Asp.net弹出新窗口，获得返回值

刚刚在坛子里看到这么一个问题，这里也做个标记：http://topic.youkuaiyun.com/u/20080411/14/7b0f9da5-0413-4149-91e9-72c3df3018a3.html?seed=327251592

Page.aspx:

< html  xmlns ="http://www.w3.org/1999/xhtml" >
< head  runat ="server" >
     < title > 无标题页 </ title >
     < script  type ="text/javascript"   > ...
      function Pop() 
  ...{       
   var result=showModalDialog('downs.aspx','subpage','dialogWidth:400px;dialogHeight:300px;center:yes;help:no;resizable:no;status:no');  //打开模态子窗体,并获取返回值
   document.getElementById("txt_id").value=result.split("'")[0];  //返回值分别赋值给相关文本框
   document.getElementById("txt_name").value=result.split("'")[1];
   document.getElementById("txt_pwd").value=result.split("'")[2];
  } 
     </ script >
</ head >
< body >
     < form  id ="form1"  runat ="server" >
     < div >
     < asp:TextBox  ID ="txt_id"  runat ="server"   ></ asp:TextBox >
     < asp:TextBox  ID ="txt_name"  runat ="server"   ></ asp:TextBox >
     < asp:TextBox  ID ="txt_pwd"  runat ="server"   ></ asp:TextBox >
     < br  />
    
     < asp:Button  ID ="btnPop"  runat ="server"  Text ="PoPWindows"  OnClientClick  ="Pop()"   />
    
     </ div >
     </ form >
</ body >
</ html >

downs.aspx: 弹出页面

< html  xmlns ="http://www.w3.org/1999/xhtml" >
< head  runat ="server" >
     < title > 无标题页 </ title >
     < script  type ="text/javascript"   > ...
     function cc(infor_id,infor_name,infor_psw) //参数分别为id,name和password
 ...{ 
   window.returnValue= infor_id+"'"+infor_name+"'"+infor_psw;   //返回值    
   window.close(); 
 }

     </ script >
</ head >
< body >
     < form  id ="form1"  runat ="server" >
     < div >
     < asp:GridView  ID ="gvshow"  runat ="server"  BackColor ="White"  BorderColor ="#CCCCCC"  
            BorderStyle ="None"  BorderWidth ="1px"  CellPadding ="3"  
            onrowdatabound ="gvshow_RowDataBound"   >
         < FooterStyle  BackColor ="White"  ForeColor ="#000066"   />
         < RowStyle  ForeColor ="#000066"   />
         < PagerStyle  BackColor ="White"  ForeColor ="#000066"  HorizontalAlign ="Left"   />
         < SelectedRowStyle  BackColor ="#669999"  Font-Bold ="True"  ForeColor ="White"   />
         < HeaderStyle  BackColor ="#006699"  Font-Bold ="True"  ForeColor ="White"   />
         </ asp:GridView >
     </ div >
     </ form >
</ body >
</ html >

downs.cs:弹出页面后台代码：

public   partial   class  downs : System.Web.UI.Page
... {
    protected void Page_Load(object sender, EventArgs e)
    ...{
        if (!IsPostBack)
        ...{
            SetBind();
        }
    }
    public void SetBind()
    ...{
        string ConnString = ConfigurationManager.ConnectionStrings["ConnStr"].ToString();
        using (SqlConnection conn = new SqlConnection(ConnString))
        ...{
            conn.Open();
            string sql = "select top 10 gwid,machtype,isok from allinfor";
            SqlDataAdapter ada = new SqlDataAdapter(sql, conn);
            DataSet ds = new DataSet();
            ada.Fill(ds);
            gvshow.DataSource = ds.Tables[0];
            this.gvshow.DataBind();
        }
    }
    protected void gvshow_RowDataBound(object sender, GridViewRowEventArgs e)
    ...{
        if (e.Row.RowType == DataControlRowType.DataRow)
        ...{
            e.Row.Attributes.Add("onclick", "cc('" + e.Row.Cells[0].Text + "','" + e.Row.Cells[1].Text + "','" + e.Row.Cells[2].Text + "')");

        }
    }
}