Question

I have a file with some key pair values

key1 = value1
key2 = value2

[section name]
key3 = value3
key4 = value4

so I don’t care about section names as the keys are unique. I just want to get the the value for an input key. I have the following to read the lines.

  var userDataLines = File.ReadAllLines(pathToFile);

and I have something like this

 var result = userDataLines.Select(userDataLine => userDataLine.Split(new[] { '=' }))
                           .Where(split => split.Length == 2);

gives me all the key value pairs in one collection.

but essentially I want to get a dictionary with keys and values from my file but not sure how to do that. Can anyone poing me in the right direction?

Thanks

Answer 1

You can use the ToDictionary Extension Method as follows:

var result = File.ReadLines(pathToFile)
                 .Select(line => line.Split(new[] { '=' }, 2))
                 .Where(split => split.Length == 2)
                 .ToDictionary(split => split[0], split => split[1]);

(Small improvements: use ReadLines instead of ReadAllLines, and split each line into at most 2 parts.)