问将窗体值传递给下一个窗体元素，而不提交表单。

EN

{{-- Choose a category from the radios provided, this is where I need to get the $category->id and pass it to the next element for the sub category selection        
--}}

            <div class="form-group">
                <p><b>Choose a category:</b></p>

                @foreach (App\Http\Models\GalleryCategories::all() as $category)

                    {!! Form::label('category_id', $category->name) !!}
                    {!! Form::radio('category_id', $category->id, null, ['class' => 'form-field']) !!}

                @endforeach
            </div>

            {{-- Using the category id passed to this form-group I can then access only the sub categories
                 that have a gallery_categories_id = category --}}

            <div class="form-group">
                <p><b>Choose a sub category:</b></p>

                @foreach (App\Http\Models\GallerySubCategories::all() as $sub_category)

                    {!! Form::label('sub_category_id', $sub_category->name) !!}
                    {!! Form::radio('sub_category_id', $sub_category->id, null, ['class' => 'form-field']) !!}

                @endforeach
            </div>