我的任务是为我们的 Web 项目的多个区域实现日期/时间选择器，并指示使用另一个开发人员创建的控件作为其中的一部分。我正在处理的控件应该允许用户从日历中选择日期，选择显示该日期的格式（从几种预定义的格式中，或使用简单的文本覆盖）以及可选的时间字符串（这实际上只是自由格式的文本）。
我被指示使用的控件记录在这里：http ://www.west-wind.com/WebLog/posts/213015.aspx ，并使用来自 jQuery 的 DatePicker。
在我实现我的控件并对其进行测试之后，我开始将它集成到需要日期和/或时间输入的页面中。在我对这些实现的测试中，我发现了一个错误：当我在一个页面上包含我的控件的多个副本时，只有第一个获得 jQuery 日历。其他的与它无关。
我已经尝试了一个看似相关的问题（标题为“复制 jquery datepicker”）中建议的一些方法，例如通过 $( "css-selector").datepicker() 语法，并且 ASP.NET 保证所有文本框的唯一 ID。
所以，总而言之，它看起来像这样：
<page>
<mycontrol>
<west-windjQuerycontrol />
</mycontrol>
<mycontrol>
<west-windjQuerycontrol />
</mycontrol>
</page>
现在，奇怪的部分：当页面上有多个西风控件的副本时，没有其他用户控件包含它们，它们可以正常工作。除了 jQuery 控件，我的控件没有什么特别之处：简单的标签、文本框、面板和下拉菜单。将 West-Wind jQuery 控件捆绑到用户控件中的某些东西似乎正在破坏它。
有什么建议吗？一段时间以来，由于我糟糕的 javascript 技能和对 jQuery 的有限接触，我一直在努力解决这个问题。
正如下面所指出的，没有 HTML 就很难说。我已经把它包括在下面了。
<form name="form1" method="post" action="ControlTest.aspx" id="form1">
<div>
<input type="hidden" name="__EVENTTARGET" id="__EVENTTARGET" value="" />
<input type="hidden" name="__EVENTARGUMENT" id="__EVENTARGUMENT" value="" />
<input type="hidden" name="__LASTFOCUS" id="__LASTFOCUS" value="" />
<input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value="/wEPDwUKLTU4NjEzMDEwOQ9kFgICAw9kFgQCAw9kFgRmD2QWAgIDD2QWAgIDDxBkZBYBZmQCAg9kFgICAw9kFgICAQ8QZGQWAWZkAgUPZBYEZg9kFgICAw9kFgICAw8QZGQWAWZkAgIPZBYCAgMPZBYCAgEPEGRkFgFmZGRDjfLpdb+XxaVaQYP2XkPil2Galw==" />
</div>
<script type="text/javascript">
//<![CDATA[
var theForm = document.forms['form1'];
if (!theForm) {
theForm = document.form1;
}
function __doPostBack(eventTarget, eventArgument) {
if (!theForm.onsubmit || (theForm.onsubmit() != false)) {
theForm.__EVENTTARGET.value = eventTarget;
theForm.__EVENTARGUMENT.value = eventArgument;
theForm.submit();
}
}
//]]>
</script>
<script src="/SSO/DE/WebResource.axd?d=jMPpL-KK8_mPj_ssZzGblw2&t=633481894229838141" type="text/javascript"></script>
<script src="/SSO/DE/ScriptResource.axd?d=8KwRIGaNAD3hi2Loz3YV-uxgrdZpGe8nnwH5E3gxLW_lQpnYjRbyIYThTnHtD9rt0&t=633613004148118290" type="text/javascript"></script>
<script src="/SSO/DE/ScriptResource.axd?d=8KwRIGaNAD3hi2Loz3YV-uxgrdZpGe8nnwH5E3gxLW-K0Kuw-pGK1O3mE_r1y3sjKmhHtQjSXeMtYSim0bjyGA2&t=633613004148118290" type="text/javascript"></script>
<script src="/SSO/DE/ScriptResource.axd?d=Id5yAacLMZHF7TWlkgrrid30ZStmsXuLHcF6WQ404YLySP4Itj4qxv2wi9ffbsWQA86oLdnZPWkwDnu4NKxfG1Ue7qdGG1SbOfb4ooHVs7M1&t=633481957084709567" type="text/javascript"></script>
<script type="text/javascript">
//<![CDATA[
if (typeof(Sys) === 'undefined') throw new Error('ASP.NET Ajax client-side framework failed to load.');
//]]>
</script>
<script src="/SSO/DE/ScriptResource.axd?d=Id5yAacLMZHF7TWlkgrrid30ZStmsXuLHcF6WQ404YLySP4Itj4qxv2wi9ffbsWQhT3MFELBAa2rFJZXnSlYAZIN7RT1npcBxJRsWGjJWIwTF0Es1m0vOd-xYnFqWJKz0&t=633481957084709567" type="text/javascript"></script>
<div style="margin:25px 10px;width:100%;">
<script type="text/javascript">
//<![CDATA[
Sys.WebForms.PageRequestManager._initialize('stupidThing', document.getElementById('form1'));
Sys.WebForms.PageRequestManager.getInstance()._updateControls([], [], [], 90);
//]]>
</script>
<div id="datePicker_Div0" class="AdminRowOdd DERow">
<div id="datePicker_Div1" class="DELabel">
<span id="datePicker_DateLabel">Date</span>
</div>
<div id="datePicker_Div2" class="DEInput datePicker">
<input name="datePicker$DateSelector" type="text" onchange="javascript:setTimeout('__doPostBack(\'datePicker$DateSelector\',\'\')', 0)" onkeypress="if (WebForm_TextBoxKeyHandler(event) == false) return false;" id="datePicker_DateSelector" style="width:80px;" />
<select name="datePicker$languageSelector" onchange="javascript:setTimeout('__doPostBack(\'datePicker$languageSelector\',\'\')', 0)" id="datePicker_languageSelector">
<option selected="selected" value="en-US">en-US</option>
<option value="fr-CA">fr-CA</option>
<option value="fr-FR">fr-FR</option>
<option value="es-ES">es-ES</option>
<option value="es-MX">es-MX</option>
</select>
</div>
</div>
<div id="datePicker_Div3" class="AdminRowEven DERow">
<div id="datePicker_Div4" class="DELabel">
<span id="datePicker_FormatChoiceLabel">Choose your display format: </span>
</div>
<div id="datePicker_Div5" class="DEInput">
<select name="datePicker$DateFormatSelector" onchange="javascript:setTimeout('__doPostBack(\'datePicker$DateFormatSelector\',\'\')', 0)" id="datePicker_DateFormatSelector">
<option selected="selected" value="Choose a date first">Choose a date first</option>
</select>
</div>
</div>
<div id="datePicker_Div6" class="AdminRowOdd DERow">
<div id="datePicker_Div7" class="DELabel">
<span id="datePicker_FormatOverrideLabel">Or enter your own text</span>
</div>
<div id="datePicker_Div8" class="DEInput">
<input name="datePicker$DateFormatOverride" type="text" onchange="javascript:setTimeout('__doPostBack(\'datePicker$DateFormatOverride\',\'\')', 0)" onkeypress="if (WebForm_TextBoxKeyHandler(event) == false) return false;" id="datePicker_DateFormatOverride" />
</div>
</div>
<br />
<div id="date1_Div0" class="AdminRowOdd DERow">
<div id="date1_Div1" class="DELabel">
<span id="date1_DateLabel">Date</span>
</div>
<div id="date1_Div2" class="DEInput datePicker">
<input name="date1$DateSelector" type="text" onchange="javascript:setTimeout('__doPostBack(\'date1$DateSelector\',\'\')', 0)" onkeypress="if (WebForm_TextBoxKeyHandler(event) == false) return false;" id="date1_DateSelector" style="width:80px;" />
<select name="date1$languageSelector" onchange="javascript:setTimeout('__doPostBack(\'date1$languageSelector\',\'\')', 0)" id="date1_languageSelector">
<option selected="selected" value="en-US">en-US</option>
<option value="fr-CA">fr-CA</option>
<option value="fr-FR">fr-FR</option>
<option value="es-ES">es-ES</option>
<option value="es-MX">es-MX</option>
</select>
</div>
</div>
<div id="date1_Div3" class="AdminRowEven DERow">
<div id="date1_Div4" class="DELabel">
<span id="date1_FormatChoiceLabel">Choose your display format:</span>
</div>
<div id="date1_Div5" class="DEInput">
<select name="date1$DateFormatSelector" onchange="javascript:setTimeout('__doPostBack(\'date1$DateFormatSelector\',\'\')', 0)" id="date1_DateFormatSelector">
<option selected="selected" value="Choose a date first">Choose a date first</option>
</select>
</div>
</div>
<div id="date1_Div6" class="AdminRowOdd DERow">
<div id="date1_Div7" class="DELabel">
<span id="date1_FormatOverrideLabel">Or enter your own text</span>
</div>
<div id="date1_Div8" class="DEInput">
<input name="date1$DateFormatOverride" type="text" onchange="javascript:setTimeout('__doPostBack(\'date1$DateFormatOverride\',\'\')', 0)" onkeypress="if (WebForm_TextBoxKeyHandler(event) == false) return false;" id="date1_DateFormatOverride" />
</div>
</div>
</div>
<div>
<input type="hidden" name="__EVENTVALIDATION" id="__EVENTVALIDATION" value="/wEWFQLr6MeTCwKb1Zr0AwKVt6utCQKIwaTjAQKdwYzzBwLiwsDhDQKIwdCLBAKHwbCtCgLRr42cCQKi9vj4DgK2lM6kBQLLrsUtAsaboRMC2+2u3QgCzu2GzQ4Cse7K3wQC2+3atQ0C1O26kwMCpdTivwwC1o2X2wsCoubqnQk8I1BK30Q/iVw/rExUww2Cs4bicw==" />
</div>
<script type="text/javascript">
//<![CDATA[
jQuery(document).ready( function() {
var cal = jQuery('#datePicker_DateSelector').datepicker({yearRange: '-1500:+100',dateFormat: 'm/d/yy'});
} );
Sys.Application.initialize();
//]]>
</script>
</form>