Asp.Net MVC3添加搜索功能 [英] Asp.Net MVC3 adding search functionality

问题描述

我正在尝试在客户列表中实现搜索功能，本教程在Asp.Net网站上详细介绍了该功能，

I am trying to implement search functionality on a list of customers, the functionality is detailed in this tutorial on the Asp.Net site,

http://www.asp.net/entity-framework/tutorials/sorting-filtering-and-paging-with-the-entity-framework-in-an-asp-net-mvc-application

在我的控制器中，我有以下

In my controller i have the following

public ViewResult Index(string sortOrder, string searchString)
    {
        ViewBag.CustomerNameSortParm = String.IsNullOrEmpty(sortOrder) ? "CustomerName desc" : "";
        ViewBag.PrimaryContactNameSortParm = sortOrder == "PrimaryContactName" ? "PrimaryContactName desc" : "PrimaryContactName";
        var cust = repository.Customers;

        if (!String.IsNullOrEmpty(searchString))
        {
            cust = cust.Where(c => c.CustomerName.ToUpper().Contains(searchString.ToUpper())
                                   || c.PrimaryContactName.ToUpper().Contains(searchString.ToUpper()));
        }

        switch (sortOrder)
        {
            case "CustomerName desc":
                cust = repository.Customers.OrderByDescending(s => s.CustomerName);
                break;
            case "PrimaryContactName":
                cust = repository.Customers.OrderBy(s => s.PrimaryContactName);
                break;
            case "PrimaryContactName desc":
                cust = repository.Customers.OrderByDescending(s => s.PrimaryContactName);
                break;
            default:
                cust = repository.Customers.OrderBy(s => s.CustomerName);
                break;
        }

        return View(cust.ToList());
    }

if语句检查值，并应使用LINQ，WHERE语句过滤列表，

The if statement checks the value and should use the LINQ, WHERE statement to filter the list,

我在视图中设置了文本框，如

I have the textbox setup in the view like

@using (Html.BeginForm())
{
<p>
    Find by name: @Html.TextBox("SearchString") &nbsp;
    <input type="submit" value="Search" /></p>
}

但是，当我输入客户名称时，结果不会被过滤，我正在使用SQL Server 2008 R2有没有人遇到这个问题？有没有什么需要让Contains方法工作？

However when i enter a customer name the results are not filtered, i am using SQL Server 2008 R2, has anyone else encountered this issue? is there anything else required to get the Contains method working?

建议是赞赏？

利亚姆

Liam

推荐答案

在排序顺序开关中，使用repository.Customers重新设置cust变量。您应该使用cust变量来应用筛选集上的排序。

In the sort order switch you re-set the cust variable with the repository.Customers. You should use the cust variable instead to apply the sorting on the filtered set.

switch (sortOrder)
        {
            case "CustomerName desc":
                cust = cust.OrderByDescending(s => s.CustomerName);
                break;

这篇关于Asp.Net MVC3添加搜索功能的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！