Question

在我的应用程序中使用了这些，但遇到了这个问题。

我有这两个模型：

    public class vwLkUpDepartmentCategory
{
    [Key]
    public int DepartmentCategoryID { get; set; }
  public string DepartmentCategory { get; set; }
    public Byte IsActive { get; set; }
}


public class vwDimDepartments
{
    [Key]
    public Int64 DepartmentID { get; set; }
    public string DepartmentName { get; set; }
    public int DepartmentCategoryID { get; set; }
    public string DepartmentCategory{ get; set; }
    public string Departments { get; set; }
    public Byte IsActive { get; set; }
}

在控制器中我为viewbag中的值设置下拉列表

ViewBag.DepartmentDropDown = new SelectList(db.vwLkUpDepartmentCategory.Where(x => x.IsActive == 1).ToList(), "DepartmentCategoryID", "DepartmentCategory");

在视图中我有

 <div>@Html.LabelFor(model => model.DepartmentCategoryID)</div>
                    <div>@Html.DropDownListFor(model => model.DepartmentCategoryID, new SelectList(ViewBag.DepartmentDropDown, "DepartmentCategoryID", "DepartmentCategory"), "", new { @class = "dropdown", id = "txtDepartmentCategoryID" })</div>
                    <div>@Html.ValidationMessageFor(model => model.DepartmentCategoryID, "", new { @class = "text-danger" })</div>

但是当我运行它时，我收到一个错误说

DataBinding: 'System.Web.Mvc.SelectListItem' does not contain a property with the name 'DepartmentCategoryID'.

这是因为我将departmentId作为视图中的键值吗？

如果我没有在视图中明确定义departmentCategoryID字段，它将采用第一个离开并始终使用它。

最好的方法是什么？

Answer 1

在Controller ::

上试试这个

 ViewBag.DepartmentCategoryID= new SelectList(db.vwLkUpDepartmentCategory.Where(x => x.IsActive == 1).ToList(), "DepartmentCategoryID", "DepartmentCategory");

在View ::

上

 <div>@Html.LabelFor(model => model.DepartmentCategoryID)</div>
                        <div>@Html.DropDownListFor(model => model.DepartmentCategoryID, SelectList(ViewBag.DepartmentCategoryID, new { @class = "dropdown", id = "txtDepartmentCategoryID" })</div>
                        <div>@Html.ValidationMessageFor(model => model.DepartmentCategoryID, "", new { @class = "text-danger" })</div>

绑定下拉列表值

1 个答案: