php Yii2 ActiveForm 字段选项不起作用
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Yii2 ActiveForm fields options does not work
提问by SaidbakR
According to the official tutorialof Yii2. I have created a view for the entry form:
根据Yii2的官方教程。我为输入表单创建了一个视图：
<?php
use yii\helpers\Html;
use yii\widgets\ActiveForm;
?>
<?php $form = ActiveForm::begin(); ?>
<!-- GET Attention for the next Line -->
<?= $form->field($model, 'name')->label('Your Name'); ?>
<?= $form->field($model, 'email'); ?>
<div class="form-group">
<?= Html::submitButton('Send!', ['class' => 'btn btn-primary']); ?>
</div>
<?php ActiveForm::end(); ?>
At this point everything is well fine. However, when I try to use the parameter optionsof the fieldmethod as follows:
在这一点上，一切都很好。但是，当我尝试使用options该field方法的参数时：
<?= $form->field($model, 'name', ['style' => 'color:red'])->label('Your Name'); ?>
I have got the error:
我有错误：
Unknown Property – yii\base\UnknownPropertyException
Setting unknown property: yii\widgets\ActiveField::style
未知属性 – yii\base\UnknownPropertyException
设置未知属性：yii\widgets\ActiveField::style
The official api documentationstated that method of ActiveForm takes a third parameter called options
官方 api 文档指出 ActiveForm 的方法采用称为选项的第三个参数
Could anybody explain me why this error has been occurred?!
有人能解释一下为什么会发生这个错误吗？！
回答by Mihai P.
Try
尝试
<?= $form->field($model, 'name')->textInput(['style' => 'color:red'])->label('Your Name'); ?>
It is a little hard to explain, when you do $form->field($model, 'name')without specifying the field type you are actually asking for a textInput. But that does not mean that you should ask from ->field(to take the params the same way as ->textInput(does. If you need to put some special params for the field you have to use the explicit ->textInput(['style' => 'color:red'])
有点难以解释，当您$form->field($model, 'name')没有指定您实际要求 textInput 的字段类型时。但这并不意味着您应该要求 from->field(以相同的方式获取参数->textInput(。如果您需要为该字段放置一些特殊参数，则必须使用显式->textInput(['style' => 'color:red'])
回答by tsanchev
Try this code:
试试这个代码：
<?= $form->field($model, 'name', [ 'options' => [ 'style' => 'color: red']])->label('Your Name'); ?>
You've got this error
你有这个错误
Unknown Property – yii\base\UnknownPropertyException
Setting unknown property: yii\widgets\ActiveField::style
because there is no such property style. You should use 'options' and pass 'style' as sub-array
因为没有这样的属性样式。您应该使用“选项”并将“样式”作为子数组传递
回答by Jose Manuel Kun
This way is for especify options on all the "field" (that includes the "label" and the "input") but 'style'=>'color:red' only affects to label in this way, I use this for especify class options instead of color:
这种方式用于所有“字段”（包括“标签”和“输入”）上的指定选项，但 'style'=>'color:red' 仅影响以这种方式标记，我将其用于 especify 类选项而不是颜色：
<?= $form->field($model, 'name', [ 'options' => [ 'class' => 'col-xs-8']])->label('Your Name'); ?>
If you want to especify options for one of them (label or input)you can do it separately, like this:
如果您想为其中之一（标签或输入）指定选项，您可以单独进行，如下所示：
<?= $form->field($model, 'name')->textInput(['style' => 'color:red'])->label('Your Name',['style'=>'color:blue']); ?>
Yii is so flexible, that is what i like of it.
Yii 非常灵活，这就是我喜欢它的地方。
