预选择下拉框的值

Question

正如标题所说的那样

<td><%= Html.DropDownList("Weight", Model.Weightddl.Select(x => new SelectListItem { Text = x.Name, Value = x.Id.ToString() }))%></td>

这是我的代码行。我有值Model.Weight，我希望在加载时预先选择...如何将其设置为选定值？

感谢

史蒂夫

Answer 1

设置Selected property，如下所示：

<td><%= Html.DropDownList("Weight", 
             Model.Weightddl.Select(x => new SelectListItem { 
                 Text = x.Name, 
                 Value = x.Id.ToString(),
                 Selected = (x.Id == Model.Weight)
             }))%></td>