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HotSpotCollection Constructor

  • Reference

Definition

Namespace:
System.Web.UI.WebControls
Assembly:
System.Web.dll

Initializes a new instance of the HotSpotCollection class.

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

Examples

The following code example demonstrates how to use the CircleHotSpot constructor to programmatically create two CircleHotSpot objects and add them to an ImageMap control. For this example to work correctly, you must supply your own image for the ImageUrl property and update the path to the image appropriately so that the application can locate it.

<%@ 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>

Remarks

When overridden in a derived class, this constructor initializes a new instance of the HotSpotCollection class.

Applies to

See also