<asp:ID de campo oculto="IsSelected" runat="servidor" />

 window. Onload = function() { var IsSelected= Dom.get("FieldControl_emails_0_IsSelected"); if((IsSelected !='undefined')) IsSelected.value='True' var isBlankRadioButton = Dom.get("IsBlankRadioButton"); var isNotBlankRadioButton = Dom.get("IsNotBlankRadioButton"); if(isBlankRadioButton !='undefined' || isBlankRadioButton. Checked ||(isNotBlankRadioButton != 'undefined' || isNotBlankRadioButton. Checked)) };

Alguien me puede ayudar a resolver el problema