js操作table中tr的顺序实现上移下移一行的效果
网络 2018-12-17 3135
总体思路是在table外部加个div，修改div的innerHtml实现改变tr顺序的效果
具体思路是
获取当前要移动tr行的rowIndex，在table中删除掉，然后循环table的rows，到了目标行再直接加进去，最后把整体的html赋值给div完成效果
js代码如下
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 | //使行向上一行 function setRowUp(obj) { if (obj.parentNode.parentNode.rowIndex != 1) { var tab = obj.parentNode.parentNode.parentNode; var nowNodeInnerHtml = obj.parentNode.parentNode.innerHTML; var nowNowIndex = obj.parentNode.parentNode.rowIndex; tab.deleteRow(nowNowIndex); var newHtml = "<table cellpadding=\"5\" cellspacing=\"0\">"; newHtml += ("<TR style='font-weight: bold; text-align: center;'>" + tab.rows[0].innerHTML + "</TR>"); for (i = 1; i < tab.rows.length; i++) { if (i == (nowNowIndex - 1)) { newHtml += ("<TR>" + nowNodeInnerHtml + "</TR>"); } newHtml += ("<TR>" + tab.rows[i].innerHTML + "</TR>"); } newHtml += "</table>"; document.getElementById("divContent").innerHTML = newHtml; } } //使行向下一行 function setRowDown(obj) { if (obj.parentNode.parentNode.rowIndex != (document.getElementById("divContent").childNodes[0].rows.length - 1)) { var tab = obj.parentNode.parentNode.parentNode; var nowNodeInnerHtml = obj.parentNode.parentNode.innerHTML; var nowNowIndex = obj.parentNode.parentNode.rowIndex; tab.deleteRow(nowNowIndex); var newHtml = "<table cellpadding=\"5\" cellspacing=\"0\">"; newHtml += ("<TR style='font-weight: bold; text-align: center;'>" + tab.rows[0].innerHTML + "</TR>"); for (i = 1; i < tab.rows.length; i++) { if (i == (nowNowIndex + 1)) { newHtml += ("<TR>" + nowNodeInnerHtml + "</TR>"); } newHtml += ("<TR>" + tab.rows[i].innerHTML + "</TR>"); } //向下可能到表格现有行数外 额外处理 if (tab.rows.length == (nowNowIndex + 1)) { newHtml += ("<TR>" + nowNodeInnerHtml + "</TR>"); } newHtml += "</table>"; document.getElementById("divContent").innerHTML = newHtml; } } |
测试html代码如下
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 | <body> <div id="divContent"> <table cellpadding="5" cellspacing="0"> <tr style='font-weight: bold; text-align: center;'><td>工号</td><td>姓名</td></tr> <tr><td>0001 <input type="button" value="↑" onclick="setRowUp(this)" /> <input type="button" value="↓" onclick="setRowDown(this)" /> </td><td>姓名01</td></tr> <tr><td>0002 <input type="button" value="↑" onclick="setRowUp(this)" /> <input type="button" value="↓" onclick="setRowDown(this)" /> </td><td>姓名02</td></tr> <tr><td>0003 <input type="button" value="↑" onclick="setRowUp(this)" /> <input type="button" value="↓" onclick="setRowDown(this)" /> </td><td>姓名03</td></tr> <tr><td>0004 <input type="button" value="↑" onclick="setRowUp(this)" /> <input type="button" value="↓" onclick="setRowDown(this)" /> </td><td>姓名04</td></tr> <tr><td>0005 <input type="button" value="↑" onclick="setRowUp(this)" /> <input type="button" value="↓" onclick="setRowDown(this)" /> </td><td>姓名05</td></tr> </table> </div> </body> |
