在ASP.NET MVC中,可以使用过滤和排序来对数据进行筛选和排序。以下是一种解决方法,包含了代码示例:
public class HomeController : Controller
{
public ActionResult Index(string sortOrder, string searchString)
{
// 获取要排序的列名和搜索关键字
ViewBag.NameSortParm = String.IsNullOrEmpty(sortOrder) ? "name_desc" : "";
ViewBag.DateSortParm = sortOrder == "Date" ? "date_desc" : "Date";
ViewBag.CurrentFilter = searchString;
// 获取数据源
var data = GetData();
// 根据搜索关键字进行过滤
if (!String.IsNullOrEmpty(searchString))
{
data = data.Where(d => d.Name.Contains(searchString));
}
// 根据排序列进行排序
switch (sortOrder)
{
case "name_desc":
data = data.OrderByDescending(d => d.Name);
break;
case "Date":
data = data.OrderBy(d => d.Date);
break;
case "date_desc":
data = data.OrderByDescending(d => d.Date);
break;
default:
data = data.OrderBy(d => d.Name);
break;
}
return View(data.ToList());
}
private IQueryable GetData()
{
// 此处为示例,可以根据实际情况获取数据源
var data = new List
{
new DataModel { Id = 1, Name = "John", Date = DateTime.Now.AddDays(-5) },
new DataModel { Id = 2, Name = "Alice", Date = DateTime.Now.AddDays(-3) },
new DataModel { Id = 3, Name = "Bob", Date = DateTime.Now.AddDays(-1) }
};
return data.AsQueryable();
}
}
@model IEnumerable
@{
ViewBag.Title = "Home Page";
}
Filter and Sort Example
@using (Html.BeginForm("Index", "Home", FormMethod.Get))
{
Search: @Html.TextBox("searchString", ViewBag.CurrentFilter as string)
}
Name
@if (ViewBag.NameSortParm == "name_desc")
{
}
else
{
}
Date
@if (ViewBag.DateSortParm == "date_desc")
{
}
else
{
}
@foreach (var item in Model)
{
@item.Name
@item.Date.ToShortDateString()
}
在上述代码中,Index方法接收两个参数:sortOrder和searchString。sortOrder用于指定排序的列和顺序,searchString用于指定搜索关键字。
在视图中,通过点击列名的链接来改变排序列和顺序,并通过表单提交来改变搜索关键字。最后,使用foreach循环将过滤和排序后的结果显示在表格中。
注意:以上示例只是一种简单的实现方式,实际情况可能更复杂。你可以根据自己的需求进行修改和扩展。