在验证摘要中仅显示服务器端错误

Question

我有以下的看法：

@model MyProject.Models.RegisterViewModel

<div class="content">
<div class="wrapper">
    <h2>E-Bill Saver Registration</h2>
    <hr />

    <div class="columns top-gap">
        <div class="first cell width-6 dark-blue-headings">
            @using (Html.BeginForm())
            {
                @Html.AntiForgeryToken()
                @*@Html.ValidationSummary("", new { @class = "text-danger" })*@
                <div class="form-horizontal">                        
                    <div class="form-group">
                        @Html.Label("Account Number", htmlAttributes: new { @class = "control-label col-md-2 bold" })
                        <br />@Html.ValidationMessageFor(model => model.AccountNo, "", new { @class = "text-danger" })
                        <div class="col-md-10">
                            @Html.EditorFor(model => model.AccountNo, new { htmlAttributes = new { @class = "form-control input" } })
                        </div>
                    </div>

                    <div class="form-group">
                        @Html.Label("MPNumber", htmlAttributes: new { @class = "control-label col-md-2 bold" })
                        <br />@Html.ValidationMessageFor(model => model.MPNumber, "", new { @class = "text-danger" })
                        <div class="col-md-10">
                            @Html.EditorFor(model => model.MPRN, new { htmlAttributes = new { @class = "form-control input" } })
                        </div>
                    </div>

                    <div class="form-group">
                        @Html.Label("Email Address", htmlAttributes: new { @class = "control-label col-md-2 bold" })
                        <br />@Html.ValidationMessageFor(model => model.Email, "", new { @class = "text-danger" })
                        <div class="col-md-10">
                            @Html.EditorFor(model => model.Email, new { htmlAttributes = new { @class = "form-control input" } })
                        </div>
                    </div>

                    <div class="form-group">
                        @Html.Label("Confirm Email Address", htmlAttributes: new { @class = "control-label col-md-2 bold" })
                        <br />@Html.ValidationMessageFor(model => model.ConfirmEmail, "", new { @class = "text-danger" })
                        <div class="col-md-10">
                            @Html.EditorFor(model => model.ConfirmEmail, new { htmlAttributes = new { @class = "form-control input" } })
                        </div>
                    </div>

                    <div class="form-group">
                        @Html.Label("Password", htmlAttributes: new { @class = "control-label col-md-2 bold" })
                        <br />@Html.ValidationMessageFor(model => model.Password, "", new { @class = "text-danger" })
                        <div class="col-md-10">
                            @Html.EditorFor(model => model.Password, new { htmlAttributes = new { @class = "form-control input" } })
                        </div>
                    </div>

                    <div class="form-group">
                        @Html.Label("Confirm Password", htmlAttributes: new { @class = "control-label col-md-2 bold" })
                        <br />@Html.ValidationMessageFor(model => model.ConfirmPassword, "", new { @class = "text-danger" })
                        <div class="col-md-10">
                            @Html.EditorFor(model => model.ConfirmPassword, new { htmlAttributes = new { @class = "form-control input" } })
                        </div>
                    </div>

                    <div class="form-group">
                        <div class="col-md-offset-2 col-md-10">
                            <input type="submit" value="Register" class="opc_button" />
                        </div>
                    </div>
                </div>
            }
        </div>
    </div>       
</div>

​

如果在任何字段上存在验证错误，则会按照预期和需要在标签下显示错误消息。然而，在我的控制器上，我有一些自定义的逻辑错误，我将它们添加到模型状态中，如下所示：

else
                {
                    //This email address is already assigned to a user      
                    ModelState.AddModelError("Email Address : ", "Error! You must enter an email address that is unique to your account.");
                    return View(model);
                }

如果我在我的页面上取消对validationsummary的注释，那么它将显示自定义服务器端错误，但它也将在标签下显示我想要的单个验证错误。有没有办法将验证摘要设置为忽略单独列出的值，而只返回服务器端验证错误？

Answer 1

ModelState.AddModelError方法的第一个字符串参数是稍后用于将消息绑定到模型属性的键。

如果要在电子邮件标签旁边显示错误消息，请使AddModelError第一个参数与您的属性名匹配：

ModelState.AddModelError("Email", "Error! Email already used...");