private void button6_Click_run()
{
if_get_bookid = 0;
if_can_borrow = true;
do_huanshu = false; //是否执行还书按钮
//int people = 1; //有该借阅证号的人数
int text8moder = 0; //textBox8显示的内容
textBox1.Text = get_number_llm.borrow_cardnum; //获得节约证号
textBox2.Text = "";
textBox3.Text = "";
try
{
int booknum = 0; //借书的数量
open_mysql_llm.conn.Open();
String cardnum = textBox1.Text.Trim();
// String ID = "";
//String last_data = "";
DataSet dslibrary = new DataSet();
String str1 = "图书ID 借阅证号 借阅日期 图书名" + "\r\n\r\n";
String str2 = "您有书逾期没还，不能够借书。信息如下：\r\n\r\n"; //不能借书，以及未归还书籍信息
str2 = str2 + "书名 " + "还书日期 " + "当前日期" + "\r\n\r\n";
System.DateTime now = new System.DateTime(); //获取系统时间
now = System.DateTime.Now;
String strmy_recorder = "Select * From recorder Where CardNum = '" + cardnum + "'";
MySqlDataAdapter darecorder = new MySqlDataAdapter(strmy_recorder, open_mysql_llm.conn);
MySqlCommandBuilder bdrecorder = new MySqlCommandBuilder(darecorder);
darecorder.Fill(dslibrary, "recorder");
foreach (DataRow row1 in dslibrary.Tables["recorder"].Rows)
{
text8moder = 1;
//textBox8.Text = "无借阅信息！";
str1 = str1 + row1["BookID"].ToString() + " " + row1["CardNum"].ToString() + " " +
row1["BorrowDate"].ToString() + " " + row1["BookName"].ToString() + "\r\n\r\n";
booknum += 1; //借的书的数量
System.DateTime borrowdate = Convert.ToDateTime(row1["BorrowDate"]); //获取借阅时间
borrowdate = borrowdate.AddDays(mouth_max); //截止日期
if (System.DateTime.Compare(now, borrowdate) > 0)
{
str2 = str2 + row1["BookName"].ToString() + " " + borrowdate.ToString() + " " + now.ToString() + "\r\n";
if_can_borrow = false;
do_huanshu = true;
}
}
if (text8moder == 0)
{
textBox8.Text = "无借阅信息！";
if_get_bookid = 1;
}
else
{
textBox8.Text = str1;
if_get_bookid = 1;
}
textBox2.Text = booknum.ToString();
textBox3.Text = num_book_max.ToString(); //最多可借书数
//判断是否可以借书，，查看是否有欠费记录。
if (if_can_borrow == true)
{
int t = 0;
String arr = "是";
String strmy_returnedbook = "Select * From returnedbook Where CardNum = '" + cardnum + "' and Arrearage = '" + arr + "'";
MySqlDataAdapter dareturnedbook = new MySqlDataAdapter(strmy_returnedbook, open_mysql_llm.conn);
MySqlCommandBuilder bdreturnedbook = new MySqlCommandBuilder(dareturnedbook);
dareturnedbook.Fill(dslibrary, "returnedbook");
foreach (DataRow row in dslibrary.Tables["returnedbook"].Rows)
{
t++;
}
if (t != 0)
{
if_can_borrow = false;
str2 = "您有费用没交，不能够借书哦！";
}
}
if (do_huanshu == true)
{
MessageBox.Show(str2 + "\r\n" + " 请先还书后再缴费！");
}
else
{
if (if_can_borrow == false) //显示不能借书原因
{
//MessageBox.Show(str2);
get_number_llm.str_message = str2;
if_message_1 f1 = new if_message_1();
f1.Show();
//if_message_pay f2 = new if_message_pay();
//f2.Show();
}
}
if (booknum >= num_book_max) // 判断是否超过最多借书量
{
MessageBox.Show("不能够借书，原因：已达到最大借书量！");
max_book_num = false;
}
open_mysql_llm.conn.Close();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message.ToString() + "打开数据库失败！");
}
}
private void button1_Click(object sender, EventArgs e) //借书按钮
{
try
{
if (do_huanshu == false)
{
if (max_book_num == true)
{
if (butten1_times == 0)
{
butten1_times++;
if (textBox1.Text.Count() != 0 && textBox4.Text.Count() != 0)
{
if (if_can_borrow == true)
{
if (maxmouth == 0)
{
MessageBox.Show("不能借，因为该书预定在" + mouth_max.ToString() + "天以内！");
}
else
{
open_mysql_llm.conn.Open();
String cardnum = textBox1.Text.Trim();
String bookid = textBox4.Text.Trim();
DataSet dsmydata = new DataSet();
String strmy_bookinformation = "Select * From bookinformation Where BookID = '" + bookid + "'";
MySqlDataAdapter dabookinformation = new MySqlDataAdapter(strmy_bookinformation, open_mysql_llm.conn);
MySqlCommandBuilder bdbookinformation = new MySqlCommandBuilder(dabookinformation);
dabookinformation.Fill(dsmydata, "bookinformation");
//删除预定书的记录
if (delet_booking == 1)
{
String strmy_booking = "Select * From booking Where BookID = '" + bookid + "'";
MySqlDataAdapter dabooking = new MySqlDataAdapter(strmy_booking, open_mysql_llm.conn);
MySqlCommandBuilder bdbooking = new MySqlCommandBuilder(dabooking);
dabooking.Fill(dsmydata, "booking");
dsmydata.Tables["booking"].Rows[0].Delete();
dabooking.Update(dsmydata, "booking");
dsmydata.Tables["booking"].AcceptChanges();
}
//到此结束
String bookclassid = ""; //获得编码
foreach (DataRow row5 in dsmydata.Tables["bookinformation"].Rows)
{
row5["SendFlag"] = "1";
bookclassid = row5["BookClassID"].ToString().Trim();
}
dabookinformation.Update(dsmydata, "bookinformation");
dsmydata.Tables["bookinformation"].AcceptChanges();
//打开tbookclass获得图书名
String strmy_tbookclass = "Select * From tbookclass Where BookClassID = '" + bookclassid + "'";
MySqlDataAdapter datbookclass = new MySqlDataAdapter(strmy_tbookclass, open_mysql_llm.conn);
MySqlCommandBuilder bdtbookclass = new MySqlCommandBuilder(datbookclass);
datbookclass.Fill(dsmydata, "tbookclass");
String name = "";
foreach (DataRow row6 in dsmydata.Tables["tbookclass"].Rows)
{
name = row6["BookName"].ToString().Trim();
}
//打开recoreder表
String strmy_recorder = "Select * From recorder";
MySqlDataAdapter darecorder = new MySqlDataAdapter(strmy_recorder, open_mysql_llm.conn);
MySqlCommandBuilder bdrecorder = new MySqlCommandBuilder(darecorder);
darecorder.Fill(dsmydata, "recorder");
System.DateTime now = new System.DateTime(); //获取系统时间
now = System.DateTime.Now;
//为recorder添加借阅信息。
DataRow newrow = dsmydata.Tables["recorder"].NewRow();
newrow["BookID"] = bookid;
newrow["BorrowDate"] = now;
newrow["CardNum"] = cardnum;
//name = "名";
newrow["BookName"] = name;
newrow["BorrowingStatus"] = "在借";
dsmydata.Tables["recorder"].Rows.Add(newrow);
darecorder.Update(dsmydata, "recorder");
dsmydata.Tables["recorder"].AcceptChanges();
//#################################### returnedbook,添加
increase_returnedbook(bookid, cardnum, name, "借阅", "否", ref dsmydata);
MessageBox.Show("借书成功！");
textBox4.Text = "";
textBox9.Text = "";
open_mysql_llm.conn.Close();
//******************日志代码******************
//********************************************************************************************
String str_log = "";
str_log = " 借阅ID为：" + bookid.ToString() + " 的图书,";
Log.WriteLog(str_log);
//********************************************
button6_Click_run(); //再次执行该函数，进行刷新。
}
}
else
{
//MessageBox.Show("不能够借书！");
textBox4.Text = "";
textBox9.Text = "";
get_number_llm.str_message = "要交完费用，才能借书哦！";
if_message_1 f1 = new if_message_1();
f1.Show();
}
}
else
{
MessageBox.Show("不能执行该操作！");
}
}
}
else
{
MessageBox.Show("已达到最大借数量，不能借书！");
}
}
else
{
MessageBox.Show("同学，请先还书啊！不然我不借给你！啊!");
textBox4.Text = "";
textBox9.Text = "";
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message.ToString() + "打开数据库失败！");
}
}