Populating a Three Dimensional Dictionary gives weird Results in C#





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1















I am trying to fill my Three-Dimensional Dictionary inside of a Loop, where I iterate through the years, months and ItemCategories.



Dictionary<int,Dictionary<int, Dictionary<ItemCategories, List<ExpenseStatisticItem>>>> ExpenseItemsData

ExpenseItemsData[currentYear][currentMonth][category].Add(item);


While Debugging following is being called:



ExpenseItemsData[2016][3][ItemCategory.Food].Add("Bla");


Now somehow it doesn't put the Entry where I told him to, but instead it gets put in every Entry of the Dictionary where Category == Food. Somehow the Years and the Months get completely ignored.



What am I missing?



Here is the full code:



        string currentDate = "";
int currentMonth = 0;
int currentYear = 0;
string fileName = "DynamischeAusgaben.txt";


var directory = new DirectoryInfo("C:/MeineDaten/FinanzProgramm/Statistik/");
var years = directory.GetDirectories();

foreach (var year in years)
{
currentYear = int.Parse(year.Name);

if (currentYear == 0)
{
continue;
}

directory = new DirectoryInfo(String.Format("C:/MeineDaten/FinanzProgramm/Statistik/{0}/", currentYear));
var months = directory.GetDirectories();

foreach (var month in months)
{
currentMonth = int.Parse(month.Name);

if (currentMonth == 0)
{
continue;
}

int dayCount = DateTime.DaysInMonth(currentYear, currentMonth);
List<string> dayDates = new List<string>();

// Datums der verschiedenen Tage dieses Monats zusammenstellen
for (int i = 1; i < dayCount + 1; i++)
{
dayDates.Add(new DateTime(currentYear, currentMonth, i, 0, 0, 0).ToShortDateString());
}

string path = string.Format("C:/MeineDaten/FinanzProgramm/Statistik/{0}/{1}/DynamischeAusgaben",
currentYear, currentMonth);
bool fileExists = File.Exists(Path.Combine(path, fileName));

if (!fileExists)
{
continue;
}
string data = "";
using (StreamReader sr = new StreamReader(Path.Combine(path, fileName)))
{
data = sr.ReadToEnd();
data = data.Replace(System.Environment.NewLine, "");
}

foreach (var date in dayDates)
{
// Wenn das Datum nicht in der Datei enthalten ist, geh weiter.
if (!data.Contains(date))
{
continue;
}

string days = data.Split(';');

for (int i = 0; i < days.Length; i++)
{
// Leere Zeile ignorieren
if (days[i] == "")
{
continue;
}

string dayAndCategories = days[i].Split('<');
string dayString = dayAndCategories[0];

for (int j = 1; j < dayAndCategories.Length; j++)
{
string categoryAndItems = dayAndCategories[j].Split('|');

ItemCategories category = (ItemCategories)Enum.Parse(typeof(ItemCategories), categoryAndItems[0]);
decimal total = decimal.Parse(categoryAndItems[1]);

string itemsAndNothing = categoryAndItems[2].Split('>');


for (int k = 0; k < itemsAndNothing.Length; k++)
{
if (itemsAndNothing[k] == "")
{
continue;
}

string itemvalues = itemsAndNothing[1].Split('#');

ExpenseStatisticItem item = new ExpenseStatisticItem
{
Name = itemvalues[0],
Total = decimal.Parse(itemvalues[1]),
Count = int.Parse(itemvalues[2])
};


bool matchFound = false;
int matchIndex = 0;

// Ermitteln ob es schon ein Item mit diesem Namen in diesem Monat und Kategorie gibt
for (int l = 0; l < Global.ExpenseItemsData[currentYear][currentMonth][category].Count; l++)
{
ExpenseStatisticItem itemToCompare = Global.ExpenseItemsData[currentYear][currentMonth][category][l];

if (itemToCompare.Name == item.Name)
{
matchFound = true;
matchIndex = l;
}
}

// Wenn es schon ein Item gibt, dann fasse die Items zusammen
if (matchFound)
{
Global.ExpenseItemsData[currentYear][currentMonth][category][matchIndex].Count += item.Count;
Global.ExpenseItemsData[currentYear][currentMonth][category][matchIndex].Total += item.Total;
}
// Ansonsten erstelle einen neuen Eintrag
else
{

Global.ExpenseItemsData[currentYear][currentMonth][category].Add(item);

}
}
}
}
}
}
}









share|improve this question

























  • Please tag your question with a programming language, and please provide more code so we can determine where the issue is.

    – Robin Green
    Nov 24 '18 at 13:30











  • can you add the loop you wrote, and I would advice to create a structure or class instead of using what you call a three dimensiona Dictionary...

    – Cedric Dumont
    Nov 24 '18 at 14:34











  • How do you create the dictionary?

    – Luaan
    Nov 24 '18 at 14:52






  • 2





    Likely you have reused the same List object in each case instead of creating a new one so they all point to the same list for a given food type.

    – Ian Mercer
    Nov 24 '18 at 14:58











  • BTW, unless your access pattern is always Y>M>C, this nested dictionary approach might not be a good one. A simple List<ExpenseItem> and LINQ Where clauses to filter by year, month or food type or any combination thereof would be easier to code, more readable and more flexible.

    – Ian Mercer
    Nov 24 '18 at 15:02


















1















I am trying to fill my Three-Dimensional Dictionary inside of a Loop, where I iterate through the years, months and ItemCategories.



Dictionary<int,Dictionary<int, Dictionary<ItemCategories, List<ExpenseStatisticItem>>>> ExpenseItemsData

ExpenseItemsData[currentYear][currentMonth][category].Add(item);


While Debugging following is being called:



ExpenseItemsData[2016][3][ItemCategory.Food].Add("Bla");


Now somehow it doesn't put the Entry where I told him to, but instead it gets put in every Entry of the Dictionary where Category == Food. Somehow the Years and the Months get completely ignored.



What am I missing?



Here is the full code:



        string currentDate = "";
int currentMonth = 0;
int currentYear = 0;
string fileName = "DynamischeAusgaben.txt";


var directory = new DirectoryInfo("C:/MeineDaten/FinanzProgramm/Statistik/");
var years = directory.GetDirectories();

foreach (var year in years)
{
currentYear = int.Parse(year.Name);

if (currentYear == 0)
{
continue;
}

directory = new DirectoryInfo(String.Format("C:/MeineDaten/FinanzProgramm/Statistik/{0}/", currentYear));
var months = directory.GetDirectories();

foreach (var month in months)
{
currentMonth = int.Parse(month.Name);

if (currentMonth == 0)
{
continue;
}

int dayCount = DateTime.DaysInMonth(currentYear, currentMonth);
List<string> dayDates = new List<string>();

// Datums der verschiedenen Tage dieses Monats zusammenstellen
for (int i = 1; i < dayCount + 1; i++)
{
dayDates.Add(new DateTime(currentYear, currentMonth, i, 0, 0, 0).ToShortDateString());
}

string path = string.Format("C:/MeineDaten/FinanzProgramm/Statistik/{0}/{1}/DynamischeAusgaben",
currentYear, currentMonth);
bool fileExists = File.Exists(Path.Combine(path, fileName));

if (!fileExists)
{
continue;
}
string data = "";
using (StreamReader sr = new StreamReader(Path.Combine(path, fileName)))
{
data = sr.ReadToEnd();
data = data.Replace(System.Environment.NewLine, "");
}

foreach (var date in dayDates)
{
// Wenn das Datum nicht in der Datei enthalten ist, geh weiter.
if (!data.Contains(date))
{
continue;
}

string days = data.Split(';');

for (int i = 0; i < days.Length; i++)
{
// Leere Zeile ignorieren
if (days[i] == "")
{
continue;
}

string dayAndCategories = days[i].Split('<');
string dayString = dayAndCategories[0];

for (int j = 1; j < dayAndCategories.Length; j++)
{
string categoryAndItems = dayAndCategories[j].Split('|');

ItemCategories category = (ItemCategories)Enum.Parse(typeof(ItemCategories), categoryAndItems[0]);
decimal total = decimal.Parse(categoryAndItems[1]);

string itemsAndNothing = categoryAndItems[2].Split('>');


for (int k = 0; k < itemsAndNothing.Length; k++)
{
if (itemsAndNothing[k] == "")
{
continue;
}

string itemvalues = itemsAndNothing[1].Split('#');

ExpenseStatisticItem item = new ExpenseStatisticItem
{
Name = itemvalues[0],
Total = decimal.Parse(itemvalues[1]),
Count = int.Parse(itemvalues[2])
};


bool matchFound = false;
int matchIndex = 0;

// Ermitteln ob es schon ein Item mit diesem Namen in diesem Monat und Kategorie gibt
for (int l = 0; l < Global.ExpenseItemsData[currentYear][currentMonth][category].Count; l++)
{
ExpenseStatisticItem itemToCompare = Global.ExpenseItemsData[currentYear][currentMonth][category][l];

if (itemToCompare.Name == item.Name)
{
matchFound = true;
matchIndex = l;
}
}

// Wenn es schon ein Item gibt, dann fasse die Items zusammen
if (matchFound)
{
Global.ExpenseItemsData[currentYear][currentMonth][category][matchIndex].Count += item.Count;
Global.ExpenseItemsData[currentYear][currentMonth][category][matchIndex].Total += item.Total;
}
// Ansonsten erstelle einen neuen Eintrag
else
{

Global.ExpenseItemsData[currentYear][currentMonth][category].Add(item);

}
}
}
}
}
}
}









share|improve this question

























  • Please tag your question with a programming language, and please provide more code so we can determine where the issue is.

    – Robin Green
    Nov 24 '18 at 13:30











  • can you add the loop you wrote, and I would advice to create a structure or class instead of using what you call a three dimensiona Dictionary...

    – Cedric Dumont
    Nov 24 '18 at 14:34











  • How do you create the dictionary?

    – Luaan
    Nov 24 '18 at 14:52






  • 2





    Likely you have reused the same List object in each case instead of creating a new one so they all point to the same list for a given food type.

    – Ian Mercer
    Nov 24 '18 at 14:58











  • BTW, unless your access pattern is always Y>M>C, this nested dictionary approach might not be a good one. A simple List<ExpenseItem> and LINQ Where clauses to filter by year, month or food type or any combination thereof would be easier to code, more readable and more flexible.

    – Ian Mercer
    Nov 24 '18 at 15:02














1












1








1








I am trying to fill my Three-Dimensional Dictionary inside of a Loop, where I iterate through the years, months and ItemCategories.



Dictionary<int,Dictionary<int, Dictionary<ItemCategories, List<ExpenseStatisticItem>>>> ExpenseItemsData

ExpenseItemsData[currentYear][currentMonth][category].Add(item);


While Debugging following is being called:



ExpenseItemsData[2016][3][ItemCategory.Food].Add("Bla");


Now somehow it doesn't put the Entry where I told him to, but instead it gets put in every Entry of the Dictionary where Category == Food. Somehow the Years and the Months get completely ignored.



What am I missing?



Here is the full code:



        string currentDate = "";
int currentMonth = 0;
int currentYear = 0;
string fileName = "DynamischeAusgaben.txt";


var directory = new DirectoryInfo("C:/MeineDaten/FinanzProgramm/Statistik/");
var years = directory.GetDirectories();

foreach (var year in years)
{
currentYear = int.Parse(year.Name);

if (currentYear == 0)
{
continue;
}

directory = new DirectoryInfo(String.Format("C:/MeineDaten/FinanzProgramm/Statistik/{0}/", currentYear));
var months = directory.GetDirectories();

foreach (var month in months)
{
currentMonth = int.Parse(month.Name);

if (currentMonth == 0)
{
continue;
}

int dayCount = DateTime.DaysInMonth(currentYear, currentMonth);
List<string> dayDates = new List<string>();

// Datums der verschiedenen Tage dieses Monats zusammenstellen
for (int i = 1; i < dayCount + 1; i++)
{
dayDates.Add(new DateTime(currentYear, currentMonth, i, 0, 0, 0).ToShortDateString());
}

string path = string.Format("C:/MeineDaten/FinanzProgramm/Statistik/{0}/{1}/DynamischeAusgaben",
currentYear, currentMonth);
bool fileExists = File.Exists(Path.Combine(path, fileName));

if (!fileExists)
{
continue;
}
string data = "";
using (StreamReader sr = new StreamReader(Path.Combine(path, fileName)))
{
data = sr.ReadToEnd();
data = data.Replace(System.Environment.NewLine, "");
}

foreach (var date in dayDates)
{
// Wenn das Datum nicht in der Datei enthalten ist, geh weiter.
if (!data.Contains(date))
{
continue;
}

string days = data.Split(';');

for (int i = 0; i < days.Length; i++)
{
// Leere Zeile ignorieren
if (days[i] == "")
{
continue;
}

string dayAndCategories = days[i].Split('<');
string dayString = dayAndCategories[0];

for (int j = 1; j < dayAndCategories.Length; j++)
{
string categoryAndItems = dayAndCategories[j].Split('|');

ItemCategories category = (ItemCategories)Enum.Parse(typeof(ItemCategories), categoryAndItems[0]);
decimal total = decimal.Parse(categoryAndItems[1]);

string itemsAndNothing = categoryAndItems[2].Split('>');


for (int k = 0; k < itemsAndNothing.Length; k++)
{
if (itemsAndNothing[k] == "")
{
continue;
}

string itemvalues = itemsAndNothing[1].Split('#');

ExpenseStatisticItem item = new ExpenseStatisticItem
{
Name = itemvalues[0],
Total = decimal.Parse(itemvalues[1]),
Count = int.Parse(itemvalues[2])
};


bool matchFound = false;
int matchIndex = 0;

// Ermitteln ob es schon ein Item mit diesem Namen in diesem Monat und Kategorie gibt
for (int l = 0; l < Global.ExpenseItemsData[currentYear][currentMonth][category].Count; l++)
{
ExpenseStatisticItem itemToCompare = Global.ExpenseItemsData[currentYear][currentMonth][category][l];

if (itemToCompare.Name == item.Name)
{
matchFound = true;
matchIndex = l;
}
}

// Wenn es schon ein Item gibt, dann fasse die Items zusammen
if (matchFound)
{
Global.ExpenseItemsData[currentYear][currentMonth][category][matchIndex].Count += item.Count;
Global.ExpenseItemsData[currentYear][currentMonth][category][matchIndex].Total += item.Total;
}
// Ansonsten erstelle einen neuen Eintrag
else
{

Global.ExpenseItemsData[currentYear][currentMonth][category].Add(item);

}
}
}
}
}
}
}









share|improve this question
















I am trying to fill my Three-Dimensional Dictionary inside of a Loop, where I iterate through the years, months and ItemCategories.



Dictionary<int,Dictionary<int, Dictionary<ItemCategories, List<ExpenseStatisticItem>>>> ExpenseItemsData

ExpenseItemsData[currentYear][currentMonth][category].Add(item);


While Debugging following is being called:



ExpenseItemsData[2016][3][ItemCategory.Food].Add("Bla");


Now somehow it doesn't put the Entry where I told him to, but instead it gets put in every Entry of the Dictionary where Category == Food. Somehow the Years and the Months get completely ignored.



What am I missing?



Here is the full code:



        string currentDate = "";
int currentMonth = 0;
int currentYear = 0;
string fileName = "DynamischeAusgaben.txt";


var directory = new DirectoryInfo("C:/MeineDaten/FinanzProgramm/Statistik/");
var years = directory.GetDirectories();

foreach (var year in years)
{
currentYear = int.Parse(year.Name);

if (currentYear == 0)
{
continue;
}

directory = new DirectoryInfo(String.Format("C:/MeineDaten/FinanzProgramm/Statistik/{0}/", currentYear));
var months = directory.GetDirectories();

foreach (var month in months)
{
currentMonth = int.Parse(month.Name);

if (currentMonth == 0)
{
continue;
}

int dayCount = DateTime.DaysInMonth(currentYear, currentMonth);
List<string> dayDates = new List<string>();

// Datums der verschiedenen Tage dieses Monats zusammenstellen
for (int i = 1; i < dayCount + 1; i++)
{
dayDates.Add(new DateTime(currentYear, currentMonth, i, 0, 0, 0).ToShortDateString());
}

string path = string.Format("C:/MeineDaten/FinanzProgramm/Statistik/{0}/{1}/DynamischeAusgaben",
currentYear, currentMonth);
bool fileExists = File.Exists(Path.Combine(path, fileName));

if (!fileExists)
{
continue;
}
string data = "";
using (StreamReader sr = new StreamReader(Path.Combine(path, fileName)))
{
data = sr.ReadToEnd();
data = data.Replace(System.Environment.NewLine, "");
}

foreach (var date in dayDates)
{
// Wenn das Datum nicht in der Datei enthalten ist, geh weiter.
if (!data.Contains(date))
{
continue;
}

string days = data.Split(';');

for (int i = 0; i < days.Length; i++)
{
// Leere Zeile ignorieren
if (days[i] == "")
{
continue;
}

string dayAndCategories = days[i].Split('<');
string dayString = dayAndCategories[0];

for (int j = 1; j < dayAndCategories.Length; j++)
{
string categoryAndItems = dayAndCategories[j].Split('|');

ItemCategories category = (ItemCategories)Enum.Parse(typeof(ItemCategories), categoryAndItems[0]);
decimal total = decimal.Parse(categoryAndItems[1]);

string itemsAndNothing = categoryAndItems[2].Split('>');


for (int k = 0; k < itemsAndNothing.Length; k++)
{
if (itemsAndNothing[k] == "")
{
continue;
}

string itemvalues = itemsAndNothing[1].Split('#');

ExpenseStatisticItem item = new ExpenseStatisticItem
{
Name = itemvalues[0],
Total = decimal.Parse(itemvalues[1]),
Count = int.Parse(itemvalues[2])
};


bool matchFound = false;
int matchIndex = 0;

// Ermitteln ob es schon ein Item mit diesem Namen in diesem Monat und Kategorie gibt
for (int l = 0; l < Global.ExpenseItemsData[currentYear][currentMonth][category].Count; l++)
{
ExpenseStatisticItem itemToCompare = Global.ExpenseItemsData[currentYear][currentMonth][category][l];

if (itemToCompare.Name == item.Name)
{
matchFound = true;
matchIndex = l;
}
}

// Wenn es schon ein Item gibt, dann fasse die Items zusammen
if (matchFound)
{
Global.ExpenseItemsData[currentYear][currentMonth][category][matchIndex].Count += item.Count;
Global.ExpenseItemsData[currentYear][currentMonth][category][matchIndex].Total += item.Total;
}
// Ansonsten erstelle einen neuen Eintrag
else
{

Global.ExpenseItemsData[currentYear][currentMonth][category].Add(item);

}
}
}
}
}
}
}






c# dictionary






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 25 '18 at 16:09







user3086972

















asked Nov 24 '18 at 13:19









user3086972user3086972

255




255













  • Please tag your question with a programming language, and please provide more code so we can determine where the issue is.

    – Robin Green
    Nov 24 '18 at 13:30











  • can you add the loop you wrote, and I would advice to create a structure or class instead of using what you call a three dimensiona Dictionary...

    – Cedric Dumont
    Nov 24 '18 at 14:34











  • How do you create the dictionary?

    – Luaan
    Nov 24 '18 at 14:52






  • 2





    Likely you have reused the same List object in each case instead of creating a new one so they all point to the same list for a given food type.

    – Ian Mercer
    Nov 24 '18 at 14:58











  • BTW, unless your access pattern is always Y>M>C, this nested dictionary approach might not be a good one. A simple List<ExpenseItem> and LINQ Where clauses to filter by year, month or food type or any combination thereof would be easier to code, more readable and more flexible.

    – Ian Mercer
    Nov 24 '18 at 15:02



















  • Please tag your question with a programming language, and please provide more code so we can determine where the issue is.

    – Robin Green
    Nov 24 '18 at 13:30











  • can you add the loop you wrote, and I would advice to create a structure or class instead of using what you call a three dimensiona Dictionary...

    – Cedric Dumont
    Nov 24 '18 at 14:34











  • How do you create the dictionary?

    – Luaan
    Nov 24 '18 at 14:52






  • 2





    Likely you have reused the same List object in each case instead of creating a new one so they all point to the same list for a given food type.

    – Ian Mercer
    Nov 24 '18 at 14:58











  • BTW, unless your access pattern is always Y>M>C, this nested dictionary approach might not be a good one. A simple List<ExpenseItem> and LINQ Where clauses to filter by year, month or food type or any combination thereof would be easier to code, more readable and more flexible.

    – Ian Mercer
    Nov 24 '18 at 15:02

















Please tag your question with a programming language, and please provide more code so we can determine where the issue is.

– Robin Green
Nov 24 '18 at 13:30





Please tag your question with a programming language, and please provide more code so we can determine where the issue is.

– Robin Green
Nov 24 '18 at 13:30













can you add the loop you wrote, and I would advice to create a structure or class instead of using what you call a three dimensiona Dictionary...

– Cedric Dumont
Nov 24 '18 at 14:34





can you add the loop you wrote, and I would advice to create a structure or class instead of using what you call a three dimensiona Dictionary...

– Cedric Dumont
Nov 24 '18 at 14:34













How do you create the dictionary?

– Luaan
Nov 24 '18 at 14:52





How do you create the dictionary?

– Luaan
Nov 24 '18 at 14:52




2




2





Likely you have reused the same List object in each case instead of creating a new one so they all point to the same list for a given food type.

– Ian Mercer
Nov 24 '18 at 14:58





Likely you have reused the same List object in each case instead of creating a new one so they all point to the same list for a given food type.

– Ian Mercer
Nov 24 '18 at 14:58













BTW, unless your access pattern is always Y>M>C, this nested dictionary approach might not be a good one. A simple List<ExpenseItem> and LINQ Where clauses to filter by year, month or food type or any combination thereof would be easier to code, more readable and more flexible.

– Ian Mercer
Nov 24 '18 at 15:02





BTW, unless your access pattern is always Y>M>C, this nested dictionary approach might not be a good one. A simple List<ExpenseItem> and LINQ Where clauses to filter by year, month or food type or any combination thereof would be easier to code, more readable and more flexible.

– Ian Mercer
Nov 24 '18 at 15:02












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