Question

I’m trying to convert a list into a different format using linq.

The (simplified) data is as follows:

Code Name 
----------
X    Red  
Y    Yellow
Y    Red   
X    Blue  
Z    Green

And the format I’d like is:

“X: Red, Blue Y: Yellow, Red Z: Green”

I’d appreciate some tips on how to progress.

Thanks in advance,

Jose

Answer 1

List<Data> list = ...;
var query = list.GroupBy(d => d.Code, d => d.Name)
    .Select(g => g.Key + ": " + String.Join(", ", g));
string result = String.Join(" ", query);