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HotSpotCollection 建構函式

  • 參考

定義

命名空間:
System.Web.UI.WebControls
組件:
System.Web.dll

初始化 HotSpotCollection 類別的新執行個體。

public:
 HotSpotCollection();
public HotSpotCollection ();
Public Sub New ()

範例

下列程式代碼範例示範如何使用 建 CircleHotSpot 構函式，以程式設計方式建立兩 CircleHotSpot 個 ImageMap 物件，並將其新增至控件。 若要讓這個範例正確運作，您必須提供 ImageUrl 屬性自己的映像，並適當地更新映像的路徑，讓應用程式可以找到它。

<%@ 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">
  void Page_Load (Object sender, EventArgs e)
  {
    // Programmatically create an ImageMap control.
    ImageMap Shop = new ImageMap();
    
    // Set properties on the ImageMap control.
    Shop.ImageUrl = "Images/ShopChoice.jpg";
    Shop.AlternateText = "Shopping choices";

    // Add the ImageMap control to the 
    // Controls collection of the page.
    Page.Controls.Add(Shop);

    // Programmatically create a CircleHotSpot object.
    CircleHotSpot Circle1 = new CircleHotSpot();
    Circle1.HotSpotMode = HotSpotMode.Navigate;
    Circle1.NavigateUrl = "http://www.tailspintoys.com";
    Circle1.X = 145;
    Circle1.Y = 120;
    Circle1.Radius = 75;
    Circle1.AlternateText = "Shop for toys";

    // Add Circle1 to the ImageMap's HotSpotCollection.    
    Shop.HotSpots.Add(Circle1);

    // Programmatically create a second CircleHotSpot object.
    CircleHotSpot Circle2 = new CircleHotSpot();
    Circle2.HotSpotMode = HotSpotMode.Navigate;
    Circle2.NavigateUrl = "http://www.cohowinery.com";
    Circle2.X = 145;
    Circle2.Y = 290;
    Circle2.Radius = 75;
    Circle2.AlternateText = "Shop for wine";

    // Add Circle2 to the ImageMap's HotSpotCollection.    
    Shop.HotSpots.Add(Circle2);
  }

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="head1" runat="server">
  <title>ImageMap Class C# Constructor Example</title>
</head>
  <body>
    <form id="form1" runat="server">
    
      <h3>ImageMap Class C# Constructor Example</h3>
      
      <h4>Shopping Choices:</h4>
      
    </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">
  
  Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
    
    ' Programmatically create an ImageMap control.
    Dim Shop As New ImageMap
    Shop.ImageUrl = "Images/ShopChoice.jpg"
    Shop.AlternateText = "Shopping choices"
    
    ' Add the ImageMap control to the 
    ' Controls collection of the page.
    Page.Controls.Add(Shop)
    
    ' Programmatically create a CircleHotSpot object.
    Dim Circle1 As New CircleHotSpot
    Circle1.HotSpotMode = HotSpotMode.Navigate
    Circle1.NavigateUrl = "http://www.tailspintoys.com"
    Circle1.X = 145
    Circle1.Y = 120
    Circle1.Radius = 75
    Circle1.AlternateText = "Shop for toys"
    
    ' Add Circle1 to the ImageMap's HotSpotCollection.    
    Shop.HotSpots.Add(Circle1)
    
    ' Programmatically create a second CircleHotSpot object.
    Dim Circle2 As New CircleHotSpot
    Circle2.HotSpotMode = HotSpotMode.Navigate
    Circle2.NavigateUrl = "http://www.cohowinery.com"
    Circle2.X = 145
    Circle2.Y = 290
    Circle2.Radius = 75
    Circle2.AlternateText = "Shop for wine"

    
    ' Add Circle2 to the ImageMap's HotSpotCollection.    
    Shop.HotSpots.Add(Circle2)
    
  End Sub
  
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="head1" runat="server">
  <title>ImageMap Class VB Constructor Example</title>
</head>
  <body>
    <form id="form1" runat="server">
    
      <h3>ImageMap Class VB Constructor Example</h3>
      
      <h4>Shopping Choices:</h4>
      
    </form>      
  </body>
</html>

備註

在衍生類別中覆寫時，這個建構函式會初始化 類別的新實例 HotSpotCollection 。

適用於

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