TextPointerContext 열거형

정의

네임스페이스:
System.Windows.Documents
어셈블리:
PresentationFramework.dll

지정된 TextPointerLogicalDirection 인접한 콘텐츠의 범주를 결정합니다.

public enum class TextPointerContext
public enum TextPointerContext
type TextPointerContext = 
Public Enum TextPointerContext
상속
Object
ValueType
Enum
TextPointerContext

필드

Name 값 Description
None 0

TextPointer 콘텐츠의 시작 또는 끝에 인접합니다.
Text 1

텍스트 TextPointer 에 인접합니다.
EmbeddedElement 2

포함 TextPointer 또는 UIElement.에 인접합니다ContentElement.
ElementStart 3

는 TextPointer .의 여는 태그에 인접합니다 TextElement.
ElementEnd 4

의 TextPointer 닫는 태그에 인접합니다 TextElement.

예제

// This method will extract and return a string that contains a representation of 
// the XAML structure of content elements in a given TextElement.        
string GetXaml(TextElement element)
{
    StringBuilder buffer = new StringBuilder();
 
    // Position a "navigator" pointer before the opening tag of the element.
    TextPointer navigator = element.ElementStart;

    while (navigator.CompareTo(element.ElementEnd) < 0)
    {
        switch (navigator.GetPointerContext(LogicalDirection.Forward))
        {
            case TextPointerContext.ElementStart : 
                // Output opening tag of a TextElement
                buffer.AppendFormat("<{0}>", navigator.GetAdjacentElement(LogicalDirection.Forward).GetType().Name);
                break;
            case TextPointerContext.ElementEnd :
                // Output closing tag of a TextElement
                buffer.AppendFormat("</{0}>", navigator.GetAdjacentElement(LogicalDirection.Forward).GetType().Name);
                break;
            case TextPointerContext.EmbeddedElement :
                // Output simple tag for embedded element
                buffer.AppendFormat("<{0}/>", navigator.GetAdjacentElement(LogicalDirection.Forward).GetType().Name);
                break;
            case TextPointerContext.Text :
                // Output the text content of this text run
                buffer.Append(navigator.GetTextInRun(LogicalDirection.Forward));
                break;
        }
 
        // Advance the naviagtor to the next context position.
        navigator = navigator.GetNextContextPosition(LogicalDirection.Forward);
    } // End while.

    return buffer.ToString();
} // End GetXaml method.

' This method will extract and return a string that contains a representation of 
' the XAML structure of content elements in a given TextElement.        
Private Function GetXaml_Renamed(ByVal element As TextElement) As String
    Dim buffer As New StringBuilder()

    ' Position a "navigator" pointer before the opening tag of the element.
    Dim navigator As TextPointer = element.ElementStart

    Do While navigator.CompareTo(element.ElementEnd) < 0
        Select Case navigator.GetPointerContext(LogicalDirection.Forward)
            Case TextPointerContext.ElementStart
                ' Output opening tag of a TextElement
                buffer.AppendFormat("<{0}>", navigator.GetAdjacentElement(LogicalDirection.Forward).GetType().Name)
            Case TextPointerContext.ElementEnd
                ' Output closing tag of a TextElement
                buffer.AppendFormat("</{0}>", navigator.GetAdjacentElement(LogicalDirection.Forward).GetType().Name)
            Case TextPointerContext.EmbeddedElement
                ' Output simple tag for embedded element
                buffer.AppendFormat("<{0}/>", navigator.GetAdjacentElement(LogicalDirection.Forward).GetType().Name)
            Case TextPointerContext.Text
                ' Output the text content of this text run
                buffer.Append(navigator.GetTextInRun(LogicalDirection.Forward))
        End Select

        ' Advance the naviagtor to the next context position.
        navigator = navigator.GetNextContextPosition(LogicalDirection.Forward)

    Loop ' End while.

    Return buffer.ToString()

End Function ' End GetXaml method.

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