格的簡單檔讀取器應用程式。 註解窗格可能是清單方塊，其中顯示來自錨定到文件之註釋清單的文字。 如果使用者在清單方塊中選取項目，則應用程式會將對應註釋物件所錨定之文件中的段落帶入檢視。

下列範例示範如何實作做為批註窗格之這類清單方塊的事件處理常式：

void annotationsListBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
{

    Annotation comment = (sender as ListBox).SelectedItem as Annotation;
    if (comment != null)
    {
        // IAnchorInfo info;
        // service is an AnnotationService object
        // comment is an Annotation object
        info = AnnotationHelper.GetAnchorInfo(this.service, comment);
        TextAnchor resolvedAnchor = info.ResolvedAnchor as TextAnchor;
        TextPointer textPointer = (TextPointer)resolvedAnchor.BoundingStart;
        textPointer.Paragraph.BringIntoView();
    }
}

Private Sub annotationsListBox_SelectionChanged(ByVal sender As Object, ByVal e As SelectionChangedEventArgs)

    Dim comment As Annotation = TryCast((TryCast(sender, ListBox)).SelectedItem, Annotation)
    If comment IsNot Nothing Then
        ' service is an AnnotationService object
        ' comment is an Annotation object
        info = AnnotationHelper.GetAnchorInfo(Me.service, comment)
        Dim resolvedAnchor As TextAnchor = TryCast(info.ResolvedAnchor, TextAnchor)
        Dim textPointer As TextPointer = CType(resolvedAnchor.BoundingStart, TextPointer)
        textPointer.Paragraph.BringIntoView()
    End If
End Sub

屬性

Anchor	取得附註的錨點。
Annotation	取得附註物件。
ResolvedAnchor	取得物件，表示樹狀目錄中已解析 Anchor 的位置。

另請參閱

• GetAnchorInfo(AnnotationService, Annotation)