Question

嘿伙计们，我需要你的帮助，我在MVC中有一个创建员工表格。我填写表单并从下拉列表中选择，当我单击提交时，每个其他字段返回除下拉列表之外的值。我似乎无法解决问题。这就是表格的样子。

enter image description here

这是CreateEmployee模型

    public class CreateEmployee
{
    public int Id { get; set; }
    public string FullName { get; set; }
    [Required]
    public string Notes { get; set; }

    public int Department { get; set; }
    public IEnumerable<AngTestDepartment> Departments { get; set; }

    public bool PerkCar { get; set; }
    public bool PerkStock { get; set; }
    public bool PerkSixWeeks { get; set; }
    public string PayrollType { get; set; }
}

动作控制器

public ActionResult Employee(){
using (var db = new DepartmentDbContext())
{
    var model = new CreateEmployee();
    model.Departments = db.AngTestDepartments.ToList();
    return View(model);
} }

和视图

@using (Html.BeginForm("CreateEmployee", "Employee", FormMethod.Post))

{ @ Html.AntiForgeryToken（）

<div class="form-horizontal">
    <h4>Employee</h4>
    <hr />
    @Html.ValidationSummary(true, "", new { @class = "text-danger" })
    @Html.HiddenFor(model => model.Id)

    <div class="form-group">
        @Html.LabelFor(model => model.FullName, htmlAttributes: new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            @Html.EditorFor(model => model.FullName, new { htmlAttributes = new { @class = "form-control" } })
            @Html.ValidationMessageFor(model => model.FullName, "", new { @class = "text-danger" })
        </div>
    </div>

    <div class="form-group">
        @Html.LabelFor(model => model.Notes, htmlAttributes: new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            @Html.EditorFor(model => model.Notes, new { htmlAttributes = new { @class = "form-control" } })
            @Html.ValidationMessageFor(model => model.Notes, "", new { @class = "text-danger" })
        </div>
    </div>

    // the drop down  doesnt return a value on submit
    <div class="form-group">
        @Html.LabelFor(model => model.Department, htmlAttributes: new { @class = "control-label col-md-2" })
        <div class="col-md-10">

            @Html.DropDownListFor(m => m.Departments,
                Model.Departments.Select(d => new SelectListItem()
                                                {
                                                    Value = d.id.ToString(),
                                                    Text = d.Department
                                                }
                                    ), new { htmlAttributes = new { @class = "form-control" } })
            @Html.ValidationMessageFor(model => model.Department, "", new { @class = "text-danger" })

        </div>
    </div> }

并且要求提交

的操作结果

        public ActionResult CreateEmployee(CreateEmployee newEmployee)
    {
        DbEmployeeTable.DbEmployeeTable_EmployeeTable(newEmployee);
        return RedirectToAction("Employees");
    }

非常感谢你的帮助。

Answer 1

而不是

@Html.DropDownListFor(m => m.Departments,

试试这个......

@Html.DropDownListFor(m => m.Department,

这应该将部门Id作为选定值的int返回。

Answer 2

将下拉列表代码更改为：

@Html.DropDownListFor(m => m.Department, new SelectList(Model.Departments.Select(d => new SelectListItem()
    {
        Value = d.id.ToString(),
        Text = d.Department
    }
)), new { htmlAttributes = new { @class = "form-control" } })

Dropdownlistfor的第一个参数应该是你想要获得的值，而第二个参数是一个选择列表将在以后保存与持久性相关的麻烦。

顺便说一句，我还会将Model.Departments.Select结果作为一个模型属性，这样你就不会混淆你的视图，但这只是一个风格问题。

动态DropDown列表不返回MVC中的任何值

2 个答案: