Hi,
I have another solution for you. See if this is okay with your user. You see the dataset is basically an asp.net type and there is no equivalent for it in javascript. So no matter what I do somewhere I have to compromise and I have to reach out to the server. There might definitely be some solution using Ajax and by trying to store the selected values in a database or something of that nature. I will definitely try the options out and let you know. Here I am giving below the code for the latest versions of Default.aspx and Default2.aspx after getting rid of the button in the parent page. But in this case I am again doing a postback but this time through javascript. Do take a look at this solution I am giving below because I think in my opinion this is the nearest I can get to what you need. To actually pass a dataset to another window without reaching out to the server, I require some more time. If you can give me some time I will try and see if I can possibly get an xml representation of the dataset and pass that to the parent window without reaching the server at all. Or alternately I can think up of some ajax solution or something of that kind. I give below the latest version of the code which I have created. You can take a look. If this is not acceptable I need a little time to think up of some way by which I can do what you actually want. You see it is a bit of a challenging task. Do definitely try out this solution. It is the nearest I can get to what you need at the moment.
Html Code for Default.aspx
<%@ Page Language="C#" EnableEventValidation="false" AutoEventWireup="true" CodeFile="Default.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>Untitled Page</title>
<script type="text/ecmascript" language=javascript>
function popwindow()
{
var url = "Default2.aspx?id=" + "<%=mydatalist.ClientID%>";
window.open(url,"mywindow","width=300,height=300").focus;
}
function UpdateGrid(){
__doPostBack("<%=mya.ClientID%>","");
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:ListBox ID="mydatalist" runat="server"></asp:ListBox>
<a runat="server" id="mya" href="javascript:popwindow();">Click on me</a>
<asp:DataGrid ID="mydatagrid" runat="server" OnSelectedIndexChanged="mydatagrid_SelectedIndexChanged"></asp:DataGrid>
</div>
</form>
</body>
</html>
Code behind for Default.aspx.cs
using System;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;
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 _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
Session["DataSet"] = null;
DataTable dt = new DataTable();
dt.Columns.Add("Col1", System.Type.GetType("System.String"));
DataRow dr = dt.NewRow();
dt.Rows.Add(dr);
dt.Rows[0][0] = "No Items Selected";
mydatagrid.DataSource = dt.DefaultView;
mydatagrid.DataBind();
string s = ClientScript.GetPostBackClientHyperlink(mya, "");
}
else
{
string s = ClientScript.GetPostBackClientHyperlink(mya, "");
if (Session["DataSet"] != null)
{
DataSet ds = (DataSet)Session["DataSet"];
for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
{
mydatalist.Items.Add(new ListItem(ds.Tables[0].Rows[i]["Col1"].ToString(), ds.Tables[0].Rows[i]["Col2"].ToString()));
}
mydatagrid.DataSource = ds.Tables[0].DefaultView;
mydatagrid.DataBind();
}
}
}
protected void mydatagrid_SelectedIndexChanged(object sender, EventArgs e)
{
}
protected void mya_Click(object sender, EventArgs e)
{
DataSet ds = (DataSet)Session["DataSet"];
mydatagrid.DataSource = ds.Tables[0].DefaultView;
mydatagrid.DataBind();
}
}
Html code for Default2.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default2.aspx.cs" Inherits="Default2" %>
<!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>Untitled Page</title>
</head>
<script language="javascript" type="text/javascript">
function populate_parent_combo(){
var mdat = self.location.search.substring(4);
if(self.opener && self.opener.document.getElementById(mdat)){
var parentselect = self.opener.document.getElementById(mdat);
for (var i = 0; i < parentselect.options.length; i++)
parentselect.options[i] = null;
parentselect.options.length = 0;
var ldat = "<%= ListBox1.ClientID %>";
if(document.getElementById(ldat))
{
var selecthere = document.getElementById(ldat)
for(var i = 0 ; i < selecthere.options.length ; i++){
if(selecthere.options[i].selected){
parentselect.options[parentselect.options.length] = new Option(selecthere.options[i].text, selecthere.options[i].value);
}
}
}
}
return true;
}
</script>
<body>
<form id="form1" runat="server">
<div>
<asp:ListBox ID="ListBox1" runat="server" SelectionMode="Multiple">
<asp:ListItem>Num1</asp:ListItem>
<asp:ListItem>Num2</asp:ListItem>
<asp:ListItem>Num3</asp:ListItem>
</asp:ListBox>
<asp:Button ID="Button1" runat="server" OnClientClick="populate_parent_combo();" OnClick="Button1_Click1" Text="Button" />
</div>
</form>
</body>
</html>
Code Behind for Default2.aspx.cs
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 Default2 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button1_Click1(object sender, EventArgs e)
{
DataTable dt = new DataTable("MyTable");
dt.Columns.Add("Col1", System.Type.GetType("System.String"));
dt.Columns.Add("Col2", System.Type.GetType("System.String"));
for (int i = 0, j = 0; i < ListBox1.Items.Count; i++)
{
if (ListBox1.Items[i].Selected == true)
{
DataRow dr = dt.NewRow();
dt.Rows.Add(dr);
dt.Rows[j]["Col1"] = ListBox1.Items[i].Text;
dt.Rows[j]["Col2"] = ListBox1.Items[i].Value;
j++;
}
}
DataSet ds = new DataSet("MyDataset");
ds.Tables.Add(dt);
Session["DataSet"] = ds;
Response.ClearContent();
Response.Write("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 Transitional//EN\" ><html><head><script language=\"javascript\">window.opener.UpdateGrid();window.close();</script></head></html>");
Response.Flush();
Response.Close();
}
}
Mind you, I still am not saying what you are asking for is impossible. There definitely should be a way. If you can give me a little time I will come up with something.
Hi, Sr_jay,
I have try your sample..
I have try few ways to work around on the sample that you provide me.
Is it possible to make the dataset data to be bring to the parent page without pressing the post back button on the parent page and without the parent page refresh. I have change the post back button that you show me as "My basket " button, it seems that my user cannot accept this idea. Is it to do so in asp.net ??