yii2下拉框带搜索功能 yii2.0视频教程 yii框架视频教程 yii官

<code><span>composer require kartik-v/yii2-widget-<span>select2 <span>"<span>@dev"
<span>#特别说明，因为这里安装的dev版本，也就是开发版本，不稳定版本，如果你的项目是git托管的，composer安装下来之后这里记得删掉 \vendor\kartik-v\yii2-widget-select2目录下的.git文件，不然你提交不上去的哦
</span></span></span></span></span></code>

<code>use kartik\select2\Select2; 
//$data是键值对数组哦，key-value ,下面所声明的所有$data均为键值对数组，以该数组为例 
$data = [<span>2 => <span>'widget', <span>3 => <span>'dropDownList', <span>4 => <span>'yii2']; 
echo $form->field($model, <span>'title')->widget(Select2::classname(), [  
    <span>'data' => $data, 
    <span>'options' => [<span>'placeholder' => <span>'请选择 ...'], 
]);
</span></span></span></span></span></span></span></span></span></span></span></code>

<code><span>use <span>kartik\<span>select2\<span>Select2; 
<span>echo Select2::widget([ <span>'name' => <span>'title', 
    <span>'data' => $data, 
    <span>'options' => [<span>'placeholder' => <span>'请选择...'] 
]);

</span></span></span></span></span></span></span></span></span></span></span></code>

<code><span>use <span>kartik\<span>select2\<span>Select2; 
<span>echo Select2::widget([ 
    <span>'name' => <span>'title', 
    <span>'value' => <span>2, 
    <span>'data' => $data, 
    <span>'options' => [<span>'placeholder' => <span>'请选择...'] 
]);
<span>#但是如果你的表单是ActiveForm生成的，但是往往字段不是表字段怎么办呢？更好办啦，以上面的为例，你只需要指定$model->title = ['title1', 'title2'];即可

</span></span></span></span></span></span></span></span></span></span></span></span></span></span></code>