从文本文件中写入文本以列出C＃Windows Phone

Question

i am beginer and i don't know how to write from text file to list some strings. I mean i have a file :

A B
C D
E F
G H
...

and i want to write it to list but i dont know how, maybe it is simple but i tried something and it doesnt work. Now i have

List<List<string>> listaKolumn = new List<List<string>>();
var str = Application.GetResourceStream(new Uri("wzor.txt", UriKind.Relative));
StreamReader sreader = new StreamReader(str.Stream);

int x = 0;
while (!sreader.EndOfStream)
{
foreach (string k in sreader.ReadToEnd().Split(new char[] { ' ' }))
            {
                int j = 0;
                foreach (string l in k.Split(new char[] {' '}))
                {
                    if (listaKolumn.Count < k.Split(new char[] { ' '}).Length)
                    {
                        listaKolumn.Add(new List<string>());
                    }
                    //double temp2;
                    listaKolumn[j].Add(l);
                    j++;
                }
            }
}

but something is wrong. i know how it should be only in mind but i dontn know language very well and i can't write it.

IN SHORT i need this text wite in to multidimensional array like array[0][0] = A array[0][1]=B array[1][0] =C array[1][1] = D and so on

Answer 1

Here is a method to pass in the text file you displayed in the question and return a multidimensional array.

public string[][] MultiArrayFromTextFile(string filePath)
{
    return File.ReadLines(filePath).Select(s => s.Split(' ')).ToArray();
}

File.ReadLines(filePath) returns a collection of all lines in the text file

.Select is an extension method that takes a function.

s=>s.Split(' ') is the function passed into .Select , which splits the string s by all spaces and returns an array of strings.

.ToArray() takes the collection of string arrays created by .Select and makes an array out of that, so you get array of arrays.

You can access the items in the results like this...

Console.WriteLine(results[1][1]); // returns 'D' ... so 2nd item of 2nd array

Answer 2

If I understand you right this should do the trick var listaKolumn = new List();

        var sreader = new StreamReader(@"f:\wzor.txt");

        string line;
        while ((line = sreader.ReadLine())!=null)
        {
            listaKolumn.Add(line);
        }

There doesn't seem to be any reason for you to have a list of lists (List>) - that would give you to lists.

If you need to split on whitespaces you can do that in the while-loop, like

foreach (var parts in line.Split(' '))
                {
                    listaKolumn.Add(parts);    
                }

Or by using LINQ

listaKolumn.AddRange(line.Split(' '));

Hope this helps...

Answer 3

Okay - then I didn't understand it right. Found a smarter way to read the lines into a collection. This should get you pretty close at least :)

private static int LineCompare(string filepath1, string filepath2)
        {
            var result = 0;

            var list = File.ReadLines(filepath1).ToArray();
            var list2 = File.ReadLines(filepath2).ToArray();

            for (var i = 0; i < list.Length; i++)
            {
                if (list[i].Equals(list2[i]))
                    result++;
            }

            return result;
        }

Or the trimmed version:

private static int LineCompare(string filepath1, string filepath2)
        {
            var list = File.ReadLines(filepath1).ToArray();
            var list2 = File.ReadLines(filepath2).ToArray();

            return list.Where((t, i) => t.Equals(list2[i])).Count();
        }

This of course compares lines with the same index, so if you need to compare line 5 in file1 with line 2 in file2. You would need some kind of loop.