使用 Javascript 切换表 <tr> 的显示:无

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时间:2020-10-25 19:06:01  来源:igfitidea点击:

Toggle a table <tr>'s display:none using Javascript

javascripthtml-table

提问by Varada

I would like to use JavaScript to make a table row's display:none;and show it again on a click of a button.

我想使用 JavaScript 制作表格行display:none;,然后单击按钮再次显示。

回答by mplungjan

Plain JS - delegation, can handle dynamically inserted rows

纯 JS - 委托,可以处理动态插入的行

window.addEventListener("load", function() {
  document.getElementById("nav").addEventListener("click", function(e) {
    var tgt = e.target;
    if (tgt.tagName === "A") {
      e.preventDefault(); // stop click
      var  rowId = tgt.getAttribute("data-id"),
        rowIndex = tgt.getAttribute("data-index"),
             row = rowId ? document.getElementById(rowId) : // id passed 
      document.getElementById('table1').rows[rowIndex - 1]; // idx passed
      if (row) row.style.display = (row.style.display == 'none') ? '' : 'none';
    }
  });
});
<div id="nav">
  <a href="#" data-id="row3">Toggle row with ID row3</a> | 
  <a href="#" data-index="2">Toggle 2nd row</a><hr/>
  
</div>

<table>
<tbody id="table1">
<tr><td>row 1 cell 1</td><td>row 1 cell 2</td><td>row 1 cell 3</td></tr>
<tr><td>row 2 cell 1</td><td>row 2 cell 2</td><td>row 2 cell 3</td></tr>
<tr id="row3"><td>row 3 cell 1</td><td>row 3 cell 2</td><td>row 3 cell 3</td></tr>
</tbody>
</table>

Plain JS - inline handler can ALSO handle dynamically inserted rows but the above is preferred

普通 JS - 内联处理程序也可以处理动态插入的行,但以上是首选

function toggle(row) {
  if (isNaN(row)) row = document.getElementById(row); // id passed
  else row = document.getElementById('table1').rows[row]; // idx passed
  if (row) row.style.display = (row.style.display == 'none') ? '' : 'none';
  return false;
}
<a href="#" onClick="return toggle('row3')">Toggle row with ID row3</a> | 
<a href="#" onClick="return toggle(1)">Toggle 2nd row</a><hr/>

<table>
<tbody id="table1">
<tr><td>row 1 cell 1</td><td>row 1 cell 2</td><td>row 1 cell 3</td></tr>
<tr><td>row 2 cell 1</td><td>row 2 cell 2</td><td>row 2 cell 3</td></tr>
<tr id="row3"><td>row 3 cell 1</td><td>row 3 cell 2</td><td>row 3 cell 3</td></tr>
</tbody>
</table>

回答by Felix Kling

You have to modify the styleattribute of the element:

您必须修改style元素的属性:

// `rowElement` is a reference to the row you want to hide
rowElement.style.display = 'none';

回答by Blender

This vanilla JS solution works (http://jsfiddle.net/C5g8U/3/):

这个香草 JS 解决方案有效(http://jsfiddle.net/C5g8U/3/):

tr = document.getElementsByTagName('tr');

for (var i = 0; i < tr.length; i++) {
  if (tr[i].getElementsByTagName('td').length == 3) {
    tr[i].style.display = 'none';
  }
}

I'm a bit rusty with my vanilla JS, as I use jQuery for things like this, so here's a jQuery solution:

我对我的 vanilla JS 有点生疏,因为我使用 jQuery 来做这样的事情,所以这里有一个 jQuery 解决方案:

$('#button').click(function() {
  $('tr').each(function() {
    if ($(this).find('td').length == 3) {
      $(this).toggle();
    }
  });
});

回答by JK.

Give the <tr>an id and then you can hide it with jQuery:

<tr>一个 id 然后你可以用 jQuery 隐藏它:

<tr id="sampleRow">
</tr>

$("#button").click(function () {
    $("#sampleRow").toggle(); 
});

Toggle will make it hidden if it is currently visible, and will show it if it is currently hidden.

如果当前可见,切换将使其隐藏,如果当前隐藏则显示它。