javascript - How to add java script to the from user control button click event to parent page -

a link generate in user control button click event, want use clientscipt.registerstartupscript add javascript open link in new window. won't work.

if same code in user control parent page, work, question can somehow add script parent page , execute it.

var sb = new stringbuilder(); sb.append("<script type = 'text/javascript'>"); sb.append("window.open('"); sb.append(uri.absoluteuri); sb.append("');"); sb.append("</script>");  clientscript.registerstartupscript(this.gettype(), "script", sb.tostring()); 

please change sb.tostring() sb.tostring(). case matters.