Jquery get values of all checked rows in table gridview

Answer 1

I want to retrieve (using jquery) a javascript array of all checked ID's in the table.

Try:

var ids = $("#mytable tr:has(input:checked)").map(function() {
   var $tr = $(this);
   var id = $tr.find("td:last").text();
   return id;
}).toArray();

alert(ids.join(", "));