URL传参数实现内容筛选出问题，急急急！

Question

本帖最后由 zl2928511 于 2012-05-30 21:21:33 编辑

Answer 1

好不容易弄完了，楼主看看吧。<div>
        价格&nbsp; <a href="Default.aspx?<%=getUrl(condition,"price=1-100") %>">低于100</a>&nbsp;&nbsp;
        <a href="Default.aspx?<%=getUrl(condition,"price=100-200") %>">100-200</a>
        <br />
        规模&nbsp; <a href="Default.aspx?<%=getUrl(condition,"scope=large") %>">规模较大</a>&nbsp;&nbsp;
        <a href="Default.aspx?<%=getUrl(condition,"scope=zz") %>">规模中等</a>
        <br />
        新旧&nbsp; <a href="Default.aspx?<%=getUrl(condition,"xinjiu=quanxin") %>">全新</a>&nbsp;&nbsp;
        <a href="Default.aspx?<%=getUrl(condition,"xinjiu=banxin") %>">半新</a>
    </div>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 _Default : System.Web.UI.Page
    {
        public string condition = "";
        protected void Page_Load(object sender, EventArgs e)
        {
            int i = 0;
            foreach (string key in Request.QueryString.Keys)
            {
                if (i != 0)
                {
                    condition += "&";
                }
                condition = condition + (key + "=" + Request.QueryString[key]);
                i++;
            }
        }        // 去掉多余的参数
        public String getUrl(string url, string addUrl)
        {
            // 第一次加载
            if (url.Equals(""))
            {
                return addUrl;
            }
            String rValue = "";
            List<QueryStringModel> listQueryStringModel = new List<QueryStringModel>();
            // 分解目前参数
            string[] values1 = url.Split('&');
            foreach (string value1 in values1)
            {
                string[] nowQueryString = value1.Split('=');
                // 把目前的参数都添加到List中
                QueryStringModel model = new QueryStringModel();
                model.KeyName = nowQueryString[0];
                model.KeyValue = nowQueryString[1];
                listQueryStringModel.Add(model);
            }            bool isHave = false;
            // 分解要新加的参数
            string[] addQueryString = addUrl.Split('=');
            // 循环List进行判断
            for (int i = 0; i < listQueryStringModel.Count; i++)
            {   
                // 如果Key相同，则替换
                if (listQueryStringModel[i].KeyName.Equals(addQueryString[0]))
                {
                    listQueryStringModel[i].KeyValue = addQueryString[1];
                    isHave = true;
                }                
            }
            // 如果List中不存在该参数，则添加
            if (isHave == false)
            {
                QueryStringModel model = new QueryStringModel();
                model.KeyName = addQueryString[0];
                model.KeyValue = addQueryString[1];
                listQueryStringModel.Add(model);
            }            // 循环List生成url地址
            for (int i = 0; i < listQueryStringModel.Count; i++)
            {
                if (i != 0)
                {
                    rValue += "&";
                }
                rValue += listQueryStringModel[i].KeyName + "=" + listQueryStringModel[i].KeyValue;
            }
            return rValue;
        }
    }    public class QueryStringModel
    {
        String _keyValue;        public String KeyValue
        {
            get { return _keyValue; }
            set { _keyValue = value; }
        }
        String _keyName;        public String KeyName
        {
            get { return _keyName; }
            set { _keyName = value; }
        }
    }
}