private void textBox9_TextChanged_1(object sender, EventArgs e)
{
String circuBookNo = textBox9.Text;
textBox11.Text = "";
textBox10.Text = "";
label7.Text = "";
label7.ForeColor = Color.Red;
bookBorrowAble = false;
checkBorrowAble();
if (circuBookNo.Length == 10)
{
try
{
CircuBookClass book = BookInfo.queryABookInfo(circuBookNo);
textBox11.Text = book.BookName;
textBox10.Text = book.PublishingHouse;
}
catch (System.ArgumentOutOfRangeException)
{
label7.Text = "图书标识号有误！";
return;
}
if (!AS.BookBorrowAble(textBox9.Text))
{
label7.Text = "书籍已被借出！";
}
else
{
label7.ForeColor = Color.Green;
label7.Text = "该书籍可借阅";
bookBorrowAble = true;
checkBorrowAble();
}
}
}