@{
	ViewData["Title"] = "CommentUpdate";
}
<div class="text-center">
	<h2 class="display-4 mb-5">Обновить комметрарий</h2>
</div>
<form method="post">
	<div class="row  mb-3">
		<div class="col-4">Комментарий:</div>
		<div class="col-8">
			<select id="comment" name="comment" class="form-control" asp-items="@(new SelectList(@ViewBag.Comments,"Id", "Text"))"></select>
		</div>
	</div>
	<div class="row  mb-3">
		<div class="col-4">Заголовок:</div>
		<div class="col-8"><input type="text" id="title" name="title" /></div>
	</div>
	<div class="row  mb-3">
		<div class="col-4">Текст:</div>
		<div class="col-8"><input type="text" id="text" name="text" /></div>
	</div>
	<div class="row  mb-3">
		<div class="col-4">Сборка:</div>
		<div class="col-8">
			<select id="build" name="build" class="form-control" asp-items="@(new SelectList(@ViewBag.Builds,"Id", "Name"))"></select>
		</div>
	</div>
	<div class="text-center ">
		<input type="submit" value="Обновить" class="btn btn-success ps-5 pe-5" />
	</div>
</form>
<<script>
	 $('#comment').on('change', function () {
		 getData();
	 });

	 function getData() {
		 var commentId = $('#comment').val();
		 var commentData = @Html.Raw(Json.Serialize(ViewBag.Comments));
		 var selectedComment = commentData.find(function (comment) {
			 return comment.id == commentId;
		 });

		 if (selectedComment) {
			 $("#title").val(selectedComment.title);
			 $("#text").val(selectedComment.text);
			 $("#build").val(selectedComment.buildId).change(); // <!-- в работоспособности не уверен -->
		 }
	 }

</script>