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我添加了一个下拉列表，以便在为学校创建新的考试时与学校的联系人匹配该学校的一名学生。问题是当我试图发布我得到的错误。传入字典的模型项目类型为'x'，但此字典需要'x'类型的模型项目
传入字典的模型项目类型为'Data.members_exams'，但此字典需要类型为'NAHPapp.Models.DropDownList'的模型项目。
我知道我应该从错误读取的不同模型中传递，但是我不能指出在哪里更改。我们的目标是能够保存这篇文章。
控制器：
public ActionResult DropDownListCreate()
{
List<SelectListItem> schoolsId = new List<SelectListItem>();
DropDownList DropDownList = new DropDownList();
List<school> sch = db.schools.OrderBy(x => x.schools_name).ToList();
sch.ForEach(x =>
{
schoolsId.Add(new SelectListItem { Text = x.schools_name, Value = x.schools_id.ToString() });
});
DropDownList.schools_id = schoolsId;
ViewBag.schools_contacts = new SelectList(db.schools, "schools_contacts_id", "schools_contact_firstname");
ViewBag.exams_id = new SelectList(db.exams, "exams_id", "exams_description");
ViewBag.members_exams_status_id = new SelectList(db.members_exams_status, "members_exams_status_id", "members_exams_status_description");
ViewBag.members_exams_types_id = new SelectList(db.members_exams_types, "members_exams_types_id", "members_exams_types_description");
ViewBag.schools_id = new SelectList(db.schools.OrderBy(x => x.schools_name), "schools_id", "schools_name");
return View(DropDownList);
}
public ActionResult Contact(string schools_id)
{
int schoolID;
List<SelectListItem> schoolsName = new List<SelectListItem>();
if (!string.IsNullOrEmpty(schools_id))
{
schoolID = Convert.ToInt32(schools_id);
List<schools_contacts> Name = db.schools_contacts.Where(x => x.schools_id == schoolID).ToList();
Name.ForEach(x =>
{
schoolsName.Add(new SelectListItem { Text = x.schools_contacts_firstname + " " + x.schools_contacts_lastname + " | " + x.schools_contacts_email, Value = x.schools_contacts_id.ToString() });
});
}
return Json(schoolsName, JsonRequestBehavior.AllowGet);
}
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult DropDownListCreate([Bind(Include = "members_exams_id,members_id,schools_id,exams_id,members_exams_status_id,members_exams_types_id,members_exams_username,members_exams_password,members_exams_firstname,members_exams_middlename,members_exams_lastname,members_exams_ssn,members_exams_email,members_exams_expirationdate,members_exams_examdate,members_exams_session,members_exams_score,members_exams_startdate,members_exams_address,members_exams_city,members_exams_state,members_exams_zip,members_exams_phone,members_exams_testinglocation,members_exams_proctorname,members_exams_application,members_exams_payment,members_exams_diploma,members_exams_processing")] members_exams members_exams)
{
if (ModelState.IsValid)
{
db.members_exams.Add(members_exams);
db.SaveChanges();
return RedirectToAction("Details", "members", new { id = members_exams.members_id }); //custom route to go to details of student.
}
ViewBag.exams_id = new SelectList(db.exams, "exams_id", "exams_description", members_exams.exams_id);
ViewBag.members_exams_status_id = new SelectList(db.members_exams_status, "members_exams_status_id", "members_exams_status_description", members_exams.members_exams_status_id);
ViewBag.members_exams_types_id = new SelectList(db.members_exams_types, "members_exams_types_id", "members_exams_types_description", members_exams.members_exams_types_id);
ViewBag.schools_id = new SelectList(db.schools, "schools_id", "schools_name", members_exams.schools_id);
return View(members_exams);
}
查看：
@using Data;
@model NAHPapp.Models.DropDownList
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<div class="form-group">
@Html.LabelFor(model => model.schools_id, "School Name", htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
@Html.DropDownListFor(x => x.schools_id, Model.schools_id, "----Select----", new { @id = "ddlSchool" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.schools_id, "Proctor Name", htmlAttributes: new { @class = "control-label col-md-2" })
<div id="Name" class="col-md-10">
@Html.DropDownListFor(x => x.schools_contacts_firstname, new List<SelectListItem>(), "--Select--", new { @id = "ddlName" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.exams_id, "Exams Id", htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-5">
@Html.DropDownList("exams_id", null, htmlAttributes: new { @class = "form-control" })
@Html.ValidationMessageFor(model => model.exams_id, "", new { @class = "text-danger" })
</div>
</div>
<div class="form-group">
<div class="col-md-offset-2 col-md-10">
<input type="submit" value="Create" class="btn btn-success" /> |
@Html.ActionLink("Member Index", "Index", "members", null, new { @class = "btn btn-default" })
</div>
</div>
</div>
}
<script type="text/javascript">
$(document).ready(function() {
$('#ddlSchool').change(function() {
$.ajax({
type: "post",
url: "/DropDownList/GetContact",
data: { schools_id: $('#ddlSchool').val() },
datatype: "json",
traditional: true,
success: function (data) {
var Name = "<select id='ddlName'>";
Name = Name + '<option value="">--Select--</option>';
for (var i = 0; i < data.length; i++) {
Name = Name + '<option value=' + data[i].Value + '>' + data[i].Text + '</option>';
}
Name = Name + '</select>';
$('#Name').html(Name);
}
});
});
});
任何帮助或指导将是非常赞赏。