private void btnBookDelete_Click(object sender, EventArgs e)
{
SetTextToBook();
if (book.bkStatus == "借出")
{
labAddInformation.Text = "添加状态：该书以借出，暂时无法删除！";
}
else
{
bookBLL.Delete(book);
labAddInformation.Text = "添加状态：已删除！";
}
}
private void 除图书_4_Click(object sender, EventArgs e)
{
if (SetTextToBook())
{
dt = BookAdmin.GetBook();
for (int i = 0; i < dt.Rows.Count; i++)
{
if (dt.Rows[i][7].ToString() == "借出" && dt.Rows[i][1].ToString() == tb4_3.Text)
{
MessageBox.Show("该书未被归还");
return;
}
}
bookBLL.Delete(new_book);
MessageBox.Show("状态：删除成功！");
}
BookCatalogUpdate(treeView2);
Clear_4();
}
private void 除图书_4_Click(object sender, EventArgs e)
{
if (SetTextToBook())
{
dt = BorrowAdmin.GetBorrow();
for (int i = 0; i < dt.Rows.Count; i++)
{
if (dt.Rows[i][7].ToString() == "False" && dt.Rows[i][4].ToString() == new_book.Name)
{
MessageBox.Show("该书未被归还");
return;
}
}
new_borrow.BID = new_book.ID;
new_borrow.BName = "";
new_borrow.UName = "";
borrowBLL.DeleteBook(new_borrow);
bookBLL.Delete(new_book);
MessageBox.Show("状态：删除成功！");
}
BookCatalogUpdate(treeView2);
Clear_4();
}
