ASP.NET 核心 3.1 JQuery 将参数传递给 .load('@Url.Action 问题

Question

Razor 页面运行良好，除了将 id 传递给控制器。我可以获得部分视图来刷新divAppInfo。我在使用"$("#divAppInfo"(.load('@Url.Action("并将参数传递给它时遇到问题。

<div class="form-group">
<label class="col-md-2 control-label">App</label>
<div class="col-md-10">
<div class="input-group">
<select id="formApp" name="formApp" class="form-control" asp-items="@appSelectList" onchange="GetAppInfo()"></select>
</div>
</div>

<div id="divAppInfo"></div>
<script>
function GetAppInfo() {
var s = $("#formApp option:selected").text();
$("#divAppInfo").load('@Url.Action("GetApplicationInfo", "B2BPortal", new { area = "B2BPortal"})?id='+s);
}
</script>

我的控制器显示

[HttpGet]
public async Task<IActionResult> GetApplicationInfo(int id)

Answer 1

Changed: 
var s = $("#formApp option:selected").text();
To:
var s = $('#formApp').val();