3

Hi I am a reader and getting a lot of help here. This is my first post. I know this could be a similar question, but I still could not find answer for it. Can someone please help me to write a JavaScript / jquery code: if a user modifies any of these fields, then the dbFlag value will set to "U" (init. as “N”). I am struggling to produce the correct code. Note: the data rows are populated from DB, so it could be 1 row, or N rows. Highly appreciate your time and efforts.

<!DOCTYPE html>
<html>
    <head>
    </head>
    <body>
        <form name="form1" id="form1" action="saveData" method="POST">
            <table id="dataTable" border="1">
                <tbody>
                    <tr>
                        <th>Badge #</th>
                        <th>turn #</th>
                        <th>Comment</th>
                    </tr>   
                    <tr>
                        <td><input type="text" size="7" name="badge" id="badge" value="000000" /></td>
                        <td>
                            <select name="descMpoint" id="descMpoint2">
                                <option value="1">1</option>
                                <option value="2">2</option>
                                <option value="3">3</option>
                            </select>                    
                        </td>
                        <td><textarea name="comment" cols="50" rows="2">txt area</textarea></td>             
                        <td><input type="hidden" name="dbFlag" id="dbFlag" value="N" />     
                    </tr>
                </tbody>
            </table>
            <br>
            <span class="tab"><input type="submit" name="updateData" value="Submit" id="updateData"/></span>
            <br><hr>
        </form>
    </body>
</html>
4

2 回答 2

11

使用change事件：

$('#form1').on('change', 'input, select, textarea', function(){
    $(this).closest('tr').find('input[name="dbFlag"]').val('U');
});

jsFiddle & .change()

于 2013-03-27T14:35:45.163 回答
0

在 jQuery 中，使用更改事件函数。请注意，当相关字段未聚焦/模糊时，该函数会触发。

例子：

$("#badge").change(function(){
    var currentElement = $(this); //reference to the element that was changed
    //etc. etc.
});

JSFiddle：http: //jsfiddle.net/kfdNs/

于 2013-03-27T14:37:05.167 回答