如何在单独的页面上显示搜索结果

时间:2014-05-09 16:44:10

标签: c# asp.net search

在我的search.aspx上,我使用ListView显示搜索结果:

标记:

<asp:TextBox runat="server" ID="txtSearch" placeholder="search" />

<asp:Button runat="server" ID="btnSubmit" Text="Search" OnClick="btnSubmit_Click" />

<asp:ListView ID="ListView1" runat="server">

    <ItemTemplate>
        <asp:HyperLink ID="HyperLink1" runat="server" ImageUrl='<%# String.Format("../Images/books/{0}.jpg", Eval("Id").ToString()) %>' NavigateUrl='<%#  "../books/bookdetails.aspx?BookId=" + Eval("Id").ToString() %>'></asp:HyperLink>

        <asp:Label ID="TitleLabel" runat="server" Text='<%# Eval("Title") %>' />
        <asp:Label ID="Label1" runat="server" Text='<%# Eval("Publisher") %>' />
        <asp:Label ID="Label2" runat="server" Text='<%# Eval("Author") %>' /></p>
    </ItemTemplate>

</asp:ListView>

代码背后:

protected void btnSubmit_Click(object sender, EventArgs e)
{
    using (ELibraryEntities entities = new ELibraryEntities())
    {
        var search = from books in entities.Reviews
                    where books.Title.Contains(txtSearch.Text.Trim())
                    select books;
        ListView1.DataSource = search;
        ListView1.DataBind();
    }
}

并且工作正常,搜索结果显示在search.aspx页面中。

现在,我想将搜索文本框<asp:TextBox runat="server" ID="txtSearch" placeholder="search" />移动到MasterPage,因此当用户搜索时,搜索结果将在新的search.aspx页面上打开。

2 个答案:

答案 0 :(得分:0)

使用post-redirect-get:

  1. POST:Have your master page handle the click event
  2. REDIRECT:Then redirect to the search page, including the search parameters in the search URL
  3. GET:将搜索页面btnSubmit_Click中的逻辑移至其页面加载事件,同时考虑通过URL传递的搜索字词,而不是直接从文本框中发布。

答案 1 :(得分:0)

微软在MSDN上有一篇关于passing values between ASP .NET的好文章,我建议你阅读。在当前设置中,您正在对页面执行操作,然后根据该操作运行代码,该代码从页面上的元素检索数据并执行其他操作。为了拆分搜索框和搜索结果,您需要确保在两个页面之间传递操作,并且内容(搜索查询)在两个页面之间进行通信。

总结一下,您可以采取一些方法:

  • 使用URL查询字符串参数*这是最常用于搜索的内容!
  • HTTP将数据发布到新页面
  • 传递参​​数服务器端(例如会话状态)

我建议读入查询字符串方法。作为总结:

//1) On the source page with the search box, you would redirect the user 
//     to the search results page and append the search query to the URL: 
Response.Redirect("search.aspx?search=" + HttpUtility.UrlEncode(query));

//2) On the search results page, parse the query string values
String searchQuery = Request.QueryString["search"];

//3) Perform your search action in code and display the results.
protected void btnSubmit_Click(object sender, EventArgs e){
    //your search code
    using (ELibraryEntities entities = new ELibraryEntities())
    {
        var search = from books in entities.Reviews
                where books.Title.Contains(searchQuery)
                select books;
        ListView1.DataSource = search;
        ListView1.DataBind();
    }
}

请注意使用Response.RedirectHttpUtility.UrlEncodeRequest.QueryString