像这样：
@Html.DropDownListFor(model => model.Status, new List<SelectListItem> { new SelectListItem{Text="Active", Value="True"}, new SelectListItem{Text="Deactive", Value="False"}},"Select One")如果要默认选择“活动”，则使用以下
Selected属性
SelectListItem：
@Html.DropDownListFor(model => model.Status, new List<SelectListItem> { new SelectListItem{Text="Active", Value="True",Selected=true}, new SelectListItem{Text="Deactive", Value="False"}},"Select One")如果使用
SelectList，则必须使用此重载并指定
SelectListItem
Value要设置为selected的属性：
@Html.DropDownListFor(model => model.title,new SelectList(new List<SelectListItem> { new SelectListItem { Text = "Active" , Value = "True"}, new SelectListItem { Text = "InActive", Value = "False" } }, "Value", // property to be set as Value of dropdown item "Text", // property to be used as text of dropdown item "True"), // value that should be set selected of dropdown new { @class = "form-control" })
