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javascript - 提交表单时验证所有 html 行

转载 作者:行者123 更新时间:2023-12-03 00:42:18 24 4
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我正在处理 html 表,用户可以在其中输入详细信息,然后单击提交按钮将数据提交到后端。我有 3 个必填列(Spring、Role、Project),用户在单击提交按钮发送到后端之前必须输入这些列。如果用户在前两行中输入数据并单击提交按钮,我想验证用户是否在每行的必填字段 Sprint、Role 和 Project 中输入了数据,并且如果用户错过了在必填字段中输入数据,那么我想在该行附近显示错误消息“请输入必填字段”。如果用户未在其中输入数据,我很困惑如何显示每行的错误消息当用户在前 3 行输入数据后单击提交按钮时的必填字段。任何输入都会有帮助。我总共有 6 行,用户可以在其中全部或几行中输入详细信息,然后单击提交按钮。只需我需要验证行并在必填字段中缺少数据的每行附近显示错误消息。

演示链接:https://plnkr.co/edit/QbiuE8jOIwd2t40akBwe?p=preview

示例 html 代码:

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script>

function submitData(){
alert("submit");

}
</script>
</head>
<body>

<table id="productTable" border="1">

<tr>
<th>SID</th>
<th>Sprint <span style="color:red;">*</span></th>
<th>Role<span style="color:red;">*</span></th>
<th>Comments</th>
<th>Project<span style="color:red;">*</span></th>
</tr>

<tr>
<td><input type="text" name="sid" value=""></td>
<td>
<select class="sprint" >
<option value=""></option>
<option value="">121.1</option>
<option value="">121.2</option>
<option value="">121.3</option>
<option value="">122.1</option>
<option value="">122.2</option>
</select>
</td>
<td>
<input type="text" name="role" value="">
</td>
<td>
<input type="text" name="Comments" value="">
</td>
<td>
<select class="project" >
<option value=""></option>
<option value="">ProA</option>
<option value="">ProB</option>
<option value="">ProC</option>
<option value="">ProD</option>
</select>
</td>
</tr>
<tr>
<td><input type="text" name="sid" value=""></td>
<td>
<select class="sprint" >
<option value=""></option>
<option value="">121.1</option>
<option value="">121.2</option>
<option value="">121.3</option>
<option value="">122.1</option>
<option value="">122.2</option>
</select>
</td>
<td>
<input type="text" name="role" value="">
</td>
<td>
<input type="text" name="Comments" value="">
</td>
<td>
<select class="project" >
<option value=""></option>
<option value="">ProA</option>
<option value="">ProB</option>
<option value="">ProC</option>
<option value="">ProD</option>
</select>
</td>
</tr>
<tr>
<td><input type="text" name="sid" value=""></td>
<td>
<select class="sprint" >
<option value=""></option>
<option value="">121.1</option>
<option value="">121.2</option>
<option value="">121.3</option>
<option value="">122.1</option>
<option value="">122.2</option>
</select>
</td>
<td>
<input type="text" name="role" value="">
</td>
<td>
<input type="text" name="Comments" value="">
</td>
<td>
<select class="project" >
<option value=""></option>
<option value="">ProA</option>
<option value="">ProB</option>
<option value="">ProC</option>
<option value="">ProD</option>
</select>
</td>
</tr>
<tr>
<td><input type="text" name="sid" value=""></td>
<td>
<select class="sprint" >
<option value=""></option>
<option value="">121.1</option>
<option value="">121.2</option>
<option value="">121.3</option>
<option value="">122.1</option>
<option value="">122.2</option>
</select>
</td>
<td>
<input type="text" name="role" value="">
</td>
<td>
<input type="text" name="Comments" value="">
</td>
<td>
<select class="project" >
<option value=""></option>
<option value="">ProA</option>
<option value="">ProB</option>
<option value="">ProC</option>
<option value="">ProD</option>
</select>
</td>
</tr>
<tr>
<td><input type="text" name="sid" value=""></td>
<td>
<select class="sprint" >
<option value=""></option>
<option value="">121.1</option>
<option value="">121.2</option>
<option value="">121.3</option>
<option value="">122.1</option>
<option value="">122.2</option>
</select>
</td>
<td>
<input type="text" name="role" value="">
</td>
<td>
<input type="text" name="Comments" value="">
</td>
<td>
<select class="project" >
<option value=""></option>
<option value="">ProA</option>
<option value="">ProB</option>
<option value="">ProC</option>
<option value="">ProD</option>
</select>
</td>
</tr>
<tr>
<td><input type="text" name="sid" value=""></td>
<td>
<select class="sprint" >
<option value=""></option>
<option value="">121.1</option>
<option value="">121.2</option>
<option value="">121.3</option>
<option value="">122.1</option>
<option value="">122.2</option>
</select>
</td>
<td>
<input type="text" name="role" value="">
</td>
<td>
<input type="text" name="Comments" value="">
</td>
<td>
<select class="project" >
<option value=""></option>
<option value="">ProA</option>
<option value="">ProB</option>
<option value="">ProC</option>
<option value="">ProD</option>
</select>
</td>
</tr>

</table> <br>
<input type="submit" value="submit" onclick="submitData()">

最佳答案

检查是否输入了所有数据,然后部分输入了其余数据

if (sprint && role && project) {.....}
else if (!sprint && !role && !project) {} // do nothing
else {....}

演示:

function submitData() {
var dataPassed = false,
dataCount = 0,
hasEnteredData = false;
$('#productTable tr:not(:first)').each(function(index) {

var sprint = $(this).find('.sprint :selected').text(),
role = $(this).find('input[name="role"]').val(),
project = $(this).find('.project :selected').text();
if (sprint && role && project) {
dataPassed = true
dataCount++;
}
else if (!sprint && !role && !project) {
// all empty, skip
}
else {
alert('Required data missing in row: ' +
(index + 1) + '\nfill: Sprint, Role, Project')
dataPassed = false;
hasEnteredData = true;
return false;
}
})

if (dataPassed) {
alert('Success, Data count: ' +
dataCount + ' rows, submit?');
// do submit
}
else if (!hasEnteredData) {
alert('No data entered')
}
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>

<table id="productTable" border="1">

<tr>
<th>SID</th>
<th>Sprint <span style="color:red;">*</span></th>
<th>Role<span style="color:red;">*</span></th>
<th>Comments</th>
<th>Project<span style="color:red;">*</span></th>
</tr>

<tr>
<td>
<input type="text" name="sid" value="">
</td>
<td>
<select class="sprint">
<option value=""></option>
<option value="">121.1</option>
<option value="">121.2</option>
<option value="">121.3</option>
<option value="">122.1</option>
<option value="">122.2</option>
</select>
</td>
<td>
<input type="text" name="role" value="">
</td>
<td>
<input type="text" name="Comments" value="">
</td>
<td>
<select class="project">
<option value=""></option>
<option value="">ProA</option>
<option value="">ProB</option>
<option value="">ProC</option>
<option value="">ProD</option>
</select>
</td>
</tr>
<tr>
<td>
<input type="text" name="sid" value="">
</td>
<td>
<select class="sprint">
<option value=""></option>
<option value="">121.1</option>
<option value="">121.2</option>
<option value="">121.3</option>
<option value="">122.1</option>
<option value="">122.2</option>
</select>
</td>
<td>
<input type="text" name="role" value="">
</td>
<td>
<input type="text" name="Comments" value="">
</td>
<td>
<select class="project">
<option value=""></option>
<option value="">ProA</option>
<option value="">ProB</option>
<option value="">ProC</option>
<option value="">ProD</option>
</select>
</td>
</tr>
<tr>
<td>
<input type="text" name="sid" value="">
</td>
<td>
<select class="sprint">
<option value=""></option>
<option value="">121.1</option>
<option value="">121.2</option>
<option value="">121.3</option>
<option value="">122.1</option>
<option value="">122.2</option>
</select>
</td>
<td>
<input type="text" name="role" value="">
</td>
<td>
<input type="text" name="Comments" value="">
</td>
<td>
<select class="project">
<option value=""></option>
<option value="">ProA</option>
<option value="">ProB</option>
<option value="">ProC</option>
<option value="">ProD</option>
</select>
</td>
</tr>
</table>
<br>
<input type="submit" value="submit" onclick="submitData()">

关于javascript - 提交表单时验证所有 html 行,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/53399359/

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