我有一个开发C＃.Net的webbrowser桌面应用程序
我使用webbrowser组件
我访问了一个有一些RadDatePicker控件的网站。
我需要从webbrowser app为RadDatePicker设置日期值。
您可以在下方看到HTML代码
<div id="ctl00_ContentHolder_calBirthDate_wrapper" class="RadPicker RadPicker_Simple" style="display:inline-block;width:100%;">
<!-- 2012.3.1308.35 --><input style="visibility:hidden;display:block;float:right;margin:0 0 -1px -1px;width:1px;height:1px;overflow:hidden;border:0;padding:0;" id="ctl00_ContentHolder_calBirthDate" name="ctl00$ContentHolder$calBirthDate" type="text" class="rdfd_ radPreventDecorate" value="" title="Visually hidden input created for functionality purposes."><table cellspacing="0" class="rcTable rcSingle" summary="Table holding date picker control for selection of dates." style="width:100%;">
<caption style="display:none;">
RadDatePicker
</caption><tbody><tr>
<td class="rcInputCell" style="width:100%;"><span id="ctl00_ContentHolder_calBirthDate_dateInput_wrapper" class="riSingle RadInput RadInput_Simple" style="display:block;width:100%;"><input id="ctl00_ContentHolder_calBirthDate_dateInput" name="ctl00$ContentHolder$calBirthDate$dateInput" class="riTextBox riEnabled" onchange="javascript:CalcAge('ctl00_ContentHolder_calBirthDate','ctl00_ContentHolder_txtAge')" onblur="javascript:ValidateMExist();" type="text"><input id="ctl00_ContentHolder_calBirthDate_dateInput_ClientState" name="ctl00_ContentHolder_calBirthDate_dateInput_ClientState" type="hidden" autocomplete="off" value="{"enabled":true,"emptyMessage":"","validationText":"","valueAsString":"","minDateStr":"0001-01-01-00-00-00","maxDateStr":"2016-12-31-00-00-00"}"></span></td><td><a title="open the calendar popup." href="#" id="ctl00_ContentHolder_calBirthDate_popupButton" class="rcCalPopup">open the calendar popup.</a><div id="ctl00_ContentHolder_calBirthDate_calendar_wrapper" style="display: none"><table id="ctl00_ContentHolder_calBirthDate_calendar" summary="Calendar control which enables the selection of dates." cellspacing="0" class="RadCalendar RadCalendar_Simple" border="0">
<caption>
<span style="display:none;">Calendar</span>
</caption><thead>
<tr>
<td class="rcTitlebar"><table cellspacing="0" summary="Title and navigation which can change and show the current year and month." border="0">
<caption>
<span style="display:none;">Title and navigation</span>
</caption><thead>
<tr style="display:none;">
<th scope="col"></th>
</tr>
</thead><tbody>
<tr>
<td><a id="ctl00_ContentHolder_calBirthDate_calendar_FNP" class="rcFastPrev" title="<<" href="#"><<</a></td><td><a id="ctl00_ContentHolder_calBirthDate_calendar_NP" class="rcPrev" title="<" href="#"><</a></td><td id="ctl00_ContentHolder_calBirthDate_calendar_Title" class="rcTitle">June 2016</td><td><a id="ctl00_ContentHolder_calBirthDate_calendar_NN" class="rcNext" title=">" href="#">></a></td><td><a id="ctl00_ContentHolder_calBirthDate_calendar_FNN" class="rcFastNext" title=">>" href="#">>></a></td>
</tr>
</tbody>
</table></td>
</tr>
</thead><tbody>
<tr>
<td class="rcMain"><table id="ctl00_ContentHolder_calBirthDate_calendar_Top" class="rcMainTable" cellspacing="0" summary="Table containing all dates for the currently selected month." border="0">
<caption>
<span style="display:none;">June 2016</span>
</caption><thead>
<tr class="rcWeek">
<th class="rcViewSel" scope="col"> </th><th id="ctl00_ContentHolder_calBirthDate_calendar_Top_cs_1" title="Sunday" scope="col" abbr="Sun">S</th><th id="ctl00_ContentHolder_calBirthDate_calendar_Top_cs_2" title="Monday" scope="col" abbr="Mon">M</th><th id="ctl00_ContentHolder_calBirthDate_calendar_Top_cs_3" title="Tuesday" scope="col" abbr="Tue">T</th><th id="ctl00_ContentHolder_calBirthDate_calendar_Top_cs_4" title="Wednesday" scope="col" abbr="Wed">W</th><th id="ctl00_ContentHolder_calBirthDate_calendar_Top_cs_5" title="Thursday" scope="col" abbr="Thu">T</th><th id="ctl00_ContentHolder_calBirthDate_calendar_Top_cs_6" title="Friday" scope="col" abbr="Fri">F</th><th id="ctl00_ContentHolder_calBirthDate_calendar_Top_cs_7" title="Saturday" scope="col" abbr="Sat">S</th>
</tr>
</thead><tbody>
<tr class="rcRow">
<th id="ctl00_ContentHolder_calBirthDate_calendar_Top_rs_1" scope="row">23</th><td class="rcOtherMonth" title="Sunday, May 29, 2016"><a href="#">29</a></td><td class="rcOtherMonth" title="Monday, May 30, 2016"><a href="#">30</a></td><td class="rcOtherMonth" title="Tuesday, May 31, 2016"><a href="#">31</a></td><td title="Wednesday, June 01, 2016"><a href="#">1</a></td><td title="Thursday, June 02, 2016"><a href="#">2</a></td><td title="Friday, June 03, 2016"><a href="#">3</a></td><td class="rcWeekend" title="Saturday, June 04, 2016"><a href="#">4</a></td>
</tr><tr class="rcRow">
<th id="ctl00_ContentHolder_calBirthDate_calendar_Top_rs_2" scope="row">24</th><td class="rcWeekend" title="Sunday, June 05, 2016"><a href="#">5</a></td><td title="Monday, June 06, 2016"><a href="#">6</a></td><td title="Tuesday, June 07, 2016"><a href="#">7</a></td><td title="Wednesday, June 08, 2016"><a href="#">8</a></td><td title="Thursday, June 09, 2016"><a href="#">9</a></td><td title="Friday, June 10, 2016"><a href="#">10</a></td><td class="rcWeekend" title="Saturday, June 11, 2016"><a href="#">11</a></td>
</tr><tr class="rcRow">
<th id="ctl00_ContentHolder_calBirthDate_calendar_Top_rs_3" scope="row">25</th><td class="rcWeekend" title="Sunday, June 12, 2016"><a href="#">12</a></td><td title="Monday, June 13, 2016"><a href="#">13</a></td><td title="Tuesday, June 14, 2016"><a href="#">14</a></td><td title="Wednesday, June 15, 2016"><a href="#">15</a></td><td title="Thursday, June 16, 2016"><a href="#">16</a></td><td title="Friday, June 17, 2016"><a href="#">17</a></td><td class="rcWeekend" title="Saturday, June 18, 2016"><a href="#">18</a></td>
</tr><tr class="rcRow">
<th id="ctl00_ContentHolder_calBirthDate_calendar_Top_rs_4" scope="row">26</th><td class="rcWeekend" title="Sunday, June 19, 2016"><a href="#">19</a></td><td title="Monday, June 20, 2016"><a href="#">20</a></td><td title="Tuesday, June 21, 2016"><a href="#">21</a></td><td title="Wednesday, June 22, 2016"><a href="#">22</a></td><td title="Thursday, June 23, 2016"><a href="#">23</a></td><td title="Friday, June 24, 2016"><a href="#">24</a></td><td class="rcWeekend" title="Saturday, June 25, 2016"><a href="#">25</a></td>
</tr><tr class="rcRow">
<th id="ctl00_ContentHolder_calBirthDate_calendar_Top_rs_5" scope="row">27</th><td class="rcWeekend" title="Sunday, June 26, 2016"><a href="#">26</a></td><td title="Monday, June 27, 2016"><a href="#">27</a></td><td title="Tuesday, June 28, 2016"><a href="#">28</a></td><td title="Wednesday, June 29, 2016"><a href="#">29</a></td><td title="Thursday, June 30, 2016"><a href="#">30</a></td><td class="rcOtherMonth" title="Friday, July 01, 2016"><a href="#">1</a></td><td class="rcOtherMonth" title="Saturday, July 02, 2016"><a href="#">2</a></td>
</tr><tr class="rcRow">
<th id="ctl00_ContentHolder_calBirthDate_calendar_Top_rs_6" scope="row">28</th><td class="rcOtherMonth" title="Sunday, July 03, 2016"><a href="#">3</a></td><td class="rcOtherMonth" title="Monday, July 04, 2016"><a href="#">4</a></td><td class="rcOtherMonth" title="Tuesday, July 05, 2016"><a href="#">5</a></td><td class="rcOtherMonth" title="Wednesday, July 06, 2016"><a href="#">6</a></td><td class="rcOtherMonth" title="Thursday, July 07, 2016"><a href="#">7</a></td><td class="rcOtherMonth" title="Friday, July 08, 2016"><a href="#">8</a></td><td class="rcOtherMonth" title="Saturday, July 09, 2016"><a href="#">9</a></td>
</tr>
</tbody>
</table></td>
</tr>
</tbody>
</table><input type="hidden" name="ctl00_ContentHolder_calBirthDate_calendar_SD" id="ctl00_ContentHolder_calBirthDate_calendar_SD" value="[]"><input type="hidden" name="ctl00_ContentHolder_calBirthDate_calendar_AD" id="ctl00_ContentHolder_calBirthDate_calendar_AD" value="[[1,1,1],[2016,12,31],[2016,6,23]]"></div></td>
</tr>
</tbody></table><input id="ctl00_ContentHolder_calBirthDate_ClientState" name="ctl00_ContentHolder_calBirthDate_ClientState" type="hidden" value="{"minDateStr":"0001-01-01-00-00-00","maxDateStr":"2016-12-31-00-00-00"}" autocomplete="off">
</div>
在webbrowser应用程序中，我尝试访问dom元素并设置日期值 但是我得到了一些像 ＆＃34;对象不支持属性或方法＆＃39; set_selectedDate＆＃39;＆＃34;
我们如何解决问题？
HtmlElement head = browser.Document.GetElementsByTagName("head")[0];
HtmlElement scriptEl = browser.Document.CreateElement("script");
IHTMLScriptElement scriptElement = (IHTMLScriptElement)scriptEl.DomElement;
scriptElement.text += " function setDate(){ window.frames[0].$('#ctl00_ContentHolder_calBirthDate_dateInput').set_selectedDate(new Date('2020/10/12')) } ";
head.AppendChild(scriptEl);
browser.Document.InvokeScript("setDate");
答案 0 :(得分：0)
解决
HtmlElement head = browser.Document.GetElementsByTagName("head")[0];
HtmlElement scriptEl = browser.Document.CreateElement("script");
IHTMLScriptElement scriptElement = (IHTMLScriptElement)scriptEl.DomElement;
scriptElement.text += "function setDate(datePicker, day, month, year) { var date = new Date(year, month-1, day); $find(datePicker).set_selectedDate(date); }";
head.AppendChild(scriptEl);
DateTime birthDate = Convert.ToDateTime(user["BirthDay"]);
browser.Document.InvokeScript("setDate", new object[] { "ctl00_ContentHolder_calBirthDate", birthDate.Day, birthDate.Month, birthDate.Year });
Thread.Sleep(500);