protected void Page_Load(object sender, EventArgs e)
{
if (Request.QueryString["id"] != null)
{
int bookid = int.Parse(Request.QueryString["id"]);
dlBooks.DataSource = Book.GetBookByID(bookid);
dlBooks.DataBind();
DataTable dr = BookReview.GetReviewsByBook(bookid);
if (dr.Rows.Count > 0)
{
dlReviews.DataSource = BookReview.GetReviewsByBook(bookid);
dlReviews.DataBind();
}
else
{
lblExceptionMessage.Text = "There are no reviews for this book";
}
}
else
{
Response.Redirect("SearchBook.aspx");
}
}
protected void Page_Load(object sender, EventArgs e)
{
if (Request.QueryString["id"] != null)
{
//Read query string
int id = int.Parse(Request.QueryString["id"]);
//Calls GetAllBooks method which returns selected book ID, and store it in a DataTable datatype.
DataTable dataTableBooks = Book.GetBookByID(id);
//Set the data source to the DataTable, and then bind (apply) it.
dlBooks.DataSource = dataTableBooks;
dlBooks.DataBind();
//Gets the reviews
DataTable dataTableReviews = BookReview.GetReviewsByBook(id);
dlReviews.DataSource = dataTableReviews;
dlReviews.DataBind();
}
else
{
Response.Redirect("SearchBook.aspx");
}
}
protected void btnSubmit_Click(object sender, EventArgs e)
{
try
{
if (Rating2.CurrentRating == 0)
{
lblExceptionMessage.Text = "You must enter a rating";
}
else
{
lblExceptionMessage.Text = "";
//Get the book id from the query string
int bookid = int.Parse(Request.QueryString["id"]);
//Create a new object of type BookReview and set its value
BookReview review = new BookReview();
review.BookID = bookid; // querystring value
review.UserName = "******"; //this will be changed later to the logged in user
review.Rating = Rating2.CurrentRating; //value from the ajax control
//comment is not required
if (String.IsNullOrEmpty(txtComment.Text))
{
review.Comment = "No comment";
}
else
{
review.Comment = txtComment.Text;
}
//Call the AddReview method
review.AddReview();
//Refresh both the datalist to show the latest votes and latest reviews
dlBooks.DataSource = Book.GetBookByID(bookid);
dlBooks.DataBind();
dlReviews.DataSource = BookReview.GetReviewsByBook(bookid);
dlReviews.DataBind();
//Clear the inputs
txtComment.Text = "";
Rating2.CurrentRating = 0;
}
}
catch (Exception error)
{
lblExceptionMessage.Text = "An error has occured! <br>" + error.Message;
}
}
