// 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);
}
}
// 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);
}
}
// 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}'");
}
}
