<com:TContent ID="Content"> <h2 class="defect">TRadioButton always postback if AutoPostBack=true</h2> <com:TRadioButton ID="button1" AutoPostBack="true" OnCheckedChanged="doClick" /> <com:TLabel ForControl="button1" Text="radio button 1" /> <br> <com:TLabel ID="label1" /> </com:TContent>