or

I have an ASP.Net RadioButtonList control with AutoPostBack set to true and a server side handler for the SelectedIndexChanged event.
<asp:RadioButtonList runat="server" ID="btnAcceptReject" RepeatDirection="Horizontal" CssClass="checkboxlist borderless" ValidationGroup="data" AutoPostBack="true" OnSelectedIndexChanged="radioButtonList_SelectedIndexChanged"><asp:ListItem Text="The edition is hereby validated for conformity to standards" Value="0" Selected="True"></asp:ListItem> <asp:ListItem Text="The edition does not meet standards and still has to be reviewed" Value="1"></asp:ListItem></asp:RadioButtonList><telerik:RadAjaxManagerProxy runat="server" ID="RadAjaxManagerPRoxy1"><AjaxSettings><telerik:AjaxSetting AjaxControlID="btnAcceptReject"><UpdatedControls><telerik:AjaxUpdatedControl ControlID="pnlControls" /></UpdatedControls> </telerik:AjaxSetting><br></AjaxSettings>pnlControl is a panel on the page containing controls that will be enabled/disabled depending on which radio button was checked.
the RadAjaxManager never seems to catch the submit event, the above always performs a full postback when one of the radio button of the group is clicked.