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我有一個帶有onclick函數的表。當點擊時,我得到以下錯誤: Uncaught TypeError: Cannot set property 'className' of undefined
Javascript:Uncaught TypeError:無法設置未定義的屬性'className'
奇怪的是,5行中有3行class
被更改,但2/5不是。當再次點擊該行時,其餘兩個中的一個被更改,並且當再次單擊時,最後一個被更改。這裏是我的代碼:
HTML表格
<tr class='invoice-tr-standard row5' onClick="FormTRClick(event, '6', '5')"><td><input type='checkbox' name='strFormFactuur[]' value='19500' id='chk6'> <img src='../images/link.png' border='0'></td>
<td><img src='../images/b_save.png' border='0' height='13px' style='cursor: pointer;' onClick="saveData('6', '?iID=19500&bType=0', 'all');")> <input type='image' src='../images/toevoegen.png' border='0' style='float: right; cursor: pointer;' name='FormDupliceer' value='19500'></td>
</tr>
<tr class='invoice-tr-standard row5' onClick="FormTRClick(event, '7', '5')"><td></td>
<td><img src='../images/b_save.png' border='0' height='13px' style='cursor: pointer;' onClick="saveData('7', '?iID=36&bType=1', 'fltBedrag');"> <input type='image' src='../images/b_delete.png' border='0' style='float: right; cursor: pointer;' name='FormVerwijder' value='36'></td>
</tr>
<tr class='invoice-tr-standard row5' onClick="FormTRClick(event, '8', '5')"><td></td>
<td><img src='../images/b_save.png' border='0' height='13px' style='cursor: pointer;' onClick="saveData('8', '?iID=37&bType=1', 'fltBedrag');"> <input type='image' src='../images/b_delete.png' border='0' style='float: right; cursor: pointer;' name='FormVerwijder' value='37'></td>
</tr>
<tr class='invoice-tr-standard row5' onClick="FormTRClick(event, '9', '5')"><td></td>
<td><img src='../images/b_save.png' border='0' height='13px' style='cursor: pointer;' onClick="saveData('9', '?iID=38&bType=1', 'fltBedrag');"> <input type='image' src='../images/b_delete.png' border='0' style='float: right; cursor: pointer;' name='FormVerwijder' value='38'></td>
</tr>
<tr class='invoice-tr-standard row5' onClick="FormTRClick(event, '10', '5')"><td></td>
<td><img src='../images/b_save.png' border='0' height='13px' style='cursor: pointer;' onClick="saveData('10', '?iID=66&bType=1', 'fltBedrag');"> <input type='image' src='../images/b_delete.png' border='0' style='float: right; cursor: pointer;' name='FormVerwijder' value='66'></td>
</tr>
JavaScript函數FormTRClick()
:
function FormTRClick(event, uID, PCID) {
var Object= event.target.tagName;
if (Object == 'TD') {
var Elements = document.getElementsByClassName('row' + PCID);
var iNumElements = Elements.length;
alert(iNumElements); // Outputs 5 as expected
for (var i=0; i < iNumElements; i++) {
Elements[i].className = "invoice-tr-clicked"; // Only changes 3 out of 5 on the first click
}
}
}
更新
當使用以下Elements[i].className += " invoice-tr-clicked";
而不是Elements[i].className = "invoice-tr-clicked";
,腳本作品如這應該。但是,當更換(因此=
)我得到Cannot set property 'className' of undefined
錯誤。
我試圖在這裏重新構建您的示例:http://jsbin.com/ugojaj/edit#javascript,html 但我無法重現錯誤。 你能提供一個可用的SSCCE嗎? – Ben
@Ben我已經改變了一些代碼,它按預期工作,但不在我的環境中。此代碼的作品:http://jsbin.com/ugojaj/2我必須玩弄它。 – Devator
我已更新我的帖子。 – Devator