通过

ImageMap.HotSpots 属性

  • 参考

定义

命名空间:
System.Web.UI.WebControls
程序集:
System.Web.dll

获取 HotSpot 对象的集合，这些对象表示 ImageMap 控件中定义的作用点区域。

public:
 property System::Web::UI::WebControls::HotSpotCollection ^ HotSpots { System::Web::UI::WebControls::HotSpotCollection ^ get(); };
[System.Web.UI.PersistenceMode(System.Web.UI.PersistenceMode.InnerDefaultProperty)]
public System.Web.UI.WebControls.HotSpotCollection HotSpots { get; }
[<System.Web.UI.PersistenceMode(System.Web.UI.PersistenceMode.InnerDefaultProperty)>]
member this.HotSpots : System.Web.UI.WebControls.HotSpotCollection
Public ReadOnly Property HotSpots As HotSpotCollection

属性值

HotSpotCollection

一个 HotSpotCollection 对象，表示 ImageMap 控件中定义的作用点区域。

属性
PersistenceModeAttribute

示例

下面的代码示例演示如何以编程方式创建控件并向其添加两个ImageMapCircleHotSpot对象。 属性 HotSpots 用于访问 HotSpotCollection 控件的 ImageMap ，并将 对象添加到 CircleHotSpot 控件。 若要使此示例正常工作，必须为 属性提供自己的映像 ImageUrl ，并相应地更新映像的路径，以便应用程序能够找到它。

<%@ 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>

注解

HotSpots使用 属性以编程方式管理控件中的ImageMap热点区域。 可以使用 HotSpots 属性添加、插入、删除和检索 HotSpot 对象。 有关详细信息，请参阅 HotSpotCollection。

适用于

另请参阅