我新建了一个查询页(Select.aspx)和一个获取查询结果的页(GetSelectData.aspx)
下面是select.aspx的js代码:
- JScript code
var xmlhttp;function GetData(){ var time=document.getElementById("<%=TimeTB.ClientID%>").value; var scity=document.getElementById("<%=SCityTB.ClientID%>").value; var dcity=document.getElementById("<%=DCityBT.ClientID%>").value; if(window.ActiveXObject) { xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");//IE浏览器 } else if(window.XMLHttpRequest)//非IE浏览器 { xmlhttp=new XMLHttpRequest(); } else { alert("创建XMLHttpRequest对象失败!"); return; } xmlhttp.Open("GET","GetSelectData.aspx?stime="+time+"&scity="+scity+"&dcity="+dcity,false); xmlhttp.onreadystatechange=handlfunc; xmlhttp.send(null);}function handlfunc()//获取数据后处理函数{ if(xmlhttp.readystate==4) { if(xmlhttp.status==200) { var data=bytes2BSTR(xmlhttp.ResponseBody); var start=data.indexOf("查找结果"); var end=data.indexOf("结束"); var finaldata=data.substring(start+8,end); document.write(xmlhttp.ResponseText); //document.getElementById('data_div').innerHTML=data; //document.getElementById("data_div").innerHTML=xmlhttp.ResponseText; } } GetSelectData.aspx页面的后台代码：
- C# code
protected void Page_Load(object sender, EventArgs e) { string time = "2009-08-05",scity="南昌",dcity="景德镇"; if (!IsPostBack) { try { time = Request.QueryString["stime"].ToString(); scity = Request.QueryString["scity"].ToString(); dcity = Request.QueryString["dcity"].ToString(); } catch (Exception ex) { Response.Redirect("ErrorPage.htm"); } LoadData(time, scity, dcity); } } public void LoadData(string time,string scity,string dcity) { SqlParameter[] sp ={DBAccess.MakeParam("@stime",SqlDbType.VarChar,time), DBAccess.MakeParam("@scity",SqlDbType.VarChar,scity), DBAccess.MakeParam("@spoint",SqlDbType.VarChar,""), DBAccess.MakeParam("@dcity",SqlDbType.VarChar,dcity), DBAccess.MakeParam("@dpoint",SqlDbType.VarChar,"") }; int flag = 0; DataView dv = DBAccess.GetData("qiche_SelectBusInfo", sp, out flag).Tables[0].DefaultView; if (flag == 11) { Response.Redirect("ErrorPage.htm"); } this.DataList1.DataSource = dv; this.DataList1.DataBind(); }现在问题，当输入查询条件时，无查询到数据，得到是GetSelectData.aspx页面没绑定数据时的东西.
还有就当用responsebody时，出现乱码，如何解决。
小弟，刚开始弄这个ajax这个东东。有很多不懂，现在是一头雾水。
------解决方案--------------------------------------------------------
解决方法:
在GetSelectData.aspx页面的后台重写Render方法和VerifyRenderingInServerForm方法
- C# code
protected override void Render(HtmlTextWriter writer) { HtmlTextWriter gridWriter = new HtmlTextWriter(new System.IO.StringWriter()); DataList1.RenderControl(gridWriter); //给ajax返回数据 Response.Write(gridWriter.InnerWriter.ToString()); } public override void VerifyRenderingInServerForm(System.Web.UI.Control control) { }
------解决方案--------------------------------------------------------