Welcome to the ASP.NET Forums, lily1.
<script runat="server">
Sub getCoordinates(sender As Object, e As ImageClickEventArgs)
mess.Text="Coordinates: " & e.x & ", " & e.y
End Sub
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim imagename as String = Request.QueryString("name")
Dim imagePath as String =Server.MapPath("/keller/portrait/" & imagename)
End Sub
</script>
<html>
<body>
<form runat="server">
<p>Click on the image:</p>
<asp:Image
runat="server"
ImageUrl="<%=iamgePath%>"
OnClick="getCoordinates"/>
<p><asp:label id="mess" runat="server"/></p>
</form>
</body>
</html>
The following update to your code will correctly show the image passed in with the QueryString.
<%@. page language="VB" debug="true" %>The only difference is that I gave the asp:Image control an ID, and used this ID in your Page_Load code to set its ImageUrl property.
<html>
<head>
<title>This is main Page</title>
<script runat="server"
Sub getCoordinates(sender As Object, e As ImageClickEventArgs)
mess.Text="Coordinates: " & e.x & ", " & e.y
End SubPrivate Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim imagename as String = Request.QueryString("name")
Dim imagePath As String = Server.MapPath("/keller/portrait/" & imagename & ".gif")
MyImage.ImageUrl = imagePath
End Sub</script>
<html>
<body>
<form runat="server">
<p>Click on the image:</p>
<asp:Image runat="server"
id="MyImage"
OnClick="getCoordinates" />
<p><asp:label id="mess" runat="server" /></p>
</form>
</body>
</html>
For details of how to get your imagemap working, see the following tutorial:
ImageMap.NET
I hope this helps.
Thanks for your help. I tried your script, The picture can be displayed correctly now, but when i click the picture, I got javascript error, it seems that function 'getCoordinates' does not execute at server instead it tries to run at client side. Here is url of the page:http://user1046822.wx15.registeredsite.com/keller/imagecrop_coodinates.aspx?name=test.jpg . Could you please tell me what is the problem? Thanks again.
> Could you please tell me what is the problem?
You've defined the problem yourself ... that getCoordinates tries to run at the client-side, not at the server.
Please go through the article I provided above. That will explain how to send click coordinates back to your server-side code.
