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我需要帮助。我想附加一个与现有表相同的表，例如，当我单击na第一行上的 + 按钮时，我有 2 行，na而新的附加表应该出现在第一行和第三行之间。请帮忙

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</head>
<body>

    <div style="margin:10px 0;border:1px solid #000;width:629px;text-align:right;">
        <div style="padding-right:15px;">
            <input type="button" value="Add Observation" onClick="addRowClone();"/>
        </div>
    </div><div id="Data">
    </div>
</body>
</html>
4

1 回答 1

1

我想你不会这样想的。
HTML：

<table>
<tbody>
    <tr>
        <td>First row</td>
        <!-- 'this' sends as argument to the addRow function - it's a button on which you click -->
        <td><button onclick="addRow(this);">Add row</button></td>
    </tr>
    <tr>
        <td>Second row</td>
        <td><button onclick="addRow(this);">Add row</button></td>
    </tr>
</tbody>
</table>

和 javascript：

function addRow(button) {
// get a table cell in which clicked button lies
var buttonTd = button.parentNode;
// get a table row in which clicked button lies 
var rowTr = buttonTd.parentNode;
// get a table tbody
var tableTbody = rowTr.parentNode;
// get a table
var tableTable = tableTbody.parentNode;

// clone table row in which clicked button lies
var newTr = rowTr.cloneNode(true);
// get a cell which holds name
var newTrNameTd = newTr.children[0];
// get a name, for first time it's 'First row' or 'Second row'
var oldName = newTrNameTd.innerHTML;
// adding to name ' new'
var newName = oldName + ' new';
// append name to the name's cell in cloned row
newTrNameTd.innerHTML = newName;

// try to get next row after that in which clicked button is lies 
var nextRow = rowTr.nextSibling;
// if we get this row
if (nextRow) {
    // append cloned row before it
    tableTbody.insertBefore(newTr, nextRow);
// if there was a last row
} else {
    // append cloned row in the end of the table
    tableTbody.appendChild(newTr);
}
}

Javascript 具有cloneNode(true)克隆您选择的节点的功能。
if代码中的语句插入节点之后nextRow。
PS如果你jQuery在所有代码中使用它，或者使用简单的javascript。

于 2013-07-22T07:10:27.847 回答