@{
    ViewData["Title"] = "CreateOrder";
}
<div class="text-center">
    <h2 class="display-4">Добавление заказа</h2>
</div>
<style>
    .row{
        margin-top: 10px;
    }
</style>
<form method="post">
    <div class="row">
        <div class="col-4">Название заказа:</div>
        <div class="col-8">
            <input type="text" name="OrderName" id="OrderName" />
        </div>
    </div>
    <div class="row">
        <div class="col-4">Описание заказа:</div>
        <div class="col-8">
            <input type="text" name="DescriptionOrder" id="DescriptionOrder" />
        </div>
    </div>
    <div class="row">
        <div class="col-4">Сумма:</div>
        <div class="col-8">
            <input type="text" name="Sum" id="Sum" />
        </div>
    </div>
    <div class="row">
        <div class="col-4">Блюда:</div>
        <div class="col-8">
             <select id="dishes" name="dishes" class="form-control" asp-items="@(new SelectList(@ViewBag.Dishes, "Id", "DishName"))" multiple></select>
        </div>
    </div>
    <div class="row">
        <div class="col-8"></div>
        <div class="col-4">
            <input type="submit" value="Добавить" class="btn btn-primary" />
        </div>
    </div>
</form>