Implement no Refresh linkage example Rollup _javascript tips

Non-flush linkage for IFRAME implementation

The no refresh of the IFRAME is in fact a local refresh, the status bar scroll or will scroll, but the page will not blink, this is a relatively old technology, in the processing of data two times will be relatively slow, in this case requires two pages: Index.aspx and FRAME.ASAPX, Index.aspx is used to display the interface, which has an IFRAME tag pointing to the Frame.aspx page to display the result
Index.aspx Foreground Code

<%@ 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 ">  

Frame.aspx's foreground code:

<%@ 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 ">
 
 

Frame.aspx Background code:

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 "Hubei": this.ddlCity.Items.Clear ();
        THIS.DDLCITY.ITEMS.ADD ("Wuhan");
        THIS.DDLCITY.ITEMS.ADD ("Huanggang");
        THIS.DDLCITY.ITEMS.ADD ("Yellowstone");
        THIS.DDLCITY.ITEMS.ADD ("Xiangfan");
      Break
        Case "Hebei": This.ddlCity.Items.Clear ();
        THIS.DDLCITY.ITEMS.ADD ("Shijiazhuang");
        THIS.DDLCITY.ITEMS.ADD ("Tangshan");
        THIS.DDLCITY.ITEMS.ADD ("Chengde");
        THIS.DDLCITY.ITEMS.ADD ("Handan");
      Break
        Case "Guangdong": this.ddlCity.Items.Clear ();
        THIS.DDLCITY.ITEMS.ADD ("Guangzhou"); This.ddlCity.ItemS.add ("Foshan");
        THIS.DDLCITY.ITEMS.ADD ("Shenzhen");
        THIS.DDLCITY.ITEMS.ADD ("Zhuhai");
      Break
        Case "Henan": this.ddlCity.Items.Clear ();
        THIS.DDLCITY.ITEMS.ADD ("Zhengzhou");
        THIS.DDLCITY.ITEMS.ADD ("Xinxiang");
        THIS.DDLCITY.ITEMS.ADD ("Anyang");
        THIS.DDLCITY.ITEMS.ADD ("Xinyang");

    Break

 }
  }
}

JavaScript No Refresh Linkage

Front page code:

<%@ 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 ">  

Background code:

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 ' Hubei ': \ n"); MyScript.
    Append ("Filldata" + getcitystr ("Hubei") + "'); \ n"); MyScript.
    Append ("break;\n"); MyScript.
    Append ("Case ' Hebei ': \ n"); MyScript. Append ("Filldata" + getcitystr ("Hebei") + "");\ n "); MyScript.
    Append ("break;\n"); MyScript.
    Append ("Case ' Guangdong ': \ n"); MyScript.
    Append ("Filldata" + getcitystr ("Guangdong") + "'); \ n"); MyScript.
    Append ("break;\n"); MyScript.
    Append ("Case ' Henan ': \ n"); MyScript.
    Append ("Filldata" + getcitystr ("Henan") + "'); \ 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 "Hubei": City = "Wuhan, Huanggang, Huangshi, Xiangfan";
      Break
        Case "Hebei": City = "Shijiazhuang, Tangshan, Chengde, Handan";
      Break
        Case "Guangdong": City = "Guangzhou, Foshan, Shenzhen, Zhuhai";
      Break
        Case "Henan": City = "Zhengzhou, Xinxiang, Anyang, Xinyang";
    Break
  return to City;

 }
}

Callback No Refresh linkage

Foreground code:

<%@ 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 ">  

Background code:

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 member
}

Ajax No Refresh Linkage

This example also uses two pages: Oec203index.aspx and datapage.aspx. Datapage.aspx is primarily used to echo the data to be displayed
. aspx page foreground code:

<%@ 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 ">  

Datapage.aspx Background code:

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
      "Hubei":
        Response.Write ("Wuhan, Huanggang, Huangshi, Xiangfan");
        break;
      Case "Hebei":
        Response.Write ("Shijiazhuang, Tangshan, Chengde, Handan");
        break;
      Case "Guangdong":
        Response.Write ("Guangzhou, Foshan, Shenzhen, Zhuhai");
        break;
      Case "Henan":
        Response.Write ("Zhengzhou, Xinxiang, Anyang, Xinyang");
        break;
    }}}

The above mentioned is the entire content of this article, I hope you can enjoy.