nested datalist in asp .net

Question

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SQL-Server-2005

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Hello,

I am created a project in which i am having two datalist in nested manner i.e(datalist within a datalist), i am getting the values from database for both the datalist. In the child datalist i am having checkbox, if i check the checkbox and click the button which is out of datalist the checked items has to be stored into the database.In breakpoint the checked item is showing checked = false so the checked item is not getting inserted into the database. please help me asap.

here is my aspx

XML

<%@ Page Language="C#" 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 runat="server">
    <title>Untitled Page</title>
    <script language="javascript" type="text/javascript">
function divexpandcollapse(divname) {
var div = document.getElementById(divname);
var img = document.getElementById('img' + divname);

if (div.style.display == "none") {
div.style.display = "inline";
img.src = "minus.gif";
} else {
div.style.display = "none";
img.src = "plus.gif";
}
}
</script>
</head>
<body>
    <form id="form1" runat="server">
    <div>

            <asp:DataList ID="outerDataList" runat="server" OnItemDataBound="outerRep_ItemDataBound">
                <ItemTemplate>
                    <a href="JavaScript:divexpandcollapse('div<%# Eval("BUSINESSUPLOAD_SERVICES_SERVICENAME") %>');">
<img id="imgdiv<%# Eval("BUSINESSUPLOAD_SERVICES_SERVICENAME") %>" width="9px" border="0" src="plus.gif" />
</a>
<asp:Label ID="lbl1" runat="server" Text='<%#Eval("BUSINESSUPLOAD_SERVICES_SERVICENAME") %>' />
                   <tr>
    <td>
    <div id="div<%# Eval("BUSINESSUPLOAD_SERVICES_SERVICENAME") %>" style="display: none; position: relative; left: 15px; overflow: auto; float:right">

                        <asp:DataList ID="innerDataList" runat="server" RepeatDirection="Horizontal">
                            <ItemTemplate>
    <%--<table cellpadding="5px" cellspacing="5px">
    <tr>
    <td>--%>
    <asp:CheckBox ID="dlchk" runat="server" Text='<%#Eval("BUSINESSUPLOAD_SUBSERVICES_SUB_SERVICENAME") %>' />
   <%-- </td>
    </tr>
    </table>--%>
    </ItemTemplate>
                        </asp:DataList>

                </ItemTemplate>
            </asp:DataList>

    </div>
    <asp:Button ID="btn1" runat="server" Text="Submit" onclick="btn1_Click" />
    </form>
</html>

here is my cs

C#

using System;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Data.SqlClient;
using System.Collections.Generic;

public partial class _Default : System.Web.UI.Page 
{
    string str = string.Empty;
    protected void Page_Load(object sender, EventArgs e)
    {
           BindData();
    }
    private void BindData()
    {
       
       SqlConnection cnn = new SqlConnection("Data Source=DOTNET-SYS8\\SQLEXPRESS;Initial Catalog=treatmentareas;Integrated Security=True");
            SqlDataAdapter cmd1 = new SqlDataAdapter("select * from MEDICALVOYAGER_BUSINESSUPLOAD_SERVICES", cnn);


            DataSet ds = new DataSet();
            cmd1.Fill(ds, "services");


            SqlDataAdapter cmd2 = new SqlDataAdapter("select * from MEDICALVOYAGER_BUSINESSUPLOAD_SUBSERVICES as sub,MEDICALVOYAGER_BUSINESSUPLOAD_SERVICES as serv where sub.BUSINESSUPLOAD_SERVICES_SERVICENAME=serv.BUSINESSUPLOAD_SERVICES_SERVICENAME", cnn);
            cmd2.Fill(ds, "subservices");


            ds.Relations.Add("myrelation", ds.Tables["services"].Columns["BUSINESSUPLOAD_SERVICES_SERVICENAME"], ds.Tables["subservices"].Columns["BUSINESSUPLOAD_SERVICES_SERVICENAME"]);
       
        outerDataList.DataSource = ds.Tables["services"];
        outerDataList.DataBind();
    }
 
    protected void outerRep_ItemDataBound(object sender, DataListItemEventArgs e)
    {
        if (e.Item.ItemType == ListItemType.Item)
        {
            DataRowView drv = e.Item.DataItem as DataRowView;
            DataList innerDataList = e.Item.FindControl("innerDataList") as DataList;
            innerDataList.DataSource = drv.CreateChildView("myrelation");
           

            innerDataList.DataBind();
        }
    }
    //protected void innerDl_ItemDataBound(object sender, DataListItemEventArgs e)
    //{

    //    var ck = e.Item.FindControl("dlchk") as CheckBox;
    //    if (ck != null)
    //    {
    //        ck.ID = ck.Text;
    //        ck.Text = "";
    //        if (IsPostBack && Request.Form[ck.UniqueID] != null)
    //        {
    //            ck.Checked = true;
    //        }
    //        if (ck.Checked == true)
    //        {
    //            str = str + ck.Text + ",";
    //        }
    //    }
            

    
    //}



    protected void btn1_Click(object sender, EventArgs e)
    {
        servicesselected();
        SqlConnection cnn = new SqlConnection("Data Source=DOTNET-SYS8\\SQLEXPRESS;Initial Catalog=MEDICALVOYAGER;Integrated Security=True");
        cnn.Open();
        SqlCommand com = new SqlCommand("insert into MEDICALVOYAGER_BUSINESSUPLOAD_SERVICES_SELECTED(BUSINESSUPLOAD_SUBSERVICES) values (@subservices)", cnn);
        
        com.Parameters.AddWithValue("@subservices", str);
       
        com.ExecuteNonQuery();
        Response.Write(str);
        cnn.Close();
    }
    protected void servicesselected()
    {
        //int itemCount1 = 0;
        //for (itemCount1 = 0; itemCount1 < outerDataList.Items.Count; itemCount1++)
        //{
        //    CheckBox chk = (CheckBox)outerDataList.Items[0].FindControl("innerDataList").FindControl("dlchk");
        //    if (chk.Checked!=false)
        //    {
        //        str = str + chk.Text + ",";
        //    }
        //}


        int itemCount1 = 0;
        for (itemCount1 = 0; itemCount1 < outerDataList.Items.Count; itemCount1++)
        {

            DataList childdl = outerDataList.Items[itemCount1].FindControl("innerDataList") as System.Web.UI.WebControls.DataList;
            foreach (DataListItem dl in childdl.Items)
            {
                CheckBox chk = (CheckBox)dl.FindControl("dlchk");

                if (chk != null)
                {
                    chk.ID = chk.Text;
                    chk.Text = "";
                    if (IsPostBack && Request.Form[chk.UniqueID] != null)
                    {
                        chk.Checked = true;
                    }
                    if (chk.Checked == true)
                    {
                        str = str + chk.Text + ",";
                    }
                }

                //if (chk.Checked != false)
                //{
                //    str = str + chk.Text + ",";
                //}
            }
        }
            //for (int itemCount = 0; itemCount < childdl.Items.Count; itemCount++)
            //{

            //    CheckBox chkbox1 = ((CheckBox)childdl.Items[itemCount].FindControl("dlchk"));

            //    if (chkbox1.Checked != false)
            //    {
            //        str = str + chkbox1.Text + ",";
            //    }
                

            //}


        }
}

please help me.

Posted 30-Jul-12 22:01pm

shabadiveda

Updated 30-Jul-12 22:06pm

Sebastian T Xavier

v3

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Kenneth Haugland · Answer 1 · 2012-07-31T09:27:00

Solution 1

You could check out this article:
A quick guide to using nested repeaters in ASP.NET[^]

Posted 31-Jul-12 9:27am

Kenneth Haugland

Comments

shabadiveda 31-Jul-12 21:59pm

my problem is i have to get the child items in horizontal directiion, if i use repeates i cant get the items in horizontal direction. I am achieving that by using repeatdirection property of datalist.
Any suggestion to make horizontal direction?