IF checkedListBox1 Items are true then items will be checked

//Create SQL strings
    string sql = "select *from DatabaseLogin where user_id='" + textBox2.Text + "'";

    using (OleDbConnection dbConnection = new OleDbConnection(@"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=D:\MIS SYSTEM\AniPharmic\AniPharmic\MedicalDb.accdb;Jet OLEDB:Database Password="))
    {
        //dbAdapter = new OleDbDataAdapter(sql, dbConnection); //You dont need it
        //dataTable = new DataTable(); //don't need it
        dbConnection.Open();
        using (OleDbCommand oCommand = new OleDbCommand(sql, dbConnection))
        {
            using (OleDbDataReader dbReader = oCommand.ExecuteReader())
            {
                while (dbReader.Read())
                {
                    //int iRow = dataTable.Rows.Count; //always zero you never used the datable
                    //MessageBox.Show("Count " + iRow.ToString());
                    //MessageBox.Show(dbReader.ToString());
                    checkedListBox1.Items.Add(dbReader["stckdemge"].ToString());
               //     checkBox1(dbReader[].ToString()

                }

            } //reader closed and disposed
        }//command disposed
    } //connection closed