protected void LinkButtonCreateOrEdit_Click(object sender, EventArgs e)
{
Category category;
int categoryId = 0;
BookLibraryEntities db = new BookLibraryEntities();
if(!String.IsNullOrEmpty(this.LabelCategoryId.Text))
{
categoryId = Convert.ToInt32(this.LabelCategoryId.Text);
category = db.Categories.FirstOrDefault(c => c.Id == categoryId);
}
else
{
category = new Category();
db.Categories.Add(category);
}
string categoryName = this.TextBoxCreateOrEdit.Text;
try
{
if(String.IsNullOrEmpty(categoryName))
{
throw new ArgumentException("Category name is required!");
}
category.Name = categoryName;
db.SaveChanges();
ErrorSuccessNotifier.AddInfoMessage("Category " + (categoryId == 0 ? "created!" : "edited!"));
ErrorSuccessNotifier.ShowAfterRedirect = true;
Response.Redirect("EditCategories.aspx", false);
}
catch(Exception ex)
{
ErrorSuccessNotifier.AddErrorMessage(ex);
}
}
protected void Page_Load(object sender, EventArgs e)
{
string text = Request.Params["q"];
this.HeaderSearchPage.InnerText = String.Format("Search Results for Query \"{0}\":", text);
BookLibraryEntities db = new BookLibraryEntities();
var books = db.Books.Where(b => b.Title.Contains(text));
this.RepeaterBooks.DataSource = books.ToList();
this.RepeaterBooks.DataBind();
}
protected void LinkButtonCreateNewBook_Click(object sender, EventArgs e)
{
BookLibraryEntities db = new BookLibraryEntities();
this.TitleCreateOrEdit.InnerText = "Create New Book";
this.LinkButtonCreateOrEdit.Text = "Create";
this.TextBoxTitle.Text = "";
this.TextBoxAuthors.Text = "";
this.TextBoxISBN.Text = "";
this.TextBoxWebsite.Text = "";
this.TextBoxDescription.Text = "";
this.DropDownListCategories.DataSource = db.Categories.ToList();
this.PanelCreateOrEdit.Visible = true;
}
protected void Page_Load(object sender, EventArgs e)
{
int bookId = Convert.ToInt32(Request.Params["id"]);
if (bookId > 0)
{
BookLibraryEntities db = new BookLibraryEntities();
var currentBook = db.Books.Where(b => b.Id == bookId).ToList(); ;
this.FormViewBook.DataSource = currentBook;
this.DataBind();
//this.LiteralTitle.Text = currentBook.Title;
//this.LiteralAuthor.Text = currentBook.Author;
//this.HyperLinkWebsite.Text = currentBook.Website;
//this.LiteralDescription.Text = currentBook.Description;
}
}
// The id parameter name should match the DataKeyNames value set on the control
public void GridViewCategories_DeleteItem(int id)
{
BookLibraryEntities db = new BookLibraryEntities();
Book book = db.Books.FirstOrDefault(c => c.Id == id);
try
{
db.Books.Remove(book);
db.SaveChanges();
this.GridViewBooks.PageIndex = 0;
ErrorSuccessNotifier.AddInfoMessage("Book successfully deleted!");
}
catch(Exception ex)
{
ErrorSuccessNotifier.AddErrorMessage(ex);
}
}
protected void LinkButtonCreateOrEdit_Click(object sender, EventArgs e)
{
Book book;
int bookId= 0;
BookLibraryEntities db = new BookLibraryEntities();
if (!String.IsNullOrEmpty(this.LabelBookId.Text))
{
bookId = Convert.ToInt32(this.LabelBookId.Text);
book = db.Books.FirstOrDefault(c => c.Id == bookId);
}
else
{
book = new Book();
db.Books.Add(book);
}
try
{
if(String.IsNullOrEmpty(this.TextBoxTitle.Text))
{
throw new ArgumentException("Title must be filled!");
}
if (String.IsNullOrEmpty(this.TextBoxAuthors.Text))
{
throw new ArgumentException("Author must be filled!");
}
book.Title = this.TextBoxTitle.Text;
book.Author = this.TextBoxAuthors.Text;
book.ISBN = this.TextBoxISBN.Text;
book.Website = this.TextBoxWebsite.Text;
book.Description = this.TextBoxDescription.Text;
book.CategoryId = Convert.ToInt32(this.DropDownListCategories.SelectedItem.Value);
db.SaveChanges();
ErrorSuccessNotifier.AddInfoMessage("Book successfully " + (bookId == 0 ? "created!" : "edited!"));
ErrorSuccessNotifier.ShowAfterRedirect = true;
Response.Redirect("EditBooks.aspx", false);
}
catch (Exception ex)
{
ErrorSuccessNotifier.AddErrorMessage(ex);
}
}
// The return type can be changed to IEnumerable, however to support
// paging and sorting, the following parameters must be added:
// int maximumRows
// int startRowIndex
// out int totalRowCount
// string sortByExpression
public IQueryable<BookLibrary.Models.Book> GridViewCategories_GetData()
{
BookLibraryEntities db = new BookLibraryEntities();
return db.Books;
}
protected void LinkButtonEditCategory_Command(object sender, CommandEventArgs e)
{
int bookId = Convert.ToInt32(e.CommandArgument);
BookLibraryEntities db = new BookLibraryEntities();
Book book = db.Books.FirstOrDefault(b => b.Id == bookId);
if (book != null)
{
this.LabelBookId.Text = bookId.ToString();
this.TitleCreateOrEdit.InnerText = "Edit Book";
this.TextBoxTitle.Text = book.Title;
this.TextBoxAuthors.Text = book.Author;
this.TextBoxISBN.Text = book.ISBN;
this.TextBoxWebsite.Text = book.Website;
this.TextBoxDescription.Text = book.Description;
this.DropDownListCategories.DataSource = db.Categories.ToList();
this.LinkButtonCreateOrEdit.Text = "Save";
this.PanelCreateOrEdit.Visible = true;
}
}
protected void LinkButtonEditCategory_Command(object sender, CommandEventArgs e)
{
int categoryId = Convert.ToInt32(e.CommandArgument);
BookLibraryEntities db = new BookLibraryEntities();
Category category = db.Categories.FirstOrDefault(c => c.Id == categoryId);
if (category != null)
{
this.LabelCategoryId.Text = categoryId.ToString();
this.TitleCreateOrEdit.InnerText = "Edit Category";
this.TextBoxCreateOrEdit.Text = category.Name;
this.LinkButtonCreateOrEdit.Text = "Save";
this.PanelCreateOrEdit.Visible = true;
}
}
// The return type can be changed to IEnumerable, however to support
// paging and sorting, the following parameters must be added:
// int maximumRows
// int startRowIndex
// out int totalRowCount
// string sortByExpression
public IQueryable<BookLibrary.Models.Category> ListViewCategories_GetData()
{
BookLibraryEntities db = new BookLibraryEntities();
return db.Categories;
}
