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我正在使用 PHP。当用户从组合框中选择任何项目时，相应的项目将显示在第二个组合框中。我需要将第二个组合框值存储到文本框中以供进一步使用。

  <script type="text/javascript" src="jquery.min.js"></script>
        <script type="text/javascript">
            $(function(){
                $('#combo').change(function(){
                    console.log($(this));
                    $.get( "abc.php" , { option : $(this).val() } , function ( data ) {
                        $ ( '#comboB' ) . html ( data ) ;
                    } ) ;
                });
            });
        </script>
    </head>
    <body>

                <form>
                    <select name="combo" id="combo">
                        <option value="">-- Select</option>
                        <option value="1"> Personnel</option>
                        <option value="2"> Area Layout</option>
                          <option value="3">Conference Rooms</option>
                            <option value="4"> Small Office</option>
                             </select>

now abc.php
<?php
    $Options = Array ( 
        1 => Array ( 
        '--',
            '15 x 20 (300 sq. ft.)' ,
            '15’ x 15’ (225 sq. ft.)',
            ' 10’ x 15’ (150 sq. ft.)',
            '12’ x 10’ (120 sq. ft.)'
        ) , 
        2 => Array ( 
            '10’ x 10’ (100 sq. ft.)' ,
            ' 8’ x 6’ (48 sq. ft.)',
            '5’ x 5’ (25 sq. ft.)'
        ) ,
         3 => Array ( 
            '15’ x 25’ (375 sq. ft.)' ,
            '15’ x 20’ (300 sq. ft.)',
            '15’ x 15’ (225 sq. ft.)'
        ) ,
         4 => Array ( 
            '8’ x 8’ (64 sq. ft.)' ,
            '8’ x 6’ (48 sq. ft.)',
            '6’ x 6’ (36 sq. ft.)',
            '4’ x 6’ (24 sq. ft.)'
        ) 
    ) ; 

    forEach ( $Options [ $_GET [ 'option' ] ] as $Item ) {
        printf ( '<option value="%s">%s</option>' , $Item , $Item ) ;
    }
    ?>
4

1 回答 1

0

像这样的javascript代码：

$('#comboB').change(function(){ $('#textbox').val($(this).val()); });

会成功的

编辑关于如何修改 HTML 的示例

<script type="text/javascript" src="jquery.min.js"></script>
        <script type="text/javascript">
            $(function(){
                $('#combo').change(function(){
                    console.log($(this));
                    $.get( "abc.php" , { option : $(this).val() } , function ( data ) {
                        $ ( '#comboB' ) . html ( data ) ;
                    } ) ;
                });
                $('#comboB').change(function(){ $('#textboxB').val($(this).val()); });
            });
        </script>
    </head>
    <body>

                <form>
                    <select name="combo" id="combo">
                        <option value="">-- Select</option>
                        <option value="1"> Personnel</option>
                        <option value="2"> Area Layout</option>
                          <option value="3">Conference Rooms</option>
                            <option value="4"> Small Office</option>
                             </select>
    </form>
    <select id="comboB"></select>
    <input type="textbox" id="textboxB" value="" />
于 2013-05-04T12:13:40.787 回答