如何在选中的表格中设置复选框？

Question

我有一个表，我有我想设置为选中的复选框的id ，但我不能这样做，我不知道为什么。

我尝试这样做，但没有任何反应，而且我没有任何错误消息：

 $('#medicalListTable input.type_checkbox[id="sindicate-345"]').prop('checked', true); $('input.type_checkbox[id="sindicate-345"]').prop('checked', true); $('input.type_checkbox[id="sindicate-345"]').attr('checked', true);

 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <table id="medicalListTable" class="display responsive nowrap dataTable no-footer" cellspacing="0" width="100%" role="grid" aria-describedby="medicalListTable_info" style="width: 100%;"> <thead> <tr role="row"> <th class="sorting ui-state-default sorting_asc" tabindex="0" aria-controls="medicalListTable" rowspan="1" colspan="1" aria-sort="ascending" aria-label="Id empleado: activate to sort column descending" style="width: 134px;"> <div class="DataTables_sort_wrapper">Id empleado<span class="DataTables_sort_icon css_right ui-icon ui-icon-triangle-1-n"></span></div> </th> <th class="sorting ui-state-default" tabindex="0" aria-controls="medicalListTable" rowspan="1" colspan="1" aria-label="Nombre: activate to sort column ascending" style="width: 174px;"> <div class="DataTables_sort_wrapper">Nombre<span class="DataTables_sort_icon css_right ui-icon ui-icon-caret-2-ns"></span></div> </th> <th class="sorting ui-state-default" tabindex="0" aria-controls="medicalListTable" rowspan="1" colspan="1" aria-label="Apellidos: activate to sort column ascending" style="width: 329px;"> <div class="DataTables_sort_wrapper">Apellidos<span class="DataTables_sort_icon css_right ui-icon ui-icon-caret-2-ns"></span></div> </th> <th class="sorting ui-state-default" tabindex="0" aria-controls="medicalListTable" rowspan="1" colspan="1" aria-label="Seleccionar: activate to sort column ascending" style="width: 125px;"> <div class="DataTables_sort_wrapper">Seleccionar<span class="DataTables_sort_icon css_right ui-icon ui-icon-caret-2-ns"></span></div> </th> </tr> </thead> <tbody> <tr role="row" class="odd"> <td class="vehicleId sorting_1">345</td> <td class="model">NAME</td> <td class="model">SURNAME</td> <td> <input type="checkbox" id="sindicate-345"> </td> </tr> </tbody> </table>

Answer 1

元素上没有type_checkbox类。 我认为您打算使用这样的属性选择器：

$('#medicalListTable input[type="checkbox"][id="sindicate-345"]').prop('checked', true);

但是，如果元素上有一个id ，它在 DOM 中应该是唯一的，因此这是您需要使用的唯一选择器：

$('#sindicate-345').prop('checked', true);

 $('#sindicate-345').prop('checked', true);

 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <table id="medicalListTable" class="display responsive nowrap dataTable no-footer" cellspacing="0" width="100%" role="grid" aria-describedby="medicalListTable_info" style="width: 100%;"> <thead> <tr role="row"> <th class="sorting ui-state-default sorting_asc" tabindex="0" aria-controls="medicalListTable" rowspan="1" colspan="1" aria-sort="ascending" aria-label="Id empleado: activate to sort column descending" style="width: 134px;"> <div class="DataTables_sort_wrapper">Id empleado<span class="DataTables_sort_icon css_right ui-icon ui-icon-triangle-1-n"></span></div> </th> <th class="sorting ui-state-default" tabindex="0" aria-controls="medicalListTable" rowspan="1" colspan="1" aria-label="Nombre: activate to sort column ascending" style="width: 174px;"> <div class="DataTables_sort_wrapper">Nombre<span class="DataTables_sort_icon css_right ui-icon ui-icon-caret-2-ns"></span></div> </th> <th class="sorting ui-state-default" tabindex="0" aria-controls="medicalListTable" rowspan="1" colspan="1" aria-label="Apellidos: activate to sort column ascending" style="width: 329px;"> <div class="DataTables_sort_wrapper">Apellidos<span class="DataTables_sort_icon css_right ui-icon ui-icon-caret-2-ns"></span></div> </th> <th class="sorting ui-state-default" tabindex="0" aria-controls="medicalListTable" rowspan="1" colspan="1" aria-label="Seleccionar: activate to sort column ascending" style="width: 125px;"> <div class="DataTables_sort_wrapper">Seleccionar<span class="DataTables_sort_icon css_right ui-icon ui-icon-caret-2-ns"></span></div> </th> </tr> </thead> <tbody> <tr role="row" class="odd"> <td class="vehicleId sorting_1">345</td> <td class="model">NAME</td> <td class="model">SURNAME</td> <td> <input type="checkbox" id="sindicate-345"> </td> </tr> </tbody> </table>

Answer 2

由于属性id在文档中是唯一的，您可以简单地使用它：

 $('#sindicate-345').attr('checked', true);

 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <table id="medicalListTable" class="display responsive nowrap dataTable no-footer" cellspacing="0" width="100%" role="grid" aria-describedby="medicalListTable_info" style="width: 100%;"> <thead> <tr role="row"> <th class="sorting ui-state-default sorting_asc" tabindex="0" aria-controls="medicalListTable" rowspan="1" colspan="1" aria-sort="ascending" aria-label="Id empleado: activate to sort column descending" style="width: 134px;"> <div class="DataTables_sort_wrapper">Id empleado<span class="DataTables_sort_icon css_right ui-icon ui-icon-triangle-1-n"></span></div> </th> <th class="sorting ui-state-default" tabindex="0" aria-controls="medicalListTable" rowspan="1" colspan="1" aria-label="Nombre: activate to sort column ascending" style="width: 174px;"> <div class="DataTables_sort_wrapper">Nombre<span class="DataTables_sort_icon css_right ui-icon ui-icon-caret-2-ns"></span></div> </th> <th class="sorting ui-state-default" tabindex="0" aria-controls="medicalListTable" rowspan="1" colspan="1" aria-label="Apellidos: activate to sort column ascending" style="width: 329px;"> <div class="DataTables_sort_wrapper">Apellidos<span class="DataTables_sort_icon css_right ui-icon ui-icon-caret-2-ns"></span></div> </th> <th class="sorting ui-state-default" tabindex="0" aria-controls="medicalListTable" rowspan="1" colspan="1" aria-label="Seleccionar: activate to sort column ascending" style="width: 125px;"> <div class="DataTables_sort_wrapper">Seleccionar<span class="DataTables_sort_icon css_right ui-icon ui-icon-caret-2-ns"></span></div> </th> </tr> </thead> <tbody> <tr role="row" class="odd"> <td class="vehicleId sorting_1">345</td> <td class="model">NAME</td> <td class="model">SURNAME</td> <td> <input type="checkbox" id="sindicate-345"> </td> </tr> </tbody> </table>

Answer 3

你可以通过

$('#sindicate-345').attr('Checked','Checked');

 $('#sindicate-345').attr('Checked','Checked');

 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <table id="medicalListTable" class="display responsive nowrap dataTable no-footer" cellspacing="0" width="100%" role="grid" aria-describedby="medicalListTable_info" style="width: 100%;"> <thead> <tr role="row"> <th class="sorting ui-state-default sorting_asc" tabindex="0" aria-controls="medicalListTable" rowspan="1" colspan="1" aria-sort="ascending" aria-label="Id empleado: activate to sort column descending" style="width: 134px;"> <div class="DataTables_sort_wrapper">Id empleado<span class="DataTables_sort_icon css_right ui-icon ui-icon-triangle-1-n"></span></div> </th> <th class="sorting ui-state-default" tabindex="0" aria-controls="medicalListTable" rowspan="1" colspan="1" aria-label="Nombre: activate to sort column ascending" style="width: 174px;"> <div class="DataTables_sort_wrapper">Nombre<span class="DataTables_sort_icon css_right ui-icon ui-icon-caret-2-ns"></span></div> </th> <th class="sorting ui-state-default" tabindex="0" aria-controls="medicalListTable" rowspan="1" colspan="1" aria-label="Apellidos: activate to sort column ascending" style="width: 329px;"> <div class="DataTables_sort_wrapper">Apellidos<span class="DataTables_sort_icon css_right ui-icon ui-icon-caret-2-ns"></span></div> </th> <th class="sorting ui-state-default" tabindex="0" aria-controls="medicalListTable" rowspan="1" colspan="1" aria-label="Seleccionar: activate to sort column ascending" style="width: 125px;"> <div class="DataTables_sort_wrapper">Seleccionar<span class="DataTables_sort_icon css_right ui-icon ui-icon-caret-2-ns"></span></div> </th> </tr> </thead> <tbody> <tr role="row" class="odd"> <td class="vehicleId sorting_1">345</td> <td class="model">NAME</td> <td class="model">SURNAME</td> <td> <input type="checkbox" id="sindicate-345"> </td> </tr> </tbody> </table>

或者

$("#sindicate-345").prop("checked", true);

 $("#sindicate-345").prop("checked", true);

 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <table id="medicalListTable" class="display responsive nowrap dataTable no-footer" cellspacing="0" width="100%" role="grid" aria-describedby="medicalListTable_info" style="width: 100%;"> <thead> <tr role="row"> <th class="sorting ui-state-default sorting_asc" tabindex="0" aria-controls="medicalListTable" rowspan="1" colspan="1" aria-sort="ascending" aria-label="Id empleado: activate to sort column descending" style="width: 134px;"> <div class="DataTables_sort_wrapper">Id empleado<span class="DataTables_sort_icon css_right ui-icon ui-icon-triangle-1-n"></span></div> </th> <th class="sorting ui-state-default" tabindex="0" aria-controls="medicalListTable" rowspan="1" colspan="1" aria-label="Nombre: activate to sort column ascending" style="width: 174px;"> <div class="DataTables_sort_wrapper">Nombre<span class="DataTables_sort_icon css_right ui-icon ui-icon-caret-2-ns"></span></div> </th> <th class="sorting ui-state-default" tabindex="0" aria-controls="medicalListTable" rowspan="1" colspan="1" aria-label="Apellidos: activate to sort column ascending" style="width: 329px;"> <div class="DataTables_sort_wrapper">Apellidos<span class="DataTables_sort_icon css_right ui-icon ui-icon-caret-2-ns"></span></div> </th> <th class="sorting ui-state-default" tabindex="0" aria-controls="medicalListTable" rowspan="1" colspan="1" aria-label="Seleccionar: activate to sort column ascending" style="width: 125px;"> <div class="DataTables_sort_wrapper">Seleccionar<span class="DataTables_sort_icon css_right ui-icon ui-icon-caret-2-ns"></span></div> </th> </tr> </thead> <tbody> <tr role="row" class="odd"> <td class="vehicleId sorting_1">345</td> <td class="model">NAME</td> <td class="model">SURNAME</td> <td> <input type="checkbox" id="sindicate-345"> </td> </tr> </tbody> </table>