在SelectList MVC3中填充结果集

本文关键字:结果 填充 SelectList MVC3 | 更新日期: 2023-09-27 18:25:10

我在CourseRegisterModel:中有以下SelectList声明

public class CourseRegisterModel
{
    public StudentModel Student { get; set; }
    public CourseModel Course { get; set; }
    public IEnumerable<SelectListItem> CoursesList { get; set; }
    public DateTime RegisterDate { get; set; }
}

CourseController中,我通过调用wcf web服务检索所有可用的课程:

public ViewResult Index()
    {
        ServiceCourseClient client = new ServiceCourseClient();
        Course[] courses;
        courses = client.GetAllCourses();
        List<CourseModel> modelList = new List<CourseModel>();
        foreach (var serviceCourse in courses)
        {
            CourseModel model = new CourseModel();
            model.CId = serviceCourse.CId;
            model.Code = serviceCourse.Code;
            model.Name = serviceCourse.Name;
            model.Fee = serviceCourse.Fee;
            model.Seats = serviceCourse.Seats;
            modelList.Add(model);
        }
        return View(modelList);//RegisterCourses.chtml
    }

我需要在视图RegisterCourses.chtml的下拉列表中填充这些课程。在上面的代码中,如何将所有记录放入selectlist?此外,我将如何在视图中使用该选择列表?

在SelectList MVC3中填充结果集

对于初学者,您的RegisterCourses.cshtml需要使用:

@model <namespace>.CourseRegisterModel

然后,您的控制器代码将是:

public ViewResult Index()
    {
        ServiceCourseClient client = new ServiceCourseClient();
        Course[] courses;
        courses = client.GetAllCourses();
        CourseRegisterModel model = new CourseRegisterModel();
        //model = other model population here
        model.CourseList = courses.Select(sl => new SelectListItem() 
                                          {   Text = sl.Name, 
                                             Value = sl.CId })
                                  .ToList();
        return View(model);
    }

最后,回到您的视图(RegisterCourses.cs.html)-它应该包含:

@Html.DropDownListFor(m => m.Course.CId, Model.CourseList)

使用Html.DropDownList方法:http://msdn.microsoft.com/en-us/library/dd492738(v=vs.108).aspx

将下拉列表中所需的名称作为第一个参数,第二个参数在CourseList:中传递

@Html.DropDownList("课程列表",Model.CursesList)