Replace string in string list with string list

Question

I am trying to replace from a list of strings, a found string with multiple strings. This is what I have so far:

private List<string> AddBinList( int CSNum,  List<string> dataLogLines)
    {
        foreach (var line in dataLogLines)
        {
            try
            {
                if (line.Contains("&ALLPASSBINNUMBER&") && line.Contains("&ALLPASSBINNAME&"))
                {
                    List<string> newLines = new List<string>();
                    foreach (var passBin in site[CSNum].Tokens.PassBins)
                    {
                        string outputLine = line.Replace("&ALLPASSBINNUMBER&", passBin.Value.ToString());
                        outputLine = line.Replace("&ALLPASSBINNAME&", passBin.Key);
                        newLines.Add(outputLine);
                    }

                    dataLogLines = dataLogLines.Select(x => x.Replace(line, newLines)).ToList();
                }
            }
            catch { }
        }
        return dataLogLines;
    }

EDITIORS NOTE: The problem the OP is having is

dataLogLines = dataLogLines.Select(x => x.Replace(line, newLines)).ToList();

is giving a compiler error.

What problem are you having? Also why are you catching all exceptions, it is likely hiding whatever is causing the program to not work. — Scott Chamberlain
– Scott Chamberlain, Commented Jun 3, 2013 at 21:10
the catch is for handling keys not present in dictionary. The replace is what doesn't work. I want to be able to replace from a list of strings, one string with a new list of multiple strings — tondre3na
– tondre3na, Commented Jun 3, 2013 at 21:15
I want to be able to replace from a list of strings, one string with a new list of multiple strings???? How about posting a sample input, expected output and a brief description? — I4V
– I4V, Commented Jun 3, 2013 at 21:15
This line looks like its going to be a problem, since you are modifying the dataLogLines variable while iterating over it. --> dataLogLines = dataLogLines.Select(x => x.Replace(line, newLines)).ToList(); — Mercurybullet
– Mercurybullet, Commented Jun 3, 2013 at 21:19
Sample input would be a string list like: {"item1","item2"}. Now I want to replace "item2" with new string list, i.e. {"item3","item4"} so my final list looks like {"item1","item3","item4"} — tondre3na
– tondre3na, Commented Jun 3, 2013 at 21:21

I4V · Accepted Answer · 2013-06-03 21:27:31Z

2

Sample input would be a string list like: {"item1","item2"}. Now I want to replace "item2" with new string list, i.e. {"item3","item4"} so my final list looks like {"item1","item3","item4"

List<string> list1 = new List<string>() { "item1", "item2" };
list1 = list1.SelectMany(x => x == "item2" ? new[] { "item3", "item4" } 
                                            : new[] { x })
             .ToList();

answered Jun 3, 2013 at 21:27

I4V

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