/// <summary>
/// A constructor, creates an object of the
/// BookLenderForm class, and initiates it's instance
/// variables with argument values. It has
/// two parameters. The controls in the GUI is initiated.
/// </summary>
/// <param name="titleText">titleText as a string</param>
/// <param name="savedBookLender">savedBookLender as a BookLender object</param>
public BookLenderForm(string titleText, BookLender savedBookLender)
{
InitializeComponent();
bookLender = savedBookLender;
InitializeGUI(titleText);
// The GUI is filled with data from saved BookLender object
FillSavedDataToGUI(savedBookLender);
}
/// <summary>
/// The method fills all the textboxes in the GUI with data
/// from a saved book lender object.
/// </summary>
/// <param name="savedBookLender">savedBookLender as a BookLender object</param>
private void FillSavedDataToGUI(BookLender savedBookLender)
{
// Is the book lender object not null ?
if (savedBookLender != null)
{
tbx_FirstName.Text = savedBookLender.FirstName;
tbx_LastName.Text = savedBookLender.LastName;
tbx_MobilePhoneNbr.Text = savedBookLender.MyPhone.MobilePhoneNbr;
tbx_HomePhoneNbr.Text = savedBookLender.MyPhone.HomePhoneNbr;
tbx_PrivateEmail.Text = savedBookLender.MyEmail.PersonalEmail;
tbx_WorkEmail.Text = savedBookLender.MyEmail.WorkEmail;
tbx_Street.Text = savedBookLender.MyAddress.Street;
tbx_ZipCode.Text = savedBookLender.MyAddress.ZipCode;
tbx_City.Text = savedBookLender.MyAddress.City;
}
}
/// <summary>
/// This method changes book lender data in the instance variable
/// bookLenderList at a specific index, If it's successful the
/// method returns true, else false.
/// </summary>
/// <param name="index">An interger as index</param>
/// <param name="newBookLender">newBookLender as a BookLender object</param>
/// <returns>A boolean value</returns>
public bool ChangeBookLender(int index, BookLender newBookLender)
{
bool changeOk = false;
// Is object is not null and index within range of list?
if (ValidateIndex(index) && (newBookLender != null))
{
// Deletes old object
bookLenderList[index] = null;
// Assigns changed object at index in list
bookLenderList[index] = newBookLender;
// Change successful
changeOk = true;
}
// Returns true or false
return(changeOk);
}
/// <summary>
/// The method adds a bookLender to the instance variable
/// bookLenderList. If the add is successful method
/// return true, else false.
/// </summary>
/// <param name="bookLender">bookLender as a BookLender object</param>
/// <returns>A boolean value</returns>
public bool AddBookLender(BookLender bookLender)
{
bool addOk = false;
// Is the object not null?
if (bookLender != null)
{
// The book lender gets an ID
bookLender.LenderID = GetNewId;
// The book lender is added to the list
bookLenderList.Add(bookLender);
// The add is successful
addOk = true;
}
// Returns true or false
return(addOk);
}
/// <summary>
/// A constructor, creates an object of the
/// BookLenderForm class, and initiates it's instance
/// variables with argument values. It has
/// one parameter. The controls in the GUI is initiated.
/// </summary>
/// <param name="titleText">titleText as a string</param>
public BookLenderForm(string titleText)
{
InitializeComponent();
bookLender = new BookLender();
InitializeGUI(titleText);
}
