private void button1_Click(object sender, RoutedEventArgs e)
 {
     try
     {
         if (TBFName.Text == "")
         {
             lbDisplay.Content = "First name box is eympty please enter correct info";
         }
         else if (TBLName.Text == "")
         {
             lbDisplay.Content = "Last name box is eympty please enter correct info";
         }
         else if (TBMID.Text == "")
         {
             lbDisplay.Content = "Major ID box is eympty please enter correct info";
         }
         else if (TBEmail.Text == "")
         {
             lbDisplay.Content = "E-mail box is eympty please enter correct info";
         }
         else if (TBAddress.Text == "")
         {
             lbDisplay.Content = "Address box is eympty please enter correct info";
         }
         else if (TBPhone.Text == "")
         {
             lbDisplay.Content = "Phone number box is eympty please enter correct info";
         }
         else
         {
             lbDisplay.Content = "";
             MessageBox.Show("E-Mail has been sent to the board to be checked over.");
             TBFName.Clear();
             TBLName.Clear();
             TBMID.Clear();
             TBEmail.Clear();
             TBAddress.Clear();
             TBPhone.Clear();
         }
     }
     catch
     {
     }
 }
 private void TBPhone_Click(object sender, EventArgs e)
 {
     TBPhone.Clear();
 }
        private void BTRegister_Click(object sender, EventArgs e)
        {
            SQLiteConnection con   = new SQLiteConnection(@"data source = C:\Users\Kutay\Desktop\RepairShop.db");
            string           query = @"insert into Employee (Name,Surname,Email,Password,Phone) values(@Name,@Surname,@Email,@Password,@Phone)";
            SQLiteCommand    cmd   = new SQLiteCommand(query, con);

            if ((TBName.Text.Trim() != "" && TBName.Text.Trim() != "Ad") &&
                (TBSurname.Text.Trim() != "" && TBSurname.Text.Trim() != "Soyad") &&
                (TBMail.Text.Trim() != "" && TBMail.Text.Trim() != "Mail") &&
                (TBPassword.Text.Trim() != "" && TBPassword.Text.Trim() != "Password") &&
                (TBPhone.Text.Trim() != "" && TBPhone.Text.Trim() != "Telefon") &&
                (TBConfirm.Text.Trim() != "" && TBConfirm.Text.Trim() != "Confirmation Code"))
            {
                SQLiteCommand cm = new SQLiteCommand("Select Conf from Confirmation", con);
                con.Open();
                SQLiteDataReader dr = cm.ExecuteReader();
                int i = 0;
                while (dr.Read())
                {
                    a = dr.GetString(0);
                    ConfCode.Add(a);
                }
                dr.Close();
                con.Close();
                if (!ConfCode.ToArray().Contains <string>(TBConfirm.Text.Trim()))
                {
                    lblMsg.ForeColor = Color.DarkRed;
                    lblMsg.Text      = "Wrong Conf. Code";
                }
                else
                {
                    cmd.Parameters.Add(new SQLiteParameter("@Name", TBName.Text.Trim()));
                    cmd.Parameters.Add(new SQLiteParameter("@Surname", TBSurname.Text.Trim()));
                    cmd.Parameters.Add(new SQLiteParameter("@Email", TBMail.Text.Trim()));
                    cmd.Parameters.Add(new SQLiteParameter("@Password", TBPassword.Text.Trim()));
                    cmd.Parameters.Add(new SQLiteParameter("@Phone", TBPhone.Text.Trim()));
                    con.Open();
                    cmd.ExecuteNonQuery();
                    TBName.Clear(); TBSurname.Clear(); TBMail.Clear(); TBPassword.Clear(); TBPhone.Clear();
                    lblMsg.ForeColor = Color.DarkGreen;
                    lblMsg.Text      = "Succesfull Registration";
                }
            }

            else
            {
                lblMsg.ForeColor = Color.DarkRed;
                lblMsg.Text      = "Please fill all areas.";
            }
        }