laravel刀片选择选项将全部选中
我试图将laravel刀片选择选项将全部选中,laravel,laravel-blade,Laravel,Laravel Blade,我试图将select元素的选项标记为selected,但它们都被选中了 刀片式HTML <h1>value = {{ $entity->field ?? 'this is new' }}</h1> <select name="field"> <option value="option_a" @if ($entity->field ?? '' == 'option_a') selected=&qu
select
元素的选项标记为selected,但它们都被选中了
刀片式HTML
<h1>value = {{ $entity->field ?? 'this is new' }}</h1>
<select name="field">
<option value="option_a" @if ($entity->field ?? '' == 'option_a') selected="selected" @endif>Option A</option>
<option value="option_b" @if ($entity->field ?? '' == 'option_b') selected="selected" @endif>Option B</option>
<option value="option_c" @if ($entity->field ?? '' == 'option_c') selected="selected" @endif>Option C</option>
</select>
所选语法如下所示:
<option value="audi" selected>Audi</option>
奥迪
因此,请尝试:
<h1>value = {{ $entity->field ?? 'this is new' }}</h1>
<select name="field">
<option value="option_a" @if ($entity->field ?? '' == 'option_a') selected @endif>Option A</option>
<option value="option_b" @if ($entity->field ?? '' == 'option_b') selected @endif>Option B</option>
<option value="option_c" @if ($entity->field ?? '' == 'option_c') selected @endif>Option C</option>
</select>
value={{$entity->field??'这是新的'}}
字段??“==”选项a’’选择@endif>选项a
字段??“==”选项b')已在@endif>选项b中选择
字段??“==”选项c')已在@endif>选项c中选择
看起来您有逻辑问题。看起来你要做一个三元数,然后决定一个标准的if检查,但是可能在代码中留下了一些三元数的逻辑
本部分:
@if ($entity->field ?? '' == 'option_a') selected="selected" @endif
似乎缺少了?
的另一面,即:
,因此将始终计算为true
相反,请尝试:
@if ($entity->field == 'option_a') selected @endif
??“代码>部分如果在创建记录时,我没有$entity
设置OK,但仍然存在相同的问题。尝试@if(isset($entity)&&&$entity->field=='option_a')
@if ($entity->field == 'option_a') selected @endif