<asp:Repeater ID="Repeater1" runat="server" 
        onitemdatabound="Repeater1_ItemDataBound">
    <ItemTemplate>
        <asp:RadioButtonList ID="RadioButtonList2" runat="server">
        <asp:ListItem Text="正常" Value="0"></asp:ListItem>
           <asp:ListItem Text="异常" Value="1"></asp:ListItem>
        </asp:RadioButtonList>
        <asp:HiddenField ID="HiddenField1" runat="server" Value='<%#Eval("state") %>' />
    </ItemTemplate>
    </asp:Repeater>

 protected void Repeater1_ItemDataBound(object sender, RepeaterItemEventArgs e)
    {
        RadioButtonList rbl = (RadioButtonList)e.Item.FindControl("RadioButtonList2");
        HiddenField hf = (HiddenField)e.Item.FindControl("HiddenField1");
        rbl.SelectedValue = hf.Value;
    }