添加删除查询字符串中的参数代码,CSharp代码库,德仔网

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【CSharp】添加删除查询字符串中的参数

作者:kkcat / 发布于2013/6/17/ 1018

这两个函数都是相对当前的请求的URL来处理的。例如：http://baidu.com/?a=hello&b=world 添加函数输入：("c","kkcat"),输出就是http://baidu.com/?a=hello&b=world&c=kkcat 删除函数输入：("b"),输出就是http://baidu.com/?a=hello


	public static string QueryParameter(string key, string value)
	 {
	 return QueryParameter(new Dictionary<string, string>() { { key, value } },string.Empty);
	 }

	 public static string QueryParameter(string key, string value, string path)
	 {
	 return QueryParameter(new Dictionary<string, string>() { { key, value } }, path);
	 }

	 public static string QueryParameter(Dictionary <string,string> dics,string path)
	 {
	 string ret=string.Empty ;
	 Dictionary<string, string> OldQueryString = new Dictionary<string, string>();

	 foreach (string key in Page.Request.QueryString.AllKeys)
	 {
	 OldQueryString .Add (key,Page.Request .QueryString [key]);
	 }

	 foreach (KeyValuePair <string,string> item in dics)
	 {
	 if (!OldQueryString.ContainsKey(item.Key))
	 OldQueryString.Add(item.Key, item.Value);
	 else
	 OldQueryString[item.Key] = item.Value;
	 }

	 foreach (KeyValuePair<string, string> item in OldQueryString)
	 {
	 ret += string.Format("{0}={1}&", item.Key, item.Value);
	 }

	 if(ret.EndsWith ("&"))
	 ret=ret.Substring (0,ret.Length -1);

	 if (string.IsNullOrEmpty(path))
	 path = Page.Request.Path;

	 return Utils.ToUri ( path).ToString () +"?"+ret;
	 }

	

	public static string RemoveQueryParameter(string par)
	 {
	 return RemoveQueryParameter(new string[] { par });
	 }
	 public static string RemoveQueryParameter(string[] pars)
	 {
	 string ret = string.Empty;
	 Dictionary<string, string> OldQueryString = new Dictionary<string, string>();

	 foreach (string key in Page.Request.QueryString.AllKeys)
	 {
	 bool isAdd = true;
	 foreach (string s in pars)
	 {
	 if (s.ToLower() == key.ToLower())
	 isAdd = false;
	 }
	 if(isAdd )
	 OldQueryString.Add(key, Page.Request.QueryString[key]);


	 foreach (KeyValuePair<string, string> item in dics)
	 {
	 if (!OldQueryString.ContainsKey(item.Key))
	 OldQueryString.Add(item.Key, item.Value);
	 else
	 OldQueryString[item.Key] = item.Value;
	 }

	 foreach (KeyValuePair<string, string> item in OldQueryString)
	 {
	 ret += string.Format("{0}={1}&", item.Key, item.Value);
	 }

	 if (ret.EndsWith("&"))
	 ret = ret.Substring(0, ret.Length - 1);

	 if (string.IsNullOrEmpty(path))
	 path = Page.Request.Path;

	 return Utils.ToUri(path).ToString() + "?" + ret;
	 }
	 }

试试其它关键字

　查询字符串　

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