在我的项目中我收到错误我不知道为什么我不能将列表转换为类型system.array？
System.InvalidCastException：无法转换类型的对象 ＆＃39; System.Collections.Generic.List`1 [DataLayer.Appoinment]＆＃39;输入＆＃39; System.Array＆＃39;。
public class User: IdentityUser
{
public User()
{
**//when I comment these codes my project is fired.**
this.Appoinments = new List<Appoinment>();
this.Offices = new List<Office>();
this.Schedules = new List<Schedule>();
this.Secretaries = new List<Secretary>();
}
public User(string userName) : base(userName)
{
}
[Display(Name = "نام")]
[MaxLength(250)]
[Required(ErrorMessage = " لطفآ {0} را وارد کنید")]
public string FirstName { get; set; }
[Display(Name = "نام خانوادگی")]
[MaxLength(250)]
[Required(ErrorMessage = " لطفآ {0} را وارد کنید")]
public string LastName { get; set; }
[Display(Name = "جنسیت")]
[Required(ErrorMessage = " لطفآ {0} را وارد کنید")]
public bool? Gender { get; set; }
[Display(Name = "تاریخ درج")]
public DateTime? CreateDate { get; set; }
[Display(Name = "تاریخ بروزرسانی")]
public DateTime? UpdateDate { get; set; }
[Display(Name = "وضعیت")]
public bool? IsActive { get; set; }
[MaxLength(500)]
[Display(Name = "آدرس")]
public string Address { get; set; }
[MaxLength(250)]
[Required(ErrorMessage = " لطفآ {0} را وارد کنید")]
[Display(Name = "شماره تماس")]
public virtual IList<Appoinment> Appoinments { get; set; }
public virtual IList<Office> Offices { get; set; }
public virtual IList<Schedule> Schedules { get; set; }
public virtual IList<Secretary> Secretaries { get; set; }
}
public class Appoinment
{
[Key]
public int AppointmentID { get; set; }
[MaxLength(300)]
public string TrakingCode { get; set; }
public DateTime? Shift { get; set; }
public bool? Status { get; set; }
public DateTime? Datepick { get; set; }
public DateTime? CreatedAt { get; set; }
public DateTime? UpdatedAt { get; set; }
public virtual User User { get; set; }
public virtual Schedule Schedule { get; set; }
}
==============================
@model DataLayer.User
@{
ViewBag.Title = "مدیریت کاربران";
}
@*<h2>افزودن کاربران</h2>*@
<br />
<div>
@Html.ActionLink("بازگشت به صفحه اصلی", "Index")
</div>
<!-- /.box -->
@using (Html.BeginForm("Create", "Users", FormMethod.Post))
{
@Html.AntiForgeryToken();
<div class="row">
<div class="col-md-8 col-lg-pull-2">
<div class="box box-danger">
<div class="box-header">
<h2 class="box-title">افزودن کاربران</h2>
</div>
<div class="box-body">
@Html.ValidationSummary(true, "", new { @class = "text-danger" })
<div class="form-group">
<label>نام</label>
<div class="input-group">
<div class="input-group-addon">
<i class="fa fa-info"></i>
</div>
@Html.EditorFor(model => model.UserName, new { htmlAttributes = new { @class = "form-control", Type = "text", name = "Firstname", placeholder = "نام" } })
@Html.ValidationMessageFor(model => model.UserName, "", new { @class = "text-danger" })
@*<input type="text" class="form-control" placeholder="نام " name="FirstName">*@
</div>
<!-- /.input group -->
</div>
<div class="form-group">
<label>نام خانوادکی</label>
<div class="input-group">
<div class="input-group-addon">
<i class="fa fa-info"></i>
</div>
@Html.EditorFor(model => model.LastName, new { htmlAttributes = new { @class = "form-control", type = "text", name = "LastName", placeholder = "نام خانوادگی" } })
@Html.ValidationMessageFor(model => model.LastName, "", new { @class = "text-danger" })
</div>
<!-- /.input group -->
</div>
<!-- /.form group -->
<!-- phone mask -->
<div class="form-group">
<label>رمز عبور</label>
<div class="input-group">
<div class="input-group-addon">
<i class="fa fa-key"></i>
</div>
@Html.EditorFor(model => model.PasswordHash, new { htmlAttributes = new { @class = "form-control", type = "password", name = "Password", placeholder = "...." } })
@Html.ValidationMessageFor(model => model.PasswordHash, "", new { @class = "text-danger" })
</div>
<!-- /.input group -->
</div>
<!-- /.form group -->
<!-- phone mask -->
<div class="form-group">
<label>ایمیل</label>
<div class="input-group">
<div class="input-group-addon">
<i class="fa fa-envelope"></i>
</div>
<!-- /.input group -->
@Html.EditorFor(model => model.Email, new { htmlAttributes = new { @class = "form-control", type = "email", name = "Password", placeholder = "example@example.com" } })
@Html.ValidationMessageFor(model => model.Email, "", new { @class = "text-danger" })
</div>
<!-- /.input group -->
</div>
<div class="row">
<div class="col-md-6">
<label>جنسیت</label>
<div class="form-group">
<div class="radio">
@Html.DropDownListFor(model => model.Gender,
new SelectListItem[] { new SelectListItem() { Text = "مرد", Value = "True" }, new SelectListItem() { Text = "زن", Value = "False" } }
, new { @class = "form-control" })
@Html.ValidationMessageFor(model => model.Gender, "", new { @class = "text-danger" })
</div>
</div>
</div>
<div class="col-md-6">
<label>وضعیت</label>
<div class="form-group">
<div class="checkbox">
@Html.DropDownListFor(model => model.Gender,
new SelectListItem[] { new SelectListItem() { Text = "فعال", Value = "True" }, new SelectListItem() { Text = "غیرفعال", Value = "False" } }
, new { @class = "form-control" })
@Html.ValidationMessageFor(model => model.Gender, "", new { @class = "text-danger" })
</div>
</div>
</div>
</div>
<div class="form-group">
<label>شماره همراه</label>
<div class="input-group">
<div class="input-group-addon">
<i class="fa fa-phone"></i>
</div>
@Html.EditorFor(model => model.PhoneNumber, new { htmlAttributes = new { @class = "form-control", type = "tel", name = "PhoneNumber", placeholder = "شماره همراه..." } })
@Html.ValidationMessageFor(model => model.PhoneNumber, "", new { @class = "text-danger" })
</div>
<!-- /.input group -->
</div>
<form role="form">
<!-- textarea -->
<div class="form-group">
<label>آدرس</label>
@Html.TextAreaFor(model => model.Address, new { @class = "form-control", type = "text", cols = "4", rows = "4", name = "Address", placeholder = "آدرس..." })
@Html.ValidationMessageFor(model => model.Address, "", new { @class = "text-danger" })
@*<textarea class="form-control" rows="3" placeholder="آدرس ..."></textarea>*@
</div>
</form>
<!-- /.form group -->
<div class="row">
<div class="col-md-6">
<button type="button" class="btn btn-danger btn-flat btn-md"> انصراف</button>
<button type="submit" class="btn btn-success btn-flat btn-md"><span class="fa fa-plus"></span> افزودن کاربر جدید </button>
</div>
</div>
</div>
<!-- /.box-body -->
</div>
</div>
</div>
}
答案 0 :(得分：2)
您在User课程中缺少电话号码属性“شمارهتماس”。