Exemple #1
0
        // Function that modify article price
        public void ModifyPrice(FileArticle article, double newPrice)
        {
            List <FileArticle> articles = GetAllFileArticles();

            for (int i = 0; i < articles.Count; i++)
            {
                if (articles.ElementAt(i).Name == article.Name)
                {
                    articles.ElementAt(i).Price = newPrice;
                }
            }
            File.Delete(fileArticles);
            foreach (var item in articles)
            {
                AddArticleToFile(item);
            }
        }
Exemple #2
0
        // Function that read all articles from Articles.txt file
        public List <FileArticle> GetAllFileArticles()
        {
            List <FileArticle> listOfArticles = new List <FileArticle>();

            if (!File.Exists(fileArticles))
            {
                File.Create(fileArticles).Close();
            }

            try
            {
                using (StreamReader sr = File.OpenText(fileArticles))
                {
                    string line = "";
                    while ((line = sr.ReadLine()) != null)
                    {
                        char        delimiter  = ';';
                        string[]    data       = line.Split(delimiter);
                        FileArticle newArticle = new FileArticle
                        {
                            Name     = data[0],
                            Quantity = Convert.ToInt32(data[1]),
                            Price    = Convert.ToDouble(data[2])
                        };
                        listOfArticles.Add(newArticle);
                    }
                }
                return(listOfArticles);
            }
            catch (FileNotFoundException e)
            {
                Debug.WriteLine($"The file was not found: '{e}'");
                return(null);
            }
            catch (IOException e)
            {
                Debug.WriteLine($"The file could not be opened: '{e}'");
                return(null);
            }
        }
Exemple #3
0
 // Function that add one article to Articles.txt file
 public void AddArticleToFile(FileArticle article)
 {
     if (!File.Exists(fileArticles))
     {
         File.Create(fileArticles).Close();
     }
     try
     {
         using (StreamWriter sw = File.AppendText(fileArticles))
         {
             sw.WriteLine(article.ToString());
         }
     }
     catch (FileNotFoundException e)
     {
         Debug.WriteLine($"The file was not found: '{e}'");
     }
     catch (IOException e)
     {
         Debug.WriteLine($"The file could not be opened: '{e}'");
     }
 }