通过

HotSpotCollection.Add(HotSpot) 方法

  • 参考

定义

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

将指定的 HotSpot 对象追加到 HotSpotCollection 集合的末尾。

public:
 int Add(System::Web::UI::WebControls::HotSpot ^ spot);
public int Add (System.Web.UI.WebControls.HotSpot spot);
member this.Add : System.Web.UI.WebControls.HotSpot -> int
Public Function Add (spot As HotSpot) As Integer

参数

spot
HotSpot

要追加到集合的 HotSpot 对象。

返回

Int32

将对象添加到集合时的索引。

示例

下面的代码示例演示如何以编程方式创建控件 ImageMap 并向其添加两个 CircleHotSpot 对象。 属性HotSpots用于访问 控件的HotSpotCollectionImageMap集合，并将 对象添加到CircleHotSpot其中。 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

方法 Add 将指定的 HotSpot 对象添加到集合的末尾。 若要将 HotSpot 对象添加到集合中的特定索引位置，请使用 Insert 方法。

适用于

另请参阅