protected void EditOrCreateCategotyButton_Click(object sender, EventArgs e)
{
var dbContext = new BooksReviewContext();
string categoryName = this.EditOrCreateCategotyTextBox.Text;
Button button = sender as Button;
if (button.CommandName == "edit")
{
int id = Convert.ToInt32(button.CommandArgument);
var category = dbContext.Categories.Find(id);
category.Name = categoryName;
}
else if (button.CommandName == "delete")
{
int id = Convert.ToInt32(button.CommandArgument);
var category = dbContext.Categories.Find(id);
var books = category.Books.ToList();
dbContext.Books.RemoveRange(books);
dbContext.Categories.Remove(category);
}
else
{
var category = new Category {
Name = categoryName
};
dbContext.Categories.Add(category);
}
try
{
dbContext.SaveChanges();
}
catch (Exception ex)
{
this.ErrorLabel.Text = ex.Message;
}
this.GridViewCategories.DataBind();
this.EditOrCreateCategotyPanel.Visible = false;
}
protected void EditOrCreateBook_Click(object sender, EventArgs e)
{
var dbContext = new BooksReviewContext();
Button button = sender as Button;
if (button.CommandName == "edit")
{
int id = Convert.ToInt32(button.CommandArgument);
var book = dbContext.Books.Find(id);
book.Title = this.TitleTextBox.Text = book.Title;
book.Author = this.AuthorTextBox.Text;
book.ISBN = this.ISBNTextBox.Text;
book.SiteURL = this.UrlTextBox.Text;
book.Description = this.DescrTextBox.Text;
book.CategoryId = Convert.ToInt32(this.CategoryDropDownList.SelectedValue);
}
else if (button.CommandName == "delete")
{
int id = Convert.ToInt32(button.CommandArgument);
var book = dbContext.Books.Find(id);
dbContext.Books.Remove(book);
}
else
{
var book = new Book();
book.Title = this.TitleTextBox.Text;
book.Author = this.AuthorTextBox.Text;
book.ISBN = this.ISBNTextBox.Text;
book.SiteURL = this.UrlTextBox.Text;
book.Description = this.DescrTextBox.Text;
book.CategoryId = Convert.ToInt32(this.CategoryDropDownList.SelectedValue);
dbContext.Books.Add(book);
}
dbContext.SaveChanges();
this.GridViewBooks.DataBind();
this.BookPanel.Visible = false;
}
