laravel selectpicker selected value reset to first value. why?

Question

I have a selectpicker inside a table. I am passing the selected value into it but it shows the first value. why?

<td>
    <select name="select[]" id="select" data-selected="224515"
        class="selectpicker form-control select"  data-live-search="true"
        data-show-subtext="true" data-size="5" 
        data-container="body" title="Search Parts..">
        @foreach ($list as $p)
            <option data-id="{{ $p->id }}"
                data-subtext="{{ $p->code }}"
                data-tokens="{{ $p->id }}"
                data-name="{{ $p->name }}" data-price="{{ $p->price }}"
                data-code="{{ $p->code }}">
                {{ $p->name }}</option>
        @endforeach
    </select>
</td>

Answer 1

The selectpicker you're using does not support setting a value like that (documentation here) You're setting the data-selected attribute which is not supported.

You can use the @selected helper from Blade. Documentation on additional attributes

<td>
    <select name="select[]" id="select" data-selected="224515"
        class="selectpicker form-control select"  data-live-search="true"
        data-show-subtext="true" data-size="5" 
        data-container="body" title="Search Parts..">
        @foreach ($list as $p)
            <option data-id="{{ $p->id }}"

                @selected($p->id === 224515)

                data-subtext="{{ $p->code }}"
                data-tokens="{{ $p->id }}"
                data-name="{{ $p->name }}" 
                data-price="{{ $p->price }}"
                data-code="{{ $p->code }}">
                {{ $p->name }}
            </option>
        @endforeach
    </select>
</td>

I assumed the data-selected attribute is filled dynamically, so replace the id in the @selected with the dynamic stuff.