先建立頁面
取名叫 create.cshtml
程式碼如下

@using System.Web.Mvc;
@model MVC30dayAdoNet.Models.Employee
@{
    ViewBag.Title = "新增員工";
}

<h2>新增員工</h2>

@using (Html.BeginForm("Create", "Employee", FormMethod.Post))
{
    @Html.AntiForgeryToken()

    <div class="form-group">
     帳號
        @Html.EditorFor(model => model.LoginID, new { htmlAttributes = new { @class = "form-control" } })
        @Html.ValidationMessageFor(model => model.LoginID, "", new { @class = "text-danger" })
    </div>

    <div class="form-group">
      姓名
        @Html.EditorFor(model => model.Username, new { htmlAttributes = new { @class = "form-control" } })
        @Html.ValidationMessageFor(model => model.Username, "", new { @class = "text-danger" })
    </div>

    <div class="form-group">
      性別
        <div>
            @Html.RadioButtonFor(model => model.Gender, "M", new { id = "genderMale" }) 男
            @Html.RadioButtonFor(model => model.Gender, "F", new { id = "genderFemale" }) 女
        </div>
        @Html.ValidationMessageFor(model => model.Gender, "", new { @class = "text-danger" })
    </div>

    <div class="form-group">
       電話
        @Html.EditorFor(model => model.PhoneNumber, new { htmlAttributes = new { @class = "form-control" } })
        @Html.ValidationMessageFor(model => model.PhoneNumber, "", new { @class = "text-danger" })
    </div>

    <div class="form-group">
        <input type="submit" value="新增" class="btn btn-primary" />
    </div>
}
<div>
    @Html.ActionLink("返回", "Index")
</div>

Controller 建立兩個方法
第一個如下

public ActionResult Create()
        {
            return View();
        }

第二個方法如下

  [ValidateAntiForgeryToken]
        public ActionResult Create(Employee Employee)
        {
            int count = 0;

            if (ModelState.IsValid)
            {

                string sql = $"Insert Into  Employee ([LoginID],[username],[gender],[phone_number]) Values('{Employee.LoginID}','{Employee.Username}','{Employee.Gender}','{Employee.PhoneNumber }')";

                DBHelper db = new DBHelper();
                count = db.ExecuteNonQuery(sql);
            }
            if (count > 0)
            {
                return RedirectToAction("Index");
            }
            return View(Employee);
        }

程式重點說明如下
[ValidateAntiForgeryToken]：這是一個屬性，
用於防止跨網站請求偽造（Cross-Site Request Forgery，CSRF）攻擊。確保請求是從合法發送的。

public ActionResult Create(Employee Employee)：這是控制器的操作方法，它處理用戶提交的表單數據。Employee 參數表示從前端表單提交的數據。

return RedirectToAction("Index");：如果新增操作成功，將用戶重定向到 Index ，顯示列表的頁面。

return View(Employee);：如果新增操作失敗，將返回到包含表單的 Create Views。

執行畫面如下

顯示新增畫面