我在使用按钮Javascript插入行时出现问题。当我按下按钮行时意外插入如下图像。另外我需要删除行按钮同样有效。感谢您的回复。
我的代码
<style>
table {
border-collapse: collapse;
margin: 100px;
}
table, td, th {
border: 1px solid black;
padding: 10px;
}
</style>
table id="t1">
<tr>
<th>Task No</th>
<th>Done/In Progress</th>
<th>Deadline</th>
<th>Task</th>
</tr>
<tr>
<td>1.</td>
<td>
<input type="checkbox" />
</td>
<td></td>
<td>
<input type="text" style="width:100%;" />
</td>
</tr>
</table>
<input style="margin-top:-200px; padding:10px" type="button" value="Add Row" onclick="add()" />
java脚本:
<script>
function add() {
var num = document.getElementById("t1").rows.length;
console.log(num);
var x = document.createElement("tr");
var a = document.createElement("td");
var anode = document.createTextNode(num);
a.appendChild(anode);
x.appendChild(a);
a = document.createElement("td");
anode = document.createElement("input");
var b = document.createAttribute("type");
b.value = "checkbox";
anode.setAttributeNode(b);
a.appendChild(anode);
x.appendChild(a);
a = document.createElement("td");
anode = document.createElement("input");
b = document.createAttribute("type");
b.value = "text";
anode.setAttributeNode(b);
a.appendChild(anode);
x.appendChild(a);
document.getElementById("t1").appendChild(x);
}
</script>
答案 0 :(得分:0)
function add() {
var num = document.getElementById("t1").rows.length;
console.log(num);
var x = document.createElement("tr");
var a = document.createElement("td");
var anode = document.createTextNode(num+'.');
a.appendChild(anode);
x.appendChild(a);
a = document.createElement("td");
anode = document.createElement("input");
var b = document.createAttribute("type");
b.value = "checkbox";
anode.setAttributeNode(b);
a.appendChild(anode);
x.appendChild(a);
a = document.createElement("td");
x.appendChild(a);
a = document.createElement("td");
anode = document.createElement("input");
b = document.createAttribute("type");
b.value = "text";
anode.setAttributeNode(b);
a.appendChild(anode);
x.appendChild(a);
a = document.createElement("td");
anode = document.createElement('input');
anode.setAttribute('type','button');
anode.setAttribute('value','Delete Row');
anode.setAttribute('onclick','deleteRow(this)');
a.appendChild(anode);
x.appendChild(a);
document.getElementById("t1").appendChild(x);
}
function deleteRow(e,v) {
var tr = e.parentElement.parentElement;
var tbl = e.parentElement.parentElement.parentElement;
tbl.removeChild(tr);
}
table {
border-collapse: collapse;
margin: 100px;
}
table, td, th {
border: 1px solid black;
padding: 10px;
}
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>JS Bin</title>
</head>
<body>
<table id="t1">
<tr>
<th>Task No</th>
<th>Done/In Progress</th>
<th>Deadline</th>
<th>Task</th>
<th><input style="margin-top:-200px; padding:10px" type="button" value="Add Row" onclick="add()" /></th>
</tr>
<tr>
<td>1.</td>
<td>
<input type="checkbox" />
</td>
<td></td>
<td>
<input type="text" />
</td>
<td> <input type="button" value="Delete Row" onclick="deleteRow(this)" /></td>
</tr>
</table>
</body>
</html>