Question

我有一个联系我们表格，可以在网站上重复使用

规则是如果某些字段已预先填充，即电子邮件地址或主题已知，则不应显示这些字段，即成为HiddenFor

对于电子邮件，这可以正常工作，但主题却没有，因为它们是MaxLength为100所需的相同字符串字段

@model List<TJI.ObjectModel.Entities.Form>
...
    if (string.IsNullOrEmpty(Model.Email))
    {
        <div class="form-group">
            @Html.LabelFor(model => model.Email, new {@class = "control-label  col-sm-3 col-md-2"})
            <div class="col-sm-8 col-md-4">
                @Html.TextBoxFor(model => model.Email, new {@class = "form-control"})
            </div>
            <div class="col-sm-1 col-md-1">
                @Html.ValidationMessageFor(m => m.Email, "*")
            </div>
        </div>
    }
    else
    {
        <div>
            @Html.HiddenFor(model => model.Email)
        </div>
    }

    if (string.IsNullOrEmpty(Model.Subject))
    {
        <div class="form-group">
            @Html.LabelFor(model => model.Subject, new {@class = "control-label  col-sm-3 col-md-2"})
            <div class="col-sm-8 col-md-9">
                @Html.TextBoxFor(model => model.Subject, new {@class = "form-control"})
            </div>
            <div class="col-sm-1 col-md-1">
                @Html.ValidationMessageFor(model => model.Subject, "*")
            </div>
        </div>
    }        
    else
    {
        <div>
            @Html.HiddenFor(model => model.Subject)
        </div>
    }
...

public class Form : EntityBase
{
...
    [Required]
    [MaxLength(100)]
    public string Email { get; set; }

    [Required]
    [MaxLength(100)]
    public string Subject { get; set; }
....
}

Answer 1

毕竟我意识到我没有将主题传递给控制器中的ViewModel

public ActionResult Contact(string contactTypeEnum, string subject, string body, string department )
    {
        if (string.IsNullOrEmpty(department))
        {
            department = Department.None.ToString();
        }

        var user = GetCurrentUser();

        var model = new FormViewModel
        {
            Subject = subject,
            Department = (Department) Enum.Parse(typeof (Department), department)
        };

        if (user != null)
        {
            model.Name = user.Name;
            model.Email = user.Email;
        }

        CacheEntity(model);

        return IsAjax() ? (ActionResult) PartialView("ContactDetail", model) : View(model);
    }

使用MVC Razor语法的奇怪行为

1 个答案: