级联下拉列表未填充在 IE 9(代码点火器)中


cascading drop-down not populating in IE 9 (Codeigniter)

我在Codeigniter中创建了一个级联下拉列表,但第二个下拉列表没有填充在IE 9和IE 8中。以下是相关控制器:

public function buildDropEquipment($class)
    // This builds the dropdown field for newly added equipment
    {
         //set selected class id from POST
        $class = $this->input->post('class',TRUE);
        error_log("class variable: ".$class." 'n", 3, "/Applications/MAMP/logs/php_error.log");

        //run the query for the cities we specified earlier
        $this->load->model('admin/MEquipment');
        $equipmentData['equipmentDrop']=$this->MEquipment->getEquipmentByClass($class);
       $output = null;
        foreach ($equipmentData['equipmentDrop']->result() as $row)
        {
            //here we build a dropdown item line for each query result
            $output .= "<option value='".$row->type."'>".$row->type."</option>";
        }
        echo  $output;
    }

以下是我的观点:

<script type="text/javascript">
            $(document).ready(function() { 

                $("#class").change(function(){
                     /*dropdown post */
                    $.ajax({
                    url:"<?php echo base_url(); ?>index.php?/admin/buildDropEquipment",    
                    data: {class: $(this).val()},
                    type: "POST",
                    success: function(data){
                        $("#type").html(data);
                    }                  
                    });  
                });
            });       
        </script>      
    </head>
    <body>
        <!--machine class dropdown-->
        <?php $classDrop = array('none' => 'Select One') + $classDrop; ?>
        <dl>
        <dt><strong><?php echo form_label('Equipment Class', 'class');?></strong></dt>
        <dd>
        <?php echo form_dropdown('class', $classDrop,'','class="required" id="class"');  ?>
        </dd>
        </dl>
        <!--equipment type dropdown-->
        <dl>
        <dt><strong><?php echo form_label('Equipment Type', 'type');?></strong></dt>
        <dd>
        <select name="type" id="type">
        <option value="">Select Equipment Class Above</option>
        </select>
        </dd>
        </dl>

谁能告诉我为什么它在IE 9和8中可能无法正常工作?

因为'class'是javascript中的一个保留关键字,所以你应该把它改成class_name:

data: {class_name: $(this).val()},

这可以通过将IE 9的设置更改为兼容模式来修复IE 9。(IE 9 ->设置 -> F12 开发人员工具 ->浏览模式 ->然后选择 IE 9 兼容性)。它似乎适用于我们的 ADF 应用程序,带有级联下拉列表