C# 尝试使用EF执行插入时，实体具有一些无效参数

我找不到使用EF执行insert语句的方法

出现了许多错误

代码都在这里，问题在于控制器：我已经试过了：

context.sistema_UsersCertified.Add(uc);
context.Set<sistema_UsersCertified>().Add(uc);

我有一个向控制器发送数据的视图：

public partial class tgpwebgedEntities : DbContext
{
    public tgpwebgedEntities()
        : base("name=tgpwebgedEntities")
    {
    }

    protected override void OnModelCreating(DbModelBuilder modelBuilder)
    {
        throw new UnintentionalCodeFirstException();
    }

    public DbSet<sistema_UsersCertified> sistema_UsersCertified { get; set; }

}

   public class UsersCertified
{
    public Guid userId;
    public int certTypeId;
    public string keyNumber;

    public UsersCertified(Guid uId, int ctId, string kn) {
        userId = uId;
        certTypeId = ctId;
        keyNumber = kn;
    }
}

<table>
                    <tr>
                    <td style="font-size:10px;">Habilitar Login com Cert. Digital:</td>
                    <td>@Html.CheckBoxFor(m => m.isCertified)</td>
                    </tr>
                    <tr>
                        <td class="smallField">Tipo do Certificado:</td>
                        <td>@Html.DropDownListFor(m => m.certType, new SelectList(ViewBag.certType, "id","type"))</td>
                    </tr>
                    <tr>
                        <td>Identificação:</td>
                        <td>@Html.TextBoxFor(m => m.identifier, new { @class = "validate[required]" }) @Html.ValidationMessage("awnserVal", "*")</td>
                    </tr> 
                </table>

using (tgpwebgedEntities context = new tgpwebgedEntities()) {
                {
 var userID = from u in context.aspnet_Users where u.UserName == model.UserName select u.UserId;
                    Guid uID = userID.First();
UsersCertified uc = new UsersCertified(uID, model.certType, model.identifier);

//HERE I NEED SET MY TABLE WITH MY MODEL... BUT SO MANY ERROR

   context.SaveChanges();
}

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哦，我认为可能是您正在创建一个UsersCertified类型的模型，然后试图将其保存为sistema_UsersCertified类型的数据库实体

试一试

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我只会使用context.sistema_UsersCertified.Add（uc）；这是一个异常还是一个生成错误-错误的确切文本是什么？什么是

sistema\u用户认证的
？可能必须是
DbSet
？
sistema_UsersCertified dbEntity = new sistema_UsersCertified();
dbEntity.CertType = ...
context.sistema_UsersCertified.Add(dbEntity);