刪除列表發送實體唯一標識不包含所選項目

Question

我在我的視圖中填充了一個下拉列表，其中包含從我的數據庫填充的view.bag發送的項目。在視圖中一切都很好，但是當它保存到數據庫時，它傳遞的是該實體的唯一ID而不是選定的值。是否有人可以幫助... 謝謝...

* note my static填充下拉工作...它從數據庫的下拉列表導致proplem。

繼承人我的代碼：

Controller: 

public ActionResult Create() 
    { 
     ViewBag.TeacherID = new SelectList(db.Teachers, "TeacherID", "LastName"); 
     ViewBag.SemesterID = new SelectList(db.Semesters, "SemesterID",    
     SemesterName"); 
     ViewBag.CourseID = new SelectList(db.Courses, "Section", "CourseSection"); 
     ViewBag.RoomID = new SelectList(db.Rooms, "RoomID", "FacilityIdentifier"); 


     var meetlist = new SelectList(new[] 
       { 
       new { ID="M", Name="M"}, 
       new { ID="T", Name="T"}, 
       new { ID="W", Name="W"}, 
       new { ID="TH", Name="TH"}, 
       new { ID="T", Name="T"}, 
       new { ID="F", Name="F"}, 
       new { ID="MW", Name="MW"}, 
       new { ID="TTH", Name="TTH"}, 
       }, 
"ID", "Name", 1); 

     ViewData["meetlist"] = meetlist 

     return View(); 
    } 

查看：

@using (Html.BeginForm()) { 
@Html.AntiForgeryToken() 
@Html.ValidationSummary(true) 

<fieldset> 
    <legend>Assignment</legend> 

    <div class="editor-label"> 
     COURSE 
    </div> 
    <div class="editor-field"> 
     @Html.DropDownList("CourseSection", String.Empty) 
     @Html.ValidationMessageFor(model => model.Course.Section) 
    </div> 

    <div class="editor-label"> 
     @Html.LabelFor(model => model.TeacherID) 
    </div> 
    <div class="editor-field"> 
     @Html.DropDownList("TeacherID", String.Empty) 
     @Html.ValidationMessageFor(model => model.TeacherID) 
    </div> 


    <div class="editor-label"> 
     @Html.LabelFor(model => model.RoomID) 
    </div> 
    <div class="editor-field"> 
     @Html.DropDownList("RoomID", String.Empty) 
     @Html.ValidationMessageFor(model => model.RoomID) 
    </div> 


    <div class="editor-label"> 
     @Html.LabelFor(model => model.SemesterID) 
    </div> 
    <div class="editor-field"> 
     @Html.DropDownList("RoomID", String.Empty) 
     @Html.ValidationMessageFor(model => model.RoomID) 
    </div> 


    <div class="editor-label"> 
     @Html.LabelFor(model => model.EnrollCap) 
    </div> 
    <div class="editor-field"> 
     @Html.EditorFor(model => model.EnrollCap) 
     @Html.ValidationMessageFor(model => model.EnrollCap) 
    </div> 

    <div class="editor-label"> 
     @Html.LabelFor(model => model.EnrollTotal) 
    </div> 
    <div class="editor-field"> 
     @Html.EditorFor(model => model.EnrollTotal) 
     @Html.ValidationMessageFor(model => model.EnrollTotal) 
    </div> 

    <div class="editor-label"> 
     @Html.LabelFor(model => model.StartTime) 
    </div> 
    <div class="editor-field"> 
     @Html.EditorFor(model => model.StartTime) 
     @Html.ValidationMessageFor(model => model.StartTime) 
    </div> 

    <div class="editor-label"> 
     @Html.LabelFor(model => model.EndTime) 
    </div> 
    <div class="editor-field"> 
     @Html.EditorFor(model => model.EndTime) 
     @Html.ValidationMessageFor(model => model.EndTime) 
    </div> 

    <div class="editor-label"> 
     @Html.LabelFor(model => model.Meeting) 
    </div> 
     <div> 
     @Html.DropDownListFor(u => u.Meeting, ViewData["meetlist"] as SelectList, 
       new { style = "width: 200px"}) 

       @Html.ValidationMessageFor(u=>u.Meeting) 
     </div> 

    <p> 
     <input type="submit" value="Create" /> 
    </p> 

和型號：

public class Assignment 
{ 
    public int AssignmentID { get; set; } 
    public int CourseID { get; set; } 
    public int TeacherID { get; set; } 
    public int RoomID { get; set; } 
    public int SemesterID { get; set; } 


    public int EnrollCap { get; set; } 
    public int EnrollTotal { get; set; } 

    public DateTime StartTime { get; set; } 
    public DateTime EndTime { get; set; } 
    public string Meeting { get; set; } 

    public virtual Course Course { get; set; } 
    public virtual ICollection<Room> Room { get; set; } 
    public virtual ICollection<Teacher> Teacher { get; set; } 
    public virtual ICollection<Semester> Semester { get; set; } 

} 

預先感謝您。

Answer 1

供應適當SelectList（通過你的情況ViewBags）作爲數據源到的下拉列表中，如：

@Html.DropDownList("CourseSection", (SelectList)ViewBag.CourseID) 
@Html.DropDownList("TeacherID", (SelectList)ViewBag.TeacherID) 

等等...