回发后用MVC C#显示弹出确认消息

Question

使用MVC框架与C#编码.视图以标准HTML代码编写.一旦用户单击提交按钮,我需要一条确认消息"您的消息已被发送"

这是控制器:

public ActionResult Index(ContactViewModel contactVM){
        if (!ModelState.IsValid)
        {
            string url = Request.UrlReferrer.AbsolutePath+ "#contact";

            return View();
        }
        else
        {
            var contact = new Contact
            {
                Name = contactVM.Name,
                Email = contactVM.Email,
                Subject = contactVM.Subject,
                Message = contactVM.Message
            };
            new Email().Send(contact);
            return RedirectToAction("Index");
        }

这是视图:

<input type="submit" class="submit_btn left" name="Submit" id="submit" value="Submit"/>
<input type="reset" class="submit_btn right" name="Reset" id="reset" value="Reset" />

请帮助.

Answer 1

而不是RedirectToAction(),返回View:

    new Email().Send(contact);

    ViewBag.Message = "Message Sent"; 

    return View();

在视图中:

@if(ViewBag.Message != null)
{
<script>

$(document).ready(function(){

alert('@ViewBag.Message');

});

</script>

}