using System;

using System.Windows.Forms;

​

namespace Bestandsplanung

{

    public partial class AddHardware : Form

    {

        public BestandDBEntities db = new BestandDBEntities();

        public AddHardware()

        {

            InitializeComponent();

        }

        /*

         * 

         *   |   Create device object   |

         *   V                          V

         */

        private void Btn_SubmitValues_Click(object sender, EventArgs e)

        {

            SubmitEnteredValuesToDatabase(InsertDataToObject(GetModelName(), GetSerialnumber(), GetType()));

        }

        public void SubmitEnteredValuesToDatabase(Devices newHardware)

        {

            try

            {

                db.Devices.Add(newHardware);

            }

            catch(Exception ex)

            {

                MessageBox.Show(ex.ToString());

            }

            finally

            {

                db.SaveChanges();

            }

        }

        public string GetModelName()

        {

            string modelName = tb_EnterModelName.Text.ToString();

​

            if (String.IsNullOrEmpty(modelName))

            {

                //Error - wrong or empty input

                return null;

            }

            else

            {

                return modelName;

            }

        }

        public string GetSerialnumber()

        {

            string serialnumber = tb_EnterSerialnumber.Text.ToString();

​

            if (String.IsNullOrEmpty(serialnumber))

            {

                //Error - wrong or empty input

                return null;

            }

            else

            {

                return serialnumber;

            }

        }

        public int GetType()

        {

            int type = cb_SelectTyp.Text == "Laptop" ? 1 : (cb_SelectTyp.Text == "Handy" ? 2 : 3);

​

            return type;

        }

        public Devices InsertDataToObject(string modelName, string serialnumber, int type)

        {

            var newHardware = new Devices

            {

                Modelname = modelName,

                Serialnumber = serialnumber,

                HardwareTypes_Id = type

            };

            return newHardware;

        }

    }

}

​