Developer Guide
aspx:FieldRadioPicklist

    This is a HTML input element that renders a group of HTML radio buttons, shows picklist values as radio buttons, and allows the user to have one selection.

    <aspx:FieldRadioPicklist runat='server' value='{!Model.FoodChoice__c}' />


    You can populate the options declaratively:

    <aspx:FieldRadioPicklist runat='server' value='{!Model.FoodChoice__c}'>
      <items>
        <asp:ListItem text="Pizza" value="1"/>
        <asp:ListItem text="Burger" value="2"/>
      </items>
    </aspx:FieldRadioPicklist>
    


    You also load the option from values stored in Model or DataBag:

    <aspx:FieldRadioPicklist runat='server' value='{!Model.FoodChoice__c}' DataSource='<%# DataBag.Foods %>' DataTextField='Name' DataValueField='Id'>
    </aspx:FieldRadioPicklist>