checkbox checked in asp.net

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checkbox

var senderTitle11 = $(sender).attr("title11");
           $(".RoomActiveCkb").prop("checked", "True");

in var sendertitel11 store the value true or false set and i can find the sendertitel11 value in .cs file

And this value set in table checkbox how to set?

<tr>
                                <td align="right">
                                    RoomActive :
                                </td>
                                <td>
                                    <asp:CheckBox ID="RoomActiveCkb" CssClass="RoomActiveCkb" runat="server"  />
                                </td>
                            </tr>

run the page but not checkbox checked when value is true
and above table is open inside one simple popup