实现无刷新联动例子汇总

2019-11-20 12:26:34

字体：大中小

来源：转载

供稿：网友

Iframe实现无刷新联动

iframe的无刷新其实是局部刷新，状态栏的滚动条还是会滚动，只是页面不会闪烁，这是一种比较老的技术了，在处理的数据两大的时候会比较慢，在本例中需要两个页面：index.aspx和frame.asapx,index.aspx用来显示界面，其中有一个iframe标记，指向frame.aspx页用来显示结果
index.aspx前台代码

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Index.aspx.cs" Inherits="_Default" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head id="Head1" runat="server">  <title>无标题页</title>  <script type="text/javascript">    function Query() {      var ddlpro = document.getElementById('ddlPro');      var pro = ddlpro.options[ddlpro.selectedIndex].innerText;      if (pro != "") {        document.getElementById("iframe1").src = "frame.aspx?Pro=" + pro;      }    }  </script></head><body>  <form id="form2" runat="server">  <div>    <table border="1" cellpadding="3" cellspacing="0" width="600px">      <tr>        <td colspan="2" align="center">          Iframe实现局部刷新        </td>      </tr>      <tr>        <td>          省份名称:        </td>        <td>          <select id="ddlPro" style="width: 201px">            <option value="湖北">湖北</option>            <option value="河北">河北</option>            <option value="广东">广东</option>            <option value="河南">河南</option>          </select>          <input id="Button3" type="button" value="查询" onclick="Query()" />        </td>      </tr>      <tr>        <td>          显示城市列表        </td>        <td>          <iframe src="frame.aspx" style="text-align: center" id="iframe1" width="100%"            height="100%" frameborder="0" scrolling="no" />        </td>      </tr>    </table>  </div>  </form></body></html>

frame.aspx的前台代码：

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="frame.aspx.cs" Inherits="myframe" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head id="Head1" runat="server">  <title>无标题页</title></head><body>  <form id="form2" runat="server">  <div>    <asp:DropDownList ID="ddlCity" runat="server" Width="179px">    </asp:DropDownList>  </div>  </form></body></html>

frame.aspx后台代码：

using System;using System.Data;using System.Configuration;using System.Collections;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;public partial class myframe : System.Web.UI.Page{  protected void Page_Load(object sender, EventArgs e)  {    string pro = Request.QueryString["pro"];    switch (pro)    {      case "湖北":        this.ddlCity.Items.Clear();        this.ddlCity.Items.Add("武汉");        this.ddlCity.Items.Add("黄冈");        this.ddlCity.Items.Add("黄石");        this.ddlCity.Items.Add("襄樊");        break;      case "河北":        this.ddlCity.Items.Clear();        this.ddlCity.Items.Add("石家庄");        this.ddlCity.Items.Add("唐山");        this.ddlCity.Items.Add("承德");        this.ddlCity.Items.Add("邯郸");        break;      case "广东":        this.ddlCity.Items.Clear();        this.ddlCity.Items.Add("广州");        this.ddlCity.Items.Add("佛山");        this.ddlCity.Items.Add("深圳");        this.ddlCity.Items.Add("珠海");        break;      case "河南":        this.ddlCity.Items.Clear();        this.ddlCity.Items.Add("郑州");        this.ddlCity.Items.Add("新乡");        this.ddlCity.Items.Add("安阳");        this.ddlCity.Items.Add("信阳");        break;    }  }}

JavaScript无刷新联动

前台页面代码：

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="index.aspx.cs" Inherits="jacascript_Default" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head id="Head1" runat="server">  <title>无标题页</title>  <script type="text/javascript">    function FillData(strcity) {      document.getElementById("ddlCity").options.length = 0;      var indexofcity;      var city;      while (strcity.length > 0) {        indexofcity = strcity.indexOf(",");        if (indexofcity > 0) {          city = strcity.substring(0, indexofcity);          strcity = strcity.substring(indexofcity + 1);          document.getElementById("ddlCity").add(new Option(city, city));        }        else {          document.getElementById("ddlCity").add(new Option(strcity, strcity));          break;        }      }    }  </script></head><body>  <form id="form2" runat="server">  <div>    <table width="700px" border="1" cellpadding="5" cellspacing="0">      <tr>        <td colspan="2" align="center">          脚本方法实现刷新        </td>      </tr>      <tr>        <td>          选择省份:        </td>        <td>          <select id="ddlPro" style="width: 201px">            <option value="湖北">湖北</option>            <option value="河北">河北</option>            <option value="广东">广东</option>            <option value="河南">河南</option>          </select>          <input id="btnQuery" type="button" value=" 查询" onclick="City()" />        </td>      </tr>      <tr>        <td>          城市:        </td>        <td>          <asp:DropDownList ID="ddlCity" runat="server" Width="201px">          </asp:DropDownList>        </td>      </tr>    </table>  </div>  </form></body></html>

后台代码：

using System;using System.Data;using System.Configuration;using System.Collections;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;using System.Text;public partial class jacascript_Default : System.Web.UI.Page{  protected void Page_Load(object sender, EventArgs e)  {    StringBuilder myscript = new StringBuilder();    myscript.Append("function City() {/n");    myscript.Append("var ddlpro=document.getElementById('ddlPro');/n");    myscript.Append("var pro=ddlpro.options[ddlpro.selectedIndex].innerText;/n");    //myscript.Append("var pro=document.getElementById('txtPro').value;/n");    myscript.Append("switch(pro) { /n");    myscript.Append("case '湖北':/n");    myscript.Append("FillData('" + GetCityStr("湖北") + "');/n");    myscript.Append("break;/n");    myscript.Append("case '河北':/n");    myscript.Append("FillData('" + GetCityStr("河北") + "');/n");    myscript.Append("break;/n");    myscript.Append("case '广东':/n");    myscript.Append("FillData('" + GetCityStr("广东") + "');/n");    myscript.Append("break;/n");    myscript.Append("case '河南':/n");    myscript.Append("FillData('" + GetCityStr("河南") + "');/n");    myscript.Append("break;}/n");    myscript.Append("}/n");    Page.ClientScript.RegisterClientScriptBlock(typeof(string), "city", myscript.ToString(), true);  }  private string GetCityStr(string pro)  {    string city = "";    switch (pro)    {      case "湖北":        city = "武汉,黄冈,黄石,襄樊";        break;      case "河北":        city = "石家庄,唐山,承德,邯郸";        break;      case "广东":        city = "广州,佛山,深圳,珠海";        break;      case "河南":        city = "郑州,新乡,安阳,信阳";        break;    }    return city;  }}

CallBack无刷新联动

前台代码：

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="index.aspx.cs" Inherits="callback_Default" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head id="Head1" runat="server">  <title>无标题页</title>  <script type="text/javascript"> function FillData() { var ddlpro=document.getElementById('ddlPro'); var pro=ddlpro.options[ddlpro.selectedIndex].value; <% =ClientScript.GetCallbackEventReference(this,"pro","FillDll",null) %>  } function FillDll(strcity) {    document.getElementById("ddlCity").options.length=0; var indexofcity; var city; while(strcity.length>0) {      indexofcity=strcity.indexOf(","); if(indexofcity>0) {        city=strcity.substring(0,indexofcity);        strcity=strcity.substring(indexofcity+1);        document.getElementById("ddlCity").add(new Option(city,city));      } else {        document.getElementById("ddlCity").add(new Option(strcity,strcity)); break;      }    }  }  </script></head><body>  <form id="form2" runat="server">  <div>    <table width="700px" border="1" cellpadding="5" cellspacing="0">      <tr>        <td colspan="2" align="center">          callback方法实现刷新        </td>      </tr>      <tr>        <td>          选择省份:        </td>        <td>          <select id="ddlPro" style="width: 200px">            <option value="湖北">湖北</option>            <option value="河北">河北</option>            <option value="广东">广东</option>            <option value="河南">河南</option>          </select>          <input id="btnQuery" type="button" value=" 查询" onclick="FillData()" />        </td>      </tr>      <tr>        <td>          城市:        </td>        <td>          <asp:DropDownList ID="ddlCity" runat="server" Width="201px">          </asp:DropDownList>        </td>      </tr>    </table>  </div>  </form></body></html>

后台代码：

using System;using System.Data;using System.Configuration;using System.Collections;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;public partial class callback_Default : System.Web.UI.Page,ICallbackEventHandler{ private string _data; protected void Page_Load(object sender, EventArgs e) {  } ICallbackEventHandler 成员}

Ajax无刷新联动

该例子也要用到两个页面：oec203index.aspx和datapage.aspx. datapage.aspx主要用来回送要显示的数据
.aspx页面前台代码：

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="index.aspx.cs" Inherits="ajax_Default" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head id="Head1" runat="server">  <title>无标题页</title>  <script type="text/javascript">    var xmlhttp;    function getData() {      var ddlpro = document.getElementById("ddlPro");      var pro = ddlpro.options[ddlpro.selectedIndex].innerText;      xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");      xmlhttp.onreadystatechange = statechange;      xmlhttp.Open("GET", "datapage.aspx?pro=" + pro, true);      xmlhttp.Send();    }    function statechange() {      if (xmlhttp.readystate == 4) {        if (xmlhttp.status == 200) {          FillData(xmlhttp.responseText);        }      }    }    function FillData(strcity) {      document.getElementById("ddlCity").options.length = 0;      var indexofcity;      var city;      while (strcity.length > 0) {        indexofcity = strcity.indexOf(",");        if (indexofcity > 0) {          city = strcity.substring(0, indexofcity);          strcity = strcity.substring(indexofcity + 1);          document.getElementById("ddlCity").add(new Option(city, city));        }        else {          document.getElementById("ddlCity").add(new Option(strcity, strcity));          break;        }      }    }  </script></head><body>  <form id="form2" runat="server">  <div>    <table width="700px" border="1" cellpadding="5" cellspacing="0">      <tr>        <td colspan="2" align="center">          ajax方法实现刷新        </td>      </tr>      <tr>        <td>          选择省份:        </td>        <td>          <select id="ddlPro" style="width: 201px">            <option value="湖北">湖北</option>            <option value="河北">河北</option>            <option value="广东">广东</option>            <option value="河南">河南</option>          </select>          <input id="btnQuery" type="button" value=" 查询" onclick="getData()" />        </td>      </tr>      <tr>        <td>          城市:        </td>        <td>          <asp:DropDownList ID="ddlCity" runat="server" Width="201px">          </asp:DropDownList>        </td>      </tr>    </table>  </div>  </form></body></html>

datapage.aspx后台代码：

using System;using System.Data;using System.Configuration;using System.Collections;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;public partial class ajax_datapage : System.Web.UI.Page{  protected void Page_Load(object sender, EventArgs e)  {    string pro = Request.QueryString["pro"];    Response.Clear();    switch (pro)    {      case "湖北":        Response.Write("武汉,黄冈,黄石,襄樊");        break;      case "河北":        Response.Write("石家庄,唐山,承德,邯郸");        break;      case "广东":        Response.Write("广州,佛山,深圳,珠海");        break;      case "河南":        Response.Write("郑州,新乡,安阳,信阳");        break;    }  }}

以上所述就是本文的全部内容了，希望大家能够喜欢。

上一篇：JavaScript中String.prototype用法实例

下一篇：javascript中CheckBox全选终极方案