Change foreach to lambda

Question

I need a help with simpify this statement. How to change foreach to lambda

var r = mp.Call(c => c.GetDataset());   // returns IEnumerable of dataset      
foreach (DatasetUserAppsUsage item in r)
{
   datasetUserAppsUsage.Merge(item.AppsUsageSummary);
}

Answer 1

lambdas and loops are orthogonal. It is inappropriate to try to change them to brute-force one into the other. That code is fine. Leave it.

You can get .ForEach implementations, but it isn't going to make the code better (in fact, it will be harder to follow, i.e. worse), and it won't be more efficient (in fact, it will be marginally slower, i.e. worse).

Answer 2

You can do the following

r.ToList().ForEach(item => datasetUserAppsUsage.Merge(item.AppsUsageSummary);