Hello Telerik Team

I'm using RadControl version : 2011.1.315.35 (for ASP.NET AJAX). I am using the Radgrid control also.
I have a simple problem. I just want to load record in Radgrid control on selection of a value in Radcombobox.
Here is the code,

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;
using Telerik.Web.UI;

public partial class GridDemo2 : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

        using (SqlConnection con1 = new SqlConnection(ConfigurationManager.ConnectionStrings["connect"].ConnectionString))
        {
            using (SqlDataAdapter sda1 = new SqlDataAdapter())
            {
                string qry = "select * from Categories";
                sda1.SelectCommand = new SqlCommand(qry, con1);
                DataTable dt = new DataTable();

                con1.Open();
                try
                {
                    sda1.Fill(dt);
                    RadGrid1.DataSource = dt;
                }
                catch (Exception ex) {
                }
                finally
                {
                    con1.Close();
                }
            }
        }
    }
    protected void RadComboBox1_SelectedIndexChanged(object sender, RadComboBoxSelectedIndexChangedEventArgs e)
    {
        if (IsPostBack)
        {
            using (SqlConnection con1 = new SqlConnection(ConfigurationManager.ConnectionStrings["connect"].ConnectionString))
            {                
              using (SqlDataAdapter sda1 = new SqlDataAdapter())
            {
              string qry = "select * from Categories where Category_Name = '" + RadComboBox1.SelectedValue.ToString() + "'";
                sda1.SelectCommand = new SqlCommand(qry, con1);
                DataTable dt = new DataTable();

                con1.Open();
                try
                {
                    sda1.Fill(dt);
                    RadGrid1.DataSource = dt;
                }
                catch (Exception ex) {
                }
                finally
                {
                    con1.Close();
                }
            }
        }
    }
}

In this example I have taken a radcombobox which is bind to Categories table and datafield value is category name.
I want to fill the rad grid when radcombobox value is selected. I am passing that value in the query and on that query i want to load that 
record in the radgrid. I am not able to bind the data to radgrid.

If I am wrong in coding then please help me out.

Thanks in advance.

Regards
Anagha

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<telerik:RadListBox ID="RadListBox1" runat="server" Width="280px" Height="300px"
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Thanks
Jaichand Sahany

Hello,

I have a question regarding data binding a RadGrid that is hosted in a "long" list of GridTableViews and RadGrids.

The scenarios is this:
1. We have hierarchy of 4 levels . All levels are representing by a business object that has a property holding a collection of the next level. (Let's say firstLevel->secondLevel and so on).

Example:
'class FirstLevel
{
type ID;
SecondLevel[] SecondLevels;
}'
2. The last level (forthLevel) has in it's signature 2 collections. (firstSubLevel, secondSubLevel).

Example:
'class ForthLevel
{
type ID;
FristSubLevel[] FirstSubLevels;
SecondSubLevel[] SecondSubLevels;
}'

Because displaying 5 levels as "successive" grids might be hard for a user to follow we decided the two sub-levels  to be displayed in a RadMultiPage control (just as in the RadGrid demo http://demos.telerik.com/aspnet-ajax/grid/examples/hierarchy/nestedviewtemplate/defaultcs.aspx ) . To do this,  after a long list of (DetailTables as GridTableView), we try to set the last one's  NestedViewTemplate.

The problem I am facing is that I don't seem to find a way to bind the two "sub-level" RadGrid controls to the right data. Please keep in mind that all this data is coming as a collection of business objects.

How can I achieve this ?

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