public void Delete_Book_from_List(int book_id, bool delete_picture)
{
book_node iterator = root;
if (root == null)
{
return;
}
if (root.book.Book_id == book_id)
{
root.book.Delete();
if (delete_picture == true)
{
Picture_Events.Delete_The_Picture(root.book.Cover_path_file);
}
root.book = null;
root = root.next;
return;
}
while (iterator.next.book.Book_id != book_id)
{
iterator = iterator.next;
if (iterator.next == null)
{
MessageBox.Show("CANT FOUND");
return;
}
}
iterator.next.book.Delete();
if (delete_picture == true)
{
Picture_Events.Delete_The_Picture(iterator.next.book.Cover_path_file);
}
iterator.next.book = null;
iterator.next = iterator.next.next;
return;
}
private void Add_Click_Func(bool is_edit)
{
description = tb_description.Text.Replace('\'', ' ');
name = (tb_name.Text.Trim()).Replace('\'', ' ');
author = cb_author.SelectedItem.ToString();
publisher = cb_publisher.SelectedItem.ToString();
category = cb_category.SelectedItem.ToString();
shelf = cb_shelf.SelectedItem.ToString();
count = (int)numUpDown_count.Value;
date = DateTime.Now.ToString();
pic_new_source_path = picture_event.Pic_source_file;
lbl_message.Text = "";
// Validations
if (tb_name.Text.Trim() == "Book's Name" || tb_name.Text.Trim() == "")
{
lbl_message.Text = "* Please enter book's name.";
lbl_message.ForeColor = Color.Red;
tb_name.Focus();
return;
}
if (cb_author.SelectedIndex == 0)
{
lbl_message.Text = "* Please choose an author.";
lbl_message.ForeColor = Color.Red;
cb_author.Focus();
return;
}
if (cb_publisher.SelectedIndex == 0)
{
lbl_message.Text = "* Please choose a publisher.";
lbl_message.ForeColor = Color.Red;
cb_publisher.Focus();
return;
}
if (cb_category.SelectedIndex == 0)
{
lbl_message.Text = "* Please choose a category.";
lbl_message.ForeColor = Color.Red;
cb_category.Focus();
return;
}
if (tb_description.Text == "Description..." || tb_description.Text == "")
{
lbl_message.Text = "* Please enter description.";
lbl_message.ForeColor = Color.Red;
tb_description.Focus();
return;
}
if (cb_shelf.SelectedIndex == 0)
{
lbl_message.Text = "* Please choose a shelf.";
lbl_message.ForeColor = Color.Red;
cb_shelf.Focus();
return;
}
if (pic_new_source_path == null || pic_new_source_path == pic_default_file)
{
lbl_message.Text = "* Please choose a picture.";
lbl_message.ForeColor = Color.Red;
tb_description.Focus();
picture_event.Choose_Image();
return;
}
Join_Tables();
if (is_edit == false)
{
picture_event.Copy_The_Picture(name);
pic_new_source_path = picture_event.Pic_source_file;
Book book = new Book(0, author_id, publisher_id, category_id, main_page.Manager.Employee_id, shelf_id, name, count, date, description, pic_new_source_path, 0, 0);
book.Add();
Clear();
}
else
{
if (change_image)
{
Picture_Events.Delete_The_Picture(book_to_edit.Cover_path_file);
picture_event.Copy_The_Picture(name);
main_page.Remove_Image_From_Cover_List(book_to_edit.Book_id);
book_to_edit.Cover_path_file = picture_event.Pic_source_file;
book_to_edit.Cover_Pic_to_Image_List();
change_image = false;
}
lbl_message.Text = "*Book changed successfully";
lbl_message.ForeColor = Color.LightGreen;
book_to_edit.Author_id = author_id;
book_to_edit.Publisher_id = publisher_id;
book_to_edit.Category_id = category_id;
book_to_edit.Shelf_id = shelf_id;
book_to_edit.Count = count;
book_to_edit.Name = name;
book_to_edit.Description = description;
book_to_edit.Edit();
main_page.Pnl_book_list.VerticalScroll.Value = 0;
main_page.Book_search_list.Delete_All_List();
main_page.Main_book_list.Draw_All_Books();
main_page.Book_searched_already = false;
main_page.Main_shelf_list.Delete_All_List();
Shelf.Show_All_Shelf(main_page);
}
}