How to make checkbox true from database value

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C#

It is a windows application, I am retrieving data (items) from database into form.
In the form many checkboxlist will appear dynamically to list out the items. I used button click event to fetch data from database after fetching data (items).
If items exists in the checkboxlist (inside many checkboxes are created) then correct check box should get ticked.
I used below coding to finish this but unable to achieve the task [note: I tried in datagridview its appearing fine, but problem in checkboxlist]
Here ch11 is a checkboxlist name.

From the database I am retrieving valued like

menugroupid menuitems
1            33,
1            55,

please help me out.,

I have created checkboxlist dynamically using below coding
NOte:Here Dhal is a groupbox name.

  CheckedListBox ch1 = new CheckedListBox();


 public void menu_items_in_groupbox()
        {            
            try
            {
                gn.cnopen();
                string fetch_group_name = "select group_id,group_name,max_items from menu_group";
                SqlCommand cmd = new SqlCommand(fetch_group_name, gn.cn());
                DataTable dt = new DataTable();
                SqlDataAdapter da = new SqlDataAdapter(cmd);
                da.Fill(dt);
		 if (dt.Rows[j]["group_name"].ToString() == "dhal")
                        {
                             max2 = Convert.ToInt32(dt.Rows[j]["max_items"]);
                            dhalitems.Text = "Any"+max2.ToString();
                            group2 = Convert.ToInt32(dt.Rows[j]["group_id"]); 

                            string menu_items1 = "select itemid,item_name from menu_items where group_id=";
                            menu_items1 = menu_items1 + "(select group_id from menu_group where group_name='dhal')";
                            DataTable fill_menus1 = new DataTable();
                            SqlDataAdapter get_menus1 = new SqlDataAdapter(menu_items1, gn.cn());

                            get_menus1.Fill(fill_menus1);
                            int x_axis = 12, y_axis = 34;

                            for (int k = 0; k <= fill_menus1.Rows.Count - 1; k++)
                            {

                                ListItem li1 = new ListItem();
                                li1.Text = fill_menus1.Rows[k]["item_name"].ToString();
                                li1.Value = fill_menus1.Rows[k]["itemid"].ToString();
                                ch1.Items.Add(li1);
                                ch1.Location = new System.Drawing.Point(x_axis, y_axis);
                                x_axis += 10;
                                y_axis += 10;
                            }
                            Dhal.Controls.Add(ch1);
                        }
		}
	}




Below code to retreive values from database.

public void load_breakfastitems_toedit()
        {
            try
            {
                gn.cnopen();
                string fetch_br_items = "select menu_items_id,menu_group_id from MENU_ITEMS_CHOOSED_HALLBOOKED_CUSTOMERS";
                fetch_br_items = fetch_br_items + " where menu_id=1 and hall_booked_id=" + mainhall_id + "";
                cmd = new SqlCommand(fetch_br_items, gn.cn());
                DataTable getdata = new DataTable();

                SqlDataAdapter filldata = new SqlDataAdapter(cmd);
                filldata.Fill(getdata);

                if (getdata.Rows.Count > 0)
                {
                    dataGridView1.DataSource = getdata;                 

                    DataTable dt1 = new DataTable();
                    DataColumn cd = new DataColumn("menu_group_id");
                    DataColumn menuitem = new DataColumn("menu_items_id");
                    menuitem.DataType = typeof(string);

                    cd.DataType = typeof(int);
                    dt1.Columns.Add(cd);
                    dt1.Columns.Add(menuitem);
                    DataRow[] dr;

                    dr = getdata.Select("menu_group_id=" + 1 + "");
                    foreach (DataRow temp in dr)
                    {
                        dt1.ImportRow(temp);
                    }
                  
                    string var = dt1.Rows[0]["menu_items_id"].ToString();
                    string[] array = var.Split(',');

                    
                    foreach (ListItem item in this.ch11.Items)
                    {
                        foreach (string s in array)
                        {
                            if (item.Value == s)
                            {
                                item.Selected = true;
                                                              
                            }
                        }                      
                    }                  
                }
            }
            catch (SqlException err)
            {
                MessageBox.Show(err.Message);
            }
        }

        private void button4_Click(object sender, EventArgs e)
        {
            load_breakfastitems_toedit();
        }