javascript - 检查所有复选框

Question

我正在尝试检查数据表中的所有复选框。我以前已经让它工作过，但我不确定为什么它失败了。

这是数据表标题。第一个包含复选框输入:

<table id="example1" class="table table-bordered table-hover table-condensed">
  <thead>
    <tr>
      <th><input name="select_all" value="1" id="select_all" type="checkbox" /></th>
      <th>another header</th>
      <th>and another</th>
      <th>few more headers</th>
    </tr>
  </thead>
  <tbody>
  </tbody>
</table>

我真的不想发布任何生成数据表的代码，但以防万一:

function displayRecords()
{
  $.ajax({
    url: 'process/getNVR.php',
    type: 'POST',
    data: '',
    success: function(data, textStatus, jqXHR) {
      var jsonObject = JSON.parse(data); 
      var table = $('#example1').DataTable({
        "dom": "Rlfrtip",
        "data": jsonObject,
        "columns": [
          {
            "data": "",
            "fnCreatedCell": function (nTd, sData, oData, iRow, iCol)
            {
              $(nTd).html("<input type='checkbox' class='checkEdit' id='checkEdit' data-checkbooking='"+oData.booking+"' />");
            }
          },
          { "data": "ANOTHER_HEADER" },
          { "data": "AND_ANOTHER" },
          { "data": "FEW_MORE_HEADERS" }
        ],
        "iDisplayLength": 50,
        "order": [[ 1, "desc" ]],
        "paging": true,
        "scrollY": 550,
        "scrollX": true,
        "bDestroy": true,
        "stateSave": true,
        "scrollCollapse": true,
        "fixedColumns": {
          leftColumns: 2
        },
        "deferRender": true
      });
    },
    error: function(jqHHR, textStatus, errorThrown) {
      console.log('fail: '+ errorThrown);
      return false;
    }
  });
}

我真的认为我不需要发布数据表的代码。也许我添加的某些内容导致了我的问题。您会注意到数据表的第一列将包含每条记录的复选框。

这是应该检测何时选中标题复选框的 jQuery:

$('#select_all').on('click', function()
{
  var table = $('#example1').DataTable();
  $(':checkbox', table.rows().nodes()).prop('checked', this.checked);   
  console.log('test');
});

如上所述，我之前已经成功使用过此代码。我将它与我之前使用它的项目进行了比较。我没有看到任何不同。

当单击复选框时，我什至无法让控制台显示“测试”。

我错过了什么？

编辑

这是一个工作 fiddle 。当我说“工作”时，它就像它应该的那样工作。这让我相信 CSS 库或其他东西出了问题。

https://jsfiddle.net/2ksg0xcv/

编辑2

我想我找到了罪魁祸首。

在页面底部，我正在调用以下 JavaScript 库:

<script src="https://cdn.datatables.net/fixedcolumns/3.3.0/js/dataTables.fixedColumns.min.js" type="text/javascript"></script>

当我评论该库时，一切正常。问题是，我需要有固定的列。

Answer 1

这是您的代码的工作片段。它确实有效，但会产生来自 dataTables.css 文件的错误。不确定是什么导致了这个错误。我重写了第一个css规则，但错误仍然出现。我也完全删除了它，但错误发生在下一个 block 上。最后，我直接在代码片段的 css 开头添加了 dataTable.css 内容。这有效!不确定问题是出在 stackoveflow 还是 jquery。在您的计算机/服务器上尝试一下，看看会发生什么，以确定是否应该将其报告给 jquery 来解决。

注意:建议添加 $('.checkEdit').prop('checked', this.checked);并不能解决问题

$(document).ready( function () {
    $('#example1').DataTable();
} );

$('#select_all').on('click', function()
{
	var table = $('#example1').DataTable();
    $(':checkbox', table.rows().nodes()).prop('checked', this.checked);	
    console.log('this is table ' + table);
});

table.dataTable{
   width:100%;
   margin:0 auto;
   clear:both;
   border-collapse:seperate;
   border-spacing:0;
}
table.dataTable thead th,
table.dataTable tfoot th {
  font-weight: bold;
}
table.dataTable thead th,
table.dataTable thead td {
  padding: 10px 18px;
  border-bottom: 1px solid #111;
}
table.dataTable thead th:active,
table.dataTable thead td:active {
  outline: none;
}
table.dataTable tfoot th,
table.dataTable tfoot td {
  padding: 10px 18px 6px 18px;
  border-top: 1px solid #111;
}
table.dataTable thead .sorting,
table.dataTable thead .sorting_asc,
table.dataTable thead .sorting_desc,
table.dataTable thead .sorting_asc_disabled,
table.dataTable thead .sorting_desc_disabled {
  cursor: pointer;
  *cursor: hand;
  background-repeat: no-repeat;
  background-position: center right;
}
table.dataTable thead .sorting {
  background-image: url("../images/sort_both.png");
}
table.dataTable thead .sorting_asc {
  background-image: url("../images/sort_asc.png");
}
table.dataTable thead .sorting_desc {
  background-image: url("../images/sort_desc.png");
}
table.dataTable thead .sorting_asc_disabled {
  background-image: url("../images/sort_asc_disabled.png");
}
table.dataTable thead .sorting_desc_disabled {
  background-image: url("../images/sort_desc_disabled.png");
}
table.dataTable tbody tr {
  background-color: #ffffff;
}
table.dataTable tbody tr.selected {
  background-color: #B0BED9;
}
table.dataTable tbody th,
table.dataTable tbody td {
  padding: 8px 10px;
}
table.dataTable.row-border tbody th, table.dataTable.row-border tbody td, table.dataTable.display tbody th, table.dataTable.display tbody td {
  border-top: 1px solid #ddd;
}
table.dataTable.row-border tbody tr:first-child th,
table.dataTable.row-border tbody tr:first-child td, table.dataTable.display tbody tr:first-child th,
table.dataTable.display tbody tr:first-child td {
  border-top: none;
}
table.dataTable.cell-border tbody th, table.dataTable.cell-border tbody td {
  border-top: 1px solid #ddd;
  border-right: 1px solid #ddd;
}
table.dataTable.cell-border tbody tr th:first-child,
table.dataTable.cell-border tbody tr td:first-child {
  border-left: 1px solid #ddd;
}
table.dataTable.cell-border tbody tr:first-child th,
table.dataTable.cell-border tbody tr:first-child td {
  border-top: none;
}
table.dataTable.stripe tbody tr.odd, table.dataTable.display tbody tr.odd {
  background-color: #f9f9f9;
}
table.dataTable.stripe tbody tr.odd.selected, table.dataTable.display tbody tr.odd.selected {
  background-color: #acbad4;
}
table.dataTable.hover tbody tr:hover, table.dataTable.display tbody tr:hover {
  background-color: #f6f6f6;
}
table.dataTable.hover tbody tr:hover.selected, table.dataTable.display tbody tr:hover.selected {
  background-color: #aab7d1;
}
table.dataTable.order-column tbody tr > .sorting_1,
table.dataTable.order-column tbody tr > .sorting_2,
table.dataTable.order-column tbody tr > .sorting_3, table.dataTable.display tbody tr > .sorting_1,
table.dataTable.display tbody tr > .sorting_2,
table.dataTable.display tbody tr > .sorting_3 {
  background-color: #fafafa;
}
table.dataTable.order-column tbody tr.selected > .sorting_1,
table.dataTable.order-column tbody tr.selected > .sorting_2,
table.dataTable.order-column tbody tr.selected > .sorting_3, table.dataTable.display tbody tr.selected > .sorting_1,
table.dataTable.display tbody tr.selected > .sorting_2,
table.dataTable.display tbody tr.selected > .sorting_3 {
  background-color: #acbad5;
}
table.dataTable.display tbody tr.odd > .sorting_1, table.dataTable.order-column.stripe tbody tr.odd > .sorting_1 {
  background-color: #f1f1f1;
}
table.dataTable.display tbody tr.odd > .sorting_2, table.dataTable.order-column.stripe tbody tr.odd > .sorting_2 {
  background-color: #f3f3f3;
}
table.dataTable.display tbody tr.odd > .sorting_3, table.dataTable.order-column.stripe tbody tr.odd > .sorting_3 {
  background-color: whitesmoke;
}
table.dataTable.display tbody tr.odd.selected > .sorting_1, table.dataTable.order-column.stripe tbody tr.odd.selected > .sorting_1 {
  background-color: #a6b4cd;
}
table.dataTable.display tbody tr.odd.selected > .sorting_2, table.dataTable.order-column.stripe tbody tr.odd.selected > .sorting_2 {
  background-color: #a8b5cf;
}
table.dataTable.display tbody tr.odd.selected > .sorting_3, table.dataTable.order-column.stripe tbody tr.odd.selected > .sorting_3 {
  background-color: #a9b7d1;
}
table.dataTable.display tbody tr.even > .sorting_1, table.dataTable.order-column.stripe tbody tr.even > .sorting_1 {
  background-color: #fafafa;
}
table.dataTable.display tbody tr.even > .sorting_2, table.dataTable.order-column.stripe tbody tr.even > .sorting_2 {
  background-color: #fcfcfc;
}
table.dataTable.display tbody tr.even > .sorting_3, table.dataTable.order-column.stripe tbody tr.even > .sorting_3 {
  background-color: #fefefe;
}
table.dataTable.display tbody tr.even.selected > .sorting_1, table.dataTable.order-column.stripe tbody tr.even.selected > .sorting_1 {
  background-color: #acbad5;
}
table.dataTable.display tbody tr.even.selected > .sorting_2, table.dataTable.order-column.stripe tbody tr.even.selected > .sorting_2 {
  background-color: #aebcd6;
}
table.dataTable.display tbody tr.even.selected > .sorting_3, table.dataTable.order-column.stripe tbody tr.even.selected > .sorting_3 {
  background-color: #afbdd8;
}
table.dataTable.display tbody tr:hover > .sorting_1, table.dataTable.order-column.hover tbody tr:hover > .sorting_1 {
  background-color: #eaeaea;
}
table.dataTable.display tbody tr:hover > .sorting_2, table.dataTable.order-column.hover tbody tr:hover > .sorting_2 {
  background-color: #ececec;
}
table.dataTable.display tbody tr:hover > .sorting_3, table.dataTable.order-column.hover tbody tr:hover > .sorting_3 {
  background-color: #efefef;
}
table.dataTable.display tbody tr:hover.selected > .sorting_1, table.dataTable.order-column.hover tbody tr:hover.selected > .sorting_1 {
  background-color: #a2aec7;
}
table.dataTable.display tbody tr:hover.selected > .sorting_2, table.dataTable.order-column.hover tbody tr:hover.selected > .sorting_2 {
  background-color: #a3b0c9;
}
table.dataTable.display tbody tr:hover.selected > .sorting_3, table.dataTable.order-column.hover tbody tr:hover.selected > .sorting_3 {
  background-color: #a5b2cb;
}
table.dataTable.no-footer {
  border-bottom: 1px solid #111;
}
table.dataTable.nowrap th, table.dataTable.nowrap td {
  white-space: nowrap;
}
table.dataTable.compact thead th,
table.dataTable.compact thead td {
  padding: 4px 17px 4px 4px;
}
table.dataTable.compact tfoot th,
table.dataTable.compact tfoot td {
  padding: 4px;
}
table.dataTable.compact tbody th,
table.dataTable.compact tbody td {
  padding: 4px;
}
table.dataTable th.dt-left,
table.dataTable td.dt-left {
  text-align: left;
}
table.dataTable th.dt-center,
table.dataTable td.dt-center,
table.dataTable td.dataTables_empty {
  text-align: center;
}
table.dataTable th.dt-right,
table.dataTable td.dt-right {
  text-align: right;
}
table.dataTable th.dt-justify,
table.dataTable td.dt-justify {
  text-align: justify;
}
table.dataTable th.dt-nowrap,
table.dataTable td.dt-nowrap {
  white-space: nowrap;
}
table.dataTable thead th.dt-head-left,
table.dataTable thead td.dt-head-left,
table.dataTable tfoot th.dt-head-left,
table.dataTable tfoot td.dt-head-left {
  text-align: left;
}
table.dataTable thead th.dt-head-center,
table.dataTable thead td.dt-head-center,
table.dataTable tfoot th.dt-head-center,
table.dataTable tfoot td.dt-head-center {
  text-align: center;
}
table.dataTable thead th.dt-head-right,
table.dataTable thead td.dt-head-right,
table.dataTable tfoot th.dt-head-right,
table.dataTable tfoot td.dt-head-right {
  text-align: right;
}
table.dataTable thead th.dt-head-justify,
table.dataTable thead td.dt-head-justify,
table.dataTable tfoot th.dt-head-justify,
table.dataTable tfoot td.dt-head-justify {
  text-align: justify;
}
table.dataTable thead th.dt-head-nowrap,
table.dataTable thead td.dt-head-nowrap,
table.dataTable tfoot th.dt-head-nowrap,
table.dataTable tfoot td.dt-head-nowrap {
  white-space: nowrap;
}
table.dataTable tbody th.dt-body-left,
table.dataTable tbody td.dt-body-left {
  text-align: left;
}
table.dataTable tbody th.dt-body-center,
table.dataTable tbody td.dt-body-center {
  text-align: center;
}
table.dataTable tbody th.dt-body-right,
table.dataTable tbody td.dt-body-right {
  text-align: right;
}
table.dataTable tbody th.dt-body-justify,
table.dataTable tbody td.dt-body-justify {
  text-align: justify;
}
table.dataTable tbody th.dt-body-nowrap,
table.dataTable tbody td.dt-body-nowrap {
  white-space: nowrap;
}

table.dataTable,
table.dataTable th,
table.dataTable td {
  box-sizing: content-box;
}

/*
 * Control feature layout
 */
.dataTables_wrapper {
  position: relative;
  clear: both;
  *zoom: 1;
  zoom: 1;
}
.dataTables_wrapper .dataTables_length {
  float: left;
}
.dataTables_wrapper .dataTables_filter {
  float: right;
  text-align: right;
}
.dataTables_wrapper .dataTables_filter input {
  margin-left: 0.5em;
}
.dataTables_wrapper .dataTables_info {
  clear: both;
  float: left;
  padding-top: 0.755em;
}
.dataTables_wrapper .dataTables_paginate {
  float: right;
  text-align: right;
  padding-top: 0.25em;
}
.dataTables_wrapper .dataTables_paginate .paginate_button {
  box-sizing: border-box;
  display: inline-block;
  min-width: 1.5em;
  padding: 0.5em 1em;
  margin-left: 2px;
  text-align: center;
  text-decoration: none !important;
  cursor: pointer;
  *cursor: hand;
  color: #333 !important;
  border: 1px solid transparent;
  border-radius: 2px;
}
.dataTables_wrapper .dataTables_paginate .paginate_button.current, .dataTables_wrapper .dataTables_paginate .paginate_button.current:hover {
  color: #333 !important;
  border: 1px solid #979797;
  background-color: white;
  background: -webkit-gradient(linear, left top, left bottom, color-stop(0%, white), color-stop(100%, #dcdcdc));
  /* Chrome,Safari4+ */
  background: -webkit-linear-gradient(top, white 0%, #dcdcdc 100%);
  /* Chrome10+,Safari5.1+ */
  background: -moz-linear-gradient(top, white 0%, #dcdcdc 100%);
  /* FF3.6+ */
  background: -ms-linear-gradient(top, white 0%, #dcdcdc 100%);
  /* IE10+ */
  background: -o-linear-gradient(top, white 0%, #dcdcdc 100%);
  /* Opera 11.10+ */
  background: linear-gradient(to bottom, white 0%, #dcdcdc 100%);
  /* W3C */
}
.dataTables_wrapper .dataTables_paginate .paginate_button.disabled, .dataTables_wrapper .dataTables_paginate .paginate_button.disabled:hover, .dataTables_wrapper .dataTables_paginate .paginate_button.disabled:active {
  cursor: default;
  color: #666 !important;
  border: 1px solid transparent;
  background: transparent;
  box-shadow: none;
}
.dataTables_wrapper .dataTables_paginate .paginate_button:hover {
  color: white !important;
  border: 1px solid #111;
  background-color: #585858;
  background: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #585858), color-stop(100%, #111));
  /* Chrome,Safari4+ */
  background: -webkit-linear-gradient(top, #585858 0%, #111 100%);
  /* Chrome10+,Safari5.1+ */
  background: -moz-linear-gradient(top, #585858 0%, #111 100%);
  /* FF3.6+ */
  background: -ms-linear-gradient(top, #585858 0%, #111 100%);
  /* IE10+ */
  background: -o-linear-gradient(top, #585858 0%, #111 100%);
  /* Opera 11.10+ */
  background: linear-gradient(to bottom, #585858 0%, #111 100%);
  /* W3C */
}
.dataTables_wrapper .dataTables_paginate .paginate_button:active {
  outline: none;
  background-color: #2b2b2b;
  background: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #2b2b2b), color-stop(100%, #0c0c0c));
  /* Chrome,Safari4+ */
  background: -webkit-linear-gradient(top, #2b2b2b 0%, #0c0c0c 100%);
  /* Chrome10+,Safari5.1+ */
  background: -moz-linear-gradient(top, #2b2b2b 0%, #0c0c0c 100%);
  /* FF3.6+ */
  background: -ms-linear-gradient(top, #2b2b2b 0%, #0c0c0c 100%);
  /* IE10+ */
  background: -o-linear-gradient(top, #2b2b2b 0%, #0c0c0c 100%);
  /* Opera 11.10+ */
  background: linear-gradient(to bottom, #2b2b2b 0%, #0c0c0c 100%);
  /* W3C */
  box-shadow: inset 0 0 3px #111;
}
.dataTables_wrapper .dataTables_paginate .ellipsis {
  padding: 0 1em;
}
.dataTables_wrapper .dataTables_processing {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100%;
  height: 40px;
  margin-left: -50%;
  margin-top: -25px;
  padding-top: 20px;
  text-align: center;
  font-size: 1.2em;
  background-color: white;
  background: -webkit-gradient(linear, left top, right top, color-stop(0%, rgba(255, 255, 255, 0)), color-stop(25%, rgba(255, 255, 255, 0.9)), color-stop(75%, rgba(255, 255, 255, 0.9)), color-stop(100%, rgba(255, 255, 255, 0)));
  background: -webkit-linear-gradient(left, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.9) 25%, rgba(255, 255, 255, 0.9) 75%, rgba(255, 255, 255, 0) 100%);
  background: -moz-linear-gradient(left, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.9) 25%, rgba(255, 255, 255, 0.9) 75%, rgba(255, 255, 255, 0) 100%);
  background: -ms-linear-gradient(left, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.9) 25%, rgba(255, 255, 255, 0.9) 75%, rgba(255, 255, 255, 0) 100%);
  background: -o-linear-gradient(left, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.9) 25%, rgba(255, 255, 255, 0.9) 75%, rgba(255, 255, 255, 0) 100%);
  background: linear-gradient(to right, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.9) 25%, rgba(255, 255, 255, 0.9) 75%, rgba(255, 255, 255, 0) 100%);
}
.dataTables_wrapper .dataTables_length,
.dataTables_wrapper .dataTables_filter,
.dataTables_wrapper .dataTables_info,
.dataTables_wrapper .dataTables_processing,
.dataTables_wrapper .dataTables_paginate {
  color: #333;
}
.dataTables_wrapper .dataTables_scroll {
  clear: both;
}
.dataTables_wrapper .dataTables_scroll div.dataTables_scrollBody {
  *margin-top: -1px;
  -webkit-overflow-scrolling: touch;
}
.dataTables_wrapper .dataTables_scroll div.dataTables_scrollBody > table > thead > tr > th, .dataTables_wrapper .dataTables_scroll div.dataTables_scrollBody > table > thead > tr > td, .dataTables_wrapper .dataTables_scroll div.dataTables_scrollBody > table > tbody > tr > th, .dataTables_wrapper .dataTables_scroll div.dataTables_scrollBody > table > tbody > tr > td {
  vertical-align: middle;
}
.dataTables_wrapper .dataTables_scroll div.dataTables_scrollBody > table > thead > tr > th > div.dataTables_sizing,
.dataTables_wrapper .dataTables_scroll div.dataTables_scrollBody > table > thead > tr > td > div.dataTables_sizing, .dataTables_wrapper .dataTables_scroll div.dataTables_scrollBody > table > tbody > tr > th > div.dataTables_sizing,
.dataTables_wrapper .dataTables_scroll div.dataTables_scrollBody > table > tbody > tr > td > div.dataTables_sizing {
  height: 0;
  overflow: hidden;
  margin: 0 !important;
  padding: 0 !important;
}
.dataTables_wrapper.no-footer .dataTables_scrollBody {
  border-bottom: 1px solid #111;
}
.dataTables_wrapper.no-footer div.dataTables_scrollHead table.dataTable,
.dataTables_wrapper.no-footer div.dataTables_scrollBody > table {
  border-bottom: none;
}
.dataTables_wrapper:after {
  visibility: hidden;
  display: block;
  content: "";
  clear: both;
  height: 0;
}

@media screen and (max-width: 767px) {
  .dataTables_wrapper .dataTables_info,
  .dataTables_wrapper .dataTables_paginate {
    float: none;
    text-align: center;
  }
  .dataTables_wrapper .dataTables_paginate {
    margin-top: 0.5em;
  }
}
@media screen and (max-width: 640px) {
  .dataTables_wrapper .dataTables_length,
  .dataTables_wrapper .dataTables_filter {
    float: none;
    text-align: center;
  }
  .dataTables_wrapper .dataTables_filter {
    margin-top: 0.5em;
  }
}





a.booking {text-decoration: none;}
	thead input {width: 100%;padding: 3px;box-sizing: border-box;}

	tr.selected {background-color: #a6a6a6;}
	.content {padding-bottom: 0px;}
	
	.main-footer {padding-top: 7px; padding-bottom: 7px;}
	
	table.dataTable,
	table.dataTable th,
	table.dataTable td {
		-webkit-box-sizing: content-box;
		-moz-box-sizing: content-box;
		box-sizing: content-box;
		max-width: 300px;
	}

	table.dataTable tbody th,
 	table.dataTable tbody td {
      white-space: nowrap;
    }

	table.dataTable td:first-child, td:nth-child(2) {
		background-color:#ffffff;
	}

	.DTFC_LeftBodyLiner {
		overflow: hidden;
	}

	ol li:first-child {
		color: #228B22;
		font-size:16px;
	}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>


<script src="https://cdn.datatables.net/1.10.20/js/jquery.dataTables.min.js"></script>







<table id="example1" class="table table-bordered table-hover table-condensed">
								<thead>
									<tr>
                    <th><input class="pull-left" style="width:13px; height:13px;" name="select_all" value="1" id="select_all" type="checkbox" /></th>
                    <th>FIRST</th>
										<th>SECOND</th>
										<th>THRID</th>
										<th>FORUTH</th>
										<th>FIFTH</th>
									</tr>
								</thead>
								<tbody id="keyBody">
                  <tr>
                    <td><input type='checkbox' class='checkEdit' id='checkEdit' /></td>
                    <td>test</td>
                    <td>test</td>
                    <td>test</td>
                    <td>test</td>
                    <td>test</td>
                  </tr>
                  <tr>
                    <td><input type='checkbox' class='checkEdit' id='checkEdit' /></td>
                    <td>test</td>
                    <td>test</td>
                    <td>test</td>
                    <td>test</td>
                    <td>test</td>
                  </tr>
                   <tr>
                    <td><input type='checkbox' class='checkEdit' id='checkEdit' /></td>
                    <td>test</td>
                    <td>test</td>
                    <td>test</td>
                    <td>test</td>
                    <td>test</td>
                  </tr>                 
								</tbody>
							</table>