水平滚动溢出

我在gridview内实现了 selected 下拉列表。gridview位于一个由div组成的方框内。

我希望它能够打开而不受网格本身的限制。我可以通过将overflow-x:visible !important;添加到网格样式中来做到这一点。

我希望网格有水平滚动能力太。我将overflow:auto;添加到网格中。

但是我不能两者兼顾。如果我做第一个并使下拉框可见，网格就会在框上，滚动就不能再工作了。如果我做另一个，下拉框就会落在网格后面。

有办法两者兼得吗?请随意使用下面这个样品给我看看。原谅并忽略代码的污秽。

https://jsfiddle.net/tqpxqose/

<table cellspacing="0" id="ContentPlaceHolder1_grdInfo" style="width:100%;border-collapse:collapse;">
    <tbody>
        <tr style="height:50px;">
            <td>
                <select name="ctl00$ContentPlaceHolder1$grdInfo$ctl02$ddlItemHistory" id="ddlItemHistory" class="chzn-select chzn-done" style="display: none; background-color: rgb(128, 0, 128);">
                    <option value="27/10/2016 - Lorem ipsum dolor sit amet ">27/10/2016 -Lorem ipsum dolor sit amet </option>
                    <option value="14/09/2016 - Lorem ipsum dolor sit amet Lorem ipsum dolor sit amet ">14/09/2016 - Lorem ipsum dolor sit amet </option>
                    <option value="29/06/2016 - ILorem ipsum dolor sit amet Lorem ipsum dolor sit amet Lorem ipsum dolor sit amet ">29/06/2016 - Integration in UAT</option>
                    <option value="24/06/2016 -  Lorem ipsum dolor sit amet Lorem ipsum dolor sit amet Lorem ipsum dolor sit amet Lorem ipsum dolor sit amet ">24/06/2016 - Lorem ipsum dolor sit amet Lorem ipsum dolor sit amet Lorem ipsum dolor sit amet Lorem ipsum dolor sit amet Lorem ipsum dolor sit amet </option>
                    <option value="23/06/2016 - Lorem ipsum dolor sit amet Lorem ipsum dolor sit amet ">23/06/2016 - Lorem ipsum dolor sit amet Lorem ipsum dolor sit amet </option>
                    <option value="13/02/2015 - Lorem ipsum dolor sit amet Lorem ipsum dolor sit amet Lorem ipsum dolor sit amet Lorem ipsum dolor sit amet Lorem ipsum dolor sit amet ">13/02/2015 - Lorem ipsum dolor sit amet Lorem ipsum dolor sit amet Lorem ipsum dolor sit amet </option>
                    <option value="11/02/2015 - Lorem ipsum dolor sit amet Lorem ipsum dolor sit amet Lorem ipsum dolor sit amet Lorem ipsum dolor sit amet Lorem ipsum dolor sit amet ">11/02/2015 - Lorem ipsum dolor sit amet Lorem ipsum dolor sit amet Lorem ipsum dolor sit amet Lorem ipsum dolor sit amet </option>
                </select>
                <div id="ddlItemHistory_chzn" class="chzn-container chzn-container-single chzn-container-active" style="width: 876px;" title=""><a href="javascript:void(0)" class="chzn-single chzn-single-with-drop" tabindex="-1"><span>27/10/2016 - Lorem ipsum dolor sit amet</span><div><b></b></div></a>
                    <div class="chzn-drop" style="left: 0px; width: 874px; top: 24px;">
                        <div class="chzn-search">
                            <input type="text" autocomplete="off" style="width: 839px;">
                        </div>
                        <ul class="chzn-results">
                            <li id="ddlItemHistory_chzn_o_0" class="active-result result-selected" style="">27/10/2016 - Lorem ipsum dolor sit amet</li>
                            <li id="ddlItemHistory_chzn_o_1" class="active-result" style="">14/09/2016 - Lorem ipsum dolor sit amet </li>
                            <li id="ddlItemHistory_chzn_o_2" class="active-result" style="">29/06/2016 - Lorem ipsum dolor sit amet Lorem ipsum dolor sit amet </li>
                            <li id="ddlItemHistory_chzn_o_3" class="active-result" style="">24/06/2016 - Lorem ipsum dolor sit amet Lorem ipsum dolor sit amet Lorem ipsum dolor sit amet
                                Lorem ipsum dolor sit amet Lorem ipsum dolor sit amet (</li>
                            <li id="ddlItemHistory_chzn_o_4" class="active-result" style="">23/06/2016 - Lorem ipsum dolor sit amet Lorem ipsum dolor sit amet </li>
                            <li id="ddlItemHistory_chzn_o_5" class="active-result" style="">13/02/2015 - Lorem ipsum dolor sit amet Lorem ipsum dolor sit amet Lorem ipsum dolor sit amet
                                </li>
                            <li id="ddlItemHistory_chzn_o_6" class="active-result" style="">11/02/2015 - Lorem ipsum dolor sit amet Lorem ipsum dolor sit amet Lorem ipsum dolor sit amet
                                Lorem ipsum dolor sit amet </li>
                        </ul>
                    </div>
                </div>
                <script type="text/javascript">
                            $(".chzn-select").chosen();
                            $(".chzn-select-deselect").chosen({
                            allow_single_deselect: true
                            });
                        </script>
                <script type="text/javascript">
                            $('#ddlItemHistory').css("background-color", "purple");
                            $("select").change(function() {
                            $('#ddlItemHistory').css('color', "yellow");
                            });
                        </script>
            </td>
            <td>
                <span id="ContentPlaceHolder1_grdInfo_lblDocumentsOutstanding_0">TestTestTest</span>
            </td>
            <td>
                <span id="ContentPlaceHolder1_grdInfo_lblDateCreated_0">20/06/2016 17:49:10</span>
            </td>
            <td>
                <span id="ContentPlaceHolder1_grdInfo_lblUserCreated_0">HakanErdogan</span>
            </td>
        </tr>
    </tbody>
</table>

<select style="position:absolute" name="ctl00$ContentPlaceHolder1$grdInfo$ctl02$ddlItemHistory" id="ddlItemHistory" class="chzn-select chzn-done" style="display: none; background-color: rgb(128, 0, 128);">