关于extaspnet自动补全的问题

oΟo坏尐孓﹎ · 发表于 2012-5-30 15:34:03

页面：
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<ext

ageManager ID="

ageManager1" runat="server" />
<ext

anel ID="

anel1" runat="server" Width="500px" >
         <Items>
            <ext

ropDownList ID="DropDownList1" runat="server" Width="300px"></ext

ropDownList>
         </Items>
      </ext

anel>
</form>
</body>
</html>

////////////////////////////////////////////////////////////////////////////////////////////////
if (!IsPostBack)
         {
            ExtAspNet.PageContext.RegisterStartupScript
                  (
                  "var d=Ext.getCmp('" + DropDownList1.ClientID + "');" +
                  " var t;" +
                  " var oldInput=\"\";" +
                  " d.listWidth=500;" +
                  " d.addListener(\"keyup\",function(f,e){ " +
                  " newInput=document.getElementById(\"" + DropDownList1.ClientID + "\").value;" +
                  " if (oldInput==newInput) {return;} " +
                  " oldInput=newInput;" +
                  " clearTimeout(t);" +
                  " t=setTimeout(\"__doPostBack('loaddata',newInput)\",1000)" +
                  "});"
                  );
         }
         else
         {
            if (Request["__EVENTTARGET"] == "loaddata")
            {
                  SqlConnection Conn = new SqlConnection(ConfigurationManager.AppSettings["c2cc.cn"]);
                  Conn.Open();
                  SqlCommand cmd = new SqlCommand(string.Format("SELECT ID,corp_name,state FROM corp where charindex('{0}',corp_name) > 0 and state >0", Request["__EVENTARGUMENT"]), Conn);
                  SqlDataReader dr = cmd.ExecuteReader(CommandBehavior.CloseConnection);
                  DropDownList1.Items.Clear();
                  while (dr.Read())
                  {
                     DropDownList1.Items.Add(new ExtAspNet.ListItem(dr["corp_name"].ToString(), dr["id"].ToString() + DateTime.Now.Ticks.ToString()));
                  }
                  dr.Close();
                  Conn.Close();

                  ExtAspNet.PageContext.RegisterStartupScript("document.getElementById(\"" + DropDownList1.ClientID + "\").value='" + Request["__EVENTARGUMENT"] + "';");
            }
         }
      }
      protected override void Render(HtmlTextWriter writer)
      {
         StringWriter strWriter = new StringWriter();
         base.Render(new HtmlTextWriter(strWriter));
         writer.Write(
            strWriter.ToString()
            .Replace("id: \"" + DropDownList1.ClientID + "\",", "id: \"" + DropDownList1.ClientID + "\",editable: true,hideTrigger:true,")
            );
      }

现在有一个问题，有时候输入中文不显示，还有用拼音输入中文词组的时候输入慢了会报错，可能我讲的不清楚，烦请大家帮我解决下

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