protected void yesBookButton_Click(object sender, EventArgs e)
{
var bookId = Convert.ToInt32(Session["bookId"]);
Session["bookId"] = null;
LibrarySystemEntities context = new LibrarySystemEntities();
Book book = context.Books.Find(bookId);
try
{
context.Books.Remove(book);
context.SaveChanges();
this.booksGrid.PageIndex = 0;
this.deleteBookPanel.Visible = false;
this.newBookButton.Visible = true;
ErrorSuccessNotifier.AddSuccessMessage("Book was successfully deleted.");
}
catch (Exception ex)
{
ErrorSuccessNotifier.AddErrorMessage(ex);
}
}
protected void saveNewBookButton_Click(object sender, EventArgs e)
{
try
{
var title = this.newTitleBox.Text;
var author = this.newAuthorBox.Text;
if (string.IsNullOrWhiteSpace(title) || string.IsNullOrWhiteSpace(author))
{
throw new ArgumentNullException(
"The title or the author of a book could not be null or white space");
}
var isbn = this.newISBNBox.Text;
var website = this.newWebSiteBox.Text;
var pattern = @"^(https?|ftp|file)://.+$";
if (!Regex.IsMatch(website, pattern))
{
throw new ArgumentOutOfRangeException(
"The book web site url is not valid");
}
var description = this.newDescriptionBox.Text;
var categoryId = Convert.ToInt32(Session["categoryId"]);
Session["categoryId"] = null;
LibrarySystemEntities context = new LibrarySystemEntities();
Book book = new Book()
{
Title = title,
Author = author,
ISBN = isbn,
WebSite = website,
Discription = description
};
Category category = context.Categories.Find(categoryId);
category.Books.Add(book);
context.SaveChanges();
this.booksGrid.PageIndex = 0;
this.newBookPanel.Visible = false;
this.newBookButton.Visible = true;
ErrorSuccessNotifier.AddSuccessMessage("Book was successfully added.");
}
catch (Exception ex)
{
ErrorSuccessNotifier.AddErrorMessage(ex);
}
}
protected void yesCategoryButton_Click(object sender, EventArgs e)
{
try
{
var categoryId = Convert.ToInt32(Session["categoryId"]);
Session["categoryId"] = null;
LibrarySystemEntities context = new LibrarySystemEntities();
Category category = context.Categories.Find(categoryId);
context.Books.RemoveRange(category.Books);
context.Categories.Remove(category);
context.SaveChanges();
this.categoriesGrid.PageIndex = 0;
this.deleteCategoryPanel.Visible = false;
this.newCategoryButton.Visible = true;
ErrorSuccessNotifier.AddSuccessMessage("Category was successfully deleted.");
}
catch (Exception ex)
{
ErrorSuccessNotifier.AddErrorMessage(ex);
}
}
protected void saveCategoryButton_Click(object sender, EventArgs e)
{
try
{
var name = this.editCategoryBox.Text;
if (string.IsNullOrWhiteSpace(name))
{
throw new ArgumentNullException(
"The name of a category could not be null or white space");
}
var categoryId = Convert.ToInt32(Session["categoryId"]);
Session["categoryId"] = null;
LibrarySystemEntities context = new LibrarySystemEntities();
Category category = context.Categories.Find(categoryId);
category.Name = name;
context.SaveChanges();
this.categoriesGrid.PageIndex = 0;
this.editCategoryPanel.Visible = false;
this.newCategoryButton.Visible = true;
ErrorSuccessNotifier.AddSuccessMessage("Category was successfully edeted.");
}
catch (Exception ex)
{
ErrorSuccessNotifier.AddErrorMessage(ex);
}
}
protected void saveNewCategoryButton_Click(object sender, EventArgs e)
{
try
{
var name = this.newCategoryBox.Text;
if (string.IsNullOrWhiteSpace(name))
{
throw new ArgumentNullException(
"The name of a category could not be null or white space");
}
LibrarySystemEntities context = new LibrarySystemEntities();
Category category = new Category
{
Name = name
};
context.Categories.Add(category);
context.SaveChanges();
this.categoriesGrid.PageIndex = 0;
this.newCategoryPanel.Visible = false;
this.newCategoryButton.Visible = true;
ErrorSuccessNotifier.AddSuccessMessage("Category was successfully added.");
}
catch (Exception ex)
{
ErrorSuccessNotifier.AddErrorMessage(ex);
}
}
