PIbd-23_Starostin_I.K._Ship.../ShipyardClientApp/Views/Home/Create.cshtml

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@{
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">корабль:</div>
<div class="col-8">
<select id="ship" name="ship" class="form-control" asp-items="@(new SelectList(@ViewBag.Ships,"Id", "ShipName"))"></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>
$('#ship').on('change', function () {
check();
});
$('#count').on('change', function () {
check();
});
function check() {
var count = $('#count').val();
var ship = $('#ship').val();
if (count && ship) {
$.ajax({
method: "POST",
url: "/Home/Calc",
data: { count: count, ship: ship },
success: function (result) {
$("#sum").val(result);
}
});
};
}
</script>