C# 将用户名添加到ASP MVC标识后,RegisterView中出现SystemFormatException
我在应用程序中扩展了ASP MVC身份用户。 将用户名添加到模型中,添加到所有需要的Viewmodels中,并更新了我的视图和控制器 实体:C# 将用户名添加到ASP MVC标识后,RegisterView中出现SystemFormatException,c#,asp.net-mvc,asp.net-identity,C#,Asp.net Mvc,Asp.net Identity,我在应用程序中扩展了ASP MVC身份用户。 将用户名添加到模型中,添加到所有需要的Viewmodels中,并更新了我的视图和控制器 实体: public class ApplicationUser : IdentityUser { public string Username { get; set; } public string Country { get; set; } public string City { get; set; } public S
public class ApplicationUser : IdentityUser
{
public string Username { get; set; }
public string Country { get; set; }
public string City { get; set; }
public System.DateTime? BirthDate { get; set; }
...
视图模型:
public class RegisterViewModel : BaseViewModel
{
[Required]
[EmailAddress]
[Display(Name = "Email")]
public string Email { get; set; }
[Required]
[StringLength(30,ErrorMessage = "The {0] must be at least {2} characters long.",MinimumLength = 6)]
[Display(Name = "Username")]
public string Username { get; set; }
[Required]
[StringLength(100, ErrorMessage = "The {0} must be at least {2} characters long.", MinimumLength = 6)]
[DataType(DataType.Password)]
[Display(Name = "Password")]
public string Password { get; set; }
[DataType(DataType.Password)]
[Display(Name = "Confirm password")]
[Compare("Password", ErrorMessage = "The password and confirmation password do not match.")]
public string ConfirmPassword { get; set; }
}
我使用nuget数据包管理器cmd:Update database等更新了我的数据库
唯一一个我似乎无法解决的问题是,当我将TextBoxForFormGroup项添加到我的registerview中时
<div class="col-md-8">
@Html.TextBoxFor(m => m.Username, new { @class = "form-control" })
</div>
@TextBoxFor(m=>m.Username,新的{@class=“form control”})
它给出了以下错误:
System.FormatException occurred
HResult=0x80131537
Message=Input string was not in a correct format.
Source=mscorlib
StackTrace:
<Cannot evaluate the exception stack trace>
发生System.FormatException
HResult=0x80131537
Message=输入字符串的格式不正确。
Source=mscorlib
堆栈跟踪:
我尝试了很多方法来解决这个问题,但似乎找不到解决方案。您的示例中的这一行:
[StringLength(30,ErrorMessage = "The {0] must be at least {2} characters long.",MinimumLength = 6)]
您在
{0
之后有一个方括号。它应该是两个方括号:{0}
您是否尝试从消息中删除{0]和{2},我知道消息可能有格式,但该错误似乎与错误消息的格式有关