ImageMap Control PostBack : ImageMap « ASP.net Controls « ASP.NET Tutorial






  1. ASP.NET Tutorial
  2. ASP.net Controls
  3. ImageMap
<%@ 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">

    protected void mapMenu_Click(object sender, ImageMapEventArgs e)
    {
        switch (e.PostBackValue)
        {
            case "ToUpper":
                txtText.Text = txtText.Text.ToUpper();
                break;
            case "ToLower":
                txtText.Text = txtText.Text.ToLower();
                break;
            case "Erase":
                txtText.Text = String.Empty;
                break;
        }
    }
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
    <title>ImageMap PostBack</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>

    <asp:ImageMap
        id="mapMenu"
        ImageUrl="MenuBar.gif"
        HotSpotMode="PostBack"
        Runat="server" OnClick="mapMenu_Click">
        <asp:RectangleHotSpot
            PostBackValue="ToUpper"
            Left="0"
            Top="0"
            Right="100"
            Bottom="30"
            AlternateText="To Uppercase" />
        <asp:RectangleHotSpot
            PostBackValue="ToLower"
            Left="100"
            Top="0"
            Right="200"
            Bottom="30"
            AlternateText="To Uppercase" />
        <asp:RectangleHotSpot
            PostBackValue="Erase"
            Left="200"
            Top="0"
            Right="300"
            Bottom="30"
            AlternateText="To Uppercase" />
    </asp:ImageMap>
    <br />

    <asp:TextBox
        id="txtText"
        TextMode="MultiLine"
        Columns="40"
        Rows="5"
        Runat="server" />

    </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