ASP.NET通过更改Url进行页面传值的实现代码
这篇文章主要介绍了ASP.NET通过更改Url进行页面传值的实现代码,本文通过实例代码给大家介绍的非常详细,对大家的学习或工作具有一定的参考借鉴价值,需要的朋友可以参考下
这里,通过假数据,手动创建的一个类,然后创建的一个集合,放入下拉框,选好值以后,点确定
会在另一个页面产生对应的id
创建一个类:
1 2 3 4 5 6 7 8 9 10 11 12 13 | using System; using System.Collections.Generic; using System.Linq; using System.Web; namespace WebApplication1 { public class Dept { public int Id { get; set; } public string DeptName { get; set; } } } |
一个选择的web窗体
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | <%@ Page Language= "C#" AutoEventWireup= "true" CodeBehind= "Dept.aspx.cs" Inherits= "WebApplication1.Dept1" %> <!DOCTYPE html> <head runat= "server" > <meta http-equiv= "Content-Type" content= "text/html; charset=utf-8" /> <title></title> </head> <body> <form id= "form1" runat= "server" > <div> <asp:DropDownList ID= "DropDownList1" runat= "server" AutoPostBack= "true" > </asp:DropDownList> </div> <p>><a href= "dept_<%=DropDownList1.SelectedValue %>.html" rel= "external nofollow" >查询</a></p> </form> </body> </html> |
选择的web窗体的后台代码
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 | using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; namespace WebApplication1 { public partial class Dept1 : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { LoadDeptData(); } } private void LoadDeptData() { //手动创建数据 List<Dept> depts = new List<Dept> { new Dept{Id= 1 ,DeptName= "小明" }, new Dept{Id= 2 ,DeptName= "小王" }, new Dept{Id= 3 ,DeptName= "小李" } }; this .DropDownList1.DataSource = depts; //默认显示的值 this .DropDownList1.DataTextField = "DeptName" ; this .DropDownList1.DataValueField = "Id" ; //保存 this .DropDownList1.DataBind(); } } } |
建一个继承Modules类
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 | using System; using System.Collections.Generic; using System.Linq; using System.Text.RegularExpressions; using System.Web; namespace WebApplication1.Modules { public class DeptModule : IHttpModule { public void Dispose() { } public void Init(HttpApplication context) { context.BeginRequest += Context_BeginRequest; } private void Context_BeginRequest(object sender, EventArgs e) { //处理请求 //获取请求url HttpApplication application = sender as HttpApplication; //相对路径 string url = application.Request.RawUrl; //一个正则,用来匹配是不是相对应的页面 Regex regex = new Regex(@ "dept_(\d+).html" ); //正则的匹配后的,微软给铺好的路,正则匹配后的一个数组; GroupCollection groupCollection = regex.Match(url).Groups; //这里取得是数组的第一个值,看看是不是成功匹配了, if (groupCollection[ 0 ].Success) { //取到第二个值 var id = groupCollection[ 1 ].Value.Trim( '_' ); //存储id,等用到的时候直接去第二个页面去取值 HttpContext.Current.RewritePath( "~/DeptDetail.aspx" , "" , "deptid=" +id); } } } } |
建完了类,要进入配置文件进行配置
因为我这里是放在一个文件夹下面了,所以配置文件指定type的时候,要加一个文件夹的路径
1 2 3 4 5 | <system.webServer> <modules> <add name= "Module" type= "WebApplication1.Modules.DeptModule" /> </modules> </system.webServer> |
显示的web窗体
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | <%@ Page Language= "C#" AutoEventWireup= "true" CodeBehind= "DeptDetail.aspx.cs" Inherits= "WebApplication1.DeptDetail" %> <!DOCTYPE html> <head runat= "server" > <meta http-equiv= "Content-Type" content= "text/html; charset=utf-8" /> <title></title> </head> <body> <form id= "form1" runat= "server" > <div> <asp:TextBox ID= "TextBox1" runat= "server" ></asp:TextBox> </div> </form> </body> </html> |
显示的web窗体的后台代码
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; namespace WebApplication1 { public partial class DeptDetail : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { //直接通过request获取Module存入的id this .TextBox1.Text = $ "{Request.QueryString[" deptid "]}" ; } } } } |
效果图
选择一个后点击查询
地址栏和内容都进行了更改
到此这篇关于ASP.NET通过更改Url进行页面传值的文章就介绍到这了