Underline 建構函式

定義

命名空間:

System.Windows.Documents

組件:

PresentationFramework.dll

初始化 Underline 類別的新執行個體。

多載

Underline()	初始化 Underline 類別的新的空執行個體。
Underline(Inline)	初始化 Underline 類別的新執行個體，並將指定的 Inline 物件做為新 Underline 的初始內容。
Underline(Inline, TextPointer)	初始化 Underline 類別的新執行個體，並將指定的 Inline 物件做為新 Underline 的初始內容，以及會替新 TextPointer 項目指定插入位置的 Inline。
Underline(TextPointer, TextPointer)	初始化 Underline 類別的新執行個體，並採用兩個 TextPointer 物件，該物件表示新 Underline 要包含之內容選取範圍的開頭及結尾。

Underline()

初始化 Underline 類別的新的空執行個體。

public:
 Underline();

public Underline ();

Public Sub New ()

Underline(Inline)

初始化 Underline 類別的新執行個體，並將指定的 Inline 物件做為新 Underline 的初始內容。

public:
 Underline(System::Windows::Documents::Inline ^ childInline);

public Underline (System.Windows.Documents.Inline childInline);

new System.Windows.Documents.Underline : System.Windows.Documents.Inline -> System.Windows.Documents.Underline

Public Sub New (childInline As Inline)

參數

childInline

Inline

Inline 物件，用來指定新 Underline 的初始內容。

範例

下列範例示範此建構函式的使用方式。

// A child Inline element for the new Underline element.
Run runx = new Run("Text to make underlined.");

// After this line executes, the new element "underx"
// contains the specified Inline element, "runx".
Underline underx = new Underline(runx);

' A child Inline element for the new Underline element.
Dim runx1 As New Run("Text to make underlined.")

' After this line executes, the new element "underx"
' contains the specified Inline element, "runx".
Dim underx1 As New Underline(runx1)

Underline(Inline, TextPointer)

初始化 Underline 類別的新執行個體，並將指定的 Inline 物件做為新 Underline 的初始內容，以及會替新 TextPointer 項目指定插入位置的 Inline。

public:
 Underline(System::Windows::Documents::Inline ^ childInline, System::Windows::Documents::TextPointer ^ insertionPosition);

public Underline (System.Windows.Documents.Inline childInline, System.Windows.Documents.TextPointer insertionPosition);

new System.Windows.Documents.Underline : System.Windows.Documents.Inline * System.Windows.Documents.TextPointer -> System.Windows.Documents.Underline

Public Sub New (childInline As Inline, insertionPosition As TextPointer)

參數

childInline

Inline

Inline 物件，用來指定新 Underline 的初始內容。 這個參數可能是 null，在這個情況下，不會插入 Inline。

insertionPosition

TextPointer

TextPointer，指定 Underline 項目在建立之後所要插入的位置，null 表示不會自動插入。

範例

下列範例示範此建構函式的使用方式。

// A child Inline element for the new Underline element.
Run runx = new Run("Text to make underlined.");

// An empty paragraph will serve as the container for the new Underline element.
Paragraph parx = new Paragraph();

// After this line executes, the new element "underx"
// contains the specified Inline element, "runx".  Also, "underx" is
// inserted at the point indicated by the insertionPosition parameter, 
// which in this case indicates the content start position in the Paragraph 
// element "parx".
Underline underx = new Underline(runx, parx.ContentStart);

' A child Inline element for the new Underline element.
Dim runx2 As New Run("Text to make underlined.")

' An empty paragraph will serve as the container for the new Underline element.
Dim parx2 As New Paragraph()

' After this line executes, the new element "underx"
' contains the specified Inline element, "runx".  Also, "underx" is
' inserted at the point indicated by the insertionPosition parameter, 
' which in this case indicates the content start position in the Paragraph 
' element "parx".
Dim underx2 As New Underline(runx2, parx2.ContentStart)

Underline(TextPointer, TextPointer)

初始化 Underline 類別的新執行個體，並採用兩個 TextPointer 物件，該物件表示新 Underline 要包含之內容選取範圍的開頭及結尾。

public:
 Underline(System::Windows::Documents::TextPointer ^ start, System::Windows::Documents::TextPointer ^ end);

public Underline (System.Windows.Documents.TextPointer start, System.Windows.Documents.TextPointer end);

new System.Windows.Documents.Underline : System.Windows.Documents.TextPointer * System.Windows.Documents.TextPointer -> System.Windows.Documents.Underline

Public Sub New (start As TextPointer, end As TextPointer)

參數

start

TextPointer

TextPointer，表示新 Underline 要包含之內容選取範圍的開頭。

end

TextPointer

TextPointer，表示新 Underline 要包含之內容選取範圍的結尾。

例外狀況

ArgumentNullException

當 start 或 end 為 null 時引發。

ArgumentException

在 start 及 end 並未解析為適合由 Underline 項目包含的內容範圍時引發，例如，start 及 end 表示不同段落中的位置時。

範例

下列範例示範此建構函式的使用方式。

// Create a paragraph and three text runs to serve as example content.  
Paragraph parx = new Paragraph();
Run run1 = new Run("Text run 1.");
Run run2 = new Run("Text run 2, make underlined.");
Run run3 = new Run("Text run 3.");

// Add the three text runs to the paragraph, separated by linebreaks.
parx.Inlines.Add(run1);
parx.Inlines.Add(new LineBreak());
parx.Inlines.Add(run2);
parx.Inlines.Add(new LineBreak());
parx.Inlines.Add(run3);

// After this line executes, the selection of content
// indicated by the "start" and "end" parameters will be
// enclosed by the new Underline.  In this case, the new Underline
// will enclose the second text run, "run2".
Underline underx = new Underline(run2.ContentStart, run2.ContentEnd);

' Create a paragraph and three text runs to serve as example content.  
Dim parx As New Paragraph()
Dim run1 As New Run("Text run 1.")
Dim run2 As New Run("Text run 2, make underlined.")
Dim run3 As New Run("Text run 3.")

' Add the three text runs to the paragraph, separated by linebreaks.
parx.Inlines.Add(run1)
parx.Inlines.Add(New LineBreak())
parx.Inlines.Add(run2)
parx.Inlines.Add(New LineBreak())
parx.Inlines.Add(run3)

' After this line executes, the selection of content
' indicated by the "start" and "end" parameters will be
' enclosed by the new Underline.  In this case, the new Underline
' will enclose the second text run, "run2".
Dim underx As New Underline(run2.ContentStart, run2.ContentEnd)

備註

此建構函式旨在初始化新 Underline 元素，使其包含預先存在的內容選取範圍。