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    <p>As pointed out by others, UpdatePanel would be a easier way - but you need to use multiple update panels with <a href="http://msdn.microsoft.com/en-us/library/system.web.ui.updatepanel.updatemode.aspx" rel="nofollow">UpdateMode</a> property set as <code>conditional</code>. Then you can trigger the update-panel refresh using any button on the page (see <a href="http://msdn.microsoft.com/en-us/library/system.web.ui.asyncpostbacktrigger.aspx" rel="nofollow">AsyncPostBackTrigger</a>) or even using java-script (see <a href="http://encosia.com/2007/07/13/easily-refresh-an-updatepanel-using-javascript/" rel="nofollow">this</a> &amp; <a href="http://codeclimber.net.nz/archive/2007/06/26/How-to-refresh-an-UpdatePanel-from-javascript.aspx" rel="nofollow">this</a>). On the server side, you may decide what has triggered the partial post-back and act accordingly by bypassing certain code if not needed.</p> <p>You can also go with your approach - trick here is to capture the page output using <a href="http://msdn.microsoft.com/en-us/library/yw97w238.aspx" rel="nofollow">HttpServerUtility.Execute</a> in your ashx and write it back into the response (see <a href="http://weblogs.asp.net/scottgu/archive/2006/10/22/Tip_2F00_Trick_3A00_-Cool-UI-Templating-Technique-to-use-with-ASP.NET-AJAX-for-non_2D00_UpdatePanel-scenarios.aspx" rel="nofollow">this article</a> where this trick has been used to capture user control output). Only limitation with this approach is that you can only simulate GET requests to your page and so you may have to change your page to accept parameters via query string. Personally, I will suggest that you create a user control that accept parameters via method/properties and will generate necessary output and then use the control on your page and in ashx (by dynmaically loading it in a temperory page - <a href="http://samuelmueller.com/2008/12/dynamicloader-plugin-dynamically-loading-asp-net-user-controls-with-jquery/" rel="nofollow">see this article</a>).</p> <p>EDIT: I am using jquery to illustrate how to do it from grid-row-view.</p> <pre><code>$(document).ready(function() { $("tr.ajax-grid-row").click(function() { $("#hidden-field-id").val($(this).find(".row-id").val()); // fill hidden filed $("#hidden-button-id").click(); // simulate button click }); }); </code></pre> <p>You can place above script in the head element in markup - it is assuming that you have decorated each grid-row-view with css class "ajax-grid-row" and each row will have hidden field decorated with css class "row-id" to store row identifier or the value that you want to pass to server for that row. You can also use cell (but then you need to use innerHTML to get the value per row). "hidden-field-id" and "hidden-button-id" are client ids for hidden field and submit button - you should use <code>Control.ClientID</code> to get actual control ids if those are server controls.</p>
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    1. COThank you for the help: Still trying madly to implement your first suggestion, but there are complications. One is that the controls are dynamically generated, and another is that they are not normal buttons. They are rows in a grid view, and each row has to send a different parameter to whatever subroutine will be controlling the refresh. So far all I have is `For Each drRow as GridViewRow in MyGridView: Dim trigger As System.Web.UI.AsyncPostBackTrigger = New System.Web.UI.AsyncPostBackTrigger(): scriptManager1.RegisterAsyncPostBackControl(drRow)`
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    2. COBut how do I dynamically add a click handler to a GridViewRow (which has no ".Click" attribute), and then what goes in the javascript on the client side? Please help if you can! I'm still very confused!
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    3. CO@Noel, you are probably doing it in a hard way. What you should do is to have a hidden field and hidden ASP.NET submit button in UpdatePanel. Now all you have to do is to write java-script to fill the hidden field to tell which row and then simulate the click of button. Please see edit in my answer. Hope this helps!
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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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