可以:
ms-help://MS.NETFrameworkSDKv1.1.CHS/cpguidenf/html/cptsksettinglayoutinradiobuttonlistwebcontrol.htm
ms-help://MS.NETFrameworkSDKv1.1.CHS/cpguidenf/html/cptsksettinglayoutinradiobuttonlistwebcontrol.htm
ms-help://MS.NETFrameworkSDKv1.1.CHS/cpgenref/html/cpconradiobuttonlistwebservercontrol.htm
<asp:radiobuttonlist id="RadioButtonList1" runat="server" RepeatColumns="2" RepeatDirection="Horizontal">
AutoPostBack="True|False"
CellPadding="Pixels"
DataSource="<% databindingexpression %>"
DataTextField="DataSourceField"
DataValueField="DataSourceField"
RepeatColumns="ColumnCount"
RepeatDirection="Vertical|Horizontal"
RepeatLayout="Flow|Table"
TextAlign="Right|Left"
OnSelectedIndexChanged="OnSelectedIndexChangedMethod"
runat="server"> <asp:ListItem Text="label"
Value="value"
Selected="True|False" /></asp:RadioButtonList>
<asp:listitem Text="1" Selected="true"/>
<asp:listitem Text="2"/>
<asp:listitem Text="3"/>
<asp:listitem Text="4"/>
</asp:radiobuttonlist>
用RepeatColumns="5" 就可以