Question

如何创建一个空列表并使用多个控件将所有项目放入列表中这是我想要列在列表中的项目;

process = Subprocess([command], 
    stdout=Subprocess.STREAM, stderr=Subprocess.STREAM,
    shell=True)
out, err = yield [process.stdout.read_until_close(),
    process.stderr.read_until_close()]

我已经尝试过这样的东西来获取项目到下拉列表;

 var memberAdminOrMajor = Db.Members
     .Where(m => m.MemberType == MemberTypeForReeve.BelediyeBaskani)
     .OrderBy(m => m.Id)
     .Select(m => m.Mail)
     .ToList();

 var memberBM = Db.Members
     .Where(m => m.MemberType == MemberTypeForReeve.SahaElemanı)
     .OrderBy(m => m.Id)
     .Select(m => m.Mail)
     .ToList();

我如何获得var list = new List<DropDownListItem>(); var MembersForDrop = Db.Members.OrderBy(o => o.Sira) .Where(p=>p.MemberType == (MemberTypeForReeve)2); foreach (var temp in MembersForDrop) { list.Add(new DropDownListItem() { Text = temp.Name + "." + temp.SurName, Value = temp.Id }); }和memberAdminOrMajor

Answer 1

假设您在单个视图中需要两个列表。因此，创建一个包含列表和其他数据的视图模型：

public class MyViewModel
{
    public IEnumerable<SelectListItem> MemberAdminOrMajors { get; set; }
    public IEnumerable<SelectListItem> MemberBMs { get; set; }

    public int SelectedAdmin {get; set;}
    public int SelectedBM {get; set; }

    // other data
}

在您的操作方法中填写视图模型并传递给视图：

public ActionResult MyAction()
{
     var model=new MyViewModel
     {
         MemberAdminOrMajors = Db.Members
             .Where(m => m.MemberType == MemberTypeForReeve.BelediyeBaskani)
             .OrderBy(m => m.Id)
             .Select(m => new SelectListItem{ Text=m.Mail, Value=m.Id });

         MemberBMs= Db.Members
             .Where(m => m.MemberType == MemberTypeForReeve.SahaElemanı)
             .OrderBy(m => m.Id)
             .Select(m => new SelectListItem{ Text=m.Mail, Value=m.Id });

         // collectiong other data
     }
     return View(model);
}

查看：

@model MyNamespace.MyViewModel
@using (Html.BeginForm())
{
    @Html.DropDownListFor(model => model.SelectedAdmin, Model.MemberAdminOrMajors)
    @Html.DropDownListFor(model => model.SelectedBM, Model.MemberBMs)

    <input type="submit" value="submit" class="btn btn-default" />
}

现在，如果您有这样的回复操作，您可以获得用户选择的值：

[HttpPost]
public ActionResoult MyAction(MyViewModel model)
{
    var adminId = model.SelectedAdmin;
    var bmId = model.SelectedBM;
    // rest of code
}

但如果你想在1个列表中列出marge 2列表，你可以写：

var newList=Db.Members
    .Where(m => m.MemberType == MemberTypeForReeve.BelediyeBaskani
        || m.MemberType == MemberTypeForReeve.SahaElemanı)
    .OrderBy(m => m.Id)
    .Select(m => new SelectListItem{ Text=m.Mail, Value=m.Id })
    .ToList();

您还可以concat列出：

var newList=memberAdminOrMajor.Concat(memberBM)
    .Select(m => new SelectListItem{ Text=m.Mail, Value=m.Id });

MVC创建列表并填写自动

1 个答案: