private void btnDelete_Click(object sender, RoutedEventArgs e)
        {
            if (txtConfirm.Text == "Eyða" || txtConfirm.Text == "eyða")
            {
                FoodProjectDataSetTableAdapters.RecipeTableAdapter            rta  = new FoodProjectDataSetTableAdapters.RecipeTableAdapter();
                FoodProjectDataSetTableAdapters.Recipe_CuisineTableAdapter    rcta = new FoodProjectDataSetTableAdapters.Recipe_CuisineTableAdapter();
                FoodProjectDataSetTableAdapters.Recipe_IngredientTableAdapter rita = new FoodProjectDataSetTableAdapters.Recipe_IngredientTableAdapter();

                int rid = (int)App.Current.Properties["rid"];


                rcta.ClearByRecipe(rid);
                rita.ClearByRecipe(rid);
                rta.DeleteRecipe(rid);

                bool isDeleted = true;
                App.Current.Properties["isDeleted"] = isDeleted;

                this.Close();
            }
            else
            {
                txtConfirm.Text = "";
            }
        }
        private void btnAddIngredient_Click(object sender, RoutedEventArgs e)
        {
            try
            {
                WpfApplication1.FoodProjectDataSetTableAdapters.IngredientTableAdapter        ita  = new WpfApplication1.FoodProjectDataSetTableAdapters.IngredientTableAdapter();
                WpfApplication1.FoodProjectDataSetTableAdapters.Recipe_IngredientTableAdapter rita = new FoodProjectDataSetTableAdapters.Recipe_IngredientTableAdapter();
                WpfApplication1.FoodProjectDataSetTableAdapters.MeasureTableAdapter           mta  = new FoodProjectDataSetTableAdapters.MeasureTableAdapter();



                // Skilgreini DataRowView til þess að geta náð í measureID úr comboboxi
                DataRowView dv = (DataRowView)cbMeasure.SelectedItem;

                if (dv != null)
                {
                    // Næ í iid, rid og mid fyrir Recipe_Ingredient Insert Query
                    int iid = (int)ita.GetIidByName(txtIngredient.Text);
                    int rid = (int)App.Current.Properties["rid"];
                    int mid = (int)dv["mid"];

                    rita.Insert(rid, iid, double.Parse(txtQuantity.Text), mid);

                    UpdateDataGrid();

                    try
                    {
                        string root = AppDomain.CurrentDomain.BaseDirectory;

                        // Bý til myndina
                        BitmapImage imgC = new BitmapImage();
                        imgC.BeginInit();
                        imgC.UriSource        = new Uri(root + @"\check20w.png");
                        imgC.DecodePixelWidth = 20;
                        imgC.EndInit();

                        // Set myndina inn í rétt image í xamlinu og bæti texta í label
                        imgCheck.Source  = imgC;
                        lblCheck.Content = "Hráefni hefur verið bætt við uppskrift.";

                        // Kalla á timer sem núllstillir image og label
                        TimerTest();
                    }
                    catch (FileNotFoundException)
                    {
                    }
                }
                else
                {
                    MessageBox.Show("Vinsamlegast veljið Mælieiningu.");
                }
            }
            catch (NullReferenceException)
            {
                MessageBox.Show("Vinsamlegast veljið hráefni.");
            }
            catch (InvalidOperationException)
            {
                MessageBox.Show("Vinsamlegast veljið hráefni.");
            }
            catch (FormatException)
            {
                MessageBox.Show("Vinamlegast sláið inn magn.");
            }
            catch (Exception) // Á að vera SQLException en það virkar ekki.
            {
                MessageBox.Show("Villa kom upp. Ekki tókst að skrá hráefni");
            }
        }
        private void RemoveIngredient_Click(object sender, RoutedEventArgs e)
        {
            try
            {
                WpfApplication1.FoodProjectDataSetTableAdapters.IngredientTableAdapter        ita  = new WpfApplication1.FoodProjectDataSetTableAdapters.IngredientTableAdapter();
                WpfApplication1.FoodProjectDataSetTableAdapters.Recipe_IngredientTableAdapter rita = new FoodProjectDataSetTableAdapters.Recipe_IngredientTableAdapter();

                DataRowView dv = (DataRowView)mainRecipeDetailsDataGrid.SelectedItem;

                if (dv != null)
                {
                    int rid = (int)dv["rid"];
                    int iid = (int)ita.GetIidByName(dv["Ingredients"].ToString());

                    rita.RemoveIngredient(rid, iid);

                    UpdateDataGrid();
                    MessageBox.Show("Hráefni fjarlægt úr uppskrift!");
                }
            }
            catch (Exception)
            {
            }
        }