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Use of a multidemensional Array

I am using c# to write a program,
i have the data that i need to use in a text file, that is saves as a comma seperated list, with multiple lines

Ex

s[0] = {a,b,c}
s[1] = {d,e,f}
s[2] = {g,h,i}

I am looking for how to pull in this data as a multidemensional array, or whatever would be the easiest thing to use.

any suggestions?
0
cotj73
Asked:
cotj73
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1 Solution
 
microboltCommented:
What I like to do is create an class that will hold each line of the csv.

For example if you had an CSV with 3 fields called id, firstname, lastname make an class like this:

class person
{
      public int id { get; set; }
      public string firstname { get; set; }
      public string lastname { get; set; }
}

Then create an List<T> of the collection.

     List<person> Persons = new List<person>();

The go through each line of the CSV and add it to the List

     Persons.Add(new person() { id = csv[0], firstname = csv[1], lastname = csv[2] });

Whats nice about this approach is you can use a number of different approaches for accessing the data like foreach or LINQ.  For example if you wanted to use LINQ against it you could type:

     var results = from p in Persons
                          where p.id == 5
                          select p;

or an foreach

     foreach(var currentPerson in Persons)
     {
            MessageBox.Show(currentPerson.firstname);
     }
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cotj73Author Commented:
the only problem that i forsee in this approach is that i have to read about 325 lines, and each line holds about 40 different values.
here is an example of a line

-.2,-.2,19785,0,T 04/17/2009,13:35:28.953000 UTC,first,middle,last,1946-11-11,Gender,OD,,ZERNIKE,SCALE:  2.56245844477293E-03,28,0,7.26319504749052E-04,-1.28435703005351E-04,-4.70736639230834E-04,-2.11696194741656E-04,-6.94188170158255E-06,1.21760327335195E-05,-1.16471189175351E-04,1.892881053328E-04,2.43394089421797E-05,-4.27588262279435E-06,3.96428568852939E-05,1.21416458423661E-05,-5.07598197431613E-06,2.42835581669891E-05,1.84678127720032E-05,-1.6793619674676E-05,-5.20898049006682E-06,-1.76892518358479E-05,-7.00485451263667E-06,1.38926890110059E-05,-1.61087650649244E-05,1.32222083318142E-05,2.28048832601142E-05,4.92909574194228E-05,-3.9719165605381E-05,-3.30874305806735E-05,4.36658825006991E-05,-1,0,-1,-5.05906053272166E-03,-3.51320393781458E-03,6.18699368903292E-04,4.7028011256734E-04,1003597,

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microboltCommented:
Won't be any problem with it just make 40 properties in the class.  Another benefit that you might like since it looks like measurements your working with is with this approach you can easily sort based on column as well.
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cotj73Author Commented:
would it be possible in this class to use a for loop in the declaration,
many of the values of the text are
z00
z10
z11
z20
z21
z22
...
z65
z66

i have an algorythm to do this
for (int i = 0; i <= iFValue; i++)
            {
                for (int j = 0; j <= i; j++)
                {
                    dgvSlectedPatient.Columns.Add("cZ" + Convert.ToString(i) + Convert.ToString(j), "Z" + Convert.ToString(i) + Convert.ToString(j));
                }
            }

i am using this elseware. would this work if i used it instead of adding colums have it sequence through
or does that not work for classes
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cotj73Author Commented:
sorry here is a better look

for (int i = 0; i <= 6; i++)
            {
                for (int j = 0; j <= i; j++)
                {
                    "cZ" + Convert.ToString(i) + Convert.ToString(j);
                }
            }

and will this method work of all of the lines that i have to read
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microboltCommented:
Another option you have is creating an array in the class just for the cZ items and using the properties for the rest.  Like this:


            List<person> Persons = new List<person>();
            person newPerson = new person();
 
            for (int i = 0; i <= 6; i++)
            {
                for (int j = 0; j <= i; j++)
                {
                    newPerson.cz[int.Parse(Convert.ToString(i) + Convert.ToString(j))] = "Set the value for each field here";
                }
            }
 
            Persons.Add(newPerson);

Open in new window

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microboltCommented:
And declare the class like this:
class person
    {
        public int id { get; set; }
        public string firstname { get; set; }
        public string lastname { get; set; }
        public string[] cz {get; set;}
 
        public person()
        {
            cz = new string[67];
        }
    }

Open in new window

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cotj73Author Commented:
Great Help, Thank You
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