/ Published in: jQuery
This is a pretty standard jQuery method to listen for the enter key and simply "click" the button. However, if you are using a LinkButton this code will not work. The reason for this is that a LinkButton is rendered to the browser as an Anchor tag with a href property that contains a javascript action to trigger the postback. Click does nothing on the button as there is nothing for it to complete.
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Copy this code and paste it in your HTML
$("#<%=txtPassword.ClientID %>").keydown(function(event) { if (event.keyCode == 13) { eval($("#<%=btnLogin.ClientID %>").attr('href')); } });
URL: http://www.mitchelsellers.com/blogs/2012/06/21/jquery-and-clicking-an-aspnet-linkbutton.aspx