Question

how do i validate dynamic textboxes which are generated at runtime using jQuery?

Answer 1

<%    
        TextBox tb = new TextBox();
        tb.Attributes.Add("data-validateme","true");
        Page.Controls.Add(tb);
%>

Which will add an HTML5 data attribute.

<input type="text" data-validateme="true" />

jQuery:

$(document).ready(function(){
   $("*[data-validateme]").change(function(){
      alert($(this).val());
   });
});