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JavaScript gets the value of the current row of the table, deletes rows, and adds rows_javascript skills
JavaScript gets the value of the current row of the table, deletes rows, and adds rows_javascript skills
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>Js获取 table当前行的值</title>
<script language=javascript>
var selectedTr = null;
function c1(obj) {
obj.style.backgroundColor = 'blue'; //把点到的那一行变希望的颜色;
if (selectedTr != null)
selectedTr.style.removeAttribute("backgroundColor");
if (selectedTr == obj)
selectedTr = null;//加上此句，以控制点击变白，再点击反灰
else
selectedTr = obj;
}
/*得到选中行的第一列的值*/
function check() {
if (selectedTr != null) {
var str = selectedTr.cells[0].childNodes[0].value;
document.getElementById("lab").innerHTML = str;
} else {
alert("请选择一行");
}
}
/*删除选中行*/
function del() {
if (selectedTr != null) {
if (confirm("确定要删除吗?")) {
alert(selectedTr.cells[0].childNodes[0].value);
var tbody = selectedTr.parentNode;
tbody.removeChild(selectedTr);
}
} else {
alert("请选择一行");
}
}
</script>
</head>
<body>
单击选中Tr，高亮显示，再单击取消选选中。
<input type=button value="选中的是哪一行？" onclick="check()">
<input type=button value="删除选中行" onclick="del()">
<input type=button value="增加一行" onclick="add()">
<table width="100%" border="1" cellspacing="0" cellpadding="0" id="tab">
<tr onclick="c1(this);" bgcolor="#cccccc">
<td><input type="text" value="11"></td>
<td><input type="text" value="12"></td>
</tr>
<tr onclick="c1(this);" bgcolor="#e0e0e0">
<td><input type="text" value="21"></td>
<td><input type="text" value="22"></td>
</tr>
<tr onclick="c1(this);" bgcolor="#cccccc">
<td><input type="text" value="31"></td>
<td><input type="text" value="32"></td>
</tr>
<tr onclick="c1(this);" bgcolor="#e0e0e0">
<td><input type="text" value="41"></td>
<td><input type="text" value="42"></td>
</tr>
<tr onclick="c1(this);" bgcolor="#cccccc">
<td><input type="text" value="51"></td>
<td><input type="text" value="52"></td>
</tr>
</table>
<label id="lab"></label>
</body>
</html>
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