Mein Dropdown-Menü ist unsichtbar

Question

Ich versuche, ein Dropdown-Formular in meinem Registrierungsformular zu erhalten. Der Rest des Formulars zeigt ordnungsgemäß und funktioniert gut, aber das Dropdown ist unsichtbar.

Ich habe überall gesucht und kann keine Lösung für mein Problem finden. Irgendwelche Hilfe?

<?php 

$this->pageTitle=Yii::app()->name . ' - Register'; 

function generateRandomString($length = 1) { 
    $characters = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'; 
    $charactersLength = strlen($characters); 
    $randomString = ''; 
    for ($i = 0; $i < $length; $i++) { 
     $randomString .= $characters[rand(0, $charactersLength - 1)]; 
    } 
    return $randomString; 
} 
$letter = generateRandomString(); 
$studentNumber = $letter.rand(1111111,9999999); 


$roleArray = array('student' => 'student'); 

$RolesMappingModel = Roles::model(); 
//$criteria=new CDbCriteria; 


if(Yii::app()->user->isGuest){ 
    //$userRole = Yii::app()->user->Roles; 
    $userRole = Yii::app()->user->getState("roles"); 
    switch($userRole) { 
     case "student": 
      $roleArray = array('2' => 'student'); 

      break; 
     case "lecturer": 
      $roleArray = array('3' => 'lecturer','2' => 'student'); 
      break; 
     case "superadmin": 
      $roleArray = array ('1' => 'superadmin', '3' => 'lecturer', '2' => 'student'); 
      break; 
    } 
} 

?> 

<h1>Kiosk. Register</h1> 

<div class="form"> 

<?php $form=$this->beginWidget('CActiveForm', array(
    'id'=>'Users-models-form', 
    // Please note: When you enable ajax validation, make sure the corresponding 
    // controller action is handling ajax validation correctly. 
    // There is a call to performAjaxValidation() commented in generated controller code. 
    // See class documentation of CActiveForm for details on this. 
    'enableAjaxValidation'=>false, 
    'htmlOptions'=>array('enctype'=>'multipart/form-data') 
)); ?> 

    <p class="note">Fields with <span class="required">*</span> are required.</p> 

    <?php echo $form->errorSummary($model); ?> 

    <div class="row"> 
     <?php echo $form->labelEx($model,'Fname'); ?> 
     <?php echo $form->textField($model,'Fname',array('size'=>60,'maxlength'=>500)); ?> 
     <?php echo $form->error($model,'Fname'); ?> 
    </div> 

    <div class="row"> 
     <?php echo $form->labelEx($model,'Lname'); ?> 
     <?php echo $form->textField($model,'Lname',array('size'=>60,'maxlength'=>500)); ?> 
     <?php echo $form->error($model,'Lname'); ?> 
    </div> 

    <div class="row"> 
     <?php echo $form->labelEx($model,'email'); ?> 
     <?php echo $form->textField($model,'email',array('size'=>60,'maxlength'=>500)); ?> 
     <?php echo $form->error($model,'email'); ?> 
    </div> 

    <div class="row"> 
     <?php echo $form->labelEx($model,'studentNumber'); ?> 
     <?php echo $form->textField($model,'studentNumber',array('size'=>60,'maxlength'=>500)); ?> 
     <?php echo $form->error($model,'studentNumber'); ?> 
    </div> 

    <div class="row"> 
     <?php echo $form->labelEx($model,'PassWord'); ?> 
     <?php echo $form->passwordField($model,'PassWord',array('size'=>60,'maxlength'=>1000)); ?> 
     <?php echo $form->error($model,'PassWord'); ?> 
    </div> 

    <div class="row"> 
     <?php echo $form->labelEx($model,'roles'); ?> 
     <?php echo $form->dropDownList($model, 'roles', $roleArray, array('options' => array('Student'=>array('selected'=>true))));?> 
     <?php echo $form->error($model,'roles'); ?> 

    </div> 

    <div class="row buttons"> 
     <?php echo CHtml::submitButton($model->isNewRecord ? 'Register' : 'Save'); ?> 
    </div> 

<?php $this->endWidget(); ?> 

</div><!-- form --> 

Answer 1

Add CSS

opacity:1; 
visibility:visible;