private void cmdAddRecipe_Click(object sender, EventArgs e) { if (txtHeadline.Text == "" || cboRecipeType == null || txtIngredients.Text == "" || txtInstructions.Text == "") { MessageBox.Show("Du har inte fyllt i all information om receptet."); } else { string headLine = txtHeadline.Text; RecipeType recipeType = new RecipeType(cboRecipeType.SelectedItem.ToString()); string[] ingredientArray = txtIngredients.Lines; string[] instructionsArray = txtInstructions.Lines; List <string> ingredients = ingredientArray.ToList(); List <string> instructions = instructionsArray.ToList(); Recipe recipe = new Recipe(txtHeadline.Text, ingredients, instructions, recipeType); FileHandler.AddRecipe(recipe); } }