C# parse string split

Question

I have a file consisting of two columns that will be stored as a Dictionary where the first column will be the key, and the second column will be the value. The second column is delimited by whitespace, which may be any amount of spaces or tabs.

How do I store this in my Dictionary with the Split() function?

        recipesFile = new StreamReader(recipesRes.Stream);
        char[] splitChars = {'\t', ' '};

        while (recipesFile.Peek() > 0)
        {
            string recipesLine = "";
            recipesLine = recipesFile.ReadLine();
            string[] recipesInLine = recipesLine.Split(splitChars);

            recipes.Add(recipesInLine[0], recipesInLine[1]);
        }

Thanks

Yuriy Faktorovich · Accepted Answer · 2012-05-19 06:38:05Z

4

recipesLine.Split(splitChars, StringSplitOptions.RemoveEmptyEntries);

Also your code in general can be shortened to

var myDictionary = File.ReadLines(myFileName)
    .Select(l => l.Split(new []{'\t', ' '}, StringSplitOptions.RemoveEmptyEntries))
    .ToDictionary(a => a[0], a => a[1]);

edited May 19, 2012 at 6:38

answered May 19, 2012 at 6:31

Yuriy Faktorovich

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Comments

Heinzi · Accepted Answer · 2012-05-19 06:32:18Z

0

Since your entries are separated using multiple whitespace characters and Split splits on single characters, you need to remove empty entries. There's a separate String.Split overload for that purpose:

string[] recipesInLine = recipesLine.Split(splitChars, 
                                           StringSplitOptions.RemoveEmptyEntries);

answered May 19, 2012 at 6:32

Heinzi

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Comments

Community · Accepted Answer · 2017-05-23 12:11:28Z

0

firstly, use the file.readlines method. then you can use linq over the lines. http://msdn.microsoft.com/en-us/library/dd383503.aspx

Jon Skeet and Marc Gravell both have good examples on using linq to read files here, Reading a file line by line in C#.

Then use ToDictionary - Yuriy's answer is a good solution.

edited May 23, 2017 at 12:11

CommunityBot

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answered May 19, 2012 at 6:32

jflood.net

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