Question

@Html.DropDownListFor 怎么回填 默认值

Answer 1

1

@Html.DropDownListFor(o => o.ParentId, ViewBag.root as IEnumerable<SelectListItem>)

Controller层：

var parent = _dictionaryService.Where(o => o.IsDeleted == false && o.DisLevel == 1)
.ToList()
.Select(o => new SelectListItem()
{
Text = o.Name.ToString(),
Value = o.Id.ToString()
});
<span style="color: #0000ff;"><strong>ViewBag.root = parent;</strong></span>

<span style="color: #0000ff;">DictionaryViewModel viewModel = new DictionaryViewModel();
viewModel.ParentId = id;</span>

string disOrder = "";
disOrder = LoadDetailOrderNumber(id);
<span style="color: #0000ff;">viewModel.DisOrder = disOrder.AsInt();

return View(viewModel