private void opt_Click(object sender, EventArgs e)
{
//---------------------
User utemp = FileDate.ReadOne <User>(alteredOne);
string tip = utemp.Valid ? "被冻结" : "解除冻结";
DialogResult dr = MessageBox.Show(utemp.ID + "即将" + tip, "重要提示", MessageBoxButtons.OKCancel);
if (dr == DialogResult.OK)
{
if (utemp.Pri > Main.user.Pri || (int)utemp.Pri == 3)
{
MessageBox.Show("你没有足够的权限执行此操作", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
else
{
if (utemp.Valid)
{
int dur = Convert.ToInt32(Days.Text);
FileDate.WriteInfo <Record>(new Record(OptType.冻结, Main.user.ID, utemp.ID, dur));
}
utemp.Valid = !utemp.Valid;
FileDate.WriteInfo <User>(utemp, alteredOne);
MessageBox.Show("操作成功！");
this.Close();
}
}
}
private void search_Click(object sender, EventArgs e)
{
string uid = IDtxt.Text;
if (uid != "")
{
User utemp = new User();
try
{
for (int i = 0; ; i++)
{
utemp = FileDate.ReadOne <User>(i);
if (utemp.ID == uid)
{
v = utemp.Valid;
alteredOne = i;
state.Text = v ? "正常" : "被冻结";
opt.Text = v ? "冻结账号" : "解除冻结";
FreezeShow();
break;
}
}
}
catch (ArgumentOutOfRangeException)
{
state.Text = "未找到账号相关信息";
}
}
}
private void 帮助ToolStripMenuItem_Click(object sender, EventArgs e)
{
uint size = FileDate.CountOf <Record>();
for (int i = 0; i < size; i++)
{
FileDate.ReadOne <Record>(i).debug();
}
}
private List <BookMaster> SearchByKeyword(Book book)
{
List <BookMaster> bklist = new List <BookMaster>();
BookMaster master = new BookMaster();
uint size = FileDate.CountOf <BookMaster>();
for (int i = 0; i < size; i++)
{
master = FileDate.ReadOne <BookMaster>(i);
if (master.SimiliarTo(book))
{
bklist.Add(master);
}
}
return(bklist);
}
//根据ID找到对象
public static T FindObjByID <T>(string id) where T : IGet, new()
{
try
{
for (int i = 0; ; i++)
{
if (FileDate.ReadOne <T>(i).GetID() == id)
{
return(FileDate.ReadOne <T>(i));
}
}
}
catch (ArgumentOutOfRangeException)
{
MessageBox.Show("未找到用户信息！", "提示");
}
return(new T());
}
//对象是否已经存在
public static bool Exist <T>(T t) where T : IGet, new()
{
try
{
T t2 = new T();
for (int i = 0; ; i++)
{
t2 = FileDate.ReadOne <T>(i);
if (t.GetID().ToLower() == t2.GetID().ToLower() || t.GetName().ToLower() == t2.GetName().ToLower())
{
return(true);
}
}
}
catch (ArgumentOutOfRangeException)
{
}
return(false);
}
private void confirm_Click(object sender, EventArgs e)
{
if (Vis.Checked)
{
Main.user = new User("Visitor");
qual = true;
}
else if (!(Stu.Checked || Worker.Checked || Admin.Checked))
{
MessageBox.Show("请选择你的登录身份！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
else
{
User utemp = new User();
uint size = FileDate.CountOf <User>();
for (int i = 0; i < size; i++)
{
utemp = FileDate.ReadOne <User>(i);
if (utemp.ID == IDtxt.Text && utemp.Pwd == PWDtxt.Text)
{
if ((Stu.Checked && utemp.Pri == Privilege.学生) ||
(Worker.Checked && utemp.Pri == Privilege.职工) ||
(Admin.Checked && utemp.Pri == Privilege.管理员))
{
qual = true;
Main.user = new User(utemp);
main.updateStatus();
break;
}
}
}
}
if (qual)
{
this.Close();
}
else
{
MessageBox.Show("未找到用户信息，用户名或密码或者登录身份错误.", "登录失败", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
}
}
//通过ISBN来找到书籍（书籍ISBN是唯一的，可以当做一个标识）
public static List <BookMaster> SearchByISBN(string isbn)
{
BookMaster master = new BookMaster();
uint count = FileDate.CountOf <BookMaster>();
List <BookMaster> bklist = new List <BookMaster>(1);
for (int i = 0; i < count; i++)
{
master = FileDate.ReadOne <BookMaster>(i);
if (master.Info.ISBN.Contains(isbn))
{
bklist.Add(master);
break;
}
}
if (bklist.Count == 0)
{
MessageBox.Show("未找到该ISBN编号的书", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
return(bklist);
}
private List <Record> RecordWithinSpan(int span)
{
List <Record> reclist = new List <Record>();
int len = (int)FileDate.CountOf <Record>();
int size = Marshal.SizeOf(typeof(Record));
Record rec = new Record();
for (int i = 1; i <= len; i++)
{
rec = FileDate.ReadOne <Record>(len - i);
if (rec.spanDaysToPresent() <= span)
{
reclist.Add(rec);
}
else
{
break;
}
}
return(reclist);
}
//与以前的记录匹配，成为历史记录
public static void MatchRecord(OptType tp, string opt, string obj)
{
if (!File.Exists("Lib_Mana_Sys.User.dat"))
{
return;
}
int len = 0;
using (FileStream fs = new FileStream("Lib_Mana_Sys.Record.dat", FileMode.Open))
{
len = (int)fs.Length / Marshal.SizeOf(typeof(Record));
}
Record rec = new Record();
for (int i = 1; i <= len; i++)
{
rec = FileDate.ReadOne <Record>(len - i);
if (rec.Unmatch && rec.Type == tp && rec.Optor == opt && rec.Objer == obj)
{
FileDate.AlterInfo(rec.findMatch());
break;
}
}
}
