c# 2D array – merging Values

I have a 2 Dimensional string array(5*2) like this:

string[,] data= new string[5, 2] {{"F1","LINK1"},
{"F1","LINK2"},
{"F2","LINK3"},
{"F3","LINK4"},
{"F3","LINK5"}};

i want to group and merge the values into new array.

Output :

{"F1","LINK1,LINK2"},
{"F2","LINK3"},
{"F3","LINK4,LINK5"}

The output array 3*2.

Answers:

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Method 1

Something like that:

string[,] data= new string[5, 2] {{"F1","LINK1"},
    {"F1","LINK2"},
    {"F2","LINK3"},
    {"F3","LINK4"},
    {"F3","LINK5"}};

var items = Enumerable.Range(0, data.GetLength(0))
    .Select(n => new {Key = data[n, 0], Link = data[n, 1]});

var query =
    from i in items
    group i by i.Key
    into g
    select new []
    {
        g.Key,
        string.Join(",", g.Select(x => x.Link))
    };

var result = query.ToArray();


All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0

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