Question

我无法在MVC中绑定选定的值。有人可以告诉我以下代码有什么问题：

@Html.DropDownListFor(x => Model.Members[i].OccupationCd,
   (IEnumerable<SelectListItem>)ViewData["ddl_occupation"], 
   new { @style = "width:100px", @class = "Occupation required" })




 public List<SelectListItem> GetOccupation(string selectedValue)
    {
        List<SelectListItem> selLstOccupation = new List<SelectListItem>();
        selLstOccupation.Add(new SelectListItem { Value = "", Text = "---" + ("Select Occupation") + "---" });
        selLstOccupation.AddRange(GetData.AllOccupation());
        selLstOccupation = GetData.GetSelectedList(selLstOccupation, selectedValue);
        return selLstOccupation;
    }

  public class Member()
  {
  //code
 //code   
   public int educationCd { get; set; }
  }

我找到了解决方案：

  @Html.DropDownListFor(x => Model.Members[i].OccupationCd,new SelectList((IEnumerable<SelectListItem>)ViewData["ddl_occupation"],"Value","Text",Model.Members[i].OccupationCd))

Answer 1

您必须做两件事才能解决问题。第一个是使用以下实现更改GetOccupation方法

public List<Occupation> GetOccupation()
{
    return GetData.AllOccupation();
}

然后您必须将下拉列表初始化更改为以下

@Html.DropDownListFor(x => x.Members[i].OccupationCd,
   new SelectList(
       (IEnumerable<Occupation>)ViewData["ddl_occupation"], 
       "OccupationCd",
       "@@HERE YOU ADD THE PROPERTY YOU WANT TO VISUALIZE@@",
       Model.Members[i].OccupationCd),
   "---Select Occupation--",
   new { @style = "width:100px", @class = "Occupation required" })

这可以解决您的问题。

使用viewdata选择值的下拉列表

1 个答案: