javascript - 提醒 Javascript 作为操作的返回响应

Question

我该怎么做，例如，我在 users.cshtml View 中创建一个用户，它验证 ActionResult Create(RegisterModel um) 如果一切正常，我想返回 users.cshtml 但始终使用一个 javascript警报或类似的，具有来自操作的变量的值。我可以做这个吗？

我认为这是..

@using (Html.BeginForm()) {
@Html.ValidationSummary(true)

<fieldset>
    <legend>Crear Usuario</legend>

     <div class="editor-label">
        Username:
    </div>
    <div class="editor-field">
        @Html.TextBoxFor(model => model.UserName)
        @Html.ValidationMessageFor(model => model.UserName)
    </div>

    <div class="editor-label">
        Password:
    </div>
    <div class="editor-field">
        @Html.PasswordFor(model => model.Password)
        @Html.ValidationMessageFor(model => model.Password)
    </div>

            <div class="editor-label">
        Repite Password:
    </div>
    <div class="editor-field">
        @Html.PasswordFor(model => model.ConfirmPassword)
        @Html.ValidationMessageFor(model => model.ConfirmPassword)
    </div>
    </div>
    <p>
        <input type="submit" value="Crear" />
    </p>
</fieldset>

这在我的 Controller 操作中..

public ActionResult Create(RegisterModel um)
{

    if (um.Password == um.ConfirmPassword)
    {
        // Attempt to register the user
        MembershipCreateStatus createStatus;
        Membership.CreateUser(um.UserName, um.Password, um.Email, um.PasswordAnswer, um.PasswordQuestion, true, null, out createStatus);

        if (createStatus == MembershipCreateStatus.Success)
        {
            var alert = MembershipCreateStatus.Success.ToString();
        }
        else
        {
            ModelState.AddModelError("", ErrorCodeToString(createStatus));

            var alert = ErrorCodeToString(createStatus);
        }
    }
        //HERE IS WHERE I WANT TO RETURN TO /ADMIN/USERS BUT WITH AN ALERT WITH CONTAINING THE VALUE OF alert IN A JAVASCRIPT OR SIMILAR ALERT WINDOW

    return RedirectToAction("Users", "Admin"); ???????

我可以这样做吗？

Answer 1

您可以在重定向到 Users 操作之前将消息存储在 TempData 中:

TempData["message"] = "some message that you want to display";
return RedirectToAction("Users", "Admin");

然后在 Users.cshtml View (由您重定向到的 Users 操作返回)中测试是否存在此消息并显示 警报:

@if (TempData["message"] != null) {
    <script type="text/javascript">
        alert(@Html.Raw(Json.Encode(TempData["message"])));
    </script>
}