public static void add_to_list_changing(changing entity)
{
if (Base.first_c == null)
{
Base.first_c = Base.last_c = new changing(entity);
Base.first_c.next = null;
return;
}
changing new_change = new changing(entity);
new_change.next = null;
Base.last_c.next = new_change;
Base.last_c = new_change;
}
//
public static void read_changing()
{
using (StreamReader sr = File.OpenText(constants.changing)) {
string s = "";
while ((s = sr.ReadLine()) != null)
{
string [] temp = s.Split(new string [] { "," }, StringSplitOptions.RemoveEmptyEntries);
string [] temp2 = temp[0].Split(new string [] { "." }, StringSplitOptions.RemoveEmptyEntries);
DateTime date = new DateTime(int.Parse(temp2 [2]), int.Parse(temp2 [1]), int.Parse(temp2 [0]));
changing entity = new changing(date,
temp[1],
int.Parse(temp[2]));
add_to_list_changing(entity);
}
}
}
public static change view_changing(Int32 id)
{
Decimal profit = 0;
DL temp = new DL();
string name_company = temp [id].name; //here we have a name of needed company
//searching
Decimal old_cost = 0;
Entity i = Base.first_e;
while (i != null)
{
//for each record in entity's list we should calculate profit
if (i.name == name_company)
{
//ok, this's needed company
//let's calculate profit
changing j = Base.first_c;
Decimal q = i.count * i.cost;
while (j != null)
{
if (j.name == name_company && j.date.CompareTo(i.date) > 0)
{
q = q * (1 + (Decimal)j.change / 100);
}
j = j.next;
}
old_cost += i.cost * i.count;
profit += q;
}
i = i.next;
}
change ret = new change();
ret.new_cost = profit;
ret.profit = profit - old_cost;
ret.percent = ((float)(profit / old_cost) - 1) * 100;
return(ret);
}
public changing(changing copy)
{
this.change = copy.change;
this.date = copy.date;
this.name = copy.name;
}
