SiteMapPath 建構函式
定義
重要
部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。
初始化 SiteMapPath 類別的新執行個體。
public:
SiteMapPath();public SiteMapPath ();Public Sub New ()範例
下列程式碼範例示範如何使用 建 SiteMapPath 構函式將控制項新增 SiteMapPath 至頁面。 若要讓範例能夠運作，您必須將映射新增至根目錄，並將範例程式碼中的映射名稱從 「myimage.jpg」 變更為映射檔的名稱。
<%@ Page language="c#"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
private void Page_Load(object sender, System.EventArgs e)
{
// Create the SiteMapPath control.
SiteMapPath navpath = new SiteMapPath();
// Make the root node look unique.
// The Image that you can use in your Web page is an
// instance of the WebControls.Image class, not the
// Drawing.Image class.
System.Web.UI.WebControls.Image rootNodeImage =
new System.Web.UI.WebControls.Image();
rootNodeImage.ImageUrl = "myimage.jpg";
ImageTemplate rootNodeImageTemplate = new ImageTemplate();
rootNodeImageTemplate.MyImage = rootNodeImage;
navpath.RootNodeTemplate = rootNodeImageTemplate;
// Make the current node look unique.
Style currentNodeStyle = new Style();
navpath.CurrentNodeStyle.ForeColor = System.Drawing.Color.AliceBlue;
navpath.CurrentNodeStyle.BackColor = System.Drawing.Color.Bisque;
// Set the path separator to be something other
// than the default.
navpath.PathSeparator = "::";
PlaceHolder1.Controls.Add(navpath);
}
// A simple Template class to wrap an image.
public class ImageTemplate : ITemplate
{
private System.Web.UI.WebControls.Image myImage;
public System.Web.UI.WebControls.Image MyImage
{
get
{
return myImage;
}
set
{
myImage = value;
}
}
public void InstantiateIn(Control container)
{
container.Controls.Add(MyImage);
}
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>About Our Company</title>
</head>
<body>
<form id="Form1" method="post" runat="server">
<asp:PlaceHolder id="PlaceHolder1" runat="server"></asp:PlaceHolder>
<h1>About Our Company</h1>
<p>Our company was founded in 1886.</p>
<p>We use only the finest ingredients, organically grown fruits, and
natural spices in our homemade pies. We use no artificial preservatives
or coloring agents. We would not have it any other way!</p>
</form>
</body>
</html>
<%@ Page language="VB"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
Private Sub Page_Load(sender As Object, e As EventArgs)
' Create the SiteMapPath control.
Dim navpath As New SiteMapPath()
' Make the root node look unique.
' The Image that you can use in your Web page is an
' instance of the WebControls.Image class, not the
' Drawing.Image class.
Dim rootNodeImage As New System.Web.UI.WebControls.Image()
rootNodeImage.ImageUrl = "myimage.jpg"
Dim rootNodeImageTemplate As New ImageTemplate()
rootNodeImageTemplate.MyImage = rootNodeImage
navpath.RootNodeTemplate = rootNodeImageTemplate
' Make the current node look unique.
Dim currentNodeStyle As New Style()
navpath.CurrentNodeStyle.ForeColor = System.Drawing.Color.AliceBlue
navpath.CurrentNodeStyle.BackColor = System.Drawing.Color.Bisque
' Set the path separator to be something other
' than the default.
navpath.PathSeparator = "::"
PlaceHolder1.Controls.Add(navpath)
End Sub ' Page_Load
' A simple Template class to wrap an image.
Public Class ImageTemplate
Implements ITemplate
Private anImage As System.Web.UI.WebControls.Image
Public Property MyImage As System.Web.UI.WebControls.Image
Get
return anImage
End Get
Set
anImage = value
End Set
End Property ' MyImage
Public Overridable Sub InstantiateIn(ByVal container As Control) Implements ITemplate.InstantiateIn
container.Controls.Add(MyImage)
End Sub ' InstantiateIn
End Class ' ImageTemplate
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>About Our Company</title>
</head>
<body>
<form id="Form1" method="post" runat="server">
<asp:PlaceHolder id="PlaceHolder1" runat="server"></asp:PlaceHolder>
<h1>About Our Company</h1>
<p>Our company was founded in 1886.</p>
<p>We use only the finest ingredients, organically grown fruits, and
natural spices in our homemade pies. We use no artificial preservatives
or coloring agents. We would not have it any other way!</p>
</form>
</body>
</html>
備註
使用此建構函式來建立和初始化 類別的新實例 SiteMapPath 。 若要動態新增 SiteMapPath 控制項至頁面，請建立新的 SiteMapPath 物件、設定其屬性，然後將它新增至 Control.Controls 容器控制項的集合，例如 PlaceHolder 。