我是ASP.NET MVC的新手,对此不太了解。我想从数据库中获取3个图像,从列表中选择项目并显示在网页上。我为列表框项目和表的主键设置了相同的Id。这里是我已经尝试过的代码,但它没有工作我应该做什么修改。 (图像的URL都存储在数据库中)从ASP.NET MVC中选择项目中的数据库获取图像
模型类:
public class UserDetailModel
{
public string LetterId { get; set; }
public string LetterPic { get; set; }
public string LetterRecord { get; set; }
public string LetterWord { get; set; }
public string LetterWord_Pic { get; set; }
public string LetterWordRecord { get; set; }
[Display(Name = "LetterDetail")]
public List<LetterList> letterDetail;
[Display(Name = "selectedLetter")]
public string selectedLetter { get; set; }
}
public class LetterList
{
public string listId { get; set; }
public string listName { get; set; }
}
控制器:
public ActionResult letter(string SelectedLetter)
{
demo.Models.UserDetailModel obj = new demo.Models.UserDetailModel();
obj.letterDetail = new List<LetterList>()
{
new LetterList() { listId = "1", listName = "A" },
new LetterList() { listId = "2", listName= "B" },
new LetterList() { listId = "3", listName= "C" },
new LetterList() { listId ="4", listName= "D"}
};
return View(obj);
using (var context = new VirtualSpeechTherapistEntities())
{
var hurf = from b in context.hurf_e_tahaji
where b.Letter_Id = SelectedLetter
select b;
return View("letter", context);
};
主键应该等于选定的listItem ID,什么在写where子句? //
查看:
@model demo.Models.UserDetailModel
@Html.ListBoxFor(obj => obj.selectedLetter, new SelectList (Model.letterDetail, "listId","listName")) ;
@Html.Id(Model.selectedLetter);
<img src="@Url.Content(Model.LetterPic)"/>