Client-Server passing values problem. Caution: some HTML

  • Thread starter Thread starter Roger Helliwell
  • Start date Start date
R

Roger Helliwell

Hopefully someone can help me with this problem I'm having with client-server
communication.

I have a large image which is subdivided into clickable areas. When the user
clicks an area, I need the server to perform work on whatever image slice was
clicked on. For example the image tag in my HTML would look something like this:

<area shape="RECT" coords="319,219,367,232" href="ProcessArea.aspx?ImageID=1">
<area shape="RECT" coords="317,238,368,254" href="ProcessArea.aspx?ImageID=2">
<area shape="RECT" coords="310,261,371,301" href="ProcessArea.aspx?ImageID=3">
etc.

I'm passing an identifier that represents which area was clicked in the URL.

Now I need My ProcessArea class to detect which image slice was clicked on.
Such logic could go in my Page_Load() method, but how do I parse out the value?

Any help is appreciated. I'm looked high on low in the System.Web.UI.Page docs
and found nothing yet. (And I'm sure the solution is probably a simple one. :)

Roger
 
Hi Roger,

If I understand your problem correctly, you would use the request object to
cull out the information

Request.Querystring("ImageID")

this should give you the Image ID that was clicked.

HTH
-Diwakar
 
Diwakar R said:
Hi Roger,

If I understand your problem correctly, you would use the request object to
cull out the information

Request.Querystring("ImageID")

this should give you the Image ID that was clicked.

HTH
Click to expand...

Exactly what I was looking for. Thanks a million.
 
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