asp.net-mvc 使用 MVC 使用 List<string> 填充 @Html.DropDownList
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Populate @Html.DropDownList with a List<string> using MVC
提问by wardh
I'm trying to populate a @Html.DropDownList with a List using MVC and Razor. Bellow is my code for the controller. So I need to pick the list out of my ViewBag and fill the dropdownlist.
我正在尝试使用 MVC 和 Razor 使用列表填充 @Html.DropDownList。波纹管是我的控制器代码。所以我需要从我的 ViewBag 中选择列表并填写下拉列表。
public ActionResult Register()
{
sparklingEntities context = new sparklingEntities();
var query = (from discs in context.Disciplines
select discs).ToList();
List<string> listOfDiscs = new List<string>();
foreach (var item in query)
{
listOfDiscs.Add(item.Discipline);
}
ViewBag.ListOfDisciplines = listOfDiscs;
return View();
}
Thanks for the help.
谢谢您的帮助。
回答by Ethan Cabiac
If this is in an Editor for your model property:
如果这是在您的模型属性的编辑器中：
@Html.DropDownList("", new SelectList(ViewBag.ListOfDisciplines, Model))
回答by Meghs Dhameliya
//Increase performance by Eliminating foreach loop!
public ActionResult Register()
{
sparklingEntities context = new sparklingEntities();
var query = (from discs in context.Disciplines
select discs.Discipline); // change this line as discs.Discipline
ViewBag.ListOfDisciplines = listOfDiscs;
return View();
}
回答by kunal gupta
value is not getting saves in the database..please see where i am getting mistake...
值没有保存在数据库中..请看看我哪里出错了...
public ActionResult Role(Role_Master_Table t)
{
FTSdatabaseEntities dc = new FTSdatabaseEntities();
{
//ViewBag.Status_Description = new SelectList(dc.Status_Master_Table, "StatusId", "Status_Description", "Remarks");
var query = (from Status_Description in dc.Status_Master_Table
select Status_Description).ToList();
List<string> listOfDiscs = new List<string>();
foreach (var item in query)
{
listOfDiscs.Add(t.Status);
dc.Role_Master_Table.Add(t);
dc.SaveChanges();
}
ViewBag.Status_Description = listOfDiscs;
return View();
}
