Question

I have a list of string items declared like this:

List<string> methodList = new List<string>();

I do what I need to get done and the results are something like this:

Method1;15
Method2;30
Method3;45
Method1;60

I need to loop through this list and display a distinct list and the addition of the totals. Something like this:

Method1 75
Method2 30
Method3 45

Answer 1

In order to do this, you’ll need to split this up, then sum:

 var results = methodList
                   .Select(l => l.Split(';'))
                   .GroupBy(a => a[0])
                   .Select(g => 
                       new 
                       {
                           Group = g.Key, 
                           Count = g.Count(),
                           Total = g.Sum(arr => Int32.Parse(arr[1])) 
                       });

 foreach(var result in results)
      Console.WriteLine("{0} {1} {2}", result.Group, result.Count, result.Total);