protected void Button_AssignDesks_Click(object sender, EventArgs e)
{
string ErrorS = "Success!";
bool Is_AM = true;
DateTime t0 = new DateTime();
Is_AM = (bool)ViewState["Session_is_AM"];
t0 = (DateTime)ViewState["EditDate"];
DateTime t1 = new DateTime();
DateTime t2 = new DateTime();
t1 = (Is_AM) ? t0.AddHours(8) : t0.AddHours(13);
t2 = (Is_AM) ? t0.AddHours(13) : t0.AddHours(18);
//going to assign desks for this session
//first clear all desks.....
ExamsUtility u = new ExamsUtility();
u.ClearDeskAssignments(t1, t2);
ScheduledComponentList scl1 = new ScheduledComponentList();
scl1.LoadList_orderbyRoom(t1, t2);
Guid room1 = new Guid(); room1 = Guid.Empty;
foreach (ScheduledComponent sc in scl1.m_List)
{
if (sc.m_RoomId != room1)
{
if (!AllocateDesksRoom(sc.m_RoomId, t1, t2, ref ErrorS))
{
Label_message.Text = ErrorS;
Label_message.Visible = true;
return;
}
room1 = sc.m_RoomId;
}
}
scl1.LoadList(t1, t2);
UpdateDeskGrid();
}
protected void Button_Assign_Click(object sender, EventArgs e)
{
//now we are actually going to do it???
string ErrorS = "Success!";
bool Is_AM = (bool)ViewState["Session_is_AM"];
DateTime t0 = new DateTime();
t0 = (DateTime)ViewState["EditDate"];
DateTime t1 = new DateTime();
DateTime t2 = new DateTime();
t1 = (Is_AM) ? t0.AddHours(8) : t0.AddHours(13);
t2 = (Is_AM) ? t0.AddHours(13) : t0.AddHours(18);
DateTime time_last = new DateTime();
List <Guid> Rooms = new List <Guid>();
ListBox lb = ListBox_Rooms;
foreach (ListItem l in lb.Items)
{
if (l.Selected)
{
Rooms.Add(new Guid(l.Value));
}
}
//if no rooms allocated flag error
if (Rooms.Count == 0)
{
ErrorS = "...you haven't allocated Any rooms";
goto ErrorExit;
}
ExamsUtility eu = new ExamsUtility();
eu.ClearDeskAssignments(t1, t2);
//ought to clear all room allocations first...
//ought to do this by query
int n = 0;
ExamsUtility u = new ExamsUtility();
u.ClearRoomAssignments(t1, t2);
ExamRoom er = new ExamRoom();
n = 0;
List <int> Room_Capacity = new List <int>();
foreach (Guid d in Rooms)
{
er.Load(d);
Room_Capacity.Add(er.m_capacity);
n++;
}
int nmax = n - 1;
ScheduledComponentList scl1 = new ScheduledComponentList();
scl1.LoadList_Date(t1, t2); //order by DateTime
time_last = ((ScheduledComponent)scl1.m_List[0]).m_Date;
string s = GetQueryStringDay(t0.Year, t0.Month, t0.Day); // gets from sc ordered by datetime,NUMBER
List <Guid> Components = new List <Guid>();
List <int> number = new List <int>();
List <DateTime> Start_Time = new List <DateTime>();
Encode en = new Encode();
string db_connection = en.GetDbConnection();
using (SqlConnection cn = new SqlConnection(db_connection))
{
cn.Open();
using (SqlCommand cm = new SqlCommand(s, cn))
{
using (SqlDataReader dr = cm.ExecuteReader())
{
while (dr.Read())
{
Components.Add(dr.GetGuid(1));
number.Add(dr.GetInt32(4));
Start_Time.Add(dr.GetDateTime(3));
}
dr.Close();
}
}
cn.Close();
}
//first apply rules... hopefully these will fit ... if not flag error back to ui
int CurrentRoomCapacity = 0;
string s_rule = DropDownList_Rule1Source.SelectedItem.Text;
Guid rule_roomId = new Guid(DropDownList_Rule1Room.SelectedValue);
n = 0; foreach (Guid d in Rooms)
{
if (d == rule_roomId)
{
CurrentRoomCapacity = Room_Capacity[n]; break;
}
}
if (!Apply_Rule(s_rule, rule_roomId, scl1, ref ErrorS, Components, number, ref CurrentRoomCapacity))
{
goto ErrorExit;
}
Room_Capacity[n] = CurrentRoomCapacity;
if ((s_rule != "None") && (CheckBox1.Checked))
{
Rooms.Remove(rule_roomId); nmax--;
}
s_rule = DropDownList_Rule2Source.SelectedItem.Text;
rule_roomId = new Guid(DropDownList_Rule2Room.SelectedValue);
n = 0; foreach (Guid d in Rooms)
{
if (d == rule_roomId)
{
CurrentRoomCapacity = Room_Capacity[n]; break;
}
}
if (!Apply_Rule(s_rule, rule_roomId, scl1, ref ErrorS, Components, number, ref CurrentRoomCapacity))
{
goto ErrorExit;
}
if ((s_rule != "None") && (CheckBox2.Checked))
{
Rooms.Remove(rule_roomId); nmax--;
}
Room_Capacity[n] = CurrentRoomCapacity;
s_rule = DropDownList_Rule3Source.SelectedItem.Text;
rule_roomId = new Guid(DropDownList_Rule3Room.SelectedValue);
n = 0; foreach (Guid d in Rooms)
{
if (d == rule_roomId)
{
CurrentRoomCapacity = Room_Capacity[n]; break;
}
}
if (!Apply_Rule(s_rule, rule_roomId, scl1, ref ErrorS, Components, number, ref CurrentRoomCapacity))
{
goto ErrorExit;
}
if ((s_rule != "None") && (CheckBox3.Checked))
{
Rooms.Remove(rule_roomId); nmax--;
}
Room_Capacity[n] = CurrentRoomCapacity;
s_rule = DropDownList_Rule4Source.SelectedItem.Text;
rule_roomId = new Guid(DropDownList_Rule4Room.SelectedValue);
n = 0; foreach (Guid d in Rooms)
{
if (d == rule_roomId)
{
CurrentRoomCapacity = Room_Capacity[n]; break;
}
}
if (!Apply_Rule(s_rule, rule_roomId, scl1, ref ErrorS, Components, number, ref CurrentRoomCapacity))
{
goto ErrorExit;
}
if ((s_rule != "None") && (CheckBox4.Checked))
{
Rooms.Remove(rule_roomId); nmax--;
}
Room_Capacity[n] = CurrentRoomCapacity;
s_rule = DropDownList_Rule5Source.SelectedItem.Text;
rule_roomId = new Guid(DropDownList_Rule5Room.SelectedValue);
n = 0; foreach (Guid d in Rooms)
{
if (d == rule_roomId)
{
CurrentRoomCapacity = Room_Capacity[n]; break;
}
}
if (!Apply_Rule(s_rule, rule_roomId, scl1, ref ErrorS, Components, number, ref CurrentRoomCapacity))
{
goto ErrorExit;
}
if ((s_rule != "None") && (CheckBox5.Checked))
{
Rooms.Remove(rule_roomId); nmax--;
}
Room_Capacity[n] = CurrentRoomCapacity;
ScheduledComponentList scl2 = new ScheduledComponentList();
foreach (ScheduledComponent c in scl1.m_List)
{
if (c.m_RoomId == Guid.Empty)
{
scl2.m_List.Add(c);
}
}
//now we apply the rest
//idea is we find the sc with most students.... and put into biggest room first
//first correct room capacity?
n = 0;
// well i think we have all the information....
//going to assign biggest exam to biggest room first
int index = 0;
foreach (Guid d in Components)
{
//so new component....
//if there is a complete gap before we start this component we can clear room allocations....
//find the first (earliest) scheduled component
foreach (ScheduledComponent c in scl2.m_List)
{
if (c.m_ComponentId == d)
{
if (c.m_RoomId == Guid.Empty)
{
if (c.m_Date > time_last.AddMinutes(10))
{
//so this one starts at least 10 minutes after all sofar have finished....
time_last = c.m_Date.AddMinutes(c.m_TimeAllowed);
//so can reset rooms..... ie back to full capacity?
Room_Capacity.Clear(); n = 0;
foreach (Guid d1 in Rooms)
{
er.Load(d1);
Room_Capacity.Add(er.m_capacity);
n++;
}
nmax = n - 1;
}
}
}
}
n = 0;
while ((Room_Capacity[n] == 0) && (n <= nmax))
{
n++;
}
if (n > nmax)
{
ErrorS = "Ran out of room capacity !!"; goto ErrorExit;
}
//going to check if next one will fit in any room we have available... if so use it! search smallest first?
for (int i = nmax; i >= 0; i--)
{
if (Room_Capacity[i] >= number[index])
{
n = i; break;
}
}
foreach (ScheduledComponent c in scl2.m_List)
{
if (c.m_ComponentId == d)
{
if (c.m_RoomId == Guid.Empty)
{
if (c.m_Date.AddMinutes(c.m_TimeAllowed) > time_last)
{
time_last = c.m_Date.AddMinutes(c.m_TimeAllowed);
}
//really ought to check to see if he has any other componets in this session and assign the same room/...
foreach (ScheduledComponent c1 in scl1.m_List)
{
if (c1.m_StudentId == c.m_StudentId)
{
c.m_RoomId = c1.m_RoomId;
}
}
if (c.m_RoomId == Guid.Empty)
{
c.m_RoomId = Rooms[n];
Room_Capacity[n]--;
}
c.Save();
foreach (ScheduledComponent c1 in scl2.m_List)
{
if ((c1.m_StudentId == c.m_StudentId) && (c1.m_RoomId == Guid.Empty))
{
c.m_RoomId = Rooms[n];
c.Save();
//Room_Capacity[n]--; should already have cleared clashes
}
}
}
}
while ((Room_Capacity[n] == 0) && (n < nmax))
{
n++;
}
if (n > nmax)
{
ErrorS = "Ran out of room capacity !!"; goto ErrorExit;
}
}
index++;
}
//check??
//success; open the summary panel
Panel_left1.Visible = false; Panel_right1.Visible = false;
Label_message.Text = "Rooms Allocated Successfully.";
Label_message.Visible = true;
SqlDataSource3.SelectCommand = GetQueryStringRoomSummary(t1, t2, true);
SqlDataSource3.ConnectionString = en.GetDbConnection();
SqlDataSource3.DataBind();
return;
ErrorExit : Label_message.Text = ErrorS;
Label_message.BackColor = System.Drawing.Color.Red;
return;
}