ASP .NET - Submit on Enter - Prevent 'defaultbutton' when other button has focus

I have a search form consisting of the following...

<asp:Panel DefaultButton="btnSearch" ... >

    [...search criteria fields...]

    <asp:Button ID="btnReset" OnClick="btnReset_Click" ... />
    <asp:Button ID="btnSearch" OnClick="btnSearch_Click" ... />

</asp:Panel>

The desired behaviour is that pressing the Enter key should invoke btnSearch_Click (which is working thanks to the DefaultButton attribute in the asp:panel)

The problem is that when btnReset has focus, pressing Enter should invoke btnReset_Click instead (which it doesn't - it's always btnSearch).

Is this easily achievable somehow, or am I going to have to hack up some bespoke JS to intercept .NET's defaultButton event handler?

Thanks in advance.

---

ETA: Here's a reusable solution I went with based on HenryChuang's accepted answer below.

1. Add a custom attribute preventDefaultButton to panels.

   <asp:Panel DefaultButton="btnSearch" preventDefaultButton="btnReset" >
   
       [...search criteria fields...]
   
       <asp:Button ID="btnReset" OnClick="btnReset_Click" ... />        
       <asp:Button ID="btnSearch" OnClick="btnSearch_Click" ... />
   
   </asp:Panel>
   

2. Run the following jQuery on pageload.

   $("div[preventDefaultButton]").each(function () {
   
       var div = $(this);
       var keypressEvent = div.attr("onkeypress");
       var btn = $("input[id$=" + div.attr("preventDefaultButton") + "]");
   
       btn.on("focus", { div: div }, function (event) {
           event.data.div.attr("onkeypress", "");
       });
   
       btn.on("blur", { div: div, keypressEvent: keypressEvent }, function (event) {
           event.data.div.attr("onkeypress", event.data.keypressEvent);
       });
   
   });
   

see the panel generate html

<div id="yourPanelClientID" onkeypress="javascript:return WebForm_FireDefaultButton(event, 'btnSearch')">

so, when btnReset onfocus we break onkeypress event of Panel, add below to btnReset, remember when btnReset onblur, change Panel keypress to oringinal

onfocus="document.getElementById('yourPanelClientID').onkeypress = '';"
onblur="funA();"
function funA() {
        document.getElementById('yourPanelClientID').onkeypress = function () { return WebForm_FireDefaultButton(event, "btnSearch") };
    }

like this

 <asp:Button ID="btnReset"
 onfocus="document.getElementById('yourPanelClientID').onkeypress = '';" 
onblur="funA();"
onclick="btnReset_Click" .../>