Important properties, events and methods of ImageMap control : ImageMap « ASP.net Controls « ASP.NET Tutorial

AccessKey:        a key that navigates to the ImageMap control.

AlternateText:    alternate text for the image (required for accessibility).

DescriptionUrl:   a link to a page which contains a detailed description of the image.

GenerateEmptyAlternateText: set the AlternateText property to an empty string.
      
HotSpotMode:      the behavior of the image map when you click a region. 
                  Possible values are Inactive, Navigate, NotSet, and PostBack.

HotSpots:         retrieve the collection of HotSpots contained in the ImageMap control.

ImageAlign:       align the image map with other HTML elements in the page. 
                  Possible values are AbsBottom, AbsMiddle, Baseline, Bottom, 
                  Left, Middle, NotSet, Right, TextTop, and Top.

ImageUrl:         specify the URL to the image.

TabIndex:         the tab order of the ImageMap control.

Target:           open a page in a new window.

Focus:            set the initial form focus to the ImageMap control.

Click:            Raised when you click a region of the ImageMap and 
                  the HotSpotMode property is set to the value PostBack.

An ImageMap control is composed out of instances of the HotSpot class. 
A HotSpot defines the clickable regions in an image map. 
The ASP.NET framework has with three HotSpot classes:

CircleHotSpot:     a circular region in an image map.

PolygonHotSpot:    an irregularly shaped region in an image map.

RectangleHotSpot:  a rectangular region in an image map.





<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
    <title>ImageMap Navigate</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>

    <asp:ImageMap
        id="mapNavigate"
        ImageUrl="yourImage.jpg"
        Runat="server">
        <asp:RectangleHotSpot
            NavigateUrl="Home.aspx"
            Left="0"
            Top="0"
            Right="100"
            Bottom="50"
            AlternateText="Navigate to Home" />
        <asp:RectangleHotSpot
            NavigateUrl="Products.aspx"
            Left="100"
            Top="0"
            Right="200"
            Bottom="50"
            AlternateText="Navigate to Products" />
        <asp:RectangleHotSpot
            NavigateUrl="Services.aspx"
            Left="200"
            Top="0"
            Right="300"
            Bottom="50"
            AlternateText="Navigate to Services" />
    </asp:ImageMap>

    </div>
    </form>
</body>
</html>

3.8.ImageMap
	3.8.1.	Important properties, events and methods of ImageMap control
	3.8.2.	Specifying sections of an image that are clickable (C#)
	3.8.3.	Specifying sections of an image that are clickable (VB)
	3.8.4.	ImageMap Control PostBack
	3.8.5.	Mark asp:ImageMap with asp:RectangleHotSpot
	3.8.6.	Set AssociatedControlID for asp:Label
	3.8.7.	ImageMap Test
	3.8.8.	Called when hot spot has HotSpotMode=PostBack