protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
// Get the index of the book to update
index = Convert.ToInt32(Request.QueryString["bookId"]);
// Get the record and save it in viewstate
bookToUpdate = BBooks.getById(index);
ViewState["bookToUpdate"] = bookToUpdate;
// Load Section dropDownList
ddlSection.DataSource = BSection.getAll();
ddlSection.DataTextField = "Name";
ddlSection.DataValueField = "SectionId";
ddlSection.DataBind();
// Fill the textBoxes
boxTitle.Text = bookToUpdate.Title;
boxAuthor.Text = bookToUpdate.Author;
ddlSection.SelectedValue = bookToUpdate.SectionId.ToString();
boxIbsn.Enabled = false;
boxIbsn.Text = bookToUpdate.Ibsn.ToString();
}
}
protected void boxIbsn_TextChanged(object sender, EventArgs e)
{
// Enable Fields
boxTitle.Enabled = true;
//boxTitle.Text = "";
boxAuthor.Enabled = true;
//boxAuthor.Text = "";
ddlSection.Enabled = true;
// Validate text field
literalIbsn.Text = "";
int value;
if (!int.TryParse(boxIbsn.Text, out value))
{
literalIbsn.Text = writeDigitsLabel();
}
// If textBox contains data and is a number it does the logic
if (!string.IsNullOrEmpty(boxIbsn.Text) && int.TryParse(boxIbsn.Text, out value))
{
int ibsnToCheck = Convert.ToInt32(boxIbsn.Text);
int bookId = BBooks.ibsnExist(ibsnToCheck);
// If ibsn exist, some controls are filled and ibsn is blocked
if (bookId > 0)
{
// Get the book record
Books book = new Books();
book = BBooks.getById(bookId);
// Book: Fill fields and diable them
boxTitle.Enabled = false;
boxTitle.Text = book.Title;
boxAuthor.Enabled = false;
boxAuthor.Text = book.Author;
ddlSection.Enabled = false;
ddlSection.SelectedValue = book.SectionId.ToString();
}
}
}