下面是创建新行文本字段的代码,例如,如果行指定了4个文本字段,下面的代码在单击[添加]按钮时创建与上面相同的附加行。
以下代码仅适用于IE,但在任何其他浏览器中均无效:
var delName = "ID=oth4del";
var t = oth4;
t.str = "\r\n <td><table class=\"query\" width=\"100%\">\r\n <tr>\r\n <td><input type=\"text\" name=\"q269r1491i~\" size=\"22\" maxlength=\"50\">\r\n </td>\r\n <td><input type=\"text\" name=\"q270r1447i~\" size=\"22\" maxlength=\"50\">\r\n </td>\r\n <td><input type=\"text\" name=\"q2765r6758i~\" size=\"22\" maxlength=\"50\">\r\n </font></td>\r\n </tr>\r\n </table></td>\r\n ";
t.str = '<table width="100%"><tr chooserroot="true"><td><input type="button" value="Del" onclick="delrow(this)" '+delName+'></td>'+t.str+'</tr></table>';
t.cnt = 1;
document.multis.push(t);
我得到的错误是:
TypeError:m.lastChild.insertAdjacentHTML不是函数[Break On 这个错误]
m.lastChild.insertAdjacentHTML('beforeBegin', m.str.replace(/~/g,++m.cnt));
添加按钮代码:
调用以下函数:
<table align="center"><tr><td><input type="button" value="Add" onclick="addrow(this)" ID="insurance1Add"
></td></tr></table>
document.multis = new Array();
function findparent(e,tn) {
while(e && e.parentNode && e.tagName && e.tagName.toLowerCase()!=tn) e = e.parentNode;
return e;
}
function addrow(b)
{
var m = findparent(b,"div");
m.lastChild.insertAdjacentHTML('beforeBegin', m.str.replace(/~/g,++m.cnt));
}
///////////////////////////////////DEL ROW
function delrow(b)
{
var table = findparent(b,"table");
//var t = findparent(b,"div");
//alert(t.cnt);
//alert(table.cnt);
table.parentNode.removeChild(table);
}
未捕获TypeError:Object#没有方法'insertAdjacentHTML'
我还在Chrome中再次检查过,它给我发错误:调用addRow时
HTML生成的代码:
<DIV ID="Div_Insurance" >
<SPAN id="INSURANCE" style="display:inline;">
<div ID="insurance1"
>
<table border="1%" align="center" width="100%" style="display:none"><tr>
<td><table class="query" width="100%">
<tr>
<td >Type</td>
<td><select name="q2485i~">
<option value="5581">Pharmaceutical</option>
<option value="5582" selected>Long Term Care</option>
<option value="5583">Home Care</option>
<option value="5584">Other</option>
</select>
</td>
<td>Other</td>
<td><input type="text" name="q2764r6757i~" placeholder="Other Infomation" size="22" maxlength="50"></td>
</tr>
<tr>
<td>Name of Insurance</td>
<td><input type="text" name="q2438r5533i~" placeholder="Insurance Name" size="22" maxlength="50">
</td>
<td>Contact Person</td>
<td><input type="text" name="q2439r5534i~" placeholder="Contact Person" size="22" maxlength="50">
</td>
</tr>
<tr>
<td>Address</td>
<td><textarea cols="20" rows="4" maxlength="50" name="q2440r5535i~" placeholder="Address"></textarea>
</td>
<td>Phone</td>
<td><input type="text" name="q2441r5536i~" size="22" maxlength="50" onKeyUp="jm_phonemask(this)" onBlur="wphoneLength(this)"; placeholder="XXX-XXX-XXXX">
</td>
</tr>
<tr>
<td>Fax</td>
<td><input type="text" name="q2442r5537i~" size="22" maxlength="50" onKeyUp="jm_phonemask(this)" onBlur="wphoneLength(this)"; placeholder="XXX-XXX-XXXX">
</td>
<td>Email</td>
<td><input type="text" name="q2443r5538i~" size="22" maxlength="50" placeholder="xyz@xyz.xyz">
</td>
</tr>
</table></td>
</tr></table>
<table align="center"><tr><td><input type="button" value="Add" onclick="addrow(this)" ID="insurance1Add"
></td></tr></table>
</div>
<script>
var delName = "ID=insurance1del";
var t = insurance1;
t.str = "\r\n <td><table class=\"query\" width=\"100%\">\r\n <tr>\r\n <td >Type</td>\r\n <td><select name=\"q2485i~\">\r\n <option value=\"5581\">Pharmaceutical</option>\r\n <option value=\"5582\" selected>Long Term Care</option>\r\n <option value=\"5583\">Home Care</option>\r\n <option value=\"5584\">Other</option>\r\n </select>\r\n </td>\r\n <td>Other</td>\r\n <td><input type=\"text\" name=\"q2764r6757i~\" placeholder=\"Other Infomation\" size=\"22\" maxlength=\"50\"></td>\r\n </tr>\r\n <tr>\r\n <td>Name of Insurance</td>\r\n <td><input type=\"text\" name=\"q2438r5533i~\" placeholder=\"Insurance Name\" size=\"22\" maxlength=\"50\">\r\n </td>\r\n <td>Contact Person</td>\r\n <td><input type=\"text\" name=\"q2439r5534i~\" placeholder=\"Contact Person\" size=\"22\" maxlength=\"50\">\r\n </td>\r\n </tr>\r\n <tr>\r\n <td>Address</td>\r\n <td><textarea cols=\"20\" rows=\"4\" maxlength=\"50\" name=\"q2440r5535i~\" placeholder=\"Address\"></textarea>\r\n </td>\r\n <td>Phone</td>\r\n <td><input type=\"text\" name=\"q2441r5536i~\" size=\"22\" maxlength=\"50\" onKeyUp=\"jm_phonemask(this)\" onBlur=\"wphoneLength(this)\"; placeholder=\"XXX-XXX-XXXX\">\r\n </td>\r\n </tr>\r\n <tr>\r\n <td>Fax</td>\r\n <td><input type=\"text\" name=\"q2442r5537i~\" size=\"22\" maxlength=\"50\" onKeyUp=\"jm_phonemask(this)\" onBlur=\"wphoneLength(this)\"; placeholder=\"XXX-XXX-XXXX\">\r\n </td>\r\n <td>Email</td>\r\n <td><input type=\"text\" name=\"q2443r5538i~\" size=\"22\" maxlength=\"50\" placeholder=\"xyz@xyz.xyz\">\r\n </td>\r\n </tr>\r\n </table></td>\r\n ";
t.str = '<table width="100%"><tr chooserroot="true"><td><input type="button" value="Del" onclick="delrow(this)" '+delName+'></td>'+t.str+'</tr></table>';
t.cnt = 1;
document.multis.push(t);
</script>
</SPAN>
</DIV>
答案 0 :(得分:2)
在addrow()
函数中,执行console.log(m.lastChild)
并查看它是什么。
检查其nodeType
。我怀疑它是一个文本节点(即nodeType = 3)。
由于它是一个文本节点,不是一个元素节点,当然它不会有insertAdjacentHTML
方法。
参考文献:
lastChild:https://developer.mozilla.org/en-US/docs/DOM/Node.lastChild
nodeType:https://developer.mozilla.org/en-US/docs/DOM/Node.nodeType
insertAdjacentHTML:https://developer.mozilla.org/en-US/docs/DOM/element.insertAdjacentHTML
这是您可能想要保留的经典旧学校片段。获得lastChild(或任何其他版本)后,请确保您正在使用元素节点。
function addrow(b) {
var m = findparent(b,"div"),
lastChildElement = m.lastChild;
// the old-school routine
while (lastChildElement && lastChildElement.nodeType !== 1) {
lastChildElement = lastChildElement.previousSibling;
}
if (lastChildElement) {
lastChildElement.insertAdjacentHTML('beforeBegin', m.str.replace(/~/g,++m.cnt));
} else {
// handle this case...
}
}
正如您可能已经猜到的那样,另一端会涉及firstChild
和nextSibling
。