// Method: Get List
        public List<lwdom_JobType_Model> Get_JobType_List()
        {
            // building the connection string
            // get the provider, activeStatus database name, and path
            connectionString = PSWkr.G_SQLDatabaseConnectionString;
            string strMsg = "";

            // create needed objects
            SqlConnection connection;

            // building sql command, chemcode is the Key
            string sqlStatement = "SELECT ID, JobType " +
                "FROM lwdom_JobType " +
                "ORDER BY JobType";

            // create List
            List<lwdom_JobType_Model> jtMod_List = new List<lwdom_JobType_Model>();

            try
            {
                connection = new SqlConnection(connectionString);
                connection.Open();

                SqlCommand command = new SqlCommand(sqlStatement, connection);
                SqlDataReader reader = command.ExecuteReader();

                // read table, populate model
                while (reader.Read())
                {
                    lwdom_JobType_Model jtMod = new lwdom_JobType_Model();

                    jtMod.ID = (reader[0] != DBNull.Value) ? (Int64)reader[0] : 0;
                    jtMod.JobType = (reader[1] != DBNull.Value) ? (string)reader[1] : "";
                    
                    // add Equipment to List
                    jtMod_List.Add(jtMod);
                }

                // close reader, close connection
                reader.Close();
                connection.Close();
                strMsg = "List Complete.";
            }
            catch (Exception errMsg)
            {
                strMsg = errMsg.Message.ToString();
            }

            // return List
            return jtMod_List;
        }
        // Configure Window to Allow ADD
        private void menuAddJobType_Click(object sender, RoutedEventArgs e)
        {
            // set the data context
            // Enable Add Button has been clicked, so release any data 
            // context reference
            DataContext = null;

            // Create a new model object and bind 
            // it to the dataContext
            DataContext = new lwdom_JobType_Model();

            ResetDisplayFields();
            ADDButtonConfiguration();
            labelStatus.Content = "";
        }
        // ADD Job Type record
        private void buttonADD_Click(object sender, RoutedEventArgs e)
        {
            lwdom_JobType_Model jtMod = new lwdom_JobType_Model();
            string strMsg = "";
            
            // load data
            jtMod.JobType = txtJobType.Text.Trim();

            // add the record
            strMsg = JTWkr.Add_JobType_Rec(jtMod);

            // display message
            labelStatus.Content = strMsg;
            ListModelsInGrid();
            ResetDisplayFields();
            InitialButtonConfiguration();
        }
        // UPDATE
        private void buttonUpdate_Click(object sender, RoutedEventArgs e)
        {
            lwdom_JobType_Model jtMod = new lwdom_JobType_Model();
            string strMsg = "";

            jtMod = LoadDataForUpdate();
            strMsg = JTWkr.Update_JobType_rec(jtMod);

            // message
            labelStatus.Content = strMsg;
            ListModelsInGrid();
            ResetDisplayFields();
            InitialButtonConfiguration();
        }
 // Display data from grid
 private void DisplayData(lwdom_JobType_Model jtMod)
 {
     lblID.Content = jtMod.ID;
     txtJobType.Text = jtMod.JobType;
 }
        // load data for update
        private lwdom_JobType_Model LoadDataForUpdate()
        {
            lwdom_JobType_Model jtMod = new lwdom_JobType_Model();

            jtMod.ID = Convert.ToInt64(lblID.Content.ToString());
            jtMod.JobType = txtJobType.Text.Trim();

            // return model
            return jtMod;
        }
        // Method: get record data based on id
        public lwdom_JobType_Model Get_SpecificJobType_Record(int recID)
        {
            string strMsg = "";

            // get the connection string
            connectionString = PSWkr.G_SQLDatabaseConnectionString;

            // create connection object
            SqlConnection connection = new SqlConnection(connectionString);

            // building sql command
            string sqlStatement = "SELECT ID, JobType " +
                "FROM lwdom_JobType " +
                "WHERE ID=@ID";

            // SqlCommand
            SqlCommand command = new SqlCommand(sqlStatement, connection);

            // Create object base on LW Jobtype Model (jtMod)
            lwdom_JobType_Model jtMod = new lwdom_JobType_Model();

            try
            {
                // open the connection           
                connection.Open();

                command.Parameters.AddWithValue("@ID", recID);

                // execute the reader
                SqlDataReader reader = command.ExecuteReader();

                // populate the invoice list
                if (reader.Read())
                {
                    jtMod.ID = (reader[0] != DBNull.Value) ? (Int64)reader[0] : 0;
                    jtMod.JobType = (reader[1] != DBNull.Value) ? (string)reader[1] : "";
                }

                // the close
                reader.Close();
            }
            catch (Exception e)
            {
                strMsg = e.Message.ToString();
            }

            // the close
            connection.Close();

            // return the Model
            return jtMod;
        }
        // Method: update record
        public string Update_JobType_rec(lwdom_JobType_Model jtMod)
        {
            // Method: update selected Hours Master recore 
            // update the database
            string strMsg = "";

            // get the connection string
            connectionString = PSWkr.G_SQLDatabaseConnectionString;

            // create connection object
            SqlConnection connection = new SqlConnection(connectionString);

            // building sql command
            string sqlStatement = "UPDATE lwdom_JobType " +
                "SET JobType=@JobType " +
                "WHERE ID=@ID";

            // SqlCommand
            SqlCommand command = new SqlCommand(sqlStatement, connection);

            try
            {
                // update the database
                connection.Open();

                // use of command.parameters... prevents sql injection
                command.Parameters.AddWithValue("@JobType", jtMod.JobType);
                //
                command.Parameters.AddWithValue("@ID", jtMod.ID); // must be in the order of the sqlstatement

                command.ExecuteNonQuery();
                strMsg = "Record was updated.";
            }
            catch (Exception e)
            {
                strMsg = e.Message.ToString();
                System.Windows.MessageBox.Show(strMsg, "", System.Windows.MessageBoxButton.OK, System.Windows.MessageBoxImage.Error);
            }

            connection.Close();
            return strMsg;
        }
        // ADD
        public string Add_JobType_Rec(lwdom_JobType_Model jtMod)
        {
            // Method: Create new record 
            // update the database
            string strMsg = "";

            // get the connection string
            connectionString = PSWkr.G_SQLDatabaseConnectionString;

            // create connection object
            SqlConnection connection = new SqlConnection(connectionString);

            // building sql command
            string sqlStatement = "INSERT INTO lwdom_JobType (JobType) " +
                "VALUES (@JobType)";

            // SqlCommand
            SqlCommand command = new SqlCommand(sqlStatement, connection);

            try
            {
                connection.Open();
                // Adding parameters for the Insert Command
                command.Parameters.AddWithValue("@JobType", jtMod.JobType);

                command.ExecuteNonQuery();
                strMsg = "Record was added.";
            }
            catch (Exception e)
            {
                strMsg = e.Message.ToString();
            }

            connection.Close();
            return strMsg;
        }