turn off auto-renaming of html elements' id in visual studio 2012 -

in situation when have conditional server code, visual studio keeps auto-renaming duplicate id's.

here's valid example:

<% if x = 1 %> <input type="hidden" id="hello" value=""/> <% else %> <input type="hidden" id="hello" value=""/> <% end if %>

when visual studio's live error checking finds this, change code without confirming me following:

<% if x = 1 %> <input type="hidden" id="hidden1" value=""/> <% else %> <input type="hidden" id="hidden2" value=""/> <% end if %>

how turn off? don't mind turning off whole live error checking even. don't know toggle "feature" though.

thank reading question,

go tools -> options

scroll down text editor. expand it, select html , expand it. click miscellaneous , should see following.

enter image description here

deselect first option , try it.

IO