Question

请参阅下面我的Model类，我的控制器操作和我的视图。当我从我的视图编辑时，我遇到了异常：发生了参照完整性约束违规：定义参照约束的属性值在关系中的主体和依赖对象之间不一致。

我已经问过这个问题，但我没有答案;请帮助!!

public partial class Organization : ILockable, IAuditable, IEntity
{
    /*** Construtor(s) ***/
    public Organization()
    {

    }

    public Organization(Party obj)
        : this()
    {
        Party = obj;
    }


    /*** Public Members ***/
    [Key, Display(Name = "Id")]
    public int PartyId { get; set; }


    /* IEntity */
    public string Caption { get; set; }

    public string NameInUse { get; set; }

    public string Description { get; set; }


    /* IAuditable */
    [NotMapped, ScaffoldColumn(false)]
    public System.DateTimeOffset Created
    {
        get { return Party.Created; }
        set { Party.Created = value; }
    }

    [NotMapped, ScaffoldColumn(false)]
    public string CreatedBy
    {
        get { return Party.CreatedBy; }
        set { Party.CreatedBy = value; }
    }

    [NotMapped, ScaffoldColumn(false)]
    public Nullable<System.DateTimeOffset> LastMod
    {
        get { return Party.LastMod; }
        set { Party.LastMod = value; }
    }

    [NotMapped, ScaffoldColumn(false)]
    public string LastModBy
    {
        get { return Party.LastModBy; }
        set { Party.LastModBy = value; }
    }

    [NotMapped, Display(Name = "Del?")]
    public bool IsSoftDeleted
    {
        get { return Party.IsSoftDeleted; }
        set { Party.IsSoftDeleted = value; }
    }

    [NotMapped, ScaffoldColumn(false)]
    public Nullable<System.DateTimeOffset> SoftDeleted
    {
        get { return Party.SoftDeleted; }
        set { Party.SoftDeleted = value; }
    }

    [NotMapped, ScaffoldColumn(false)]
    public string SoftDeletedBy
    {
        get { return Party.SoftDeletedBy; }
        set { Party.SoftDeletedBy = value; }
    }

    /* ILockable */
    public string GetTableName()
    {
        return "Organization";
    }

    public int GetLockId()
    {
        return this.PartyId;
    }

    /* Navigation Properties */
    /// <summary>
    /// Foreign key to Party: PartyId
    /// Organization is subtype of  Party
    /// </summary>
    public virtual Party Party { get; set; }

}

控制器编辑操作：

    [HttpPost]
    public ActionResult Edit(Organization obj)
    {
        //remove the lock since it is not required for inserts
        if (ModelState.IsValid)
        {
            OrganizationRepo.Update(obj);
            UnitOfWork.Save();
            LockSvc.Unlock(obj);
            return RedirectToAction("List");
        }
        else
        {
            return View();
        }
    }

查看： @using PartyBiz.Models.Objects @using d2Utils.Reflection

    @model IEnumerable<Organization>
    @{
    ViewBag.Title = "Details";
    }

<table>
<tr>
    <th>
        @Html.Raw("Caption")
    </th>
    <th></th>
</tr>
<tr>
<td colspan="4">
        @foreach (var item in Model)
    {   
         <table>
            <tr>

      @using (Html.BeginForm("Edit", "Organization", FormMethod.Post))
           {
                 <td >
                    @Html.TextBox("Caption", item.GetValForProp<string>("Caption"), new          { @class = "txt" }) 
                </td>
                <td >
                    @Html.TextBox("NameInUse", item.GetValForProp<string>("NameInUse"), new { @class = "txt" })
                </td>
                <td >
                    @Html.TextBox("Description", item.GetValForProp<string>("Description"), new { @class = "txt" })
                </td>
                <td>
                    <input type="hidden" name="PartyId" value="@item.PartyId"/>
                    <button type="submit">Edit</button>
                </td>
           }
            </tr>
        </table>
    }
</td>
</tr>
</table>

上下文方法： public virtual void Update（T obj） { IAuditable audit = obj as IAuditable; IOverTime超时= obj为IOverTime;

        // Existing entity
        D2Repository.Updated(ref audit, UserName);
        D2Repository.FromDate(ref overtime);



        Set.Attach(obj);
        Ctxt.Entry(obj).State = EntityState.Modified;
    }

Answer 1

我添加了

obj.Party.PartyId = obj.PartyId;

在我的编辑操作中，现在正在运行。我还想知道这是否是正确的做法？

使用DbContext更新参照完整性约束时违反

1 个答案: