【发布时间】:2009-07-28 15:55:56
【问题描述】:
我有一个工作脚本,用户在表单上完成输入,当他们提交表单时,表单输入的内容作为表格行输入。
有什么办法吗,我认为在 JS 中使每一行都有一个唯一的 ID,并在每行的最后一列添加一个删除按钮,以便用户可以删除单个行。
感谢您挽救了生命!!!!
HTML 表单
<form id="my_form" action="table_form.php" method="post">
<div style="width:10%; float:left;">
Quantity<br />
<input name="field_1" type="text" id="field_1" size="3" />
</div>
<div style="width:20%; float:left;">
Part Number<br />
<input type="text" id="field_2" name="field_2" />
</div>
<div style="width:30%; float:left;">
Notes<br />
<input name="field_3" type="text" id="field_3" size="45" />
</div>
<div style="width:20%; float:left;">
Unit Price<br />
<input type="text" id="field_4" name="field_4" />
</div>
<div style="width:20%; float:left;">
<br />
<input type="submit" value="Add Row" />
</div>
</form>
<!--
Here we create our HTML table.
Note the ID of the table. This will be used in our javascript file
Our table only contains a header row. All other content will be added dynamically
--><? $rowid = 1; ?>
<table width="100%" id="my_table">
<tbody id="my_table_body">
<tr>
<th width="5%"><div align="left">Qty</div></th>
<th width="19%"><div align="left">Part Number</div></th>
<th width="46%"><div align="left">Notes</div></th>
<th width="15%"><div align="left">Unit Price</div></th>
<th width="15%"><div align="left">Row Total</div></th>
</tr>
</tbody>
</table>
JS
window.addEvent('domready', function(){
$('my_form').addEvent('submit', function(e){
e.stop();
this.set('send', {
onComplete: function( response ){
var data = JSON.decode(response);
inject_row( $('my_table_body'), data );
}
});
var valid_form = true;
$$('#my_form input').each(function(item){
if( item.value == '' ) valid_form = false;
});
if( valid_form ) {
this.send();
} else {
alert('Fill in all fields');
}
});
var inject_row = function( table_body, data ){
var row_str = '<tr width="100%">';
data.each( function(item, index){
row_str += '<td>'+item+'</td>';
});
row_str += '<td><input type="submit" name="deleterow" id="deleterow" value="Delete" /></td></tr>';
var newRow = htmlToElements( row_str );
newRow.inject( table_body );
}
var htmlToElements = function(str){
return new Element('div', {html: '<table><tbody>' + str + '</tbody></table>'}).getElement('tr');
}
});
PHP
<?php
/**
* If nothing is being posted to this script redirect to
* our HTML page.
*/
if( ! $_POST ){
header('Location: newquote.php');
}
// create an empty array for our results
$results = array();
/**
* Stick the values from _POST into our results array
* while also stripping out any html tags
*
* This is where you would perform any required processing
* of the form data such as server side validation or updating
* a database.
*/
foreach( $_POST as $field ){
$results[] = strip_tags( $field );
}
// Echo our results as a JSON encoded string.
echo json_encode( $results );
?>
【问题讨论】:
-
“在每行的最后一列添加一个删除按钮,以便用户可以删除单个行” - 您是否在服务器端存储数据?这个删除操作发生在哪里?服务器端?客户端?两者都有?
-
不存储任何东西 SS - 并且操作将发生在 CS。添加删除按钮非常简单,它为行提供唯一的 id,因此用户只能在按下删除按钮时删除相应的行。感谢收看。
-
Bifter,您不需要任何 ID。当按下按钮时,只需向上遍历 DOM 到最近的 TR 元素并“删除”它...
-
嗨,J-P,感谢您的回答,JS 不是我的强项——您能在我上面的代码中展示吗?
标签: php javascript html mootools