Array problem

[princesszea]

Hi,

I have 2 arrays which I’m comparing values which works fine.

So basically I get the results from 2 arrays and compare the values and then add the missing files to a thrid array. The problem I have is when I added the missing files to the array I will like to add some more information to the missing file array.

e.g
array 1 array2 missingFileNames
1 1 4
2 2 5
3 3
4
5



So basically array2 has more information that I need to add to the missingFileNames. So instead of 4 I have 4 , Tim and 5, john
At the moment array2 only returns 1 item .

            ArrayList array2 = FileProcessor. Array2();
            ArrayList array1 =  FileProcessor. array1 ();
            ArrayList missingFileNames = new ArrayList();
            
            if (array1.Count > 0 && array2.Count > 0)
            {
                foreach (string fileName in array2)
                {
                    if (!array1.Contains(fileName))
                    {
                        
                        missingFileNames.Add(fileName);
                    }
                }
            }
        }

Thanks in advance

 

[ChewDoggie]

Your code conflicts with your drawn example:

To make the drawing match the code, it should be:

ArrayList array2 = FileProcessor. Array2();
ArrayList array1 =  FileProcessor. array1 ();
ArrayList missingFileNames = new ArrayList();

if (array1.Count > 0 && array2.Count > 0)
    {
    foreach (string fileName in array1)
        {
        if (!array2.Contains(fileName))
            {
            missingFileNames.Add(fileName);
            }
        }
    }

HTH

Chew

10% of your life is what happens to you. 90% of your life is how you deal with it.

 

[ChewDoggie]

Also, keep in mind that when you work with ArrayList, "boxing" occurs, which means that your value-type (string) is converted into a reference-type (object) just before you "Add" the member. Likewise, unboxing occurs when you attempt to read/delete members of an ArrayList.

C.


10% of your life is what happens to you. 90% of your life is how you deal with it.

 

[princesszea]

Thanks for your replies.

The problem is in array1 I'm getting one value string filename = items[0].ToString(); as this is the value that contains the filename to compare with array2. This works fine. what i need is to get items[0].ToString(); and items[1].ToString(); from array1. I need items[0].ToString(); to compare to the file name in array2 and if the file is not in array2 i need items[0].ToString(); and items[1].ToString(); to be added to the missingfilenames array. The code for array1 is below.

Thanks again

        public static ArrayList array1()
        {
            string csvfile = ConfigurationManager.AppSettings["CSVFile"].ToString
            string delimiter = ",";
         

            StreamReader sr = new StreamReader(csvfile);
            sr.ReadLine();
            ArrayList fileitems = new ArrayList();

            try
            {

                {
                    while (sr.EndOfStream == false)
                    {

                        string r = sr.ReadLine();
                        string[] items = r.Split(delimiter.ToCharArray());
                        string filename = items[0].ToString();
                       
                        if (r.Length == 0) continue;
                        fileitems.Add(filename.ToLower());
                    }
                }
            }
            finally
            {
                sr.Close();
            }
            return fileitems;
        }

 

[jmeckley]

if you want to add "more" information, create an object to hold the "extra" information and put them in to the array.

var dtos = new List<MyDto>();
dtos.Add(new MyDto{FileName = filename, I = 1, D = DateTime.Now});

where MyDto looks like this

class MyDto
{
  public string FileName {get;set;}
  public int I {get;set;}
  public DateTime D {get;set;}
}

Jason Meckley
Programmer
Specialty Bakers, Inc.

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