c# - 将传递的字符串参数引用到分部 View

Question

我想将字符串变量传递给分部 View ，但我不确定如何将字符串参数显示到分部 View 。我尝试了在类似问题上找到的一些答案，但得到了以下输出:

“my_app.Models.DogTreatments”。谁能告诉我这是为什么？

这是我的代码:

Controller :

[HttpPost]
    public ActionResult CasIndex(int Sid)
    {

        string treat = dbContext.DogTreatments.Where(x => x.Sid == Sid).SingleOrDefault().ToString();




        //  ViewBag.TList = dbContext.DogTreatments.Where(x => x.Sid == Sid);

        return PartialView("DisplayTreatments", treat);
    }

查看页面:

@Html.Partial("~/Views/Shared/DisplayTreatments.cshtml")

部分 View :

@model string

@{
    Layout = null;
}

@Model

Answer 1

由于您的 LINQ 语句，您所看到的内容是正确的。

string treat = dbContext.DogTreatments.Where(x => x.Sid == Sid).SingleOrDefault().ToString();

此 dbContext.DogTreatments.Where(x => x.Sid == Sid) 过滤所有 DogTreatments Where x.Sid == Sid

此.SingleOrDefault()选择DogTreatments类型或default(null)的单个对象。

toString() 会将对象类型转换为其字符串格式，因此 my_app.Models.DogTreatments

也许这会满足您的要求:

从 LINQ 查询返回对象:

var treat = dbContext.DogTreatments.Where(x => x.Sid == Sid).SingleOrDefault();
return PartialView("DisplayTreatments", treat);

部分 View 将如下所示:

@using my_app.Models.DogTreatments //(this might need to be fixed)
@model DogTreatments

@{
    Layout = null;
}

// in here you can access the DogTreatments object
// These are just examples as I don't know from question what DogTreatments properties are
   @if(Model != null) 
   {
    @Model.Name 
    @Model.Treatment
   }