PIbd-23-Salin-O.A.-IceCreamShop/IceCreamShop/IceCreamShopClientApp/Views/Home/Create.cshtml

@{
	ViewData["Title"] = "Create";
}

<div class="text-center">
	<h2 class="display-4">Создание заказа</h2>
</div>
<form method="post">
	<div class="row">
		<div class="col-4">Мороженное:</div>
		<div class="col-8">
			<select id="icecream" name="icecream" class="form-control" asp-items="@(new SelectList(@ViewBag.IceCreams,"Id", "IceCreamName"))"></select>
		</div>
	</div>
	<div class="row">
		<div class="col-4">Количество:</div>
		<div class="col-8">
			<input type="text" name="count" id="count" />
		</div>
	</div>
	<div class="row">
		<div class="col-4">Сумма:</div>
		<div class="col-8">
			<input type="text" id="sum" name="sum" readonly />
		</div>
	</div>
	<div class="row">
		<div class="col-8"></div>
		<div class="col-4">
			<input type="submit" value="Создать" class="btn
btn-primary" />
		</div>
	</div>
</form>
<script>
	$('#icecream').on('change', function () {
		check();
	});
	$('#count').on('change', function () {
		check();
	});

	function check() {
		var count = $('#count').val();
		var icecream = $('#icecream').val();
		if (count && icecream) {
			$.ajax({
				method: "POST",
				url: "/Home/Calc",
				data: { count: count, icecream: icecream },
				success: function (result) {
					$("#sum").val(result);
				}
			});
		};
	}
</script>